CN208519745U - Mid-frequency induction heating boiler - Google Patents

Abstract

The utility model discloses a kind of mid-frequency induction heating boilers in boiler technology field, shell including horizontal setting, upper shell and lower shell are equipped in shell, the both ends of upper shell and lower shell are equipped with end socket, connecting tube is equipped between upper shell and lower shell, lower shell bottom is equipped with pedestal, and pedestal is fixed on ground, away from being equipped with the first intermediate frequency induction heating device at 50~100mm of lower shell outer wall.The mid-frequency induction heating boiler of the utility model can be widely applied to steam boiler, vacuum heat-exchanging hot water boiler, normal-pressure hot-water boiler, without pressing indirect hot-water boiler etc..First intermediate frequency induction heating device and lower shell are non-contacting heating means, since the principle of mid-frequency induction heating is electromagnetic induction, its heat itself generates in workpiece, the heating method heating rate is fast, oxidation and decarbonization is few, and heating efficiency is high, good process repeatability, and homogeneous heating, have many advantages, such as efficient, energy-saving and environmental protection.

Description

Mid-frequency induction heating boiler

Technical field

The utility model relates to a kind of boiler, in particular to a kind of mid-frequency induction heating boiler.

Background technique

The boiler of the prior art mostly uses coal-fired pressure furnace, fuel pressure furnace etc., increasingly due to Environmental problem Pay attention to, the more serious miniature boiler of these environmental pollutions is substantially at superseded state.For safety, due to above-mentioned pot Furnace requires greatly electrical control, if the case where encountering power failure, and additional heat source also is continuing to heat, this carrys out safety Say it is a very big problem.There are also a kind of electric boilers currently on the market, and using stainless steel electric heating tube, electric heating tube is installed on water The disadvantages of space, the easy fouling in surface and corrosion, it is relatively low that there are the thermals efficiency, and service life is short, and user's operating cost is high.

Utility model content

The purpose of the utility model is to provide a kind of efficient, energy-saving and environmental protection, the mid-frequency induction heating boiler of safety.

Purpose of the utility model is realized as follows: a kind of mid-frequency induction heating boiler, the shell including horizontal setting, It is equipped with upper shell and lower shell in shell, the both ends of upper shell and lower shell are equipped with end socket, set between upper shell and lower shell There is a connecting tube, lower shell bottom is equipped with pedestal, and pedestal is fixed on ground, away from being equipped with the at 50~100mm of lower shell outer wall One intermediate frequency induction heating device.

The mid-frequency induction heating boiler of the utility model can be widely applied to steam boiler, vacuum heat-exchanging hot water boiler, often Press hot-water boiler, without indirect hot-water boiler of pressure etc..First intermediate frequency induction heating device and lower shell are non-contacting heating means, The electromagnetic energy that first intermediate frequency induction heating device generates can be such that the pot water in lower shell is constantly heated, and water is through centre in lower shell Connecting tube circulation communicates.Since the principle of mid-frequency induction heating is electromagnetic induction, heat itself generates in workpiece, the heating Mode heating rate is fast, and oxidation and decarbonization is few, and heating efficiency is high, good process repeatability, and homogeneous heating, has efficient, energy conservation, ring The advantages that guarantor.

As a further improvement of the utility model, away from being equipped with the second Medium frequency induction at 50~100mm of upper shell outer wall Heating device, in order to further be heated to pot water in upper shell.

Mid-frequency induction heating boiler further includes insulating layer as a further improvement of the utility model, and insulating layer setting exists First intermediate frequency induction heating device outside, the first intermediate frequency induction heating device inside, upper shell outside, the second mid-frequency induction heating On the outside of device and/or on the inside of the second intermediate frequency induction heating device, to reduce the heat-energy losses of upper shell and/or lower shell.

Lower shell is connect with boiler feed water as a further improvement of the utility model, and upper shell is equipped with live steam pipe seat, Live steam pipe seat is connect with gas-distributing cylinder, and upper shell is connect with level electrode detection device, and level electrode detection device and power control cabinet connect It connects.The structure is suitable for steam boiler.

Lower shell is connect with boiler feed water as a further improvement of the utility model, vacuum in upper shell, and upper shell It is connect with heat exchanger.The structure is suitable for vacuum heat-exchanging hot water boiler.

Case top is equipped with expansion tank as a further improvement of the utility model, and lower shell is connect with boiler feed water, Upper shell is connect with heat exchanger.The structure is suitable for without the indirect hot-water boiler of pressure.

Case top is equipped with expansion tank as a further improvement of the utility model, and lower shell is connect with boiler feed water, Upper shell is equipped with atmosphere tube socket, water outlet tube socket and return water tube socket.The structure is suitable for normal-pressure hot-water boiler.

Detailed description of the invention

Fig. 1 is the schematic diagram of the embodiment 1 of the mid-frequency induction heating boiler of the utility model.

Fig. 2 is the schematic diagram of the embodiment 2 of the mid-frequency induction heating boiler of the utility model.

Fig. 3 is the schematic diagram of the embodiment 3 of the mid-frequency induction heating boiler of the utility model.

Fig. 4 is the schematic diagram of the embodiment 4 of the mid-frequency induction heating boiler of the utility model.

Wherein, 1 shell, 2 upper shells, 3 lower shells, 4 connecting tubes, 5 first intermediate frequency induction heating devices, 6 insulating layers, 7 water Position electrode inspector, 8 second intermediate frequency induction heating devices, 9 expansion tanks, 10 pedestals.

Specific embodiment

Embodiment 1

Mid-frequency induction heating boiler as shown in Figure 1 is a kind of steam boiler, the shell 1 including horizontal setting, in shell 1 Equipped with upper shell 2 and lower shell 3, the both ends of upper shell 2 and lower shell 3 are equipped with ellipsoidal head, upper shell 2 and lower shell 3 Between be equipped with connecting tube 4,3 bottom of lower shell is equipped with pedestal 10, and pedestal 10 is fixed on ground, away from 3 outer wall 50 of lower shell~ The first intermediate frequency induction heating device 5 is equipped at 100mm.Lower shell 3 is connect with boiler feed water, and intermediate frequency induction heating device 5 produces Raw electromagnetic energy can be such that pot water in lower shell 3 is constantly heated, and water is communicated through the circulation of connecting tube 4 in upper lower shell.On upper shell 2 It is provided with live steam pipe seat, steam is conveyed to gas-distributing cylinder by live steam pipe seat, then heat supply user is used through gas-distributing cylinder.In order to anti- Only upper lower shell heat-energy losses, the first intermediate frequency induction heating device 5 and upper shell outside are equipped with insulating layer 6.Upper shell 2 also with Level electrode detection device 7 connects, and level electrode detection device 7 is connect with power control cabinet.Level electrode detection device 7 is for perceiving The height situation of water level in container, and electric signal is passed into power control cabinet.

In the present embodiment, insulating layer is not set between the first intermediate frequency induction heating device 5 and lower shell 3.Also, due to upper It is mainly high-temperature steam in cylinder 2, is heated so being not required to the second intermediate frequency induction heating device is arranged outside upper shell 2, only Setting insulating layer 6 prevents heat losses.

Embodiment 2

Mid-frequency induction heating boiler as shown in Figure 2 is a kind of vacuum heat-exchanging hot water boiler, the shell including horizontal setting 1, it is equipped with upper shell 2 and lower shell 3 in shell 1, the both ends of upper shell 2 and lower shell 3 are equipped with ellipsoidal head, upper shell 2 Connecting tube 4 is equipped between lower shell 3,3 bottom of lower shell is equipped with pedestal 10, and pedestal 10 is fixed on ground, away from lower shell 3 outside The first intermediate frequency induction heating device 5 is equipped at 50~100mm of wall.Lower shell 3 is connect with boiler feed water, mid-frequency induction heating dress The electromagnetic energy for setting 5 generations can be such that pot water in lower shell 3 is constantly heated, and water is communicated through the circulation of connecting tube 4 in upper lower shell.Upper cylinder 0.02MPa negative pressure steam is generated after vacuumizing in body 2, upper shell 2 is connect with heat exchanger, in upper shell 2 in steam and heat exchanger Hot water supply user heat exchanger is returned again to through system circulation pump after water heat exchange to continue to heat after.Upper lower shell in order to prevent Insulating layer 6 is equipped on the outside of heat-energy losses, the first intermediate frequency induction heating device 5 and upper shell.

In the present embodiment, it is equipped with insulating layer between the first intermediate frequency induction heating device 5 and lower shell 3, further prevents The heat losses of lower shell 3, while insulating layer also functions to certain fixation supporting role to the first intermediate frequency induction heating device 5.

Embodiment 3

Mid-frequency induction heating boiler as shown in Figure 3 is a kind of without the indirect hot-water boiler of pressure, basic structure and Fig. 1 and figure 2 embodiment is essentially identical, the difference is that: expansion tank 9 is equipped at the top of shell 1, away from 2 50~100mm of outer wall of upper shell Place is equipped with the second intermediate frequency induction heating device 8.First intermediate frequency induction heating device 5 and the second intermediate frequency induction heating device 8 produce Raw electromagnetic energy can be such that pot water in lower shell is constantly heated, and water is reinforced the circulation of water through circulating pump and disturbed in upper lower shell It is dynamic.Heat exchanger is wherein provided in upper shell 2, pumping after water is exchanged heat with water in upper shell 2 in heat exchanger through system circulation will Hot water supply user returns again to heat exchanger after and continues to heat, and improves efficiency of heating- utilization.

In the present embodiment, between the first intermediate frequency induction heating device 5 and lower shell 3 and the second mid-frequency induction heating dress It sets and is provided with insulating layer between 8 and upper shell 2, also be provided with insulating layer outside the first intermediate frequency induction heating device 5, further decrease The heat losses of upper lower shell.

Embodiment 4

Mid-frequency induction heating boiler as shown in Figure 4 is a kind of normal-pressure hot-water boiler, the embodiment of basic structure and Fig. 3 It is essentially identical, the difference is that: to reduce by 2 heat-energy losses of upper shell, insulating layer also is provided with outside upper shell 3.And upper shell 2 Upper setting atmosphere tube socket is discharged tube socket and return water tube socket, and water pumps through system circulation and makes hot water supply user in upper shell 2 Upper shell 2 is returned again to after to continue to heat.

The principle of heating in medium frequency is: intermediate frequency electromagnetic induction coil uses non-contacting heating means with workpiece is heated.In Frequency induction heating is a kind of power supply device that power frequency 50HZ alternating current is changed into intermediate frequency (1KHZ is up to 15K HZ), three-phase Industrial-frequency alternating current becomes direct current, then direct current is become adjustable electric current of intermediate frequency after rectification, supply by capacitor and the line of induction The intermediate frequency alternating current flowed through in circle, generates the highdensity magnetic line of force in induction coil, and cuts the metal held in induction coil Material generates very big vortex in metal material.This vortex is equally with the properties of electric current of intermediate frequency, i.e. metal itself Free electron flowed in the metallic object for have resistance and to generate heat.

The advantages of heating in medium frequency, is:

(1) heating speed is fast, it is few to aoxidize de- charcoal.Since the principle of mid-frequency induction heating is electromagnetic induction, heat is in work Itself is generated in part, and since the heating method heating rate is fast, so oxidation is few, heating efficiency is high, good process repeatability.

(2) homogeneous heating, accuracy of temperature control are high.Induction heating easily realizes homogeneous heating, the small requirement of the core table temperature difference.Using temperature Control system can realize the accurate control to temperature.Low power consuming, pollution-free induction heating are compared with other heating methods, heating effect Rate is high, low energy consumption, pollution-free；Indices can meet user's requirement.Under the conditions of diathermanous, 1100 DEG C of consumption is heated to by room temperature Electricity makes boiler thermal efficiency can reach 120% less than 360 degree.

The relationship of the coil of induction heating and heating object (metal) is just as 1 side of transformer, the pass of 2 lateral coils System is the same.It is concentrated on heating object, by the induction effect of electromagnetism, is generated by the magnetic line of force that heating coil leads to electric current of intermediate frequency generation Vortex current heats heating object.Can be selected according to the type and shape of steel the frequency of alternating current appropriate, power, Heating time, retention time, shape of coil etc..

(3) advanced boiler appliance controller is used, has many advantages, such as reliable performance, high degree of automation, it is easy to use.

In short, mid-frequency induction heating boiler has the characteristics that efficient, energy-saving and environmental protection, inherently become the innovation of new era Technical products.

The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.

Claims (7)

1. a kind of mid-frequency induction heating boiler, the shell including horizontal setting, the shell is interior to be equipped with upper shell and lower shell, institute The both ends for stating upper shell and lower shell are equipped with end socket, and connecting tube, the lower shell are equipped between the upper shell and lower shell Bottom is equipped with pedestal, and the pedestal is fixed on ground, it is characterised in that: is set away from ring at 50~100mm of the lower shell outer wall There is the first intermediate frequency induction heating device.

2. mid-frequency induction heating boiler according to claim 1, it is characterised in that: away from the upper shell outer wall 50~ The second intermediate frequency induction heating device is equipped at 100mm.

3. mid-frequency induction heating boiler according to claim 1 or 2, it is characterised in that: it further include insulating layer, the heat preservation Layer be arranged on the outside of first intermediate frequency induction heating device, on the inside of the first intermediate frequency induction heating device, on the outside of upper shell, second On the outside of intermediate frequency induction heating device and/or on the inside of the second intermediate frequency induction heating device.

4. mid-frequency induction heating boiler according to claim 1, it is characterised in that: the lower shell and boiler feed water connect It connects, the upper shell is equipped with live steam pipe seat, and the live steam pipe seat is connect with gas-distributing cylinder, and the upper shell and level electrode detect Device connection, the level electrode detection device are connect with power control cabinet.

5. mid-frequency induction heating boiler according to claim 1, it is characterised in that: the lower shell and boiler feed water connect It connects, vacuum in the upper shell, and the upper shell is connect with heat exchanger.

6. mid-frequency induction heating boiler according to claim 1, it is characterised in that: the case top is equipped with swelling water Case, the lower shell are connect with boiler feed water, and the upper shell is connect with heat exchanger.

7. mid-frequency induction heating boiler according to claim 1, it is characterised in that: the case top is equipped with swelling water Case, the lower shell are connect with boiler feed water, and the upper shell is equipped with atmosphere tube socket, water outlet tube socket and return water tube socket.