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

Abstract

The utility model 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 utility model 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 increasing requirements for safety and explosion-proof technology of heating equipment in oil and gas production and transportation sites, in order to achieve the comprehensive management goals of the oil field industry for the safe operation of oil production and transportation equipment and facilities and the improvement of economic and social benefits of oil fields, the existing oil and gas electromagnetic heaters in the prior art mainly adopt the manufacturing structure and process method of circumferentially winding a high-frequency winding induction coil on the wall of a ferromagnetic steel pipe and wrapping it with an insulating layer. In addition, some 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 ionizing magnetic field leakage caused by induction magnetic leakage of the electric heater core tube and shell. Therefore, when the high-frequency electromagnetic heater with the existing structure is used in explosion-proof sites such as oil field production, oil and gas transportation, and petrochemical production, the high-frequency electromagnetic heater itself and the equipment connected to it have a high static voltage to the ground. In particular, if the system grounding fails in an unexpected state, it is easy to cause electric shock to personnel or static electricity explosion accidents in oil and gas explosion-proof sites due to static electricity sparks. Another example is Chinese patent publication CN204266990U, which discloses an explosion-proof petroleum electromagnetic heater. The heater is constructed from a ferromagnetic steel tube core, a steel inner casing, and a steel outer casing, which are sequentially assembled from the inside out. These are connected to an explosion-proof junction box. The heater also includes insulated electromagnetic wires, conductive terminal blocks, and a thermal insulation layer. An electromagnetic induction winding coil layer composed of insulated electromagnetic wires is wound around the outer wall of the steel outer casing, which is covered with a thermal insulation layer. The electromagnetic induction winding coil layer is also covered with a protective layer. The ends of the insulated electromagnetic wires are connected to conductive terminal blocks with insulating gaskets within the explosion-proof junction box. However, due to its structural limitations, this product's structural design still has room for further improvement and innovation in applications such as oilfield extraction, transportation of oil and natural gas, and petrochemical production.

[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] To overcome the shortcomings of the existing technology and address the safety hazards of high-frequency electromagnetic radiation and magnetic flux leakage from high-frequency ionizing magnetic fields in existing oil and gas high-frequency electromagnetic heaters, which can cause magnetic flux leakage in the heater core tube and shell. The present utility model aims to provide a novel, high-efficiency, energy-saving, high-frequency explosion-proof reciprocating electromagnetic heater device that is novel and practical in structure, eliminates the hazards of high-frequency electromagnetic radiation and magnetic flux leakage from high-frequency ionizing magnetic fields, is safe and convenient to use, and is energy-efficient and power-saving in heating. The device is suitable for oil and gas explosion-proof applications such as oil fields and petrochemical industries.

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

[0006] An efficient and 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; the electromagnetic heater body is composed of a steel casing barrel main pipe, a first shell steel casing barrel connecting flange, a shell steel casing barrel inlet short section flange, a sand cleaning detection short section flange, a sewage pipe joint, an electromagnetic heater mounting and fixing seat and a barrel screen cover head; the bottom pipe opening of the shell steel casing barrel main pipe body is welded with a barrel head, a pipe The bottom of the body is welded with an electromagnetic heater mounting bracket, the top of the pipe body is welded with a first outer shell steel casing barrel connecting flange, and the upper pipe body of the outer shell steel casing barrel main pipe is welded with an outer shell steel casing 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. The first outer shell steel casing barrel connecting flange is connected to the electromagnetic induction electric heating component; the electromagnetic induction electric heating component is composed of an inner core tube of the electric heating component, a high-frequency electromagnetic induction winding coil, a high-temperature insulating layer, and an inner core tube steel sheath screen A high-frequency electromagnetic induction heat carrier electric heating component composed of a shielded pipe, a steel sheathed shielded pipe connecting flange, an inner core pipe outlet pipe short joint connecting flange, an inner core pipe guide plate, a steel sheathed shielded pipe guide plate, a temperature sensor, an inner core pipe outlet short joint pipe, an inner core pipe connecting elbow, an inner core pipe expansion short joint pipe, an inner core pipe corrugated expansion joint, an inner core pipe expansion short joint pipe flange and an inner core pipe head of an electric heating component. The steel sheathed shielded pipe connecting flange is sealed and connected to the first outer shell steel casing barrel connecting flange by a fixing screw, and the inner core pipe expansion short joint pipe flange is fixed The explosion-proof junction box is connected to the 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 terminal mounting plate flange, a high-frequency power terminal, a temperature sensor control power terminal, a high-frequency power wire inlet sealing gland, a temperature sensor control power wire sealing gland, an explosion-proof junction box sealed cavity short pipe, a second explosion-proof junction box sealed cavity connecting flange and an explosion-proof junction box sealing cover. The explosion-proof junction box terminal mounting plate flange is sealed and connected to the inner core tube expansion short joint 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 main pipe, and the steel sheath shielding tube connecting flange is fastened and sealed with the first outer shell steel casing 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 above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof, reciprocating electromagnetic heater has an inner core tube of the high-frequency electromagnetic induction heat carrier electric heating component welded with an inner core tube guide plate, and the outer wall of the tube body is respectively structured and sequentially equipped with a high-temperature insulation layer and a high-frequency electromagnetic induction winding coil wound around the insulation layer. 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 plurality of shielding layers. A guide plate is welded on the outer wall of the steel pipe, and the lower end of the inner core pipe of the electric heating component is welded to the bottom end of the outer steel sheath shielding pipe of the electric heating component. The inner core pipe head of the electric heating component is sealed and welded together. A temperature sensor is sandwiched between the inner core pipe of the electric heating component and the high-temperature insulating layer. The top pipe head of the inner core pipe of the electric heating component is welded with a bend short section of pipe consisting of an inner core pipe connecting elbow connected to the inner core pipe outlet short section. The inner core pipe outlet short section passes through the wall of the inner core pipe expansion short section and is welded to each other. The inner core tube outlet short tube is welded with the inner core tube outlet short tube connection flange at the other end of the pipe mouth, and the high-frequency electromagnetic induction heating and heat exchange and the closed oil flow outlet passage of the inner core tube of the electric heating component are formed. The steel sheath shielding pipe connection flange is welded to the top of the inner core tube steel sheath shielding pipe body, and the outer end face of the flange is welded to the pipe wall with a corrugated expansion joint of the inner core tube expansion short tube. The inner core tube expansion short tube is welded with the inner core tube expansion short tube flange and the short tube body. An inner core tube corrugated expansion joint, the inner core tube expansion nipple pipe flange and the explosion-proof junction box end column mounting plate flange of the explosion-proof junction box are fastened and sealed together with screws, the steel sheath shielding pipe connection flange is sealed and connected to the first outer shell steel casing cylinder connection flange by fixing screws, the inner core tube expansion nipple pipe flange and the explosion-proof junction box end column mounting plate flange are fastened and sealed together with screws, forming 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 shell steel casing barrel main pipe of the steel casing barrel main body of the steel casing barrel electromagnetic heater body is welded with a first outer shell steel casing barrel connecting flange at the upper end pipe mouth, and the lower end pipe mouth and the barrel head are sealed and welded to each other, and the electromagnetic heater installation fixing bracket is welded on the lower end pipe wall of the outer shell steel casing barrel, and the outer shell steel casing barrel inlet short section flange is welded on the lower end side of the first outer shell steel casing barrel connecting flange of the outer shell steel casing barrel main pipe, and the sand cleaning detection short section flange hole and the sewage pipe joint are respectively welded on the pipe wall of the outer shell steel casing barrel head to form a closed steel casing barrel electromagnetic heater body.

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

[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 corresponding to the first cylinder pipe, and a sealing gasket is installed between the two flanges and sealed with screws, and a ∪-shaped 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 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 cylindrical seat structure with an explosion-proof cavity inside the top opening box, the bottom of the explosion-proof junction box sealed cavity short pipe is welded with an explosion-proof junction box terminal column mounting plate flange, the upper end is welded with a second explosion-proof junction box sealed cavity connecting flange, the connection flange plate of the explosion-proof junction box terminal column mounting plate flange is equipped with a high-frequency power supply terminal column and a temperature sensor control power supply terminal column, and the explosion-proof junction box sealed cavity short pipe is welded on the pipe wall. It is connected to a high-frequency power supply wire incoming sealed gland and a temperature signal wire explosion-proof gland. The inner ends of the high-frequency power supply terminal block and the temperature sensor control power supply terminal block are respectively connected to the power transmission terminal of the high-frequency electromagnetic induction winding coil and the temperature sensor control terminal, and the outer ends are respectively connected to the high-frequency input power terminal and the temperature controller control power terminal. The second explosion-proof junction box sealed cavity connection flange and the explosion-proof cavity sealing cover are fastened and sealed with screws to form an explosion-proof junction box for explosion-proof wiring of the high-frequency power transmission and temperature control power transmission circuits.

[0013] The above-mentioned high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater has a guide plate welded on the outer wall of the inner core steel sheath shielding tube, which is either a spiral or semicircular partition-shaped inner core steel sheath shielding tube.

[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 the tube structure at the cylinder head, and the electromagnetic heater ⊥-shaped conical vertical pipe seat and the electromagnetic heater leg-type seat are welded to form a vertical structure high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater, or the outer shell steel sleeve main pipe is welded with 2-4 electromagnetic heater saddle-type seats 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 seat is composed of a circular vertical connecting pipe section with the top connected to the outer shell steel sleeve main pipe body and the bottom connected to the disc seat body; the electromagnetic heater leg-type seat is composed of 3-4 evenly distributed channel steels or angle steel legs connected to the top of the outer shell steel sleeve main pipe body and the bottom connected to the disc seat body.

[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, groove-shaped, and angular profile overhead composite insulating layers.

[0017] When the utility model is used, according to design requirements and actual needs, the installation structure of 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 adopted, and is equipped on the oil pipeline of the corresponding oil wellhead oil and gas tree mechanism and the oil storage gas storage tank and other equipment devices of the oil field gathering and transmission oil and gas pipeline or in the process flow of the petrochemical production device, the high-frequency power supply terminal block and the temperature sensor control power supply terminal block are respectively connected to the high-frequency input power supply terminal block and the temperature controller control power supply terminal block, and the intelligent temperature controller of the device is used to perform constant temperature control of the heating operation and automatically adjust the output of the heating power supply frequency of 8-35Khz and the power output of 30-100% of the rated high-frequency current to perform high-frequency electromagnetic heating operation operations in oil and gas extraction and transportation and petrochemical production.

[0018] Since the design of the present invention adopts the above-mentioned 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 them into magnetothermal energy, that is, a steel sheath shielding tube for sealing and welding ferromagnetic ionizing radiation and stray magnetic field is sheathed on the outside of the high-frequency electromagnetic 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 circular effect heat to be released, that is, the hazards of ionizing radiation and stray magnetic field are 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 hazards of high-frequency electromagnetic radiation and the inductive 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 the ground are charged with electrostatic voltage, which effectively solves the safety hazard problem of the existing oil and gas high-frequency electromagnetic heaters caused by the hazards of high-frequency electromagnetic radiation and the leakage of high-frequency ionizing 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, Christmas trees, oil gathering pipelines, gas pipelines, oil media in oil and gas storage tanks, and petrochemical production equipment.

[0019] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying 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 is a brief introduction to 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 paying any creative work.

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

[0022] Figure 2 yes Figure 1 The cylinder head in the embodiment is an enlarged structural 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 cylindrical head in the embodiment is welded on the lower end pipe opening of the outer shell steel sleeve main pipe, and is composed of a first cylindrical pipe matching flange and a second cylindrical pipe matching blind flange corresponding thereto, and a sealing gasket is installed between the two flanges and is sealed and connected with screws. The bottom of the second cylindrical pipe matching blind flange is also connected to a ∪-shaped cylindrical screen cover head; the sewage pipe joint (104) is connected to the bottom of the ∪-shaped cylindrical screen cover head.

[0024] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure of the main body of the vertical structure steel sleeve tube type electromagnetic heater of the embodiment electromagnetic heater support leg type frame.

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

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

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

[0028] The reference numerals in the accompanying drawings are: 1-steel casing tube electromagnetic heater body; 101-first outer shell steel casing cylinder connection flange; 102-outer shell steel casing cylinder inlet short section flange; 103-sand cleaning detection short section flange; 104 sewage pipe joint; 105-electromagnetic heater ⊥-shaped conical vertical pipe support; 1051-electromagnetic heater support leg type support; 106-cylinder screen cover head; 107-outer shell steel casing main pipe; 108-first cylinder matching sealing flange; 1081-second cylinder matching sealing blind plate flange; 1082-elliptical head; 109-electromagnetic heater saddle type support; 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; 206 -Electric heating component inner tube outlet connection flange; 207-Inner core tube guide plate; 208-Steel sheath shield tube guide plate; 209-Temperature sensor; 210-Inner core tube outlet short section pipe; 211-Inner core tube connecting elbow; 212-Inner core tube expansion short section pipe; 213-Inner core tube corrugated expansion joint; 214-Inner core tube expansion short section pipe connection flange; 215-Electric heating component inner core tube elliptical head; 3-Sealed explosion-proof heater electrical component junction box; 301-Explosion-proof junction box terminal mounting plate flange; 302-High-frequency power supply terminal; 303-Temperature sensor control power supply terminal; 304-High-frequency power supply wire inlet sealing gland; 305-Temperature sensor control power supply wire sealing gland; 306-Explosion-proof junction box sealed cavity short section pipe; 307-Second explosion-proof junction box sealed cavity connection flange; 308-Explosion-proof junction box sealing cover. 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 embodiments described 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 making creative efforts 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., indicating the orientation or position relationship, are based on the orientation or position relationship 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 5 As shown, this embodiment includes: an electromagnetic heater body, an electromagnetic induction heating component, and an explosion-proof junction box. The electromagnetic heater body is composed of a steel sleeve barrel main pipe 107, a first shell steel sleeve barrel connecting flange 101, a shell steel sleeve barrel inlet short section flange 102, a sand cleaning detection short section flange 103, a sewage pipe joint 104 and a barrel head connected to form a steel sleeve barrel type electromagnetic heater body 1; the bottom pipe opening of the shell steel sleeve main pipe 107 is welded with a barrel head, and the top pipe opening of the pipe body is welded with a first shell steel sleeve barrel connecting flange 101, and is connected to the steel sleeve barrel main pipe 107. The upper tube body of the sleeve-type electromagnetic heater body 1 is welded with an outer shell steel sleeve barrel inlet short section flange 102, and the lower tube body is respectively welded with a sand cleaning detection short section flange 103 and a sewage pipe joint 104. The first outer shell steel sleeve barrel connection flange 101 is connected to the electromagnetic induction electric heating component; the electromagnetic induction electric heating component is composed of an inner core tube 201 of the electric heating component, 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 connection flange 205, an inner core tube outlet pipe short section connection flange 206, an inner The high-frequency electromagnetic induction heat carrier electric heating component 2 is composed of a core tube guide plate 207, a steel sheath shielding tube guide plate 208, a temperature sensor 209, an inner core tube outlet short tube 210, an inner core tube connecting elbow 211, an inner core tube expansion short tube 212, an inner core tube corrugated expansion joint 213, an inner core tube expansion short tube flange 214 and an inner core tube head of the electric heating component. The steel sheath shielding tube connecting flange 205 is sealed and connected to the first outer shell steel casing cylinder connecting flange 101 by a fixing screw, and the inner core tube expansion short tube flange 214 is fixedly connected to the explosion-proof junction box; the explosion-proof The junction box is a sealed explosion-proof heater electrical component junction box 3 composed of an explosion-proof junction box terminal mounting plate flange 301, a high-frequency power supply terminal 302, a temperature sensor control power supply terminal 303, a high-frequency power supply wire inlet sealing gland 304, a temperature sensor control power supply wire sealing gland 305, an explosion-proof junction box sealed cavity short pipe 306, a second explosion-proof junction box sealed cavity connecting flange 307 and an explosion-proof junction box sealing cover 308. The explosion-proof junction box terminal mounting plate flange 301 is sealed and connected to the inner core tube expansion short joint pipe flange 214 by screws.

[0032] For example, see the attached Figure 1-Figure 2 、 Figure 4 In this embodiment, 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 cylindrical tube cavity of the outer shell steel sleeve body main pipe 107 of the steel sleeve cylindrical electromagnetic heater body 1. The steel sheath shielding tube connecting flange 205 is fastened and sealed with the first outer shell steel sleeve 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 4 In the high-frequency electromagnetic induction heat carrier electric heating component 2 of this embodiment, an inner core tube 201 of the high-frequency electromagnetic induction heat carrier electric heating component is welded with an inner core tube guide plate 207. A high-temperature insulating layer 203 and a high-frequency electromagnetic induction winding coil 202 are respectively arranged and sequentially installed around the outer wall of the tube body. 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. A guide plate 208 is welded to the outer 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, and the temperature sensor 209 is clamped 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 the wall of the inner core tube expansion short section 212 and is welded to each other for sealing. The inner core tube outlet short section 210 is welded with the inner core tube outlet short section connecting flange 206, which constitutes the high-frequency electromagnetic induction heating and heat exchange of the inner core tube 201 of the electric heating component and the closed oil flow outlet passage. The steel sheath shielding tube connecting flange 205 is welded to the top of the inner core tube steel sheath shielding tube 204, and the outer end face of the flange is welded to the pipe wall with the inner core tube expansion short section 212 having a corrugated expansion joint. The inner core tube expansion short section 212 is welded with the inner core tube expansion short section flange 214 on the top of the pipe body and the short section pipe body. The inner core tube corrugated expansion joint 213, 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 with screws, the steel sheath shielding tube connection flange 205 is sealed and connected to the first outer shell steel casing cylinder 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 fastened and sealed together with screws, and the combination forms a high-frequency electromagnetic induction heat carrier electric heating component 2 with high-frequency inductive leakage magnetic radiation shielding absorption.

[0034] For details, see the attached Figure 1-Figure 2In this embodiment, the upper end pipe mouth of the outer steel casing tube type electromagnetic heater main body 107 is welded with a sewage pipe joint connected to the first outer steel casing tube connection flange 101, and the lower end pipe mouth is welded to the tube head in a sealing manner. The lower end of the first outer steel casing tube connection flange 101 of the outer steel casing tube main body 107 is welded with an outer steel casing tube inlet short section flange 102, and the sand cleaning detection short section flange hole 103 and the sewage pipe joint 104 are respectively welded on the pipe wall of the outer steel casing tube connection tube head to form a closed steel casing tube type electromagnetic heater main body 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 pipe opening of the outer shell steel sleeve main pipe 107, and a sealing gasket is installed between the two flanges and sealed with screws. A ∪-shaped head type cylinder screen cover head 1082 is also 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 Figure 1 、 Figure 4 The sealed explosion-proof heater electrical component junction box 3 of this embodiment is a cylindrical seat structure with an explosion-proof cavity inside the top opening box. The bottom of the explosion-proof junction box sealed cavity short pipe 306 is welded with an explosion-proof junction box terminal mounting plate flange 301, and the upper end is welded with a second explosion-proof junction box sealed cavity connecting flange 307. The terminal mounting plate of the connecting flange plate of the explosion-proof junction box terminal mounting plate flange 301 is equipped with a high-frequency power supply terminal 302 and a temperature sensor control power supply terminal 303. The wall of the explosion-proof junction box sealed cavity short pipe 306 is respectively welded with a high-frequency power supply wire inlet sealed The sealing gland 304 and the temperature sensor control power line sealing gland 305, the high-frequency power terminal 302 and the temperature sensor control power terminal 303 have their inner ends connected to the power transmission terminal and the temperature sensor control terminal of the high-frequency electromagnetic induction winding coil 202 respectively, and their outer ends are respectively connected to the high-frequency input power terminal and the temperature controller control power terminal. The second explosion-proof junction box sealed cavity connection 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 the 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 wall of the inner core steel sheath shielding tube 204 is a spiral inner core steel sheath shielding tube.

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

[0039] Preferably, see the attached Figure 1 、 Figure 3 In this embodiment, the outer shell steel sleeve main pipe 107 is welded with the pipe 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 joint connected to the outer shell steel sleeve main pipe 107 at the top and a disc seat at the bottom.

[0040] For further preference, see the attached Figure 4 In this embodiment, the outer shell steel sleeve main pipe 107 is welded with the pipe structure at the cylinder head and welded with the electromagnetic heater leg-type seat frame 1051 to form a vertical structure, high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater. The electromagnetic heater leg-type seat frame 1051 is composed of 3 evenly distributed channel steel legs connected to the outer 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, which is composed of three electromagnetic heater saddle-type brackets 109 welded on the pipe side wall. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater is composed of these brackets.

[0042] For example, see the attached Figure 1 The high-temperature insulation layer 203 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 In this embodiment, the cylinder head is a cylinder screen cover head 106 with a screen cover 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 structure head includes any one of the cylinder screen cover heads of the ∪-shaped head type and the п-shaped head type; the cylinder screen cover head 106 in this embodiment is a ∪-shaped head type cylinder screen cover head.

[0044] The above is only one embodiment. Other technical features and technical solutions derived from adding components, equivalent replacements and local improvements by technicians in this field without creative work are all within the scope of protection of this utility model patent.

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 type electromagnetic heater body (1) connected by an outer shell steel sleeve main pipe (107), a first outer shell steel sleeve cylinder connecting flange (101), an outer shell steel sleeve cylinder inlet short section flange (102), a sand cleaning detection short section flange (103), a sewage pipe joint (104) and a cylinder head; the outer shell steel sleeve main pipe (107) is welded with a cylinder head at the bottom pipe mouth, and the first outer shell steel sleeve cylinder connecting flange (101) is welded with the top pipe mouth of the pipe body, and the outer shell steel sleeve cylinder inlet short section flange (102) is welded on the upper pipe body of the outer shell steel sleeve main pipe (107), and the sand cleaning detection short section flange (103) and the sewage pipe joint (104) are respectively welded on the lower pipe body; the first outer shell steel sleeve cylinder connecting flange (101) is connected to the 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 short joint 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 short joint tube (210), an inner core tube connecting elbow (211), an inner core tube expansion short joint tube (212), an inner core tube corrugated expansion joint (213), an inner core tube expansion short joint tube flange (214) and an electric heating component inner core tube sealing head, wherein the steel sheath shielding tube connecting flange (205) is sealed and connected to a first outer shell steel sheath tube body connecting flange (101) by fixing screws, and the inner core tube expansion short joint tube flange (214) is fixedly connected to an explosion-proof junction box; 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 wire sealing gland (305), an explosion-proof junction box sealed cavity short pipe (306), a second 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 the inner core tube expansion short joint pipe flange (214) by screw sealing.

2. A 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 barrel tube cavity of the outer steel sleeve main tube (107) of the steel sleeve barrel type electromagnetic heater body (1), and the steel sheath shielding tube connecting flange (205) is fastened and sealed with the first outer steel sleeve barrel 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 an inner core tube (201) welded with an inner core tube guide plate (207) in the tube body cavity structure, and a high-temperature insulation layer (203) and a high-frequency electromagnetic induction winding coil (202) wound around the outer wall of the tube body are respectively structured and sequentially installed. The tube body of the high-frequency electromagnetic induction heat carrier electric heating component inner core tube (201) is coaxially inserted into the tube cavity of the inner core tube steel sheath shielding tube (204), and a guide plate (208) is welded on the outer 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 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, and the inner core tube head of the electric heating component is welded to each other and sealed into one. A temperature sensor (209) is sandwiched between the inner core tube (201) of the electric heating component and the high-temperature insulation layer (203). The top tube head of the inner core tube (201) of the electric heating component is welded to a bent short tube section composed of an inner core tube connecting elbow (211) connected to an inner core tube outlet short tube (210). The inner core tube outlet short tube (210) passes through the tube wall of the inner core tube expansion short tube (212) and is welded to each other and sealed. The inner core tube outlet short joint pipe (210) is welded to the other end of the pipe mouth with the inner core tube outlet short joint connecting flange (206), and the high-frequency electromagnetic induction heating and heat exchange and the sealed oil flow outlet passage of the inner core tube (201) of the electric heating component are formed. The steel sheath shielding pipe connecting flange (205) is welded to the top of the inner core tube steel sheath shielding pipe (204) pipe body, and the outer end face of the flange is welded to the pipe wall with the inner core tube expansion short joint pipe (212) having a corrugated expansion joint. The inner core tube expansion short joint pipe (212) is a pipe body top portion welded with the inner core tube expansion short joint flange (214) and the short joint pipe body is welded with the inner core tube expansion short joint pipe flange (214). The core tube corrugated expansion joint (213) is provided. 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 to form a whole. The steel sheath shielding pipe connecting flange (205) is sealed and connected to the first outer shell steel casing barrel 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 to form a whole. The high-frequency electromagnetic induction heat carrier electric heating component (2) with high-frequency inductive leakage magnetic radiation shielding absorption is formed.

4. The high-efficiency, energy-saving, high-frequency, explosion-proof reciprocating electromagnetic heater according to claim 1, characterized in that: The upper end pipe opening of the outer shell steel sleeve main pipe (107) of the steel sleeve tube type electromagnetic heater main body (1) is welded with a first outer shell steel sleeve tube connection flange (101), and the lower end pipe opening is welded to the tube head in a sealing manner. An outer shell steel sleeve tube inlet short section flange (102) is welded to the lower end of the end side of the first outer shell steel sleeve tube connection flange (101) of the outer shell steel sleeve main pipe (107), and a sand cleaning detection short section flange hole (103) and a sewage pipe joint (104) are respectively welded on the pipe wall of the outer shell steel sleeve tube connection tube head, thereby forming a closed steel sleeve tube type electromagnetic heater main body (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, such as screen cover, spherical or elliptical.

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 main pipe (107), and a sealing gasket is installed between the two flanges and is fastened and sealed with screws. The bottom of the second cylinder pipe matching blind flange (1081) is also connected to a ∪-shaped cylinder screen cover head (1082); the sewage pipe joint (104) is connected to the bottom of the ∪-shaped 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 top opening box. The bottom of the explosion-proof junction box sealed cavity short pipe (306) is welded with an explosion-proof junction box terminal column mounting plate flange (301), and the upper end is welded with a second 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 control power supply terminal column (303). The wall of the explosion-proof junction box sealed cavity short pipe (306) is respectively welded with a high-frequency power supply wire inlet sealing flange (307). The gland (304) and the temperature sensor control power line sealing gland (305), the high-frequency power terminal block (302) and the temperature sensor control power terminal block (303) have their inner ends respectively connected to the power transmission terminal of the high-frequency electromagnetic induction winding coil (202) and the temperature sensor control terminal, and their outer ends respectively connected to the high-frequency input power terminal and the temperature controller control power terminal, the second explosion-proof junction box sealed cavity connecting flange (307) and the explosion-proof cavity sealing cover (308) are fastened and sealed to each other with screws, and the resulting explosion-proof junction box is used for explosion-proof wiring of the high-frequency power transmission and temperature control power 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 and 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 cylinder head, and the pipe structure is welded with any one of an electromagnetic heater ⊥-shaped conical vertical pipe frame (105) and an electromagnetic heater leg-type frame (1051), forming 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, forming 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 connecting pipe section 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 steels 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 insulation layer (203) is a solid high-temperature insulation material layer with a height of 2 to 5 mm, or any high-temperature insulation layer composed of a non-magnetic metal tubular, slot-shaped, or angular profile suspended above a heat-insulating composite layer applied on top.

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