CN108917177A - Fused salt heating device and fused salt heating means - Google Patents
Fused salt heating device and fused salt heating means Download PDFInfo
- Publication number
- CN108917177A CN108917177A CN201810610139.6A CN201810610139A CN108917177A CN 108917177 A CN108917177 A CN 108917177A CN 201810610139 A CN201810610139 A CN 201810610139A CN 108917177 A CN108917177 A CN 108917177A
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- Prior art keywords
- fused salt
- temperature
- tank
- heating device
- heating
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- 150000003839 salts Chemical class 0.000 title claims abstract description 106
- 238000010438 heat treatment Methods 0.000 title claims abstract description 52
- 239000000919 ceramic Substances 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 5
- 230000008018 melting Effects 0.000 claims abstract description 5
- 230000005619 thermoelectricity Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000005485 electric heating Methods 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
本发明公开了熔盐加热装置，包括熔盐罐和电加热装置两部分；使用温控器与交流接触器控制陶瓷加热器，通过陶瓷加热器发热、并且与罐壁直接接触的方式向罐内熔盐导热的方式熔化熔盐。本发明可以较好地加热熔盐，与现有装置相比，具有成本低、部件更换方面、运行可靠性高等诸多优点。本发明进一步完善了加热熔盐的方法，不仅可适用于熔盐的加热，也可推广至其他熔点较高、腐蚀性较强的介质。
The invention discloses a molten salt heating device, which includes two parts: a molten salt tank and an electric heating device; a temperature controller and an AC contactor are used to control a ceramic heater, and the ceramic heater generates heat and directly contacts with the tank wall. Molten salt melts the molten salt by conducting heat. The invention can heat the molten salt well, and compared with the existing device, it has many advantages such as low cost, parts replacement, high operation reliability and the like. The invention further perfects the method for heating molten salt, which is not only applicable to the heating of molten salt, but also can be extended to other media with higher melting point and stronger corrosiveness.
Description
Technical field
The invention belongs to fused salt heating device and method and technology fields, and in particular to fused salt heating device further relates to fused salt
Heating means.
Background technique
Fused salt refers generally to the mixture of the salts such as nitrate, chloride, carbonate, fluoride salt, has, heat high using temperature
The advantages such as stability is high, specific heat capacity is high, convective heat-transfer coefficient is high, viscosity is low, saturated vapor forces down, price is low, while having one
Fixed latent heat of phase change is very suitable for serving as heat transfer heat-storage medium.Either nuclear energy power generation or photo-thermal power generation all be unable to do without and pass storage
Thermal medium, fused salt relies on to be had broad application prospects in its production process of unique advantage.
In engineer application, fused salt is rationally utilized, it is necessary to the heating of solid fused salt is first fused into liquid.But due to molten
Salt setting temperature is high, running temperature is high, and has the characteristics that corrosive, produces during heating to fused salt all
More technical problems.Currently, the fused salt heating device that researchers use is contact heating mode, heater is directly and fused salt
Contact is heated.Though this method heating speed is fast, fused salt corrosion is strong, cause to damage to heating equipment using meeting for a long time
Evil, reduces the reliability of heating system.Therefore it provides a heating system reliable for operation will make up fused salt heating art
Technological deficiency has important reference value on engineer application.
Summary of the invention
The object of the present invention is to provide a kind of fused salt heating devices, and it is rotten to solve heating device existing in the prior art
The problem of erosion.
It is a further object to provide a kind of fused salt heating means.
A technical solution of the present invention is fused salt heating device, including fused salt tank, fused salt tank outer cover are equipped with
Ceramic heater, fused salt tank and ceramic heater connect electric heater unit by conducting wire, are respectively arranged with exhaust at the top of fused salt tank
Valve and inlet valve, fused salt pot bottom are provided with blow-off valve.
The features of the present invention also characterized in that
Electric heater unit includes power supply, and power supply connects temperature controller by conducting wire, and temperature controller is separately connected exchange by conducting wire
Contactor and temperature sensor, A.C. contactor connect ceramic heater by conducting wire, and temperature sensor is connected molten by conducting wire
Salt cellar.
Insulating layer is provided between fused salt tank and ceramic heater.
Insulating layer is provided with outside ceramic heater.
Temperature sensor is thermocouple.
Temperature sensor is armoured thermocouple.
Another technical solution of the present invention is,
A kind of fused salt heating means, specific step is as follows：
Step 1 first checks for heater circuit, guarantees to open inlet valve without broken string, drain conditions, be packed into fused salt tank
Fused salt is then turned off inlet valve, and blow-off valve is kept to close, and opens exhaust valve；
The temperature setting of temperature controller is to open power supply not less than fused salt melting temperature by step 2；
After step 3, heating, power supply is first closed, is cooled to room temperature to temperature in fused salt tank, turns off exhaust valve.
The beneficial effects of the invention are as follows：At low cost, simple, easy to disassemble, temperature control effect is good, homogeneous heating, corrosion resistant
Property it is strong, system reliability is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of fused salt heating device of the present invention.
In figure, 1. fused salt tanks, 2. ceramic heaters, 3. electric heater units, 4. exhaust valves, 5. inlet valves, 6. blow-off valves, 7.
Power supply, 8. temperature controllers, 9. A.C. contactors, 10. temperature sensors.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Fused salt heating device of the present invention, as shown in Figure 1, including fused salt tank 1,1 outer cover of fused salt tank is equipped with ceramic heater
2, fused salt tank 1 connects electric heater unit 3 by conducting wire with ceramic heater 2, and 4 He of exhaust valve is respectively arranged at the top of fused salt tank 1
Inlet valve 5,1 bottom of fused salt tank are provided with blow-off valve 6.
The effect of exhaust valve 4 is that gas in fused salt tank 1 can be discharged in fused salt heating process, prevents temperature rise in fused salt tank 1
Caused by air pressure it is excessively high.
1 tank body material selection 06Cr of fused salt tank17Ni12Mo2(316) stainless steel adds Mo element, makes its corrosion resistance and height
Warm intensity is greatly improved.
Electric heater unit 3 includes power supply 7, and power supply 7 connects temperature controller 8 by conducting wire, and temperature controller 8 is separately connected by conducting wire
A.C. contactor 9 and temperature sensor 10, A.C. contactor 9 connect ceramic heater 2 by conducting wire, and temperature sensor 10 passes through
Conducting wire connects fused salt tank 1, temperature sensor jack i.e. thermocouple jack is equipped in fused salt tank 1, for connecting temperature sensor
10.Temperature sensor jack, that is, thermocouple jack of the probe insertion of temperature sensor 10 1 bottom of fused salt tank, measures in fused salt tank 1
The temperature of bottom fused salt；10 compensating wire of temperature sensor is connected to temperature controller 8, to 8 feedback temperature of temperature controller.
Fused salt tank 1 is heated by ceramic heater 2, is heated to fused salt melting temperature or more, guarantees that fused salt is complete in tank
Portion's fusing.Ceramic heater 2 and 1 outer wall of fused salt tank are in close contact, and are generated heat by ceramic heater 1, and pass through 1 tank skin of fused salt tank
It is thermally conductive to melt solid fused salt.
Temperature controller 8 is restored automatically using multiple digital filter circuit, interference and the temperature controller of PID function.
Insulating layer is provided between fused salt tank 1 and ceramic heater 2.Insulating layer is the aluminium silicate fiber for being resistant to 1260 DEG C of high temperature
Dimension makees thermal insulation material, integrally keeps the temperature to fused salt tank, while effectively accelerating heating speed；
Insulating layer is provided with outside ceramic heater 2.
Further, temperature sensor 10 is thermocouple.
Further, 10 be armoured thermocouple.
Temperature controller 8 controls 9 on-off of A.C. contactor according to the temperature signal of the measurement temperature of temperature sensor 10, to control
Whether ceramic heater 1 processed heats, the final thermostatic control realized to temperature in 1 tank of fused salt tank.
A kind of fused salt heating means use fused salt heating device, and specific step is as follows：
Step 1 first checks for heater circuit 3, guarantees to open inlet valve 5 without broken string, drain conditions, built-in to fused salt tank 1
Enter fused salt, be then turned off inlet valve 5, and blow-off valve 6 is kept to close, opens exhaust valve 4；
The temperature setting of temperature controller 8 is to open power supply 7, pass through ceramic heat not less than fused salt melting temperature by step 2
Device 2 heats fused salt tank 1；After temperature in fused salt tank 1 reaches 8 set temperature of temperature controller, it is disconnected that temperature controller 8 controls A.C. contactor 9
It opens, ceramic heater 2 stops heating；When temperature is down to set temperature or less in fused salt tank 1, temperature controller 8 controls ac contactor
Device 9 is closed, and ceramic heater 2 is begun to warm up；
After step 3, heating, power supply 7 is first closed, is cooled to room temperature to temperature in fused salt tank 1, turns off exhaust valve 4.
Fused salt heating device of the present invention, the beneficial effect is that：
(1) fused salt heating device of the present invention, the method for taking contactless, external heating, is generated heat by ceramic heater
And the mode thermally conductive to tank body wall surface, heat fused salt in fused salt tank；This method heating is reliable, at low cost, simple, conveniently tears open
It unloads, and heat is distributed in even tube wall, heating effect is good；
(2) fused salt heating device of the present invention, the collected temperature data synchronous transfer of temperature sensor, can to temperature controller
The temperature of fused salt in real-time detection tank, and feedback regulation is carried out to ceramic heater by temperature controller and A.C. contactor, accomplish
Temperature of molten salt accurately controls in fused salt tank, enhances the reliability of system；
(3) fused salt heating device of the present invention is more suitable for the heating of a small amount of fused salt since its rate of heat addition is slower.One
Determine the range for extending fused salt application in degree, improve engineer application feasibility, there is directive significance to fused salt fusion process.
Claims (7)
1. fused salt heating device, which is characterized in that including fused salt tank (1), fused salt tank (1) outer cover is equipped with ceramic heater
(2), the fused salt tank (1) is connected electric heater unit (3) with the ceramic heater (2) by conducting wire, fused salt tank (1) top
Portion is respectively arranged with exhaust valve (4) and inlet valve (5), and fused salt tank (1) bottom is provided with blow-off valve (6).
2. fused salt heating device according to claim 1, which is characterized in that the electric heater unit (3) includes power supply
(7), the power supply (7) is separately connected temperature controller (8) by conducting wire, and the temperature controller (8) is separately connected exchange by conducting wire and connects
Tentaculum (9) and temperature sensor (10), the A.C. contactor (9) connect the ceramic heater (2), the temperature by conducting wire
It spends sensor (10) and the fused salt tank (1) is connected by conducting wire.
3. fused salt heating device according to claim 2, which is characterized in that the fused salt tank (1) and ceramic heater (2)
Between be provided with insulating layer.
4. fused salt heating device according to claim 2, which is characterized in that be provided with outside the ceramic heater (2)
Insulating layer.
5. fused salt heating device according to claim 2, which is characterized in that the temperature sensor (10) is thermocouple.
6. fused salt heating device according to claim 5, which is characterized in that the temperature sensor (10) is armouring thermoelectricity
It is even.
7. fused salt heating means, which is characterized in that add using fused salt described in any one of claim 2-6 claim
Thermal, specific step is as follows：
Step 1 first checks for heater circuit (3), guarantees to open inlet valve (5) without broken string, drain conditions, into fused salt tank (1)
It is packed into fused salt, is then turned off inlet valve (5), and blow-off valve (6) is kept to close, is opened exhaust valve (4)；
Step 2 sets heating temperature by temperature controller (8), and heating temperature is not less than fused salt melting temperature, opens power supply (7)；
After step 3, heating, power supply (7) first are closed, is cooled to room temperature to fused salt tank (1) interior temperature, turns off exhaust valve
(4)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610139.6A CN108917177A (en) | 2018-06-13 | 2018-06-13 | Fused salt heating device and fused salt heating means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610139.6A CN108917177A (en) | 2018-06-13 | 2018-06-13 | Fused salt heating device and fused salt heating means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108917177A true CN108917177A (en) | 2018-11-30 |
Family
ID=64420805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810610139.6A Pending CN108917177A (en) | 2018-06-13 | 2018-06-13 | Fused salt heating device and fused salt heating means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108917177A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963211A (en) * | 2021-03-26 | 2021-06-15 | 华能江阴燃机热电有限责任公司 | Steam turbine of cogeneration system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2506026A1 (en) * | 1974-07-31 | 1976-03-18 | Ver Volkseigener Betriebe Haus | DEVICE FOR RECEIVING OBJECTS MADE OF GLASS, VITRO-CRYSTALLINE OR ROCK, TO BE CHEMICALLY REINFORCED BY SURFACE TREATMENT |
| CN203274568U (en) * | 2013-03-05 | 2013-11-06 | 深圳市爱能森科技有限公司 | Fused salt tank |
| CN107166483A (en) * | 2017-06-30 | 2017-09-15 | 李俊凯 | One kind utilizes paddy electricity electromagnetism static state heating melting molten salt energy-storage heating system |
-
2018
- 2018-06-13 CN CN201810610139.6A patent/CN108917177A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2506026A1 (en) * | 1974-07-31 | 1976-03-18 | Ver Volkseigener Betriebe Haus | DEVICE FOR RECEIVING OBJECTS MADE OF GLASS, VITRO-CRYSTALLINE OR ROCK, TO BE CHEMICALLY REINFORCED BY SURFACE TREATMENT |
| CN203274568U (en) * | 2013-03-05 | 2013-11-06 | 深圳市爱能森科技有限公司 | Fused salt tank |
| CN107166483A (en) * | 2017-06-30 | 2017-09-15 | 李俊凯 | One kind utilizes paddy electricity electromagnetism static state heating melting molten salt energy-storage heating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963211A (en) * | 2021-03-26 | 2021-06-15 | 华能江阴燃机热电有限责任公司 | Steam turbine of cogeneration system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181130 |
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| RJ01 | Rejection of invention patent application after publication |