Efficient energy-saving high-frequency explosion-proof reciprocating electromagnetic heater

Abstract

The invention discloses a high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater, belongs to the technical field of electric heating equipment, and aims to solve the potential safety hazard problem that a core tube and a shell of an electric heater are electrified due to induction of magnetic leakage caused by high-frequency electromagnetic radiation hazard and magnetic leakage of a high-frequency ionization magnetic field in the conventional petroleum and natural gas high-frequency electromagnetic heater. An adopted electromagnetic heater main body is composed of a shell steel sleeve barrel, a barrel connecting flange, a barrel inlet short section flange, a sand removal detection short section flange, a blow-off pipe connector, an electromagnetic heater mounting and fixing seat frame and a barrel screen cover end socket. The electromagnetic induction electric heating assembly is composed of an electric heating assembly inner core pipe, a high-frequency electromagnetic induction winding coil, a high-temperature insulation thermal insulation layer, an inner core pipe steel sheath shielding pipe, a steel sheath shielding pipe guide plate, a temperature sensor, an inner core pipe outlet short section pipe and the like. The device is practical in structure, and is suitable for oil field petroleum wellhead oil and gas production trees, oil and gas gathering and transportation pipelines and petrochemical production devices.

Description

Technical Field

[0001] The invention belongs to the technical field of electric heating equipment and relates to a device for high-frequency electromagnetic heating of oil and natural gas. Background Art

[0002] With the increasing development of the oil and gas industry and the continuous improvement of the safety and explosion-proof technical requirements for heating equipment in oil and gas production and transportation sites, the oil field industry has realized the safety management of the safe operation of oil production and transportation equipment and facilities without accidents and the comprehensive management goal of improving the economic and social benefits of oil fields. In the known technology, the existing oil and gas electromagnetic heater mainly has a manufacturing structure and process method of circumferentially winding a high-frequency winding induction coil on the wall of a ferromagnetic steel pipe and wrapping an insulating layer, and some of the high-frequency winding induction coils are directly exposed to the air in the external environment space, and there are safety hazards such as high-frequency electromagnetic radiation hazards and high-frequency ionization magnetic field leakage magnetic field leakage caused by the electric heater core tube and shell induction leakage magnetic field. Therefore, when the high-frequency electromagnetic heater with the existing structure is used in the production and operation of explosion-proof places such as oil field exploitation, transportation of oil and gas and petrochemical production, the high-frequency electromagnetic heater itself and the equipment connected to it have a high static voltage to the ground, especially when the system grounding fails in an unexpected state, it is easy to cause safety problems such as electric shock to personnel or static electricity explosion accidents in oil and gas explosion-proof places caused by static electricity sparks. Another example is the Chinese patent authorization announcement number CN204266990U, which discloses an explosion-proof petroleum electromagnetic heater, which is sequentially equipped with a ferromagnetic steel tube core, a steel inner casing and a steel outer casing from the inside to the outside, and the ferromagnetic steel tube core, the steel inner casing and the steel outer casing are connected with an explosion-proof junction box, and also includes an insulated electromagnetic wire, a conductive terminal column, and a heat insulation layer. The outer peripheral tube wall of the steel outer casing is equipped with a heat insulation layer, and an electromagnetic induction winding coil layer composed of an insulated electromagnetic wire is wound on the outer peripheral tube wall of the steel outer casing, and a protective layer is also installed outside the electromagnetic induction winding coil layer. The end of the insulated electromagnetic wire is connected to the conductive terminal column with an insulating sealing pad in the explosion-proof junction box. However, due to its structural limitations, the structural design of this product is applied to oil field exploitation, transportation of oil and natural gas, and petrochemical production, etc. There is still room for further improvement and innovation.

[0003] In view of this, in order to meet the needs of the development of high-frequency electromagnetic heaters in the oil and gas industry, it is necessary to further improve and develop a new type of high-frequency explosion-proof electromagnetic heating device for oil and gas. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the existing oil and gas high-frequency electromagnetic heaters have the potential safety hazards of high-frequency electromagnetic radiation hazards and high-frequency ionization magnetic field leakage magnetic field caused by the inductive magnetic leakage of the electric heater core tube and shell. The purpose of the present invention is to provide a new type of high-efficiency, energy-saving, high-frequency explosion-proof reciprocating electromagnetic heater device with a novel and practical overall structure, which does not have the hazards of high-frequency electromagnetic radiation and the inductive magnetic leakage of the electromagnetic heater caused by the high-frequency ionization magnetic field leakage magnetic field, is safe and convenient to use, and is energy-saving and power-saving in heating work. It can be applied to oil fields and petrochemical and other oil and gas explosion-proof application places.

[0005] The technical solution adopted by the present invention to solve the above problems is:

[0006] A high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, which comprises an electromagnetic heater main body, an electromagnetic induction electric heating component, and an explosion-proof junction box. The electromagnetic heater main body is a steel sleeve barrel type electromagnetic heater main body composed of an outer shell steel sleeve barrel, a barrel connecting flange, a barrel inlet short section flange, a sand cleaning detection short section flange, a sewage pipe joint, an electromagnetic heater installation and fixing seat frame, and a barrel screen cover head; the outer shell steel sleeve barrel bottom pipe mouth is welded with a barrel head, the bottom of the pipe body is welded with an electromagnetic heater installation and fixing seat frame, the top pipe mouth of the pipe body is welded with a barrel connecting flange, and the upper pipe body of the outer shell steel sleeve barrel is welded with a barrel inlet short section flange, and the lower pipe body is respectively welded with a sand cleaning detection short section flange and a sewage pipe joint, and the barrel connecting flange is connected to the electromagnetic induction electric heating component; the electromagnetic induction electric heating component is composed of an electric heating component inner core tube, a high-frequency electromagnetic induction winding coil, a high-temperature insulating layer, an inner core tube steel sheath shielding tube, a steel sheath shielding tube connecting flange, an inner core A high-frequency electromagnetic induction heat carrier electric heating component is connected by a pipe outlet pipe nipple connection flange, an inner core pipe guide plate, a steel sheath shielding pipe guide plate, a temperature sensor, an inner core pipe outlet nipple pipe, an inner core pipe connecting elbow, an inner core pipe expansion nipple pipe, an inner core pipe corrugated expansion joint, an inner core pipe expansion nipple pipe flange and an inner core pipe head of an electric heating component, wherein the steel sheath shielding pipe connection flange is sealed and connected to a cylinder connection flange and an inner core pipe expansion nipple pipe flange by fixing screws and is fixedly connected to an explosion-proof junction box; the explosion-proof junction box is a sealed explosion-proof heater electrical component junction box composed of an explosion-proof junction box end column mounting plate flange, a high-frequency power supply terminal column, a temperature sensor control power supply terminal column, a high-frequency power supply wire inlet sealing gland, a temperature sensor control power supply inlet sealing gland, a sealed cavity section tube explosion-proof junction box body, an explosion-proof junction box sealed cavity connection flange and an explosion-proof junction box sealing cover, wherein the explosion-proof junction box end column mounting plate flange is sealed and connected to the inner core pipe expansion nipple pipe flange by screws.

[0007] The above-mentioned high-efficiency and energy-saving high-frequency explosion-proof reciprocating electromagnetic heater, the inner core tube of the electric heating component of the high-frequency electromagnetic induction heat carrier electric heating component is vertically and coaxially inserted into the barrel tube cavity of the outer shell steel casing barrel, and the steel sheath shielding tube connecting flange is sealed and connected to the barrel connecting flange by fixing screws, forming a closed flow channel for electromagnetic induction heating and fluid medium circulation heat exchange of the high-frequency explosion-proof reciprocating electromagnetic heater.

[0008] The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater described above, wherein the inner core tube of the high-frequency electromagnetic induction heat carrier electric heating component in the high-frequency electromagnetic induction heat carrier electric heating component is welded with a spiral guide plate, and the outer wall of the tube body is respectively structured and sequentially provided with a high-temperature insulating layer and a high-frequency induction winding coil wound outside the insulating layer, and the inner core tube of the high-frequency electromagnetic induction heat carrier electric heating component is coaxially inserted into the tube cavity of the inner core tube steel sheath shielding tube, and the inner core tube steel sheath shielding tube is provided with a high-temperature insulating layer and a high-frequency induction winding coil wound around the outer wall of the tube body. A guide plate is welded on the outer tube wall of the steel pipe, the lower end tube head of the inner core tube of the electric heating component is welded to the bottom tube end of the outer steel sheath shielding tube of the electric heating component through the inner core tube head of the electric heating component welded to each other through the sealing welding, and a temperature sensor is sandwiched between the inner core tube of the electric heating component and the high-temperature insulating layer. The top tube head of the inner core tube of the electric heating component is welded with an inner core tube connecting elbow connected to the inner core tube outlet short tube, which is composed of a bent short tube section, and the inner core tube outlet short tube passes through and through the wall of the inner core tube expansion short tube. The inner core tube outlet short-joint tube is welded and sealed as a whole. The other end of the inner core tube outlet short-joint tube is welded with the inner core tube outlet pipe short-joint connecting flange. The high-frequency electromagnetic induction heating and heat exchange of the inner core tube of the electric heating component and the closed oil flow outlet passage are formed. The steel sheath shielding tube connecting flange is welded to the top opening of the inner core tube steel sheath shielding tube body, and the outer end face side of the flange is welded to the inner core tube expansion short-joint tube with a corrugated expansion joint on the tube wall. The inner core tube expansion short-joint tube is a tube body top opening welded with an inner core tube expansion short-joint tube flange and a short-joint tube An inner core tube corrugated expansion joint is welded on the tube body, the inner core tube expansion nipple tube flange and the explosion-proof junction box end column mounting plate flange of the explosion-proof junction box are fastened and sealed together by screws, the steel sheath shielding tube connecting flange is sealed and connected to the cylinder connecting flange by fixing screws, the inner core tube expansion nipple tube flange and the explosion-proof junction box end column mounting plate flange of the explosion-proof junction box are fastened and sealed together by screws, and the composition forms a high-frequency electromagnetic induction heat carrier electric heating component with high-frequency inductance leakage magnetic radiation shielding absorption.

[0009] The above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the outer steel casing tube type electromagnetic heater body has an outer steel casing tube connecting flange at the upper pipe mouth of the outer shell steel casing tube body, the lower pipe mouth and the tube head are sealed and welded to each other, the electromagnetic heater installation and fixing frame is welded on the lower end pipe wall of the outer shell steel casing tube body, the outer shell steel casing tube body is welded at the lower end of the outer shell steel casing tube body near the outer shell steel casing tube body connecting flange end side, and the outer shell steel casing tube body inlet short-circuit flange is welded, and the sand cleaning detection short section flange hole and the sewage pipe joint are welded on the tube wall of the outer shell steel casing tube body near the upper end side of the electromagnetic heater installation and fixing frame to form a closed outer shell steel casing tube body.

[0010] In the above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the cylinder head and the inner core tube head of the electric heating component are heads of any structure of a screen cover, a spherical head, or an elliptical head.

[0011] The above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the cylinder head is composed of a matching flange composed of a first cylinder pipe matching flange and a second cylinder pipe matching blind flange correspondingly connected to the lower end of the outer shell steel sleeve cylinder main pipe, and a sealing gasket is installed between the two flanges and is sealed and connected with screws, and a ∪-shaped head type cylinder screen cover head is connected to the bottom of the second cylinder pipe matching blind flange; the sewage pipe joint is connected to the bottom of the ∪-shaped head type cylinder screen cover head.

[0012] The above-mentioned high-efficiency and energy-saving high-frequency explosion-proof reciprocating electromagnetic heater, the sealed explosion-proof heater electrical component junction box is a tube seat body structure with an explosion-proof cavity in the top opening box, the bottom of the sealed cavity section tube explosion-proof junction box body is welded with an explosion-proof junction box terminal column mounting plate flange, and the upper end is welded with an explosion-proof junction box sealed cavity connecting flange, the terminal column mounting plate of the connecting flange plate of the explosion-proof junction box terminal column mounting plate flange is equipped with a high-frequency power supply terminal and a temperature sensor terminal, the tube wall of the explosion-proof wiring sealed cavity section tube is respectively welded with a high-frequency power supply wire explosion-proof gland and a temperature signal wire explosion-proof gland, the high-frequency power supply terminal and the temperature sensor terminal are respectively connected to the power transmission terminal of the high-frequency induction winding coil and the temperature sensor control terminal at their inner end sides, and are respectively connected to the high-frequency input power terminal and the temperature controller control power terminal at their outer end sides, the explosion-proof cavity connecting flange and the explosion-proof cavity sealing cover are mutually fastened and sealed with screws to form an explosion-proof junction box for explosion-proof wiring of high-frequency power transmission and temperature control power transmission circuits.

[0013] In the above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the guide plate structurally welded on the outer peripheral tube wall of the inner core tube steel sheath shielding tube is any inner core tube steel sheath shielding tube in the shape of a spiral or a semicircular partition.

[0014] In the above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the inner core tube corrugated expansion joint is any one of a single-wave or multi-wave inner core tube corrugated expansion joint.

[0015] The above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the outer shell steel sleeve cylinder body is welded with a tube structure at the cylinder head, which is welded with an electromagnetic heater ⊥-shaped conical vertical pipe frame and an electromagnetic heater leg-type frame, which is composed of a vertical structure high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, or the outer shell steel sleeve body main pipe is welded with 2-4 electromagnetic heater saddle-type frames on the pipe side wall structure, which is composed of a horizontal structure high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater; the electromagnetic heater ⊥-shaped conical vertical pipe frame is composed of a circular vertical connecting pipe section with a shell steel sleeve body main pipe body at the top and a disc seat at the bottom; the electromagnetic heater leg-type seat is composed of 3-4 evenly distributed channel steels or angle steel legs connected to the shell steel sleeve body main pipe body at the top and a disc seat at the bottom.

[0016] The above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, the high-temperature insulating layer is a solid high-temperature insulating material layer with a height of 2 to 5 mm or any one of the non-magnetic metal tubular, grooved, and angular profile overhead composite insulating layers.

[0017] When the present invention is used, according to design requirements and actual needs, the corresponding vertical structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater or the horizontal structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater is installed in a structural form and mounted on the corresponding oil wellhead oil and gas production tree mechanism's oil pipeline and oil storage gas storage tank and other equipment devices of the oil field gathering and transportation oil and gas pipeline or in the process flow of the petrochemical production device, the high-frequency power supply terminal column and the temperature sensor terminal column are respectively connected to the high-frequency input power supply terminal and the temperature controller control power supply terminal, and the intelligent temperature controller of the device is used to perform constant temperature control of the heating operation and automatically adjust and control the output of the heating power supply frequency of 8-35Khz and the power output of 30-100% of the rated high-frequency current, so as to perform high-frequency electromagnetic heating operation in oil and gas production and petrochemical production.

[0018] Since the design of the present invention adopts the above technical scheme, the technical principle adopted is to shield and absorb the energy of ionizing radiation and stray magnetic field with ferromagnetic steel casing and convert it into magnetothermal, that is, the inner core tube steel sheath shielding tube of ferromagnetic ionizing radiation and stray magnetic field is sealed and welded on the outside of the high-frequency induction winding coil, so that the energy of ionizing radiation and stray magnetic field is shielded and absorbed by the steel casing to form a relative ring effect heat to be released, that is, the harm of ionizing radiation and stray magnetic field is eliminated, and the overall heating energy of the high-frequency electromagnetic heater is increased accordingly, so that the technical scheme as a whole does not have the harm of high-frequency electromagnetic radiation and the inductance leakage of the electromagnetic heater caused by the leakage of high-frequency ionizing magnetic field, so that the equipment itself and the connected equipment shell to generate electrostatic voltage to the ground is charged, which effectively solves the safety hazard problem of the existing oil and gas high-frequency electromagnetic heaters that have the harm of high-frequency electromagnetic radiation and the leakage of high-frequency ionizing magnetic field. The core tube and the shell of the electric heater have inductive leakage and magnetic tape electrification caused by magnetic field. The results of actual operation tests have shown that it has a novel and practical overall structure. The overall structure of the product is free from the hazards of high-frequency electromagnetic radiation and the inductance leakage of electromagnetic heaters caused by high-frequency ionizing magnetic field leakage. It is safe and convenient to use, and the heating operation is energy-saving and power-saving. It is suitable for high-frequency explosion-proof electromagnetic heating operations in oil wellhead Christmas trees, gas trees, oil gathering pipelines, gas pipelines, oil storage and gas tanks, and petrochemical production equipment.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become obvious from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a specific structural schematic diagram of an embodiment of a vertical structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater of the present invention.

[0022] Figure 2 yes Figure 1 The cylinder head in the embodiment is an enlarged structural schematic diagram of a vertical structural steel sleeve cylinder type electromagnetic heater body in which the cylinder screen cover head is provided.

[0023] Figure 3 yes Figure 1The barrel head in the embodiment is a matching flange welded on the lower end of the outer shell steel sleeve barrel main pipe, which is composed of a first barrel pipe matching flange and a second barrel pipe matching blind flange corresponding to it, and a sealing gasket is installed between the two flanges and is sealed and connected with screws, and a ∪-shaped barrel screen cover is connected to the bottom of the second barrel pipe matching blind flange; the sewage pipe joint (104) is connected to the bottom of the ∪-shaped barrel screen cover.

[0024] Figure 4 yes Figure 3 Embodiment The enlarged structural diagram of the main body of the vertical structural steel sleeve tube type electromagnetic heater of the electromagnetic heater leg type frame.

[0025] Figure 5 yes Figure 1 An enlarged structural diagram of the high-frequency electromagnetic induction heat carrier electric heating component in the embodiment.

[0026] Figure 6 yes Figure 1 A schematic diagram of the structure of a sealed explosion-proof heater electrical component junction box in an embodiment.

[0027] Figure 7 It is a specific structural schematic diagram of another embodiment of a horizontal structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater of the present invention.

[0028] The numbers in the attached drawings are: 1-steel casing tube electromagnetic heater body; 101-shell steel casing tube body connection flange; 102-shell steel casing tube body inlet short section flange; 103-sand cleaning detection short section flange; 104 sewage pipe joint; 105-electromagnetic heater ⊥-shaped cone vertical pipe frame; 1051-electromagnetic heater leg type frame; 106-cylinder screen cover head; 107-shell steel casing body main pipe; 108-first cylinder matching sealing flange; 1081-second cylinder matching sealing blind plate flange; 1082-elliptical head; 109-electromagnetic heater saddle frame; 2-high-frequency electromagnetic induction heat carrier electric heating component; 201-electric heating component inner core tube; 202-high-frequency electromagnetic induction winding coil; 203-high-temperature insulation layer; 204-inner core tube steel sheath shielding tube; 205-inner core tube steel sheath shielding tube connection flange; 20 6-connecting flange for outlet of inner core tube of electric heating component; 207-guide plate for inner core tube; 208-guide plate for steel sheath shielding tube; 209-temperature sensor; 210-stub tube for outlet of inner core tube; 211-connecting elbow for inner core tube; 212-expansion stub tube for inner core tube; 213-corrugated expansion joint for inner core tube; 214-connecting flange for expansion stub tube for inner core tube; 215-elliptical end cap for inner core tube of electric heating component; 3-sealed explosion-proof heater electrical component junction box; 301-flange for mounting plate of terminal column of explosion-proof junction box; 302-high-frequency power supply terminal column; 303-temperature sensor control power supply terminal column; 304-sealed gland for inlet of high-frequency power supply wire; 305 sealed gland for control power supply wire of temperature sensor; 306-stub tube for sealing cavity of explosion-proof junction box; 307-connecting flange for sealing cavity of explosion-proof junction box; 308-sealed cover for explosion-proof junction box. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inside", "outside", "top", "bottom", "front end", "rear end", "head", "tail", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the present invention.

[0031] As attached Figure 1-Figure 2 , Figure 4-Figure 5As shown, this embodiment includes: an electromagnetic heater body, an electromagnetic induction electric heating component, and an explosion-proof junction box. The electromagnetic heater body is composed of a steel sleeve barrel type electromagnetic heater body 1 which is connected by a shell steel sleeve body main pipe 107, a barrel connecting flange 101, a barrel inlet short section flange 102, a sand cleaning detection short section flange 103, a sewage pipe joint 104 and a barrel head; the bottom pipe opening of the shell steel sleeve body main pipe 107 is welded with a barrel head, and the top pipe opening of the pipe body is welded with a barrel connecting flange 101, and the upper pipe opening of the shell steel sleeve barrel is welded with a barrel head. The upper pipe body is welded with a cylinder inlet short section flange 102, and the lower pipe body is respectively welded with a sand cleaning detection short section flange 103 and a sewage pipe joint 104. The cylinder connection flange 101 is connected to the electromagnetic induction electric heating component; the electromagnetic induction electric heating component is composed of an electric heating component inner core tube 201, a high-frequency electromagnetic induction winding coil 202, a high-temperature insulation layer 203, an inner core tube steel sheath shielding tube 204, a steel sheath shielding tube connection flange 205, an inner core tube outlet pipe short section connection flange 206, an inner core tube guide plate 207, and a steel sheath shielding tube The guide plate 208, the temperature sensor 209, the inner core tube outlet short joint 210, the inner core tube connecting elbow 211, the inner core tube expansion short joint 212, the inner core tube corrugated expansion joint 213, the inner core tube expansion short joint flange 214 and the inner core tube head of the electric heating component are connected to form a high-frequency electromagnetic induction heat carrier electric heating component 2, the steel sheath shielding tube connecting flange 205 is sealed and connected to the cylinder connecting flange 101 by fixing screws, and the inner core tube expansion short joint flange 214 is fixedly connected to the explosion-proof junction box; the explosion-proof junction box is an explosion-proof junction box end A sealed explosion-proof heater electrical component junction box 3 is composed of a column mounting plate flange 301, a high-frequency power supply terminal column 302, a temperature sensor control power supply terminal column 303, a high-frequency power supply wire inlet sealing gland 304, a temperature sensor control power supply inlet sealing gland 305, a sealed cavity joint tube type explosion-proof junction box body 306, an explosion-proof junction box sealed cavity connecting flange 307 and an explosion-proof junction box sealing cover 308. The explosion-proof junction box terminal column mounting plate flange 301 is sealed and connected to the inner core tube expansion short joint tube flange 214 by screws.

[0032] For example, see the attached Figure 1-Figure 2 , Figure 4 The inner core tube 201 of the electric heating component of the high-frequency electromagnetic induction heat carrier electric heating component 2 described in this embodiment is vertically and coaxially inserted into the outer shell steel sleeve body main pipe 107 cylinder body cavity of the outer shell steel sleeve cylinder body 1, and the steel sheath shielding tube connecting flange 205 is sealed and connected to the cylinder connecting flange 101 by fixing screws, forming a closed flow channel for electromagnetic induction heating and fluid medium circulation heat exchange of the high-frequency explosion-proof reciprocating electromagnetic heater.

[0033] Preferably, see the attached Figure 1 , Figure 4The high-frequency electromagnetic induction heat carrier electric heating component 2 of the embodiment described in the embodiment has a spiral guide plate 207 welded to the inner tube body cavity structure of the inner core tube 201, and the outer wall of the tube body is respectively structured and sequentially provided with a high-temperature insulation layer 203 and a high-frequency induction winding coil 202 wound outside the insulation layer. The inner core tube 201 of the high-frequency electromagnetic induction heat carrier electric heating component is coaxially inserted into the tube cavity of the inner core tube steel sheath shielding tube 204, and the guide plate 208 is welded on the outer tube wall of the steel tube of the inner core tube steel sheath shielding tube 204. The lower end of the inner core tube 201 of the electric heating component is welded to the inner core tube head of the electric heating component through the bottom tube end of the outer steel sheath shielding tube 204 of the electric heating component. A temperature sensor 209 is sandwiched between the inner core tube 201 of the electric heating component and the high-temperature insulating layer 203. The top tube head of the inner core tube 201 of the electric heating component is welded with an inner core tube connecting elbow 211 connected to the inner core tube outlet short section 210, and the inner core tube outlet short section 210 passes through and is welded to the wall of the inner core tube expansion short section 212. The inner core tube outlet short-joint tube 210 is welded with the inner core tube outlet short-joint connecting flange 206 at the other end of the tube mouth, and the inner core tube 201 of the electric heating component is formed to have high-frequency electromagnetic induction heating and heat exchange and a closed oil flow outlet passage. The steel sheath shielding tube connecting flange 205 is welded to the top opening of the inner core tube steel sheath shielding tube 204, and the outer end face of the flange is welded to the inner core tube expansion short-joint tube 212 with a corrugated expansion joint on the tube wall. The inner core tube expansion short-joint tube 212 is a tube body top opening welded with the inner core tube expansion short-joint tube flange 214 and a short-joint tube pipe. An inner core tube corrugated expansion joint 213 is welded on the body, the inner core tube expansion short joint pipe flange 214 and the explosion-proof junction box end column mounting plate flange 301 of the explosion-proof junction box are fastened and sealed together as a whole by screws, and the steel sheath shielding tube connecting flange 205 is sealed and connected to the cylinder connecting flange 101 by fixing screws. The inner core tube expansion short joint pipe flange 214 and the explosion-proof junction box end column mounting plate flange 301 of the explosion-proof junction box are fastened and sealed together by screws, forming a high-frequency electromagnetic induction heat carrier electric heating component 2 with high-frequency inductance leakage magnetic radiation shielding absorption.

[0034] For details, see the attached Figure 1-Figure 2 The upper end pipe opening of the outer steel sleeve body main pipe 107 of the outer steel sleeve barrel electromagnetic heater body 1 described in this embodiment is welded with a sewage pipe joint connecting flange 101, and the lower end pipe opening is welded with the barrel head to be sealed and connected to each other. The lower end of the outer steel sleeve barrel 107 near the end side of the connecting flange 101 is welded with an outer steel sleeve barrel inlet short-circuit flange 102. The pipe wall of the outer steel sleeve barrel connected to the barrel head is respectively welded with a sand cleaning detection short section flange hole 103 and a sewage pipe joint 104 to form a closed outer steel sleeve barrel 1.

[0035] For further details, see the attached Figure 3 The cylinder head described in this embodiment is composed of a first cylinder pipe matching flange 108 and a second cylinder pipe matching blind flange 1081 correspondingly connected to the lower end of the outer shell steel sleeve cylinder main pipe 107, and a matching flange composed of a sealing gasket installed between the two flanges and fastened with screws for sealing connection, and a ∪-shaped head type cylinder screen cover head 1082 is connected to the bottom of the second cylinder pipe matching blind flange 1081; the sewage pipe joint 104 is connected to the bottom of the ∪-shaped head type cylinder screen cover head 1082.

[0036] Preferably, attend the attached Figure 1 , Figure 4 The sealed explosion-proof heater electrical component junction box 3 of this embodiment is a tube seat structure with an explosion-proof cavity in the top opening box. The bottom of the sealed cavity section tube explosion-proof junction box body 306 is welded with an explosion-proof junction box terminal column mounting plate flange 301, and the upper end is welded with an explosion-proof junction box sealed cavity connecting flange 307. The terminal column mounting plate of the connecting flange plate of the explosion-proof junction box terminal column mounting plate flange 301 is equipped with a high-frequency power supply terminal column 302 and a temperature sensor terminal column 303. The wall of the explosion-proof wiring sealed cavity section tube 306 is respectively welded with a high-frequency power supply terminal column 302 and a temperature sensor terminal column 303. The power conductor explosion-proof gland 304 and the temperature signal conductor explosion-proof gland 305, the high-frequency power terminal 302 and the temperature sensor terminal 303 have their inner ends respectively connected to the power transmission terminal and the temperature sensor control terminal of the high-frequency induction winding coil 202, and their outer ends respectively connected to the high-frequency input power terminal and the thermostat control power terminal, the explosion-proof cavity connecting flange 307 and the explosion-proof cavity sealing cover 308 are fastened and sealed with screws to form an explosion-proof junction box for explosion-proof wiring of high-frequency power transmission and temperature control power transmission circuits.

[0037] For example, see the attached Figure 1 In this embodiment, the guide plate 208 structurally welded on the outer peripheral tube wall of the inner core tube steel sheath shielding tube 204 is a spiral inner core tube steel sheath shielding tube.

[0038] For further details, see the attached Figure 1 , Figure 4 The inner core tube corrugated expansion joint 213 described in this embodiment is a single-wave inner core tube corrugated expansion joint.

[0039] Preferably, see the attached Figure 1 , Figure 3In this embodiment, the outer shell steel sleeve main pipe 107 pipe body is welded with the pipe body structure at the cylinder head and welded with the electromagnetic heater ⊥-shaped conical vertical pipe seat 105 to form a vertical structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater; the electromagnetic heater ⊥-shaped conical vertical pipe seat 105 is composed of a circular vertical pipe section with the shell steel sleeve main pipe 107 pipe body connected to the top and the disc seat body connected to the bottom.

[0040] For further preferred embodiment, see the attached Figure 4 In this embodiment, the outer shell steel sleeve main pipe 107 is welded with the pipe body structure at the cylinder head and welded with the electromagnetic heater leg-type frame 1051 to form a vertical structure, high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater. The electromagnetic heater leg-type frame 1051 is composed of 3 evenly distributed channel steel legs connected to the shell steel sleeve main pipe 107 at the top and the disc seat at the bottom.

[0041] Preferably, see the attached Figure 6 In this embodiment, the outer shell steel sleeve main pipe 107 has a horizontal structure, and the structure is welded with three electromagnetic heater saddle-type brackets 109 to form a high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater.

[0042] For example, see the attached Figure 1 The high temperature insulation layer 203 described in this embodiment is a high temperature insulation layer with a high temperature insulation material composite layer applied on the top of a non-magnetic stainless steel square tube with a height of 3.5 mm.

[0043] For details, see 1- Figure 4 The cylinder head described in this embodiment is a cylinder screen cover head 106 with a screen cover-shaped structure, and the inner core tube head of the electric heating short joint flange assembly is an elliptical head structure of the electric heating short joint flange assembly inner core tube elliptical head 215; the screen cover-shaped structure head includes any one of a ∪-shaped head type cylinder screen cover head and a п-shaped head type cylinder screen cover head; the cylinder screen cover head 106 described in this embodiment is a ∪-shaped head type cylinder screen cover head.

[0044] The above is only one embodiment. On this basis, other technical features and technical solutions derived by adding components, equivalent substitutions and local improvements without creative work by technicians in this field are all within the scope of protection of the patent of this invention.

Claims

1. A high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, which includes an electromagnetic heater body, an electromagnetic induction heating component, and an explosion-proof junction box, characterized in that: The electromagnetic heater body is a steel sleeve tube type electromagnetic heater body (1) which is connected by an outer shell steel sleeve body main pipe (107), a tube connection flange (101), a tube inlet short section flange (102), a sand cleaning detection short section flange (103), a sewage pipe joint (104) and a tube head; the tube bottom opening of the outer shell steel sleeve body main pipe (107) is welded with a tube head, the tube top opening is welded with a tube connection flange (101), and the upper tube of the outer shell steel sleeve tube (107) is welded with a tube inlet short section flange (102), and the lower tube is respectively welded with a sand cleaning detection short section flange (103) and a sewage pipe joint (104); the tube connection flange (101) is connected to an electromagnetic induction heating component; The electromagnetic induction electric heating component is a high-frequency electromagnetic induction heat carrier electric heating component (2) composed of an electric heating component inner core tube (201), a high-frequency electromagnetic induction winding coil (202), a high-temperature insulating layer (203), an inner core tube steel sheath shielding tube (204), a steel sheath shielding tube connecting flange (205), an inner core tube outlet pipe nipple connecting flange (206), an inner core tube guide plate (207), a steel sheath shielding tube guide plate (208), a temperature sensor (209), an inner core tube outlet nipple tube (210), an inner core tube connecting elbow (211), an inner core tube expansion nipple tube (212), an inner core tube corrugated expansion joint (213), an inner core tube expansion nipple tube flange (214) and an electric heating component inner core tube sealing head, wherein the steel sheath shielding tube connecting flange (205) is fixedly connected to an explosion-proof junction box by a fixing screw sealing connection cylinder connecting flange (101) and an inner core tube expansion nipple tube flange (214); The explosion-proof junction box is a sealed explosion-proof heater electrical component junction box (3) composed of an explosion-proof junction box terminal column mounting plate flange (301), a high-frequency power supply terminal column (302), a temperature sensor control power supply terminal column (303), a high-frequency power supply wire inlet sealing gland (304), a temperature sensor control power supply inlet sealing gland (305), a sealed cavity joint tube type explosion-proof junction box body (306), an explosion-proof junction box sealed cavity connecting flange (307) and an explosion-proof junction box sealing cover (308), wherein the explosion-proof junction box terminal column mounting plate flange (301) is connected to an inner core tube expansion short joint tube flange (214) by screw sealing.

2. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The inner core tube (201) of the electric heating component of the high-frequency electromagnetic induction heat carrier electric heating component (2) is vertically and coaxially inserted into the tube cavity of the outer steel sleeve body main tube (107) of the outer steel sleeve body (1), and the steel sheath shielding tube connecting flange (205) is sealed and connected to the cylinder body connecting flange (101) by fixing screws, thereby forming a closed flow channel for electromagnetic induction heating and fluid medium circulation heat exchange of the high-frequency explosion-proof reciprocating electromagnetic heater.

3. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The high-frequency electromagnetic induction heat carrier electric heating component (2) has a spiral guide plate (207) welded to the inner structure of the tube body cavity of the inner core tube (201) of the high-frequency electromagnetic induction heat carrier electric heating component, and a high-temperature insulation layer (203) and a high-frequency induction winding coil (202) are respectively structured and sequentially installed around the outer wall of the tube body, and the tube body of the inner core tube (201) of the high-frequency electromagnetic induction heat carrier electric heating component is coaxially inserted into the tube cavity of the inner core tube steel sheath shielding tube (204), and a guide plate (208) is welded to the outer wall of the steel tube of the inner core tube steel sheath shielding tube (204), and the electric The lower end pipe head of the inner core pipe (201) of the heating component is welded to the inner core pipe head of the electric heating component through the bottom pipe end of the outer steel sheath shielding pipe (204) of the electric heating component, and is sealed and welded to form an integral whole. A temperature sensor (209) is sandwiched between the inner core pipe (201) of the electric heating component and the high-temperature insulating layer (203). The top pipe head of the inner core pipe (201) of the electric heating component is welded to a bent short-joint pipe section composed of an inner core pipe connecting elbow (211) connected to an inner core pipe outlet short-joint pipe (210). The inner core pipe outlet short-joint pipe (210) passes through and is welded to the pipe wall of the inner core pipe expansion short-joint pipe (212). The inner core tube outlet short-joint tube (210) is welded with an inner core tube outlet short-joint connecting flange (206) at the other end of the tube mouth, and the inner core tube (201) of the electric heating component is heated and heat-exchanged by high-frequency electromagnetic induction and is a sealed oil flow outlet passage. The steel sheath shielding tube connecting flange (205) is welded to the top opening of the inner core tube steel sheath shielding tube (204) tube body, and the outer end face of the flange is welded to the tube wall with a corrugated expansion joint of the inner core tube expansion short-joint tube (212). The inner core tube expansion short-joint tube (212) is a tube body top opening welded with an inner core tube expansion short-joint tube flange (214) and a short-joint tube. An inner core tube corrugated expansion joint (213) is welded on the body; the inner core tube expansion short joint pipe flange (214) and the explosion-proof junction box end column mounting plate flange (301) of the explosion-proof junction box are mutually fastened and sealed as a whole by screws; the steel sheath shielding tube connection flange (205) is sealed and connected to the cylinder body connection flange (101) by fixing screws; the inner core tube expansion short joint pipe flange (214) and the explosion-proof junction box end column mounting plate flange (301) of the explosion-proof junction box are mutually fastened and sealed as a whole by screws, thereby forming a high-frequency electromagnetic induction heat carrier electric heating component (2) with high-frequency inductance leakage magnetic radiation shielding absorption.

4. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The outer steel sleeve barrel electromagnetic heater main body (1) has an outer steel sleeve barrel main pipe (107) with an outer steel sleeve barrel connecting flange (101) welded to the upper pipe opening, and a lower pipe opening is welded to the barrel head in a sealing manner. An outer steel sleeve barrel inlet short-circuit flange (102) is welded to the lower end of the outer steel sleeve barrel connecting flange (101) end side, and a sand cleaning detection short-joint flange hole (103) and a sewage pipe joint (104) are welded to the pipe wall of the outer steel sleeve barrel connecting barrel head, thereby forming a closed outer steel sleeve barrel (1).

5. A high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1 or 4, characterized in that: The cylinder head and the inner core tube head of the electric heating component are heads of any structure of a screen cover shape, a spherical shape, or an elliptical shape.

6. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 5, characterized in that: The cylinder head is composed of a first cylinder pipe matching flange (108) and a second cylinder pipe matching blind flange (1081) welded to the lower end of the outer shell steel sleeve cylinder main pipe (107), and a sealing gasket is installed between the two flanges and is sealed and connected with screws, and a ∪-shaped head type cylinder screen cover head (1082) is connected to the bottom of the second cylinder pipe matching blind flange (1081); the sewage pipe joint (104) is connected to the bottom of the ∪-shaped head type cylinder screen cover head (1082).

7. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The sealed explosion-proof heater electrical component junction box (3) is a cylindrical seat structure with an explosion-proof cavity in the box with an opening at the top. The bottom of the sealed cavity segmented tube explosion-proof junction box body (306) is welded with an explosion-proof junction box terminal column mounting plate flange (301), and the upper end is welded with an explosion-proof junction box sealed cavity connecting flange (307). The terminal column mounting plate of the connecting flange plate of the explosion-proof junction box terminal column mounting plate flange (301) is connected with a high-frequency power supply terminal column (302) and a temperature sensor terminal column (303). The wall of the explosion-proof wiring sealed cavity segmented tube (306) is respectively welded with a high-frequency power supply terminal column (302) and a temperature sensor terminal column (303). The wire explosion-proof gland (304) and the temperature signal wire explosion-proof gland (305), the high-frequency power supply terminal block (302) and the temperature sensor terminal block (303) have their inner ends connected to the power transmission terminal block of the high-frequency induction winding coil (202) and the temperature sensor control terminal block respectively, and their outer ends are respectively connected to the high-frequency input power supply terminal block and the temperature controller control power supply terminal block. The explosion-proof cavity connection flange (307) and the explosion-proof cavity sealing cover (308) are mutually fastened and sealed with screws to form an explosion-proof junction box for explosion-proof wiring of high-frequency power supply transmission and temperature control power supply transmission circuits.

8. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The guide plate (208) structurally welded on the outer peripheral tube wall of the inner core tube steel sheath shielding tube (204) is any inner core tube steel sheath shielding tube in the shape of a spiral or a semicircular partition.

9. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The inner core tube corrugated expansion joint (213) is any one of a single-wave or multi-wave inner core tube corrugated expansion joint.

10. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The outer shell steel sleeve main pipe (107) is welded with a pipe structure at the end of the cylinder body, and is welded with an electromagnetic heater ⊥-shaped conical vertical pipe frame (105) and an electromagnetic heater leg-type frame (1051) to form a vertical structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater, or the outer shell steel sleeve main pipe (107) is welded with 2-4 electromagnetic heater saddle-type frames (109) on the pipe side wall structure to form a horizontal structure high-efficiency energy-saving high-frequency explosion-proof reciprocating electromagnetic heater; the electromagnetic heater ⊥-shaped conical vertical pipe frame (105) is composed of a circular vertical pipe joint connected to the outer shell steel sleeve main pipe (107) at the top and a disc seat at the bottom; the electromagnetic heater leg-type frame (1051) is composed of 3-4 evenly distributed channel steel or angle steel legs connected to the outer shell steel sleeve main pipe (107) at the top and a disc seat at the bottom.

11. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The high-temperature insulating layer (203) is a solid high-temperature insulating material layer with a height of 2 to 5 mm or any high-temperature insulating layer composed of a non-magnetic metal tubular, grooved or angular profile suspended in the air and a thermal insulating composite layer applied on the top.

Images