CN203874765U - Heating and cooling system taking fused salt as heat carrier - Google Patents
Heating and cooling system taking fused salt as heat carrier Download PDFInfo
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- CN203874765U CN203874765U CN201420165139.7U CN201420165139U CN203874765U CN 203874765 U CN203874765 U CN 203874765U CN 201420165139 U CN201420165139 U CN 201420165139U CN 203874765 U CN203874765 U CN 203874765U
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Abstract
The utility model relates to a heating and cooling system taking fused salt as a heat carrier for controlling the temperature of a reaction kettle. The heating and cooling system taking fused salt as a heat carrier comprises a fused salt heating system and a fused salt cooling system, wherein the fused salt heating system comprises a high-temperature fused salt tank for storing fused salt, a fused salt pump for conveying fused salt and a heater for heating the fused salt; the high-temperature fused salt tank, the fused salt pump, the heater and the reaction kettle are sequentially communicated; the reaction kettle is then connected with the high-temperature fused salt tank to form a high-temperature circulation loop of fused salt; the fused salt cooling system comprises a low-temperature fused salt tank for storing fused salt and a circulation cooling system which enables the low-temperature fused salt tank to be in a constant temperature range; the low-temperature fused salt tank and the high-temperature fused salt tank are connected by a pipeline to form a low-temperature circulation pipeline. The heating and cooling system taking fused salt as the heat carrier, which is provided by the utility model, has the advantages of simple structure, convenience in operation, heat transfer uniformity and easiness in accurate temperature control, can be operated at high temperature above 350 DEG C, and belongs to the technical field of heating and cooling of chemical engineering processes.
Description
Technical field
The utility model relates to a kind of heating and cooling system of chemical process, particularly a kind of taking fused salt as thermophore, for reactor being carried out to the heating and cooling system that temperature is accurately controlled at chemical process.
Background technology
In chemical process, for example, at the full aromatic copolyesters of thermoplasticity (TLCP), naphthols, phthalic anhydride, acrylic acid, methacrylic acid, maleic anhydride, in the production process of melamine, maximum temperature is all more than 350 DEG C, in course of reaction, for reducing the temperature difference inside and outside reactor, maximum possible is avoided reactor interior generation coking carbonization or is produced other unnecessary side reaction, reaction process all requires high-precision temperature control, therefore in most cases, in order to control preferably the intensification temperature-fall period of reaction process, all need to adopt heating medium for high temperature to heat cooling down operation.
Thermophore for chemical industry mainly contains the media such as hot-air, water, steam, organic conduction oil, mercury, fused salt.The temperature range of water and steam application is wider, just the pressure of steam must be brought up to 8.0MPa and could meet technological requirement above but water vapour reaches 300 DEG C of above temperature, and use procedure is very high to the performance requirement of equipment; Hot-air also can obtain very high operating temperature, but heat transfer coefficient is very little, transmits the heat transfer area that less caloric requirement is larger; Mercury can be worked at very high temperature, and mobile performance is better, but because mercury has severe toxicity and use cost is very high, thereby application process is restricted; The general maximum operation (service) temperature of organic conduction oil is 320 DEG C of left and right, in the time that serviceability temperature exceedes its film temperature, just start carbonization, when serious, can block pipeline, and fused salt maximum operation (service) temperature is more than 500 DEG C, thermal capacitance is high, under normal pressure, just can realize heating and cooling under high-temperature condition operation, therefore, in temperature when more than 350 DEG C, with respect to other thermophore, fused salt has obvious advantage.
At present with respect to the heating and cooling system taking fused salt as thermophore, with steam, organic conduction oil is that the heating and cooling system application of thermophore is comparatively ripe, patent JP1315336A, CN1252865A, CN1528507 discloses a kind of steam heating device, this device is by controlling the inner loop of Steam Heating part steam, can high-precision adjusting heating-up temperature, be particularly suitable for being used under the lower temperature conditions in 100 DEG C of left and right, patent CN100541065C discloses a kind of cooling device of heating that carries out low temperature thermophore in the circulatory system of a sealing, this device is by reactor, heater and cooler are connected in series in the heating cooling down operation of realizing temperature in pipeline, patent CN100363097C discloses the loop heating system that a kind of mixture that adopts biphenyl Biphenyl Ether is organic heat-carrying agent, this system can and easily realize the accurate control of temperature for the heat supply of complication system, but the serviceability temperature of organic heat-carrying agent is generally within the scope of 240～360 DEG C, and generally under higher operating pressure, move in the time exceeding more than 350 DEG C, when actual use, need adopt high-tension apparatus, application process is subject to restriction to a certain extent.
Patent CN20206383854U discloses a kind of fused salt circulating heat exchange system for benzene anhydride oxidized reaction, this system adopts the method for fused salt and water vapour direct heat transfer to carry out the control of reaction temperature, there is the larger temperature difference in water vapour and salt melting system, therefore this system is only applicable in the system of strong heat release, and be not suitable for need to heat up simultaneously and the working condition of the operation of lowering the temperature under.
In Chemical Manufacture operation, for example adopt in the process of the full aromatic copolyesters of batch process production thermoplasticity (TLCP), after a collection of material reaction finishes, the temperature of thermophore heating reactor is higher, in order to avoid, the temperature difference inside and outside reactor is too high there is coking carbonization, or produce other unnecessary side reaction or the material newly adding and thermophore and differ compared with large and equipment is caused to damage, need to take a long time and wait for when thermophore is reduced to uniform temperature, just can add next group material, the production capacity of equipment is very restricted.
Therefore, for the restriction of prior art, exploitation one has concurrently conducts heat evenly, and heating and cooling are rapid, and temperature is easy to accurately control advantage, and heating and cooling system that can high temperature operates more than 350 DEG C seems particularly necessary.
Utility model content
For the technical problem existing in prior art, the purpose of this utility model is: provide a kind of and conduct heat evenly, heating and cooling are rapid, and temperature is easy to accurate control, the heating and cooling system taking fused salt as thermophore that can high temperature operates more than 350 DEG C.
In order to achieve the above object, the utility model adopts following technical scheme:
A heating cooling means taking fused salt as thermophore, carries out temperature control to reactor; The heating cooling down operation of fused salt is divided into two systems, and one is the Molten salt heating system for carrying high-temperature molten salt, and one is the fused salt cooling system for transporting low temperature fused salt; Molten salt heating system is connected in series with reactor, directly reactor is carried out to temperature control; Fused salt cooling system is connected in series with Molten salt heating system, and high-temperature molten salt is carried out to temperature control.
Fused salt cooling system is to the adjustable low-temperature molten salt of Molten salt heating system input temp, and low-temperature molten salt mixes with high-temperature molten salt, realizes the cooling control to high-temperature molten salt; Molten salt heating system also heats or preservation and controlling high-temperature molten salt.
In the time that reactor need to be rapidly heated, the heater starting in Molten salt heating system heats high-temperature molten salt, and high-temperature molten salt carries out heat exchange with reactor again; In the time that reactor need to heat up at a slow speed or be incubated, heater starting in Molten salt heating system heats high-temperature molten salt, fused salt cooling system not timing is simultaneously inputted low-temperature molten salt to Molten salt heating system, reduces the temperature of high-temperature molten salt, and high-temperature molten salt carries out heat exchange with reactor again; In the time that reactor needs fast cooling, heater in Molten salt heating system cuts out, and fused salt cooling system continues to Molten salt heating system input low-temperature molten salt simultaneously, and low-temperature molten salt mixes with high-temperature molten salt, high-temperature molten salt fast cooling, high-temperature molten salt carries out heat exchange with reactor again.In the time that reactor need to heat, heater starting in Molten salt heating system, heater carries out warming temperature to thermophore fused salt, in the time that reactor needs are cooling, high-temperature molten salt in low-temperature molten salt and Molten salt heating system in fused salt cooling system carries out direct hybrid cooling, and then realizes the accurate control to temperature of reaction kettle.
The minimum temperature of low-temperature molten salt is 180 DEG C, and the maximum temperature of high-temperature molten salt is 600 DEG C; Described fused salt is made up of one or more mixing in potassium nitrate, natrium nitrosum and sodium nitrate.
Fused salt comprises potassium nitrate, natrium nitrosum and sodium nitrate; The mass percent of potassium nitrate is 53%, the mass percent of natrium nitrosum is 40%, the mass percent of sodium nitrate is 7%, and the fusing point of fused salt is 142 DEG C.
A heating and cooling system taking fused salt as thermophore, carries out temperature control to reactor, and it comprises Molten salt heating system and fused salt cooling system; Molten salt heating system comprises: be used for storing the high temperature melting salt cellar of fused salt, the heater that carries out the pump for liquid salts of fused salt transmission and fused salt is heated; High temperature melting salt cellar, pump for liquid salts, heater and reactor are communicated with successively, and reactor joins and forms the high temperature circulation loop of fused salt with high temperature melting salt cellar again; Fused salt cooling system comprises: be used for storing the low-temperature molten salt tank of fused salt and make the constant circulating cooling system in a temperature range of low-temperature molten salt tank; Low-temperature molten salt tank and high temperature melting salt cellar are linked to be the low-temperature circulating loop of fused salt by pipeline.When temperature of molten salt when fluctuation in low-temperature molten salt tank, the temperature control system in low-temperature molten salt tank starts automatically, circulating cooling system by the temperature constant in low-temperature molten salt tank in certain temperature range.Heater is electric heater unit or heating furnace.
In low-temperature molten salt tank, be provided with chuck or inner coil pipe, chuck or inner tube dish access circulating cooling system, circulating cooling system passes into cooling medium.
Cooling medium is air, conduction oil or steam.Be preferably conduction oil or steam.
A heating and cooling system taking fused salt as thermophore, it also comprises a three-way control valve being arranged between heater and reactor, the other end of three-way control valve and low-temperature molten salt tank join; The setting height(from bottom) of low-temperature molten salt tank is higher than high temperature melting salt cellar, and the sidewall of low-temperature molten salt tank is provided with overfall, and one end of overfall and overflow line joins, and the other end of high temperature melting salt cellar and overflow line joins; The bottom of low-temperature molten salt tank connects one end of discharge pipe line, and the other end of high temperature melting salt cellar and discharge pipe line joins, and controlled valve is set in discharge pipe line.
Fused salt cooling system comprises the low-temperature molten salt pump with variable-frequency motor; Low-temperature molten salt tank, low-temperature molten salt pump and high temperature melting salt cellar join successively; The setting height(from bottom) of high temperature melting salt cellar is higher than low-temperature molten salt tank, and the sidewall of high temperature melting salt cellar is provided with overfall, and one end of overfall and overflow line joins, and the other end of low-temperature molten salt tank and overflow line joins; The bottom of high temperature melting salt cellar connects one end of discharge pipe line, and the other end of low-temperature molten salt tank and discharge pipe line joins, and controlled valve is set in discharge pipe line.
Generally speaking, the utlity model has following advantage: simple in structure, easy to operate, conduct heat evenly, temperature is easy to accurate control, can more than 350 DEG C, operates by high temperature.
1. the utlity model has the induction system of high-temperature molten salt and the induction system of low-temperature molten salt, (or insulation) and cooling operation can heat up to system simultaneously, the elasticity of the adjustable operation of temperature is large, is easier to that the temperature of complication system is carried out to accurate adjusting and controls.
2. the utlity model has the induction system of low-temperature molten salt, therefore the intensification of reactor can be from low temperature, reduced the inside and outside temperature difference of reactor, can maximum possible avoid causes the coking carbonization problem of system material or produces other unnecessary side reaction because reactor internal-external temperature difference is excessive.
3. the utility model is by high-temperature molten salt and the direct combination cooling of low-temperature molten salt, low-temperature molten salt carries out cooling method with cooling medium, can avoid high-temperature molten salt and cooling medium directly to carry out exchange heat, and then can select the operation that directly cools of the cooling medium such as the conduction oil of lower film temperature and the water vapour of low-pressure, reduce investment and the operating cost of system.
4. the utility model use fused salt is thermophore, with respect to the form that adopts steam and conduction oil, under normal pressure, just can realize the more than 350 DEG C heating and cooling under high-temperature condition operation, therefore, adopt low pressure vessel just can meet instructions for use, can reduce the manufacturing cost of equipment.
Brief description of the drawings
Fig. 1 is the schematic diagram of a kind of heating and cooling system taking fused salt as thermophore of the utility model the first embodiment.
Fig. 2 is the schematic diagram of a kind of heating and cooling system taking fused salt as thermophore of the utility model the second embodiment.
Fig. 3 is the schematic diagram of the circulating cooling system of the low-temperature molten salt tank taking conduction oil as cooling medium.
Fig. 4 is the schematic diagram of the circulating cooling system of the low-temperature molten salt tank taking water vapour as cooling medium.
Wherein, 1 is reactor, 2 is heater, 3 is high temperature melting salt cellar, 4 is low-temperature molten salt tank, 4a is inner coil pipe, 5 is pump for liquid salts, 6 is three-way control valve, 7 is overflow line, 8 is discharge pipe line, 9 is pipeline, 10 is pipeline, 11 is pipeline, 12 is pipeline, 13 is pipeline, 14 is circulating pump, 15 is the heater of circulating cooling system, 16 is the cooler of circulating cooling system, 17 is three-way control valve, 18 is pipeline, 19 is pipeline, 20 is return piping, 21 is back with water inlet line, 22 is control valve, 23 is high-temperature steam discharge pipe line, 24 add pipeline for high-temperature steam, 25 is cooling water interpolation pipeline, 26 is high-temperature steam bag, 27 is the low-temperature molten salt pump with variable-frequency motor.
Detailed description of the invention
Shown in accompanying drawing, as an example of the production process of the synthetic full aromatic copolyesters of a kind of high heat-resisting thermoplasticity (TLCP) of batch process example, the utility model is conducted further description.
Embodiment mono-
As shown in Figure 1, heating and cooling system taking fused salt as thermophore comprises reactor 1, heater 2, high temperature melting salt cellar 3, low-temperature molten salt tank 4, pump for liquid salts 5, fused salt three-way control valve 6 and the various pipe arrangements that reactor 1, heater 2, high temperature melting salt cellar 3, low-temperature molten salt tank 4, pump for liquid salts 5, three-way control valve 6 are coupled together, and be formed with the high temperature circulation loop (containing pipeline 12,13) and low-temperature circulating loop (containing overflow line 7, pipeline 11,12) of closed cycle system by the distribution of three-way control valve 6.
The installation site of low-temperature molten salt tank 4 is higher than the installation site of high temperature melting salt cellar 3, the bottom of low-temperature molten salt tank 4 is provided with discharge pipe line 8, can be by opening the controlled valve on discharge pipe line 8 when system-down, fused salt in low-temperature molten salt tank 4 is discharged in high temperature melting salt cellar 3, and is incubated operation in high temperature melting salt cellar 3; The side of low-temperature molten salt tank 4 is provided with overflow line 7, stores in advance a certain amount of fused salt when start in low-temperature molten salt tank 4, and its liquid level is concordant with the height of the overfall of low-temperature molten salt tank 4.
The inside of low-temperature molten salt tank 4 is provided with the inner coil pipe 4a for carrying out heat exchange, and this inner coil pipe 4a is by pipeline 9,10 access circulating cooling systems.
Fig. 3 is the schematic diagram of the circulating cooling system of the low-temperature molten salt tank taking conduction oil as cooling medium, this circulating cooling system comprises the equipment such as heater 15, the cooler 16 of circulating cooling system of circulating pump 14, inner coil pipe 4a, three-way control valve 17, circulating cooling system, and by pipeline connected these equipment 9,10,18,19.The heater 15 of circulating cooling system can be electric heater, also can be for to carry the high temperature heat conductive oil of coming from process units heating furnace, thermal source when the interior solid fused salt of low-temperature molten salt tank 4 melts when it can be used as start, maintains the constant thermal source of the interior temperature of molten salt of low-temperature molten salt tank 4 while also can be used as normal production; The cooler 16 of circulating cooling system is connected with and carries out the oil cooled back with water inlet line 21 of heat conduction and return piping 20, in the time that the temperature of low-temperature molten salt tank 4 changes, by the automatic distribution regulating action of three-way control valve 17, be distributed in the heat conduction oil mass in the heater 15 of circulating cooling system and the cooler 16 of circulating cooling system, the temperature of control system conduction oil, and then the temperature constant of controlling low-temperature molten salt tank 4 is in certain scope.
Fig. 4 is the schematic diagram of the circulating cooling system of the low-temperature molten salt tank taking water vapour as cooling medium, and this circulating cooling system comprises the pipeline 9,10 of the inner coil pipe 4a of high-temperature steam bag 26, low-temperature molten salt tank cold 4 and contact high-temperature steam bag 26, inner coil pipe 4a.On high-temperature steam bag 26, be connected with cooling water and add pipeline 25, high-temperature steam and add pipeline 24 and high-temperature steam discharge pipe line 23, on these three pipelines, be all provided with corresponding control valve 22.Cooling water adds pipeline 25 and is used for the cooling water inflow that the cooling of lasting replenishment system consumes, and the quantity of circulating water of system is remained within the scope of certain liquid level.High-temperature steam adds pipeline 24, is used for supplementing fresh quantity of steam in the time that the pressure of high-temperature steam bag 26 is on the low side; High-temperature steam discharge pipe line 23 is used for discharging unnecessary quantity of steam in the time that the pressure of high-temperature steam bag 26 is higher.In the time that low-temperature molten salt tank 4 temperature change, by the quantity of steam of control inputs and output high-temperature steam bag 26, pressure and the water temperature of controlling high-temperature steam bag 26 maintain in certain temperature range, and then control the temperature constant of low-temperature molten salt tank 4 in certain scope.
In the building-up process of TLCP, as shown in Figure 1, the temperature constant of low-temperature molten salt tank 4,190 DEG C of left and right, is controlled at the temperature of high temperature melting salt cellar 3 in the temperature range of 200～400 DEG C.In the time that the material in reactor 1 carries out polymerisation, need in 2～8 hours, slowly the temperature of reaction mass be brought up to 250 DEG C from 200 DEG C, and then be warmed up to rapidly 290～320 DEG C, and 320 DEG C of constant a period of times, then reaction temperature is elevated to 360 DEG C slowly.
In rapid heating condition, heater 2 in Molten salt heating system is opened, three-way control valve 6 is converted to a side that flows to reactor 1, high-temperature molten salt is through the transmission of pump for liquid salts 5, be sent to by high temperature melting salt cellar 3, heater 2 in the chuck of reactor 1 and heat up, after intensification completes, fused salt flows out in the chuck of reactor 1, flow back in high temperature melting salt cellar 3 through pipeline 13, in the process of intensification at a slow speed or constant temperature, for eliminating the too high impact that heats up of 2 moments of heater, the unlatching that three-way control valve 6 can not timings imports a part of low-temperature molten salt and carry out temperature adjusting in high temperature melting salt cellar 3 from low-temperature molten salt tank 4, after the interior material polymerization of reactor 1 completes, after below the temperature of reactor 1 need to being dropped to fast to 210 DEG C, add next group reaction mass, now heater 2 heating are closed, high-temperature molten salt is through the transmission of pump for liquid salts 5, through high temperature melting salt cellar 3, heater 2, undertaken automatically distributing after adjusting by three-way control valve 6, a certain amount of high-temperature molten salt of regulation output, enter into low-temperature molten salt tank 4 through pipeline 11, with low-temperature molten salt tank in low-temperature molten salt direct contact heat transfer after, overflow line 7 overflows by low-temperature molten salt tank 4 are got back in high-temperature molten salt tank 3, because the high-temperature molten salt in low-temperature molten salt and the high temperature melting salt cellar 3 of overflow line 7 overflows carries out rapid mixing cooling, temperature in reactor 1 can drop to the temperature of 210 DEG C of left and right in a short period of time, now can carry out the operation that adds of next group material.When low-temperature molten salt in high-temperature molten salt and low-temperature molten salt tank carries out direct heat transfer, the circulating cooling system of low-temperature molten salt tank starts to start, and carries out cooling operation automatically, makes the temperature constant of low-temperature molten salt tank 4 within the scope of one.
The selection of the circulating cooling system of the low-temperature molten salt tank shown in Fig. 3 or Fig. 4 can be chosen flexibly according to the existing outfit condition of process units.
Embodiment bis-
As shown in Figure 2, heating and cooling system taking fused salt as thermophore comprises reactor 1, heater 2, high temperature melting salt cellar 3, pump for liquid salts 5, low-temperature molten salt tank 4, low-temperature molten salt pump 27 with variable-frequency motor and by reactor 1, heater 2, high temperature melting salt cellar 3, pump for liquid salts 5, low-temperature molten salt tank 4, the various pipelines that couple together with the low-temperature molten salt pump 27 of variable-frequency motor, and is formed with the high temperature circulation loop (containing pipeline 12,13) and low-temperature circulating loop (containing overflow line 7 and pipeline 11) of closed cycle system.
The installation site of high temperature melting salt cellar 3 is higher than the installation site of low-temperature molten salt tank 4, the bottom of high temperature melting salt cellar 3 is provided with discharge pipe line 8, can be by opening the controlled valve on discharge pipe line 8 when system-down, fused salt in high temperature melting salt cellar 3 is discharged in low-temperature molten salt tank 4, and is incubated operation in low-temperature molten salt tank 4; The side of high temperature melting salt cellar 3 is provided with overflow line 7, stores in advance a certain amount of fused salt when start in high temperature melting salt cellar 3, and its liquid level is concordant with the height of the overfall of high temperature melting salt cellar 3.
The inside of low-temperature molten salt tank 4 is provided with the inner coil pipe 4a for carrying out heat exchange, and this inner coil pipe 4a is by pipeline 9,10 and access circulating cooling system.
In the building-up process of TLCP, as shown in Figure 2, the temperature constant of low-temperature molten salt tank 4,190 DEG C of left and right, is controlled at the temperature of high temperature melting salt cellar 3 in the temperature range of 200～400 DEG C.In the time that the material in reactor 1 carries out polymerisation, need in 2～8 hours, slowly the temperature of reaction mass be brought up to 250 DEG C from 200 DEG C, and then be warmed up to rapidly 290～320 DEG C, and 320 DEG C of constant a period of times, then reaction temperature is elevated to 360 DEG C slowly.
In the process being rapidly heated, heater 2 is opened, and high-temperature molten salt is through the transmission of pump for liquid salts 5, be sent to by high temperature melting salt cellar 3, heater 2 in the chuck of reactor 1 and heat up, after intensification completes, fused salt flows out in the chuck of reactor 1, flow back in high temperature melting salt cellar 3 through pipeline 13, in the process of intensification at a slow speed or constant temperature, for eliminating the too high impact that heats up of 2 moments of heater, low-temperature molten salt pump 27 with variable-frequency motor can be adjusted the rotating speed of oneself motor, and the unlatching of not timing imports a part of low-temperature molten salt and carry out temperature adjusting in high temperature melting salt cellar 3 from low-temperature molten salt tank 4, after the interior material polymerization of reactor 1 completes, after the temperature of reactor 1 need to being dropped to 210 DEG C of left and right fast, add next group reaction mass, now heater 2 heating are closed, high-temperature molten salt carries out self circulation under heating condition not in high temperature circulation loop, simultaneously, low-temperature molten salt pump 27 with variable-frequency motor can be adjusted the rotating speed of oneself motor, a certain amount of low-temperature molten salt of regulation output, enter into high temperature melting salt cellar 3 through pipeline 11, with high temperature melting salt cellar 3 in fused salt direct contact heat transfer after, overflow line 7 overflows by high temperature melting salt cellar 3 are got back in low-temperature molten salt tank 4, because the high-temperature molten salt in low-temperature molten salt and the high temperature melting salt cellar 3 exported through the pipeline 11 of low-temperature molten salt output carries out rapid mixing cooling, temperature in reactor 1 can drop to the temperature of 210 DEG C in a short period of time, now can carry out the operation that adds of next group material.When fused salt in high-temperature molten salt and low-temperature molten salt tank carries out direct heat transfer, circulating cooling system starts to start, and carries out cooling operation automatically, makes low-temperature molten salt tank 4 constant in a temperature range.
The selection of the circulating cooling system of the low-temperature molten salt tank shown in Fig. 3 or Fig. 4 can be chosen flexibly according to the existing outfit condition of process units.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (5)
1. the heating and cooling system taking fused salt as thermophore, carries out temperature control to reactor, it is characterized in that: it comprises Molten salt heating system and fused salt cooling system;
Molten salt heating system comprises: be used for storing the high temperature melting salt cellar of fused salt, the heater that carries out the pump for liquid salts of fused salt transmission and fused salt is heated; High temperature melting salt cellar, pump for liquid salts, heater and reactor are communicated with successively, and reactor joins and forms the high temperature circulation loop of fused salt with high temperature melting salt cellar again;
Fused salt cooling system comprises: be used for storing the low-temperature molten salt tank of fused salt and make the constant circulating cooling system in a temperature range of low-temperature molten salt tank;
Low-temperature molten salt tank and high temperature melting salt cellar are linked to be the low-temperature circulating loop of fused salt by pipeline.
2. according to a kind of heating and cooling system taking fused salt as thermophore claimed in claim 1, it is characterized in that: in described low-temperature molten salt tank, be provided with chuck or inner coil pipe, chuck or inner tube dish access circulating cooling system, circulating cooling system passes into cooling medium.
3. according to a kind of heating and cooling system taking fused salt as thermophore claimed in claim 2, it is characterized in that: described cooling medium is air, conduction oil or steam.
4. according to a kind of heating and cooling system taking fused salt as thermophore claimed in claim 1, it is characterized in that: it also comprises a three-way control valve being arranged between heater and reactor, the other end of three-way control valve and low-temperature molten salt tank join;
The setting height(from bottom) of low-temperature molten salt tank is higher than high temperature melting salt cellar, and the sidewall of low-temperature molten salt tank is provided with overfall, and one end of overfall and overflow line joins, and the other end of high temperature melting salt cellar and overflow line joins;
The bottom of low-temperature molten salt tank connects one end of discharge pipe line, and the other end of high temperature melting salt cellar and discharge pipe line joins, and controlled valve is set in discharge pipe line.
5. according to a kind of heating and cooling system taking fused salt as thermophore claimed in claim 1, it is characterized in that: described fused salt cooling system comprises the low-temperature molten salt pump with variable-frequency motor; Low-temperature molten salt tank, low-temperature molten salt pump and high temperature melting salt cellar join successively;
The setting height(from bottom) of high temperature melting salt cellar is higher than low-temperature molten salt tank, and the sidewall of high temperature melting salt cellar is provided with overfall, and one end of overfall and overflow line joins, and the other end of low-temperature molten salt tank and overflow line joins;
The bottom of high temperature melting salt cellar connects one end of discharge pipe line, and the other end of low-temperature molten salt tank and discharge pipe line joins, and controlled valve is set in discharge pipe line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420165139.7U CN203874765U (en) | 2014-04-04 | 2014-04-04 | Heating and cooling system taking fused salt as heat carrier |
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| CN201420165139.7U CN203874765U (en) | 2014-04-04 | 2014-04-04 | Heating and cooling system taking fused salt as heat carrier |
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| CN203874765U true CN203874765U (en) | 2014-10-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933916A (en) * | 2014-04-04 | 2014-07-23 | 金发科技股份有限公司 | Heating-cooling method and heating-cooling system utilizing fused salt as carrier |
| CN106052160A (en) * | 2016-07-11 | 2016-10-26 | 江苏爱能森科技有限公司 | Intelligent molten salt heating system |
| CN106918028A (en) * | 2017-04-26 | 2017-07-04 | 安徽瑞邦生物科技有限公司 | Fused salt circulated heat recovery system |
| CN107189766A (en) * | 2017-06-08 | 2017-09-22 | 中国科学院上海应用物理研究所 | Prepared by a kind of inert environments fused salt, the apparatus and method of transhipment |
-
2014
- 2014-04-04 CN CN201420165139.7U patent/CN203874765U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103933916A (en) * | 2014-04-04 | 2014-07-23 | 金发科技股份有限公司 | Heating-cooling method and heating-cooling system utilizing fused salt as carrier |
| CN106052160A (en) * | 2016-07-11 | 2016-10-26 | 江苏爱能森科技有限公司 | Intelligent molten salt heating system |
| CN106052160B (en) * | 2016-07-11 | 2018-05-15 | 江苏爱能森科技有限公司 | A kind of intelligence Molten salt heating system |
| CN106918028A (en) * | 2017-04-26 | 2017-07-04 | 安徽瑞邦生物科技有限公司 | Fused salt circulated heat recovery system |
| CN107189766A (en) * | 2017-06-08 | 2017-09-22 | 中国科学院上海应用物理研究所 | Prepared by a kind of inert environments fused salt, the apparatus and method of transhipment |
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