CN110388684A - Inorganic-phase variable thermal storage type electric heating furnace and heating method - Google Patents
Inorganic-phase variable thermal storage type electric heating furnace and heating method Download PDFInfo
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- CN110388684A CN110388684A CN201910602515.1A CN201910602515A CN110388684A CN 110388684 A CN110388684 A CN 110388684A CN 201910602515 A CN201910602515 A CN 201910602515A CN 110388684 A CN110388684 A CN 110388684A
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- 238000005485 electric heating Methods 0.000 title claims abstract description 86
- 238000003860 storage Methods 0.000 title claims abstract description 48
- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 270
- 238000009825 accumulation Methods 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 17
- 229920003023 plastic Polymers 0.000 claims description 17
- 210000000232 gallbladder Anatomy 0.000 claims description 13
- 230000017525 heat dissipation Effects 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 11
- 230000001681 protective effect Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 9
- 238000009841 combustion method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000013589 supplement Substances 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 5
- 229910001120 nichrome Inorganic materials 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 239000012071 phase Substances 0.000 description 55
- 238000005338 heat storage Methods 0.000 description 7
- 239000012782 phase change material Substances 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000011232 storage material Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
- F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
- F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
Abstract
The invention discloses a kind of inorganic-phase variable thermal storage type electric heating furnace and heating methods, including insulated water tank, inorganic-phase variable heat accumulation pipe, electric heating unit, mixed water control temperature unit and electric control unit, inorganic-phase variable heat accumulation pipe is evenly equipped with inside insulated water tank, electric heating unit is arranged in insulated water tank inside center, mixed water control temperature unit is arranged between the water inlet pipe of insulated water tank and outlet pipe, electric heating output water temperature is controlled by mixed water control temperature unit, it is additionally provided with electric control unit outside insulated water tank, the accumulation of heat degree inside insulated water tank is controlled by electric control unit.Through the above way, there are independent heat cycles and heat release to recycle for inorganic-phase variable thermal storage type electric heating furnace and heating method of the present invention, it being capable of isolated operation also stackable operation, it can adapt to three kinds of different operating conditions: pure accumulation of heat operating condition, pure heat release operating condition and putting operating condition when storing, can be realized the inorganic-phase variable thermal storage type electric heating of low cost, long-life.
Description
Technical field
The present invention relates to phase-change heat storage technology fields, more particularly to a kind of inorganic-phase variable thermal storage type electric heating furnace and heating
Method.
Background technique
Thermal storage type electric heating furnace is a kind of to convert electrical energy into thermal energy storage within a certain period of time and get up in needs
When again thermal energy release realize heating device.Electric energy can use solar energy power generating and the paddy in evening on daytime
Electricity can make discontinuously becoming the continuous use of heating or controllably making for photovoltaic power generation by using for thermal storage type electric heating furnace
With, and realize the peak load shifting of power grid electricity consumption, improve the utilization efficiency of the energy.
Heat-storing material can be divided into sensible heat accumulation of heat and two kinds of latent-heat storage according to the division of heat storage medium.
Sensible heat accumulation of heat is generally divided into water and stores and store admittedly: water storage cost is minimum, also most safe, but due to that can only take limited temperature drop
Sensible heat, bring that unit volume thermal storage density is smaller, the disadvantages of taking up a large area.
Gu storing is the feature big in temperature change and small volume change using solid material (magnesia brick, ceramics, cement etc.), real
Now big temperature difference sensible heat accumulation of heat, advantage are that unit volume thermal storage density is big, manufacturing cost is low；But there is also following disadvantages: (1), 600
DEG C or more high-temperature heat accumulation, equipment safety in operation and reliability not can guarantee；(2) air heat-exchange is used, heat transfer temperature difference is very big,
The effective rate of utilization of thermal energy is low；(3) system heat waste is very big.
Latent-heat storage refers to when solid-liquid phase change occurs under specific temperature (phase transition temperature) using energy storage materials of phase change, companion
It absorbs heat and a kind of exothermic heat storage type with a large amount of, has thermal storage density big, intimate isothermal etc. in heat absorption and exothermic process
Feature, stored relative to water and it is solid store, have many advantages, such as small in size, storage/heat release temperature difference is small, can be applied to the when air-conditioning of heat flow density
Section, improves the utilization efficiency of the energy.
Existing phase-change material can be divided into organic phase change material, inorganic phase-changing material and composite phase-change material.Inorganic-phase variable material
Material includes crystalline hydrate salt, fuse salt, metal alloy and other inorganic matters, is crystalline hydrate salt and molten wherein most widely used
Melt salt, has many advantages, such as that material is cheap, thermal storage density is big.But inorganic phase-changing material is with corrosivity in strong, solid-liquid phase-change process
The disadvantages of volume change is big and heating conduction is poor, brings the defects of electric heating regenerative apparatus manufacturing cost is high, the service life is short.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of inorganic-phase variable thermal storage type electric heating furnace and heating method, tools
Have independent heat cycles and heat release circulation, can isolated operation also stackable operation, can adapt to three kinds of different operating conditions: pure storage
Thermal condition, pure heat release operating condition and while store while put operating condition, can be realized low cost, the long-life inorganic-phase variable thermal storage type electric heating.
In order to solve the above technical problems, one technical scheme adopted by the invention is that: a kind of inorganic-phase variable heat accumulating type is provided
Electric heating furnace, including insulated water tank, inorganic-phase variable heat accumulation pipe, electric heating unit, mixed water control temperature unit and electric control unit, are protected
Inorganic-phase variable heat accumulation pipe is evenly equipped with inside reservoir, electric heating unit is arranged in insulated water tank inside center,
Mixed water control temperature unit is arranged between the water inlet pipe of insulated water tank and outlet pipe, controls electric heating by mixed water control temperature unit
Output water temperature, insulated water tank are additionally provided with electric control unit outside, pass through the storage inside electric control unit control insulated water tank
Hot degree.
In a preferred embodiment of the present invention, insulated water tank include liner, outer gallbladder and setting liner and outer gallbladder it
Between insulating layer, be additionally provided with water inlet, water outlet and flange port on insulated water tank,
Water inlet is located at the top of insulated water tank, and water inlet pipe passes through leads in outer gallbladder and liner and insulated water tank center electric heating unit
The guide ring on flow tube top is welded to connect, and water inlet pipe, which passes through, passes through welded seal at condenser hot well liner；
Water outlet is located at insulated water tank lower part, and outlet pipe extends to insulated water tank intracavity bottom centre bit after passing through outer gallbladder and liner
It sets and aperture downward, outlet pipe passes through welded seal at condenser hot well liner；
Flange port is located at the top of insulated water tank, and flange port includes flange bolt hole, flange plate, sealing ring and connection bolt, connects
The flange bolt hole that connecting bolt passes through flange plate two sides is fixed, and is additionally provided with sealing ring on the inside of flange plate,
The mounting hole for installing electric heating tube is also provided at flange plate center, mounting hole is internal thread hole or flange hole,
Electric heating tube is threadedly coupled with the connection of flange port use or flanged joint.
In a preferred embodiment of the present invention, insulated water tank is internally provided with heat accumulation pipe pipe support, inorganic-phase variable heat accumulation pipe
It is evenly spaced in insulated water tank by the support of heat accumulation pipe pipe support.
In a preferred embodiment of the present invention, inorganic-phase variable heat accumulation pipe include organic plastic tube, inorganic phase-changing material and
Pipe cap, organic plastics pipe inside are filled with inorganic phase-changing material, and the both ends of organic plastics pipe are welded with pipe cap.
In a preferred embodiment of the present invention, heat accumulation pipe pipe support includes up-hole plate, orifice plate and support column, up-hole plate and
Orifice plate is arranged horizontally in inside insulated water tank, and support column is located to be supported in the bottom of up-hole plate and orifice plate.
In a preferred embodiment of the present invention, electric heating unit includes diversion pipe, electric heating tube and guide ring, diversion pipe
The lower port on insulated water tank inner cavity axis center straight tube position, diversion pipe,
Electric heating tube lower part is plugged in inside diversion pipe, is inserted in the electric heating tube inside diversion pipe and is provided with nichrome resistance and adds
Heated filament, guide ring are arranged at the top of diversion pipe, and guide ring is arranged concentrically with diversion pipe, for water conservancy diversion of intaking.
In a preferred embodiment of the present invention, water control temperature unit is mixed to include bypass flow regulator, electric two-way valve, return
Water temperature probe and connection water pipe, return water temperature probe are arranged between water inlet pipe and outlet pipe, and water inlet tube end is provided with electricity
Dynamic two-port valve, is connected between water inlet pipe and outlet pipe by connecting water pipe, is formed bypass line, is provided with bypass on bypass line
Flow control valve.
In a preferred embodiment of the present invention, electric control unit includes earth leakage circuit-breaker, A.C. contactor, micro- electricity
Brain control mainboard, temperature transducer and dry combustion method protective switch,
Insulated water tank bottom thermometric blind pipe is internally provided with temperature transducer, micro computer control mainboard and temperature transducer and exchanges
Contactor is electrically connected, and micro computer control mainboard is also connected with earth leakage circuit-breaker and the control of dry combustion method protective switch, earth leakage protective
Switch is connected to the power input of electric control unit.
In a preferred embodiment of the present invention, inorganic-phase variable thermal storage type electric heating furnace interior is situated between by water as heat exchange
Matter realizes heat cycles and heat release circulation.
In order to solve the above technical problems, another technical solution used in the present invention is: providing a kind of inorganic-phase variable accumulation of heat
The heating method of formula electric heating furnace, including pure accumulation of heat state of cyclic operation, pure heat release state of cyclic operation and while store while put operating condition:
The course of work of pure accumulation of heat circulation are as follows:
Electric heating tube, which is powered, generates heat transferring medium water in heat diversion pipe, and water temperature rise density of being heated becomes smaller floating, from water conservancy diversion
Pipe upper opening overflows, and meets circular arc end cap on insulated water tank and stops simultaneously water conservancy diversion, then 180 ° of steerings, along inorganic phase outside diversion pipe
The channel of change heat accumulation pipe sinks, and cools, and density becomes larger, and subsidence velocity faster, passes through orifice plate, the circle under insulated water tank
Collect at arc end cap, then 180 ° are redirected into the heated water flow risen of diversion pipe under shed supplement, form accumulation of heat circulation；
Heat release On The Cycle Working Process are as follows:
Load water pump, heating return water through water pump pressurize warm water tank water inlet again through guide ring water conservancy diversion, circle on insulated water tank
180 ° of steerings after arc end cap stops, inorganic-phase variable accumulation of heat tube lane sinks outside diversion pipe, and heated heating, passes through lower opening
Plate collects at circular arc end cap under insulated water tank, mixes water control temperature through collecting pipe, attemperater delivery ports and mixed water control temperature unit and exists
It is discharged under set temperature, into heating network and the heat dissipation of heat dissipation end, cooling, enters attemperater water inlets through water pump pressurization,
Form heat release circulation；
The course of work of heat release circulation in heating are as follows:
Risen from diversion pipe upper opening by the water of electric heater for heating and flow through water pump and pressurize warm water tank in diversion pipe
Water inlet and the heating return water for flowing through guide ring converge into one,
Inorganic-phase variable accumulation of heat tube lane sinks outside diversion pipe, and heat release cooling or heated heating, passes through orifice plate, is keeping the temperature
To collect at circular arc end cap under water tank, a stock-traders' know-how enters the heated water flow risen of diversion pipe under shed supplement, heat cycles are formed,
Another stock-traders' know-how collecting pipe, the water outlet of insulated water tank and mixed water control temperature unit mix water control temperature and are discharged at a certain temperature, into
Enter heating network and the heat dissipation of heat dissipation end, cooling, the water inlet for entering insulated water tank through water pump pressurization forms heat release circulation.
The beneficial effects of the present invention are: inorganic-phase variable thermal storage type electric heating furnace of the present invention and heating method have independent add
Thermal cycle and heat release circulation, can isolated operation also stackable operation, can adapt to three kinds of different operating conditions: pure accumulation of heat operating condition, pure
Heat release operating condition and while store while put operating condition, can be realized low cost, the long-life inorganic-phase variable thermal storage type electric heating.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of one preferred embodiment of inorganic-phase variable thermal storage type electric heating furnace of the invention；
Fig. 2 is the structural schematic diagram of inorganic-phase variable heat accumulation pipe in inorganic-phase variable thermal storage type electric heating furnace of the invention；
Fig. 3 is the structural schematic diagram of heat accumulation pipe pipe support and electric heating unit in inorganic-phase variable thermal storage type electric heating furnace of the invention；
Fig. 4 is the structural schematic diagram that water control temperature unit is mixed in inorganic-phase variable thermal storage type electric heating furnace of the invention；
Fig. 5 is the control principle drawing that water control temperature unit is mixed in inorganic-phase variable thermal storage type electric heating furnace of the invention；
Fig. 6 is the control principle drawing of electric control unit in inorganic-phase variable thermal storage type electric heating furnace of the invention；
The components in the drawings are labeled as follows: 100, insulated water tank, 110, liner, 120, outer gallbladder, 130, insulating layer, 140, water inlet
Mouthful, 150, water outlet, 160, flange port, 161, flange bolt hole, 162, flange plate, 163, sealing ring, 164, connection bolt,
165, mounting hole, 170, water inlet pipe, 180, outlet pipe, 190, thermometric blind pipe, 200, inorganic-phase variable heat accumulation pipe, 210, organic plastics
Pipe, 220, pipe cap, 230, inorganic phase-changing material, 300, heat accumulation pipe pipe support, 310, up-hole plate, 320, orifice plate, 330, support column,
400, electric heating unit, 410, diversion pipe, 420, electric heating tube, 430, guide ring, 500, mixed water control temperature unit, 510, bypass stream
Adjustable valve, 520, electric two-way valve, 530, return water temperature probe, 540, connection water pipe, 600, electric control unit, 610, leakage
Electric protective circuit breaker, 620, A.C. contactor, 630, micro computer control mainboard, 640, temperature transducer, 650, dry combustion method protective switch.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1 to Fig. 6 is please referred to, the embodiment of the present invention includes:
Embodiment one
A kind of inorganic-phase variable thermal storage type electric heating furnace, including insulated water tank 100, inorganic-phase variable heat accumulation pipe 200, electric heating unit
400, water control temperature unit 500 and electric control unit 600 are mixed, is evenly equipped with inorganic-phase variable heat accumulation pipe 200 inside insulated water tank 100,
Electric heating unit 400 is arranged in 100 inside center of insulated water tank.
Mixed water control temperature unit 500 is arranged between the water inlet pipe and outlet pipe of insulated water tank 100, by mixing water control temperature unit
500 control electric heating output water temperatures, are additionally provided with electric control unit 600 on insulated water tank 100, pass through electric control unit
Accumulation of heat degree inside 600 control insulated water tanks 100.
Insulated water tank 100 includes liner 110, outer gallbladder 120 and the insulating layer being arranged between liner 110 and outer gallbladder 120
130, water inlet 140, water outlet 150 and flange port 160 are additionally provided on insulated water tank 100,
Water inlet 140 is located at the top of insulated water tank 100, and water inlet pipe 170 passes through outer gallbladder 120 and liner 110 and insulated water tank 100
The guide ring on diversion pipe top is welded to connect in center electric heating unit 400, and water inlet pipe 170 passes through the liner of insulated water tank 100
There is welded seal structure at 110.
Water outlet 150 is located at 100 lower part of insulated water tank, and outlet pipe 180 extends to guarantor after passing through outer gallbladder 120 and liner 110
100 intracavity bottom center of reservoir and aperture downward, outlet pipe 180, which passes through, has welding at 100 liner 110 of insulated water tank
Sealing structure.
Flange port 160 is located at the top of insulated water tank 100, flange port 160 include flange bolt hole 161, flange plate 162,
Sealing ring 163 and connection bolt 164, the flange bolt hole 161 that connection bolt 164 passes through 162 two sides of flange plate are fixed,
Sealing ring 163 is additionally provided on the inside of flange plate 162.
It is also provided with the mounting hole 165 for installing electric heating tube at 162 center of flange plate, mounting hole 165 is interior spiral shell
Pit or flange hole, electric heating tube is threadedly coupled with the connection of flange port 160 use or flanged joint.
Insulated water tank 100 is internally provided with heat accumulation pipe pipe support 300, and inorganic-phase variable heat accumulation pipe 200 passes through heat accumulation pipe pipe support 300
Support is evenly spaced in insulated water tank 100.
Inorganic-phase variable heat accumulation pipe 200 includes organic plastic tube 210, inorganic phase-changing material 230 and pipe cap 220, organic plastics
Inorganic phase-changing material 230 is filled with inside pipe 210, the both ends of organic plastics pipe 210 are welded with pipe cap 220.
The manufacturing step of inorganic-phase variable heat accumulation pipe 200 are as follows: one end of organic plastics pipe 210 and pipe cap 220 a, are used into heat
Melting welding is connected and is disposed vertically, opening up；B, by configured 230 liquid of Inorganic phase change energy storage material by organic plastics pipe 21
Upper opening at fill；C, it uses water cooling or air-cooled crystallizes electrodeless phase-changing energy storage material 230 for solid；D, by organic plastics pipe
210 upper opening and pipe cap 220 uses sweat soldering, completes the manufacture of inorganic-phase variable heat accumulation pipe 200.
The material of the organic plastics pipe 210 is PET, PE, PP, PS, PA, ABS etc., is drawn by extrusion process.
The material of the pipe cap 220 is identical as the material of organic plastics pipe 210, is formed by Shooting Technique.
The inorganic phase-changing material 230 is crystalline hydrate salt, halide, sulfate, nitric acid including alkali and alkaline-earth metal
The eutectic saline solution of salt, phosphate, carbonate and acetate etc..
Heat accumulation pipe pipe support 300 includes up-hole plate 310, orifice plate 320 and support column 330, up-hole plate 310 and orifice plate 320
It is arranged horizontally in inside insulated water tank 100, support column 330 is located to be supported in the bottom of up-hole plate 310 and orifice plate 320.
Electric heating unit 400 includes diversion pipe 410, electric heating tube 420 and guide ring 430, and diversion pipe 410 is located at heat preservation water
100 inner cavity axis center straight tube position of case, lower port on diversion pipe 410；
Electric heating tube 420 is 304 stainless steel tubes, and built-in nichrome resistance heater strip simultaneously fills silica flour, and 420 lower part of electric heating tube is inserted
It is located inside diversion pipe 410, is only inserted in the electric heating tube 420 inside diversion pipe 410 and is provided with nichrome resistance heater strip；
The setting of guide ring 430 is at 410 top of diversion pipe, and guide ring 430 is arranged concentrically with diversion pipe 410, for water conservancy diversion of intaking.
Mixed water control temperature unit 500 includes bypass flow regulator 510, electric two-way valve 520,530 and of return water temperature probe
Water pipe 540 is connected, return water temperature probe 530 is arranged between water inlet pipe 170 and outlet pipe 180, and 170 end of water inlet pipe is provided with
Electric two-way valve 520 is connected between water inlet pipe 170 and outlet pipe 180 by connecting water pipe 540, forms bypass line, bypass pipe
Road is provided with bypass flow regulator 510.
The working principle of mixed water control temperature unit 500 is:
External water circulating pump starting, heating terminal water route start the cycle over, and return water temperature probe 530 detects return water temperature, works as return water
When temperature is lower than setting value, electric two-way valve 520 is opened, and heating return water enters phase-transition heat-storage water from 100 water inlet of insulated water tank
Heat temperature raising inside case, then enters heating terminal water route from water outlet, by adjusting bypass flow regulator 510, allows part
The low-temperature return water of ratio is mixed into from the high-temperature water that water outlet comes out by bypass line, achievees the purpose that adjust leaving water temperature.
Electric control unit 600 includes earth leakage circuit-breaker 610, A.C. contactor 620, micro computer control mainboard 630, surveys
Temperature sensor 640 and dry combustion method protective switch 650,
100 bottom thermometric blind pipe of insulated water tank is internally provided with temperature transducer 640, and micro computer control mainboard 630 and thermometric pass
Sensor 640 and A.C. contactor 620 are electrically connected, and micro computer control mainboard 630 is also protected with earth leakage circuit-breaker 610 and dry combustion method
The control connection of switch 650, earth leakage circuit-breaker 610 are connected to the power input of electric control unit 600,
Occur cutting off the water supply inside insulated water tank situation when, dry combustion method protective switch starting, cut off the power and no longer work.
The working principle of electric control unit 600 is:
After system energization booting, micro computer control mainboard 630 passes through the detection heat preservation of 100 inside temperature transducer 640 of insulated water tank
Water temperature T in water tank 1002:
Work as T2Do not reach set temperature, then opens A.C. contactor 620,420 electrified regulation of electric heating tube；
Work as T2Reach set temperature, illustrates that accumulation of heat has stored full in insulated water tank 100, closes A.C. contactor 620, electric heating tube
420 power-off stop heating.
Inorganic-phase variable thermal storage type electric heating furnace interior, as heat transferring medium, realizes heat cycles and heat release circulation by water,
Inorganic-phase variable thermal storage type electric heating furnace accumulation of heat degree is controlled by electric control unit 600, is controlled by mixed water control temperature unit 500
Inorganic-phase variable thermal storage type electric heating output water temperature.
Heat cycles and heat release circulation be two mutually independent systems, can isolated operation, also stackable operation, to adapt to
The different operating conditions of three kinds of inorganic-phase variable thermal storage type electric heating furnace: pure accumulation of heat operating condition, pure heat release operating condition and operating condition is put when storing.
Embodiment two
Using the inorganic-phase variable thermal storage type electric heating furnace in embodiment one, heat cycles working principle are as follows:
Electric heating tube 420, which is powered, generates heat transferring medium water in heat diversion pipe 410, and water temperature rise density of being heated becomes smaller floating,
It is overflowed from 410 upper opening of diversion pipe, meets circular arc end cap on insulated water tank 100 and stop simultaneously water conservancy diversion, 180 ° of steerings, along diversion pipe
The channel of 410 outer inorganic-phase variable heat accumulation pipes 200 sinks, and cools, and density becomes larger, and subsidence velocity faster, passes through orifice plate
320, collect at circular arc end cap under insulated water tank 100,180 ° are redirected into the heated water risen of 410 under shed of diversion pipe supplement
Stream, forms a circulation, this is circulation, referred to as heat cycles in electric heating free convection.
In warming cycle, since hot water temperature is greater than the transformation temperature of electrodeless phase-change material 230 in heat accumulation pipe 200,
From 200 clearance channel of inorganic-phase variable heat accumulation pipe by when it is cooling sink, electrodeless phase-change material 230 in inorganic-phase variable heat accumulation pipe 200
It is liquid from Solid State Transformation by heat of solution.
Since volume can expand electrodeless phase-change material 230 in course of dissolution, the locally drum of organic plastics pipe 210 can be brought
Swollen, longtime running influences the service life of organic plastics pipe 210, therefore uses and heat from top to bottom, efficiently solves this problem.
Embodiment three
Using the inorganic-phase variable thermal storage type electric heating furnace in embodiment one, heat release cycle operation principle are as follows:
Heat release circulation be load water pump forced-convection heat transfer circulation, heating return water through water pump pressurize warm water tank 100 into
The mouth of a river 140 is met circular arc end cap on insulated water tank 100 through 430 water conservancy diversion of guide ring and is stopped, and 180 ° of steerings are inorganic outside diversion pipe 410
2 channels of phase-transition heat-storage pipe sink, and heated heating, pass through orifice plate 320, collect at circular arc end cap under insulated water tank 100,
It mixes water control temperature through collecting pipe, attemperater delivery ports 150 and mixed water control temperature unit 500 to be discharged at a certain temperature, into heating
Pipe network and the heat dissipation of heat dissipation end, cooling enter 100 water inlet 140 of insulated water tank through water pump pressurization, form a circulation, this is
Forced-convection heat transfer circulation, also referred to as heat release recycle.
In heat release cyclic process, since return water temperature is less than electrodeless phase-change material 230 in inorganic-phase variable heat accumulation pipe 200
Transformation temperature, heating of being heated when passing through from 200 clearance channel of inorganic-phase variable heat accumulation pipe, electrodeless phase transformation in inorganic-phase variable heat accumulation pipe 200
230 exothermic crystallization of material, is changed into solid-state from liquid.
Example IV
Using the inorganic-phase variable thermal storage type electric heating furnace in embodiment one, the working principle of the side Bian Jiare heat release circulation are as follows:
In heating, heat release circulation is the superposition of heat cycles and heat release circulation, in the process by electric heating in diversion pipe 410
Pipe 420 heat water rise from 410 upper opening of diversion pipe with flow through water pump pressurize warm water tank 100 water inlet 140 and
The heating return water for flowing through guide ring 430 converges into one；
Sink along 410 outer inorganic-phase variable heat accumulation pipe of diversion pipe, 200 channels, and (mixed water temperature is greater than inorganic-phase variable for heat release cooling
The phase point temperature of material 230) or heated heating (phase point temperature that mixed water temperature is less than inorganic phase-changing material 230), it passes through
Orifice plate 320 collects at circular arc end cap under insulated water tank 100, and a stock-traders' know-how enters the heated rising of 410 under shed of diversion pipe supplement
Water flow, formed heat cycles；
Another stock-traders' know-how collecting pipe, the water outlet 150 of insulated water tank 100 and mixed water control temperature unit 500 mix water control temperature in a certain temperature
Lower water outlet enters the water inlet 140 of insulated water tank 100 through water pump pressurization into heating network and the heat dissipation of heat dissipation end, cooling,
Form heat release circulation.
The beneficial effect of inorganic-phase variable thermal storage type electric heating furnace and heating method of the present invention is:
Recycled with independent heat cycles and heat release, can isolated operation also stackable operation, can adapt to three kinds of different works
Condition: pure accumulation of heat operating condition, pure heat release operating condition and while store while put operating condition, can be realized low cost, the long-life inorganic-phase variable heat accumulating type
Electric heating.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of inorganic-phase variable thermal storage type electric heating furnace, which is characterized in that add including insulated water tank, inorganic-phase variable heat accumulation pipe, electricity
Hot cell mixes water control temperature unit and electric control unit, is evenly equipped with inorganic-phase variable heat accumulation pipe, electric heating unit inside insulated water tank
It is arranged in insulated water tank inside center,
Mixed water control temperature unit is arranged between the water inlet pipe of insulated water tank and outlet pipe, controls electric heating by mixed water control temperature unit
Output water temperature, insulated water tank are additionally provided with electric control unit outside, pass through the storage inside electric control unit control insulated water tank
Hot degree.
2. inorganic-phase variable thermal storage type electric heating furnace according to claim 1, which is characterized in that insulated water tank include liner,
Outer gallbladder and the insulating layer being arranged between liner and outer gallbladder are additionally provided with water inlet, water outlet and flange port on insulated water tank,
Water inlet is located at the top of insulated water tank, and water inlet pipe passes through leads in outer gallbladder and liner and insulated water tank center electric heating unit
The guide ring on flow tube top is welded to connect, and water inlet pipe, which passes through, passes through welded seal at condenser hot well liner；
Water outlet is located at insulated water tank lower part, and outlet pipe extends to insulated water tank intracavity bottom centre bit after passing through outer gallbladder and liner
It sets and aperture downward, outlet pipe passes through welded seal at condenser hot well liner；
Flange port is located at the top of insulated water tank, and flange port includes flange bolt hole, flange plate, sealing ring and connection bolt, connects
The flange bolt hole that connecting bolt passes through flange plate two sides is fixed, and is additionally provided with sealing ring on the inside of flange plate,
The mounting hole for installing electric heating tube is also provided at flange plate center, mounting hole is internal thread hole or flange hole,
Electric heating tube is threadedly coupled with the connection of flange port use or flanged joint.
3. inorganic-phase variable thermal storage type electric heating furnace according to claim 1, which is characterized in that insulated water tank is internally provided with
Heat accumulation pipe pipe support, inorganic-phase variable heat accumulation pipe are evenly spaced in insulated water tank by the support of heat accumulation pipe pipe support.
4. inorganic-phase variable thermal storage type electric heating furnace according to claim 3, which is characterized in that inorganic-phase variable heat accumulation pipe includes
Organic plastics pipe, inorganic phase-changing material and pipe cap, are filled with inorganic phase-changing material inside organic plastics pipe, and the two of organic plastics pipe
End is welded with pipe cap.
5. inorganic-phase variable thermal storage type electric heating furnace according to claim 3, which is characterized in that heat accumulation pipe pipe support includes upper hole
Plate, orifice plate and support column, up-hole plate and orifice plate are arranged horizontally in inside insulated water tank, and support column is located in up-hole plate under
The bottom of orifice plate is supported.
6. inorganic-phase variable thermal storage type electric heating furnace according to claim 1, which is characterized in that electric heating unit includes water conservancy diversion
Pipe, electric heating tube and guide ring, diversion pipe are located at insulated water tank inner cavity axis center straight tube position, lower port on diversion pipe,
Electric heating tube lower part is plugged in inside diversion pipe, is inserted in the electric heating tube inside diversion pipe and is provided with nichrome resistance and adds
Heated filament, guide ring are arranged at the top of diversion pipe, and guide ring is arranged concentrically with diversion pipe, for water conservancy diversion of intaking.
7. inorganic-phase variable thermal storage type electric heating furnace according to claim 1, which is characterized in that mixed water control temperature unit includes side
Through-flow adjustable valve, electric two-way valve, return water temperature probe and connection water pipe, return water temperature probe are arranged in water inlet pipe and water outlet
Between pipe, water inlet tube end is provided with electric two-way valve, is connected between water inlet pipe and outlet pipe by connecting water pipe, forms bypass
Pipeline is provided with bypass flow regulator on bypass line.
8. inorganic-phase variable thermal storage type electric heating furnace according to claim 1, which is characterized in that electric control unit includes leakage
Electric protective circuit breaker, A.C. contactor, micro computer control mainboard, temperature transducer and dry combustion method protective switch,
Insulated water tank bottom thermometric blind pipe is internally provided with temperature transducer, micro computer control mainboard and temperature transducer and exchanges
Contactor is electrically connected, and micro computer control mainboard is also connected with earth leakage circuit-breaker and the control of dry combustion method protective switch, earth leakage protective
Switch is connected to the power input of electric control unit.
9. inorganic-phase variable thermal storage type electric heating furnace described according to claim 1 ~ 8, which is characterized in that inorganic-phase variable regenerative electrochemical
Heat cycles and heat release circulation are realized as heat transferring medium by water inside heating stove.
10. a kind of heating method of inorganic-phase variable thermal storage type electric heating furnace, which is characterized in that any using such as claim 1 ~ 9
Inorganic-phase variable thermal storage type electric heating furnace described in, including pure accumulation of heat state of cyclic operation, pure heat release state of cyclic operation and side store Bian Fanggong
Condition:
The course of work of pure accumulation of heat circulation are as follows:
Electric heating tube, which is powered, generates heat transferring medium water in heat diversion pipe, and water temperature rise density of being heated becomes smaller floating, from water conservancy diversion
Pipe upper opening overflows, and meets circular arc end cap on insulated water tank and stops simultaneously water conservancy diversion, then 180 ° of steerings, along inorganic phase outside diversion pipe
The channel of change heat accumulation pipe sinks, and cools, and density becomes larger, and subsidence velocity faster, passes through orifice plate, the circle under insulated water tank
Collect at arc end cap, then 180 ° are redirected into the heated water flow risen of diversion pipe under shed supplement, form accumulation of heat circulation；
Heat release On The Cycle Working Process are as follows:
Load water pump, heating return water through water pump pressurize warm water tank water inlet again through guide ring water conservancy diversion, circle on insulated water tank
180 ° of steerings after arc end cap stops, inorganic-phase variable accumulation of heat tube lane sinks outside diversion pipe, and heated heating, passes through lower opening
Plate collects at circular arc end cap under insulated water tank, mixes water control temperature through collecting pipe, attemperater delivery ports and mixed water control temperature unit and exists
It is discharged under set temperature, into heating network and the heat dissipation of heat dissipation end, cooling, enters attemperater water inlets through water pump pressurization,
Form heat release circulation；
The heat release On The Cycle Working Process in heating are as follows:
Risen from diversion pipe upper opening by the water of electric heater for heating and flow through water pump and pressurize warm water tank in diversion pipe
Water inlet and the heating return water for flowing through guide ring converge into one,
Inorganic-phase variable accumulation of heat tube lane sinks outside diversion pipe, and heat release cooling or heated heating, passes through orifice plate, is keeping the temperature
To collect at circular arc end cap under water tank, a stock-traders' know-how enters the heated water flow risen of diversion pipe under shed supplement, heat cycles are formed,
Another stock-traders' know-how collecting pipe, the water outlet of insulated water tank and mixed water control temperature unit mix water control temperature and are discharged at a certain temperature, into
Enter heating network and the heat dissipation of heat dissipation end, cooling, the water inlet for entering insulated water tank through water pump pressurization forms heat release circulation.
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