CN110701790A

CN110701790A - Electromagnetic heating system for whitening

Info

Publication number: CN110701790A
Application number: CN201910971084.6A
Authority: CN
Inventors: 师圆生; 李志荣; 任东发; 曾福厚; 吴柒兵; 杨林鲜; 易友元
Original assignee: Shandong Baolan Environmental Protection Engineering Co Ltd
Current assignee: Shandong Baolan Environmental Protection Engineering Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-01-17

Abstract

The invention relates to the technical field of heating devices, in particular to an electromagnetic heating system for whitening, which comprises a base, wherein a pump machine chamber, an electromagnetic heating chamber and a main control cabinet are arranged on the base, a circulating pump is arranged in the pump machine chamber, a circulating pump outlet pipe is arranged at the outlet end of the circulating pump, a protective cover is arranged in the electromagnetic heating chamber and covers the periphery of a heating pipe, the outlet end of the heating pipe is fixedly connected with an oil outlet pipe, the circulating pump outlet pipe extends into the electromagnetic heating chamber and then is fixedly connected with the inlet end of the heating pipe, a heat homogenizing pipe, a heat insulating layer and an induction coil are sequentially sleeved on the periphery of. The beneficial effects are that: according to the invention, the superconducting liquid filled in the heat homogenizing pipe enables the heat distribution on the heating pipe to be more uniform, avoids oxidation of the heat conducting oil due to nonuniform heating, avoids decomposition, deterioration and scaling of the heating pipe, and has the advantages of simple structure, novel structure, easiness in assembly, safety and reliability.

Description

Electromagnetic heating system for whitening

Technical Field

The invention relates to the technical field of heating devices, in particular to an electromagnetic heating system for whitening.

Background

At present, most of the smoke of domestic coal-fired power plants or other chemical industries is subjected to wet desulphurization before being discharged, the temperature is reduced to 45-55 ℃, the smoke is usually saturated wet smoke at the moment, the smoke contains a large amount of water vapor, and the water vapor contains more soluble salts, SO3, gel dust, micro dust and the like (which are main components of haze). If the flue gas is directly discharged from the chimney and enters the ambient air with lower temperature, because the saturation humidity of the ambient air is lower, water vapor in the flue gas can be condensed to form wet smoke plume in the process of reducing the temperature of the flue gas, so that the atmospheric air is not only visually but also substantially polluted. The process of removing harmful components in the smoke and reducing the emission of nitrogen oxides, sulfides, various smoke particles, aerosol and ultrafine crystal salt particles is carried out.

In the prior art, the whitening technology mainly comprises a flue gas heating technology, a flue gas condensing and reheating technology and the like, a heating system is required to heat flue gas in the flue gas heating technology and the flue gas condensing and reheating technology, the existing heating system mainly comprises an electromagnetic heat conduction oil furnace and an electric heating heat conduction oil furnace, but the electric heating heat conduction oil furnace has the defects of less heat absorption, overlong preheating time and limited use. The electromagnetic heat conduction oil furnace can achieve the purpose of rapid heating by the fact that the induction coil is a heating element to generate eddy current, and the heating element is isolated from the main circuit on an electric appliance, so that the phenomenon of point falling caused by insulation damage of an electric water heater is avoided, and the safety is greatly improved.

The heat conducting oil of the heat conducting oil furnace of the electromagnetic heat conducting oil furnace is oil used for conducting heat under the continuous high-temperature condition, the using temperature is generally between 160 ℃ and 300 ℃, and in order to adapt to the special condition, the heat conducting oil must select a medium with good thermal stability. After long-term use, the heat conduction oil can be decomposed and deteriorated, scales are formed on the surface of the system, the heat transfer efficiency is reduced, and potential safety hazards are caused to the operation of a heat medium furnace and the burying of oil transportation production.

Disclosure of Invention

The present invention is directed to an electromagnetic heating system for whitening to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a take off white electromagnetic heating system that uses, includes the base, be equipped with pump machine room, electromagnetic heating chamber and master control cabinet on the base, the pump machine indoor has the circulating pump, the entrance point of circulating pump is equipped with the circulating pump and advances the pipe, and the exit end of circulating pump is equipped with the circulating pump outlet pipe, the electromagnetic heating chamber embeds there is the protection casing, the protection casing cover is located the heating pipe periphery, the exit end fixed connection oil pipe of heating pipe, the circulating pump outlet pipe stretch into behind the electromagnetic heating chamber with the entrance point fixed connection of heating pipe, the heating pipe periphery is overlapped from inside to outside in proper order and is equipped with even heat pipe, heat preservation, insulating layer and induction coil, even heat pipe intu.

Preferably, the upper surface of the base is connected with a bottom shell bolt of the pump room, the top shell of the pump room is connected with the bottom shell bolt of the electromagnetic heating chamber, a through hole is formed in the front side of the base, a bottom foot piece is arranged in the through hole and welded with the base, and a bolt hole is formed in the bottom foot piece.

Preferably, the front side wall of the pump chamber is in bolted connection with two support frames, the two support frames are in bolted connection with a bottom shell of the main control cabinet, the front side wall of the electromagnetic heating chamber is in bolted connection with two support arms through angle steel, and the two support arms are in bolted connection with the side wall of the main control cabinet.

Preferably, the inlet pipe of the circulating pump is provided with a filtering unit, the filtering unit is a Y-shaped filter, the mesh number of a filtering basket in the filtering unit is 350-450 meshes, the inlet pipe of the circulating pump is connected with the inlet end of the filtering unit through a flange, and the outlet end of the filtering unit is connected with the inlet end of the circulating pump through a flange.

Preferably, pressure probes are inserted into one side of the circulating pump outlet pipe close to the heating pipe and one side of the oil outlet pipe close to the heating pipe, and the pressure probes are high-temperature pressure sensors.

Preferably, even heat pipe and induction coil all are equipped with a plurality of, and its number is the same, the one-to-one, and the even heat pipe of a plurality of is equidistant range on the heating pipe, is equipped with hose and temperature probe between the adjacent even heat pipe, the both ends of hose all are equipped with detains the copper nut, even heat pipe fixed connection intubate, detain copper nut threaded connection intubate.

Preferably, a plurality of the induction coils are arranged at equal intervals, an electromagnetic controller is arranged in the main control cabinet, the input end of the electromagnetic controller is electrically connected with industrial electricity, and the output end of the electromagnetic controller is electrically connected with the output ends of the induction coils.

Preferably, the heat preservation layer is woven into the tubular structure by industry asbestos braided rope, the insulating layer is formed by the winding of aerogel felt, and the thickness ratio of heat preservation layer and insulating layer is 1: 1.5.

compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the superconducting liquid filled in the heat homogenizing pipe enables the heat distribution on the heating pipe to be more uniform, avoids oxidation of heat-conducting oil due to nonuniform heating, avoids decomposition, deterioration and scaling of the heating pipe, and has the advantages of simple structure, novel structure, easiness in assembly, safety and reliability;

2. according to the invention, the insertion pipe is connected by buckling the copper nut threads, so that the hose is communicated with the adjacent heat homogenizing pipes, the superconducting liquid in the heat homogenizing pipes can conduct heat in a convection manner, the heating pipes are prevented from generating local high temperature, and the superconducting liquid is easily filled into the heat pipes through the hose, so that the heat homogenizing pipes are simple and convenient;

3. the four heat homogenizing pipes and the four induction coils are arranged and correspond to each other one by one, namely the heating pipe is divided into four parts by the heat homogenizing pipes and the induction coils, the temperature of the surface of each section of the heating pipe can be accurately measured through the temperature probe, real-time monitoring is realized, and the device is safe and reliable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the pump chamber and the electromagnetic heating chamber of the present invention;

FIG. 3 is a schematic structural view of a heating pipe, a heat homogenizing pipe, a heat insulating layer and an induction coil according to the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

In the figure: the device comprises a base 1, a pump chamber 2, an electromagnetic heating chamber 3, a main control box 4, a circulating pump 5, a circulating pump inlet pipe 6, a filtering unit 7, a circulating pump outlet pipe 8, a protective cover 9, a heating pipe 10, an oil outlet pipe 11, a uniform heat pipe 12, a heat insulating layer 13, a heat insulating layer 14, an induction coil 15, a hose 16, a copper nut 17, an insertion pipe 18, a temperature probe 19, a pressure probe 20, a foot bottom sheet 21, a support frame 22 and a support arm 23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: an electromagnetic heating system for whitening comprises a base 1, wherein a pump chamber 2, an electromagnetic heating chamber 3 and a main control cabinet 4 are arranged on the base 1. The upper surface of the base 1 is connected with a bottom shell bolt of the pump room 2, the top shell of the pump room 2 is connected with a bottom shell bolt of the electromagnetic heating chamber 3, a through hole is formed in the front side of the base 1, a bottom foot piece 21 is arranged in the through hole, the bottom foot piece 21 is welded with the base, and a bolt hole is formed in the bottom foot piece 21. The base 1 can be fixed on the ground through the bottom foot piece 21, and the device is stably placed. Two support frames 22 are connected with the front side wall of the pump chamber 2 through bolts, the two support frames 22 are connected with a bottom shell bolt of the main control cabinet 4, the front side wall of the electromagnetic heating chamber 3 is connected with two support arms 23 through angle steel bolts, and the two support arms 23 are connected with a side wall bolt of the main control cabinet 4. The main control cabinet 4 is positioned right in front of the pump room 2 and the electromagnetic heating chamber 3, and is convenient for personnel to control and overhaul the main control cabinet 4.

Pump room 2 embeds there is circulating pump 5, circulating pump 5 passes through the bolt fastening on pump room 2's drain pan, circulating pump 5's entrance point is equipped with the circulating pump and advances tub 6, the circulating pump advances to be equipped with filter unit 7 on managing 6, filter unit 7 is basket type Y type filter, it is mainly by the takeover, be responsible for, filter basket, the flange, flange lid and fastener etc. constitute, after the conduction oil got into filter basket through being responsible for, solid impurity particle was blockked in filter basket, and clean conduction oil is through filter basket, and discharge by filter unit 7's exit end. The mesh number of the filter basket in the filter unit 7 is 400 meshes, the inlet pipe 6 of the circulating pump is connected with the inlet end of the filter unit 7 through a flange, and the outlet end of the filter unit 7 is connected with the inlet end of the circulating pump 5 through a flange.

An outlet end flange of the circulating pump 5 is connected with an outlet pipe 8 of the circulating pump, a protective cover 9 is arranged in the electromagnetic heating chamber 3, and a bottom shell of the protective cover 9 is fixedly connected with a bottom shell of the electromagnetic heating chamber 3. The protection casing 9 covers the periphery of heating pipe 10, the exit end fixed connection oil pipe 11 of heating pipe 10, the circulating pump outlet pipe 8 stretch into electromagnetic heating chamber 3 after with the entrance point fixed connection of heating pipe 10, the cover is equipped with even heat pipe 12 from inside to outside in proper order in heating pipe 10 periphery, heat preservation 13, insulating layer 14 and induction coil 15, even heat pipe 12 intussuseption is filled with superconducting liquid, superconducting liquid adopts bromine lithium superconducting liquid, can be so that heat distribution is more even on the heating pipe 10, avoid the conduction oil because of being heated inhomogeneous oxidation, avoid heating pipe 10 to decompose, it is rotten, the scale deposit.

The four uniform heat pipes 12 and the induction coils 15 are respectively provided and are in one-to-one correspondence, the four uniform heat pipes 12 are arranged on the heating pipe 10 at equal intervals, a hose 16 and a temperature probe 19 are arranged between the adjacent uniform heat pipes 12, and the temperature probe 19 is a silicon-based infrared sensor and is fixed on the surface of the heating pipe 10 in a contact measurement mode. When a large number of thermocouples are stacked on a silicon substrate on the bottom layer of the temperature probe 19, the high-temperature contact and the low-temperature contact on the bottom layer isolate the heat of the high-temperature contact and the low-temperature contact through an extremely thin film, the incident radioactive rays are converted into heat energy by the black absorption layer on the high-temperature contact, the output voltage is proportional to the radioactive rays according to the thermoelectric effect, and therefore the temperature of the surface of each section of heating pipe 10 can be accurately measured, and real-time monitoring is achieved.

As shown in fig. 4, the two ends of the flexible pipe 16 are respectively provided with a copper-fastening nut 17, the copper-fastening nuts 17 are rotatably matched with the main body of the flexible pipe 16, the heat equalizing pipe 12 is fixedly connected with the insertion pipe 18, the insertion pipe 18 is connected through the copper-fastening nuts 17 in a threaded manner, so that the flexible pipe 16 is communicated with the heat equalizing pipe 12, the heat conduction of the superconducting liquid in the adjacent heat equalizing pipe 12 can be realized in a convection manner, the heating pipe 10 is prevented from generating local high temperature, and the superconducting liquid is easily filled into the heat pipe 12 through the.

The four induction coils 15 are arranged at equal intervals along the heat insulation layer 14, an electromagnetic controller is arranged in the main control cabinet 4, the input end of the electromagnetic controller is electrically connected with industrial electricity, and the output end of the electromagnetic controller is electrically connected with the output end of the induction coil 15. The electromagnetic controller converts the industrial three-phase alternating current into direct current, and then converts the direct current into high-frequency low-voltage large current, the high-frequency high-voltage current which changes at high speed flows through the induction coil 15 to generate an alternating magnetic field which changes at high speed, the surface of the heating pipe 10 is provided with cutting alternating magnetic lines, and alternating current (namely eddy current) is generated at the metal part at the bottom of the container, so that the heating pipe 10 is heated. The four induction coils 15 are connected in parallel with the electromagnetic controller, and the high-frequency high-voltage current flowing into the induction coils 15 is changed by controlling the electromagnetic controller, so that the four induction coils 15 generate gradient heating on the heating pipe 10, and the heat conducting oil is prevented from being rapidly heated in a short time.

The side of the circulating pump outlet pipe 8 close to the heating pipe 10 and the side of the oil outlet pipe 11 close to the heating pipe 10 are inserted with pressure probes 20, each pressure probe 20 is a high-temperature pressure sensor, each high-temperature pressure sensor is composed of a silicon diaphragm, a substrate, a lower electrode and an insulating layer, when the pressure of heat conduction oil directly acts on the diaphragm of the sensor, the diaphragm generates micro displacement in direct proportion to the pressure of a medium, the resistance of the sensor is changed, the change is detected by an electronic circuit, and a standard signal corresponding to the pressure is converted and output, so that the pressure of an inlet and an outlet of the heating pipe 10 is accurately measured, real-time monitoring is realized, and the damage of the heating pipe 10 caused by overlarge pressure is avoided.

The heat preservation layer 13 is woven into the tubular structure by industry asbestos braided rope, and the insulating layer 14 is formed by the winding of aerogel felt, and the thickness ratio of heat preservation layer 13 and insulating layer 14 is 1: 1.5. the shield 9 is provided with filler blocks filled with the heat insulating layer 14 and the induction coil 15, and the filler blocks prevent the heat insulating layer 14 and the induction coil 15 from contacting the shield 9.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take off white and use electromagnetic heating system, includes base (1), be equipped with pump room (2), electromagnetic heating room (3) and master control cabinet (4) on base (1), its characterized in that: pump room (2) embeds there is circulating pump (5), the entrance point of circulating pump (5) is equipped with the circulating pump and advances pipe (6), and the exit end of circulating pump (5) is equipped with circulating pump outlet pipe (8), electromagnetism heating chamber (3) embeds there is protection casing (9), heating pipe (10) periphery is located to protection casing (9) cover, the exit end fixed connection of heating pipe (10) goes out oil pipe (11), electromagnetism heating chamber (3) back and the entrance point fixed connection of heating pipe (10) are stretched into in circulating pump outlet pipe (8), heating pipe (10) periphery is overlapped from inside to outside in proper order and is equipped with even heat pipe (12), heat preservation (13), insulating layer (14) and induction coil (15), even heat pipe (12) intussuseption is filled with superconducting fluid.

2. The electromagnetic heating system for whitening as claimed in claim 1, wherein: the improved electromagnetic heating device is characterized in that the upper surface of the base (1) is connected with a bottom shell bolt of the pump machine room (2), a top shell of the pump machine room (2) is connected with a bottom shell bolt of the electromagnetic heating chamber (3), a through hole is formed in the front side of the base (1), a bottom foot piece (21) is arranged in the through hole, the bottom foot piece (21) is welded with the base, and a bolt hole is formed in the bottom foot piece (21).

3. The electromagnetic heating system for whitening as claimed in claim 1, wherein: two support frames (22) of preceding lateral wall bolted connection of pump machine room (2), two support frame (22) and the drain pan bolted connection of master control cabinet (4), the preceding lateral wall of electromagnetism heating chamber (3) passes through two support arms (23) of angle steel bolted connection, two the lateral wall bolted connection of support arm (23) and master control cabinet (4).

4. The electromagnetic heating system for whitening as claimed in claim 1, wherein: the circulating pump inlet pipe (6) is provided with a filtering unit (7), the filtering unit (7) is a Y-shaped filter, the mesh number of a filtering basket in the filtering unit (7) is 350-450 meshes, the circulating pump inlet pipe (6) is connected with the inlet end of the filtering unit (7) in a flange mode, and the outlet end of the filtering unit (7) is connected with the inlet end of the circulating pump (5) in a flange mode.

5. The electromagnetic heating system for whitening as claimed in claim 1, wherein: and pressure probes (20) are inserted into one side of the circulating pump outlet pipe (8) close to the heating pipe (10) and one side of the oil outlet pipe (11) close to the heating pipe (10), and the pressure probes (20) are high-temperature pressure sensors.

6. The electromagnetic heating system for whitening as claimed in claim 1, wherein: even heat pipe (12) and induction coil (15) all are equipped with a plurality of, and its number is the same, the one-to-one, and even heat pipe (12) of a plurality of are equidistant range on heating pipe (10), are equipped with hose (16) and temperature probe (19) between adjacent even heat pipe (12), the both ends of hose (16) all are equipped with detains copper nut (17), even heat pipe (12) fixed connection intubate (18), detain copper nut (17) threaded connection intubate (18).

7. The electromagnetic heating system for whitening as claimed in claim 6, wherein: the induction coils (15) are arranged at equal intervals, an electromagnetic controller is arranged in the main control cabinet (4), the input end of the electromagnetic controller is electrically connected with industrial electricity, and the output end of the electromagnetic controller is electrically connected with the output ends of the induction coils (15).

8. The electromagnetic heating system for whitening as claimed in claim 1, wherein: the heat preservation layer (13) is woven into a circular tube-shaped structure by an industrial asbestos braided rope, the heat insulation layer (14) is formed by winding aerogel felts, and the thickness ratio of the heat preservation layer (13) to the heat insulation layer (14) is 1: 1.5.