CN214332672U - Heat storage and exchange integrated steam superheating system - Google Patents
Heat storage and exchange integrated steam superheating system Download PDFInfo
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- CN214332672U CN214332672U CN202023213660.8U CN202023213660U CN214332672U CN 214332672 U CN214332672 U CN 214332672U CN 202023213660 U CN202023213660 U CN 202023213660U CN 214332672 U CN214332672 U CN 214332672U
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Abstract
The utility model discloses a heat accumulation heat transfer integration steam overheat system, include through line connection's electrical heating formula heat conduction oil furnace (10), heat accumulation heat transfer integrated device (20) and heat medium storage tank (30), electrical heating formula heat conduction oil furnace (10) can heat the conduction oil, heat accumulation heat transfer integrated device (20) outer joint steam input pipeline (21) and steam output line (22), the conduction oil in heat accumulation heat transfer integrated device (20) can heat the steam in heat accumulation heat transfer integrated device (20). The heat storage and exchange integrated device in the heat storage and exchange integrated steam superheating system has heat storage and exchange functions, adopts heat conduction oil as an intermediate heat medium, uses electric energy as a heat source to indirectly heat saturated steam, heats converter vaporization waste heat saturated steam into micro superheated steam for a steam pump of an RH vacuum refining furnace of a steel plant, and meets the requirement of an intermittent production steam system of the refining furnace.
Description
Technical Field
The utility model relates to a heat accumulation heat transfer integration steam overheat system.
Background
Steel enterprises often adopt a refining mode of vacuumizing by a steam jet pump to smelt clean steel, the steam jet pump needs superheated steam as a power source, and the production characteristic is a periodic intermittent operation mode.
Currently, the main sources of superheated steam used by steam jet pumps are: first, a rapid boiler using fuel combustion as a heat source generates superheated steam. And secondly, producing superheated steam by adopting medium-temperature medium-pressure steam and steam with parameters above in the power plant through temperature reduction and pressure reduction. Thirdly, saturated steam is produced by utilizing the production process of a steel converter and an electric furnace, and superheated steam is prepared by heating. Various technologies and products are available for carrying out superheating treatment on converter and electric furnace self-produced saturated steam, such as: gas-fired steam superheating, micro-superheating heat storage systems, electric superheating, electromagnetic superheating, molten salt heat storage superheating, heat conduction oil heat storage superheating and the like.
The rapid boiler and gas-fired steam superheating using the traditional fuel combustion as a heat source has the defects of high environmental protection limitation on pollutant emission, complex heat source system, high initial investment, huge equipment, long starting time, serious heat energy waste during the intermission, relatively low heat efficiency and the like.
The temperature reduction, pressure reduction and overheating which take medium-temperature medium-pressure steam and above parameter steam in a power plant as a heat source are influenced by production factors of an upstream power plant, high-quality heat energy is degraded and utilized, and the system energy efficiency is low. Meanwhile, the intermittent production system of the refining furnace puts high requirements on the operation and the load control of a power plant.
The electric energy is used as a heat source to directly heat the saturated steam, an intermittent production system of the refining furnace and the characteristics of an electric heating body are not considered, the electric heating body and the saturated steam exchange heat no matter a resistance heating mode or an electromagnetic heating mode is adopted, and the accurate control of the temperature of the superheated steam is difficult to realize by a mode of directly heating the saturated steam by the electric heating body for the intermittent steam-using degree of the refining furnace. When the refining furnace uses steam, the electric heating body is scoured and cooled by the steam with a certain speed. When the refining furnace is stopped instantly, the electric heating body can not be cooled under the condition of no steam circulation and is in a dry-burning state, and the electric heating body is easy to burn when running for a long time in a resistance heating mode. Saturated steam carries liquid water more or less, and liquid water has certain hardness, and liquid water evaporates on the electric heating body surface, and hardness etc. remain on the electric heating body surface, and long-term use electric heating body surface scale deposit is serious, influences heat transfer efficiency. The service life of the electric heating body in the resistance heating mode is short, the replacement rate is high, the power consumption rate in the electromagnetic induction mode is increased, and the service life of the electric heating body is shortened.
The micro-superheat variable-pressure heat accumulator system taking the micro-superheat variable-pressure heat accumulator system as a heat source does not consider the fluctuation of the high-pressure steam pressure and the temperature of the heat accumulator and the working condition of the heat release tail end of the heat accumulator, and cannot accurately control the superheat degree of outlet steam or even meet the requirements of designated users.
The molten salt is used as an intermediate medium to indirectly heat saturated steam, an immersed heat exchanger is adopted, the heat exchange strength is low, and the accurate adjustment of the temperature of the superheated steam is difficult to realize. In addition, the molten salt has complex components, and the molten salt may contain some impurity salts, such as calcium carbonate, which may form heat scale on the surface of the heated pipe, thereby complicating the system or affecting the continuous service life of the system.
The mode of indirectly heating saturated steam by taking heat conduction oil as an intermediate medium and the mode of arranging the electric heater in the hot oil tank with a large volume are adopted, the flow velocity of the heat conduction oil in the hot oil tank cannot guarantee the flow velocity allowed by heat exchange of the heat conduction oil, and the surface heat exchange strength of the electric heater is low, so that the oil film on the surface of the electric heater is easy to crack due to the overtemperature. Meanwhile, the hot oil tank runs at normal pressure, and high-temperature heat conduction oil is easy to oxidize and deteriorate.
SUMMERY OF THE UTILITY MODEL
In order to supply steelmaking technology steam pump to use with converter vaporization waste heat saturated steam to little superheated steam conversion, the utility model provides a heat accumulation heat transfer integration steam superheating system, the heat accumulation heat transfer integrated device among this heat accumulation heat transfer integration steam superheating system has heat accumulation and heat transfer function concurrently, adopts the conduction oil as middle heat medium, uses the electric energy as the indirect heating saturated steam of heat source, supplies the use of steel mill RH vacuum refining furnace steam pump for little superheated steam with converter vaporization waste heat saturated steam heating, satisfies the steam system for the intermittent type formula production of refining furnace.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a heat accumulation heat transfer integration steam superheating system, includes through the electric heating formula heat conduction oil furnace, heat accumulation heat transfer integrated device and the heat medium storage tank of pipe connection, and electric heating formula heat conduction oil furnace can heat the conduction oil, and heat accumulation heat transfer integrated device connects steam input pipeline and steam output pipeline outward, and the conduction oil in the heat accumulation heat transfer integrated device can heat the steam in the heat accumulation heat transfer integrated device.
The heat conduction oil in the electric heating type heat conduction oil furnace can enter the heat storage and exchange integrated device, the heat conduction oil in the heat storage and exchange integrated device can enter the electric heating type heat conduction oil furnace, the heat conduction oil in the heat storage and exchange integrated device can also enter a heat medium storage tank, and the heat conduction oil in the heat medium storage tank can enter the heat storage and exchange integrated device; the heat storage and exchange integrated device is internally provided with an accommodating cavity and a heat exchange body, and a heat conduction oil inlet, a heat conduction oil outlet, a steam inlet, a steam outlet and a protective gas inlet are formed in the side wall of the heat storage and exchange integrated device.
The heat conduction oil inlet and the heat conduction oil outlet are communicated with the containing cavity, the steam inlet and the steam outlet are connected with the heat exchange body, the heat conduction oil inlet is located on the upper portion of the heat storage and exchange integrated device, and the heat conduction oil outlet is located on the lower portion of the heat storage and exchange integrated device.
The protective gas inlet is positioned at the upper part of the heat storage and exchange integrated device, a protective gas injection pipeline is connected outside the protective gas inlet, a regulating valve is arranged on the protective gas injection pipeline, and a first exhaust port and a second exhaust port are further arranged at the upper part of the heat storage and exchange integrated device.
The first exhaust port is externally connected with the first exhaust pipe, the first exhaust pipe is provided with a first valve, the second exhaust port is externally connected with the second exhaust pipe, the second exhaust pipe is provided with a safety valve, a gas phase space and a liquid phase space which are vertically arranged can be formed in a containing cavity of the heat storage and heat exchange integrated device, and the heat exchange body is located in the liquid phase space.
The heat conducting oil inlet comprises a first heat conducting oil inlet and a second heat conducting oil inlet, the outlet of the electric heating type heat conducting oil furnace is connected with the first heat conducting oil inlet of the heat accumulation and exchange integrated device through a first oil pipeline, the heat conducting oil outlet of the heat accumulation and exchange integrated device is communicated with the inlet of the electric heating type heat conducting oil furnace through a second oil pipeline, and the second oil pipeline is provided with a circulating oil pump and a second valve.
The heat accumulation and heat exchange integrated steam superheating system further comprises an oil injection main pipeline, a third valve, an oil injection pump and a fourth valve are sequentially arranged on the oil injection main pipeline, a second heat conduction oil inlet of the heat accumulation and heat exchange integrated device is connected with the oil injection main pipeline through a third oil transmission pipeline, and the joint of the third oil transmission pipeline and the oil injection main pipeline is located between the oil injection pump and the fourth valve.
The heat medium storage tank comprises a first oil inlet, a second oil inlet and a discharge port, the first oil inlet of the heat medium storage tank is communicated with a heat conduction oil outlet of the heat accumulation and heat exchange integrated device through a fourth oil pipeline, and a fifth valve is arranged on the fourth oil pipeline.
The second oil inlet of the heating medium storage tank is connected with the oil injection main pipeline through an oil injection branch line, the joint of the oil injection branch line and the oil injection main pipeline is positioned between the third valve and the oil injection pump, the oil injection branch line is provided with a sixth valve, the discharge port is externally connected with a discharge pipeline, and the discharge pipeline is provided with a seventh valve.
One end of a steam input pipeline is connected with a steam inlet of the heat storage and heat exchange integrated device, the other end of the steam input pipeline is connected with a main steam pipe of a steam heat accumulator of the converter vaporization system, one end of a steam output pipeline is connected with a steam outlet of the heat storage and heat exchange integrated device, and the other end of the steam output pipeline is connected with a steam distributing cylinder of the steam jet pump.
The utility model has the advantages that:
1. the heat conducting oil is used as an intermediate heat medium, and the saturated steam is indirectly heated by electric energy to become micro superheated steam. By utilizing the characteristics of low solubility and no corrosion of salt in the heat conduction oil, the scaling and corrosion of the surface of the electric adder of the heat conduction oil furnace and the oil side of the heat exchange body of the heat storage and heat exchange integrated steam superheating device are avoided, and the service life is shortened. The characteristic of strong storage capacity of the liquid-phase sensible heat of the heat conduction oil is utilized, the thermal inertia of the heater caused by the change of the electrical load is buffered, the small change of the surface temperature difference of the electric heater is ensured, the small alternating thermal stress is ensured, and the service life of the electric heater is prolonged.
2. The heat conduction oil flows into the furnace with a certain flow velocity by adopting a heat conduction oil forced circulation mode, the surface heat transfer of the electric heater is enhanced, and the oil film is ensured not to be cracked in an overtemperature way.
3. By utilizing the heat storage property of the heat transfer oil, the maximum electric load required by discontinuous steam supply in the RH vacuum refining smelting period is changed into the continuous average electric load in the period. The superheated steam is guaranteed to be output by supplying and storing heat conduction oil with large capacity, and the parameter requirements of vacuum refining on the superheated steam in the intermittent production of the air extracting pump are met.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic diagram of the heat storage and heat exchange integrated steam superheating system of the utility model.
Fig. 2 is a schematic view of an electrically heated, heat conductive oil furnace.
Fig. 3 is a schematic diagram of the heat storage and heat exchange integrated device.
Fig. 4 is a schematic view of a heating medium reservoir.
10. An electric heating type heat conduction oil furnace; 20. a heat storage and exchange integrated device; 30. a heating medium storage tank;
11. an electrical heating unit; 12. a power source;
21. a steam input line; 22. a steam output line; 23. an accommodating chamber; 24. a heat exchange body; 25. a heat transfer oil inlet; 26. a heat conducting oil outlet; 27. a steam inlet; 28. a steam outlet; 29. a shielding gas inlet; 210. a shielding gas injection line; 211. a first exhaust port; 212. a second exhaust port; 213. adjusting a valve; 214. a first exhaust pipe; 215. a first valve; 216. a second exhaust pipe; 217. a safety valve; 218. a gas phase space; 219. a liquid phase space;
31. a first oil inlet; 32. a second oil inlet; 33. a discharge port;
41. a first oil delivery line; 42. a second oil delivery line; 43. a third oil delivery line; 44. a fourth oil delivery line; 45. a circulating oil pump; 46. a second valve; 47. a fifth valve;
51. oiling a main pipeline; 52. a third valve; 53. an oil injection pump; 54. a fourth valve; 55. oiling branch lines; 56. a sixth valve; 57. a discharge line; 58. a seventh valve;
251. a first inlet for heat transfer oil; 252. and a second inlet for heat conducting oil.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A heat storage and exchange integrated steam superheating system comprises an electric heating type heat conduction oil furnace 10, a heat storage and exchange integrated device 20 and a heat medium storage tank 30 which are connected through pipelines, wherein the electric heating type heat conduction oil furnace 10 can heat conduction oil, the heat storage and exchange integrated device 20 is externally connected with a steam input pipeline 21 and a steam output pipeline 22, and the heat conduction oil in the heat storage and exchange integrated device 20 can heat steam in the heat storage and exchange integrated device 20, as shown in figures 1 to 4.
The utility model discloses in, heat accumulation heat transfer integrated device 20 has heat accumulation and heat transfer function simultaneously concurrently, and this heat accumulation heat transfer integration steam superheating system adopts the conduction oil as middle heat medium to the electric energy is as heat source indirect heating saturated steam, supplies the steel mill RH vacuum refining furnace steam pump to use for little superheated steam with converter vaporization waste heat saturated steam heating, satisfies the refining furnace intermittent type formula production steam system.
The utility model discloses a conduction oil utilizes its higher liquid phase operating temperature as middle heat medium, can regard as the heating medium of low pressure saturated steam. The characteristics of small solubility and no corrosion of salt in the heat conduction oil are utilized, and the reduction of the service life caused by scaling and corrosion of the surface of the electric adder of the heat conduction oil furnace and the oil side of the heat storage and heat exchange integrated steam superheating device is avoided. The characteristic of strong liquid phase sensible heat storage capacity is utilized to buffer the thermal inertia of the heater caused by the change of the electrical load, so that the surface temperature difference change of the electric heater is small, the alternating thermal stress is small, and the service life of the electric heater is prolonged.
In this embodiment, the heat transfer oil in the electric heating type heat conduction oil furnace 10 can enter the heat storage and exchange integrated device 20, the heat transfer oil in the heat storage and exchange integrated device 20 can enter the electric heating type heat conduction oil furnace 10, the heat transfer oil in the heat storage and exchange integrated device 20 can also enter the heat medium storage tank 30, and the heat transfer oil in the heat medium storage tank 30 can enter the heat storage and exchange integrated device 20.
In this embodiment, the heat storage and exchange integrated device 20 is a closed tank structure, the heat storage and exchange integrated device 20 contains the accommodating cavity 23 and the heat exchange body 24, the heat exchange body 24 is a serpentine elbow, the heat storage and exchange integrated device 20 is in an upright state, the heat exchange body 24 is located in the middle of the heat storage and exchange integrated device 20, and a heat conduction oil inlet 25, a heat conduction oil outlet 26, a steam inlet 27, a steam outlet 28 and a protective gas inlet 29 are arranged on the side wall of the heat storage and exchange integrated device 20.
In the present embodiment, the heat conducting oil inlet 25 and the heat conducting oil outlet 26 are both communicated with the accommodating cavity 23, the steam inlet 27 and the steam outlet 28 are both connected with the heat exchanger 24, the heat conducting oil inlet 25 is located at the upper part of the heat storage and exchange integrated device 20, and the heat conducting oil outlet 26 is located at the lower part of the heat storage and exchange integrated device 20. Conduction oil can enter the containing cavity 23 through the conduction oil inlet 25, the conduction oil in the containing cavity 23 can be discharged through the conduction oil outlet 26, steam can enter the heat exchange body 24 through the steam inlet 27, and the steam in the heat exchange body 24 can be discharged through the steam outlet 28, as shown in fig. 1.
In this embodiment, the shielding gas inlet 29 is located at the top of the heat storage and exchange integrated device 20, a shielding gas injection line 210 is connected to the outside of the shielding gas inlet 29, a shielding gas (such as nitrogen) can be injected into the accommodating cavity 23 through the shielding gas injection line 210, an adjusting valve 213 is arranged on the shielding gas injection line 210, and a first exhaust port 211 and a second exhaust port 212 are further arranged at the top of the heat storage and exchange integrated device 20.
In this embodiment, the first exhaust port 211 is externally connected to the first exhaust pipe 214, the first exhaust pipe 214 is provided with a first valve 215, the second exhaust port 212 is externally connected to the second exhaust pipe 216, the second exhaust pipe 216 is provided with a safety valve 217, when the heat storage and heat exchange integrated device 20 is in operation, a gas phase space 218 and a liquid phase space 219 which are vertically arranged are formed in the accommodating cavity 23, the heat exchange body 24 is located in the liquid phase space 219, the pressure in the accommodating cavity 23 is a set value, and gas in the gas phase space 218 can be exhausted through the first exhaust pipe 214 and the second exhaust pipe 216.
In this embodiment, the heat transfer oil inlet 25 includes a heat transfer oil first inlet 251 and a heat transfer oil second inlet 252, the heat transfer oil first inlet 251 and the heat transfer oil second inlet 252 are symmetrically disposed on the heat storage and heat exchange integrated device 20, the outlet of the electrically heated heat transfer oil furnace 10 is connected to the heat transfer oil first inlet 251 of the heat storage and heat exchange integrated device 20 through a first oil pipeline 41, the heat transfer oil outlet 26 of the heat storage and heat exchange integrated device 20 is communicated with the inlet of the electrically heated heat transfer oil furnace 10 through a second oil pipeline 42, and the second oil pipeline 42 is provided with a circulating oil pump 45 and a second valve 46. The heat conducting oil is forced to circulate by the circulating oil pump 45, so that the heat conducting oil flows into the furnace at a certain flow velocity, the surface heat transfer of the electric heater is enhanced, and the oil film is prevented from being cracked at an excessive temperature.
In this embodiment, the heat storage and heat exchange integrated steam superheating system further comprises an oil injection main line 51, a third valve 52, an oil injection pump 53 and a fourth valve 54 are sequentially arranged on the oil injection main line 51 along an inlet to outlet direction, the second heat transfer oil inlet 252 of the heat storage and heat exchange integrated device 20 is connected with the oil injection main line 51 through a third oil transfer line 43, and a connection point of the third oil transfer line 43 and the oil injection main line 51 is located between the oil injection pump 53 and the fourth valve 54, as shown in fig. 1.
In the embodiment, the heat medium storage tank 30 comprises a first oil inlet 31, a second oil inlet 32 and a discharge outlet 33, the first oil inlet 31 is located at the upper part of the heat medium storage tank 30, the second oil inlet 32 and the discharge outlet 33 are both located at the lower part of the heat medium storage tank 30, the first oil inlet 31 of the heat medium storage tank 30 is communicated with the heat conducting oil outlet 26 of the heat storage and exchange integrated device 20 through a fourth oil pipeline 44, and a fifth valve 47 is arranged on the fourth oil pipeline 44. The heat storage and exchange integrated device 20 is positioned above the heat medium storage tank 30.
In the embodiment, the second oil inlet 32 of the heating medium storage tank 30 is connected with the main oil injection line 51 through the branch oil injection line 55, the joint of the branch oil injection line 55 and the main oil injection line 51 is located between the third valve 52 and the oil injection pump 53, the branch oil injection line 55 is provided with the sixth valve 56, the discharge port 33 is externally connected with the discharge line 57, and the discharge line 57 is provided with the seventh valve 58.
In the present embodiment, one end of the steam input line 21 is connected to the steam inlet 27 of the heat storage and heat exchange integrated device 20, the other end of the steam input line 21 is connected to the main steam pipe of the steam heat storage of the converter vaporization system, one end of the steam output line 22 is connected to the steam outlet 28 of the heat storage and heat exchange integrated device 20, and the other end of the steam output line 22 is connected to the cylinder of the steam jet pump. The steam inlet 27 is located below the steam outlet 28.
The heat storage and exchange integrated device 20 stores a large amount of heat conduction oil, and the maximum electric load required by intermittent steam supply in the RH vacuum refining smelting period is changed into the continuous average electric load in the period through the heat storage property of the heat conduction oil. The superheated steam is guaranteed to be output by supplying and storing heat conduction oil with large capacity, and the parameter requirements of vacuum refining on the superheated steam in the intermittent production of the air extracting pump are met.
The working process of the heat storage and heat exchange integrated steam superheating system is described below.
The electric heating type heat conduction oil furnace 10 contains an electric heating unit 11, the electric heating unit 11 is connected with a power supply 12, the electric heating unit 11 can heat conduction oil in the electric heating type heat conduction oil furnace 10, and the heating mode of the electric heating unit 11 is not limited to heating modes such as resistance, electromagnetic induction and electric tracing. The heat medium storage tank 30 is operated at a micro-positive pressure, the top of the inside of the heat medium storage tank 30 is an air space, the lower part is an oil space, and the inside of the heat medium storage tank 30 may have a cylindrical or spherical structure.
The low-pressure saturated steam enters the heat exchange body 24 of the heat storage and exchange integrated device 20 through the steam input pipeline 21, the saturated steam exchanges heat with high-temperature heat conduction oil in the heat storage and exchange integrated device 20, and the saturated steam is discharged through the steam output pipeline 22 after being changed into qualified micro superheated steam and is supplied to the RH vacuum refining steam extraction pump for use. The high-temperature heat conduction oil supplied from the electric heating type heat conduction oil furnace 10 enters the accommodating cavity 23 of the heat storage and heat exchange integrated device 20 through the first oil pipeline 41, the newly injected high-temperature heat conduction oil is mixed with the in-tank heat conduction oil and exchanges heat with the saturated steam through the heat exchange body 24, and the heat conduction oil with a lower temperature flows into the bottom of the heat storage and heat exchange integrated device 20 after heat exchange. The tank bottom heat conduction oil is pressurized and sent into the electric heating type heat conduction oil furnace 10 through a second oil pipeline 42 and a circulating oil pump 45 to be heated again.
The top of the heat storage and exchange integrated device 20 is sealed by a protective gas (such as nitrogen) to prevent air from entering the heat storage and exchange integrated device 20 and oxidizing the high-temperature heat transfer oil. The heat medium storage tank 30 is arranged at a position lower than the heat storage and exchange integrated device 20, and the effective volume of the heat medium storage tank 30 is larger than the total oil quantity of the heat conduction oil system, so that the heat conduction oil in the heat conduction oil system can be drained. When the heat storage and heat exchange integrated steam superheating system needs oil supplement, oil is injected by the oil injection pump of the heat medium storage tank 30, so that the liquid level of heat conduction oil in the heat storage and heat exchange integrated device 20 is ensured to be higher than the top surface of the heat exchanger 24.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.
Claims (10)
1. The utility model provides a heat accumulation heat transfer integration steam overheat system, its characterized in that, heat accumulation heat transfer integration steam overheat system includes through pipe connection's electrical heating formula heat conduction oil furnace (10), heat accumulation heat transfer integrated device (20) and heat medium storage tank (30), and electrical heating formula heat conduction oil furnace (10) can heat the conduction oil, and heat accumulation heat transfer integrated device (20) outer joint steam input pipeline (21) and steam output line (22), the conduction oil in heat accumulation heat transfer integrated device (20) can heat the steam in the heat accumulation heat transfer integrated device (20).
2. The heat storage and heat exchange integrated steam superheating system according to claim 1, wherein the heat conducting oil in the electric heating type heat conducting oil furnace (10) can enter the heat storage and heat exchange integrated device (20), the heat conducting oil in the heat storage and heat exchange integrated device (20) can enter the electric heating type heat conducting oil furnace (10), the heat conducting oil in the heat storage and heat exchange integrated device (20) can also enter the heat medium storage tank (30), and the heat conducting oil in the heat medium storage tank (30) can enter the heat storage and heat exchange integrated device (20); the heat storage and exchange integrated device (20) is internally provided with an accommodating cavity (23) and a heat exchange body (24), and the side wall of the heat storage and exchange integrated device (20) is provided with a heat conduction oil inlet (25), a heat conduction oil outlet (26), a steam inlet (27), a steam outlet (28) and a protective gas inlet (29).
3. The heat storage and heat exchange integrated steam superheating system according to claim 2, wherein the heat conduction oil inlet (25) and the heat conduction oil outlet (26) are both communicated with the accommodating cavity (23), the steam inlet (27) and the steam outlet (28) are both connected with the heat exchanger (24), the heat conduction oil inlet (25) is positioned at the upper part of the heat storage and heat exchange integrated device (20), and the heat conduction oil outlet (26) is positioned at the lower part of the heat storage and heat exchange integrated device (20).
4. The heat storage and heat exchange integrated steam superheating system according to claim 2, wherein the shielding gas inlet (29) is located at the upper part of the heat storage and heat exchange integrated device (20), the shielding gas inlet (29) is externally connected with a shielding gas injection pipeline (210), the shielding gas injection pipeline (210) is provided with a regulating valve (213), and the upper part of the heat storage and heat exchange integrated device (20) is further provided with a first exhaust port (211) and a second exhaust port (212).
5. The heat storage and heat exchange integrated steam superheating system according to claim 2, wherein the first exhaust port (211) is externally connected with the first exhaust pipe (214), a first valve (215) is arranged on the first exhaust pipe (214), the second exhaust port (212) is externally connected with the second exhaust pipe (216), a safety valve (217) is arranged on the second exhaust pipe (216), a gas phase space (218) and a liquid phase space (219) which are vertically arranged can be formed in the accommodating cavity (23) of the heat storage and heat exchange integrated device (20), and the heat exchange body (24) is located in the liquid phase space (219).
6. The heat storage and heat exchange integrated steam superheating system according to claim 2, wherein the heat conducting oil inlet (25) comprises a heat conducting oil first inlet (251) and a heat conducting oil second inlet (252), the outlet of the electrically heated heat conducting oil furnace (10) is connected with the heat conducting oil first inlet (251) of the heat storage and heat exchange integrated device (20) through a first oil conveying line (41), the heat conducting oil outlet (26) of the heat storage and heat exchange integrated device (20) is communicated with the inlet of the electrically heated heat conducting oil furnace (10) through a second oil conveying line (42), and the second oil conveying line (42) is provided with a circulating oil pump (45) and a second valve (46).
7. The heat storage and heat exchange integrated steam superheating system according to claim 6, further comprising an oil injection main pipeline (51), wherein a third valve (52), an oil injection pump (53) and a fourth valve (54) are sequentially arranged on the oil injection main pipeline (51), the second heat transfer oil inlet (252) of the heat storage and heat exchange integrated device (20) is connected with the oil injection main pipeline (51) through a third oil pipeline (43), and the joint of the third oil pipeline (43) and the oil injection main pipeline (51) is located between the oil injection pump (53) and the fourth valve (54).
8. The heat storage and heat exchange integrated steam superheating system according to claim 7, wherein the heat medium storage tank (30) comprises a first oil inlet (31), a second oil inlet (32) and a discharge outlet (33), the first oil inlet (31) of the heat medium storage tank (30) is communicated with the heat conducting oil outlet (26) of the heat storage and heat exchange integrated device (20) through a fourth oil pipeline (44), and a fifth valve (47) is arranged on the fourth oil pipeline (44).
9. The heat storage and heat exchange integrated steam superheating system according to claim 8, wherein the second oil inlet (32) of the heat medium storage tank (30) is connected with the oil injection main pipeline (51) through an oil injection branch line (55), the joint of the oil injection branch line (55) and the oil injection main pipeline (51) is located between the third valve (52) and the oil injection pump (53), a sixth valve (56) is arranged on the oil injection branch line (55), a discharge pipeline (57) is connected to the outside of the discharge port (33), and a seventh valve (58) is arranged on the discharge pipeline (57).
10. The heat storage and heat exchange integrated steam superheating system according to claim 1, wherein one end of the steam input pipeline (21) is connected with a steam inlet (27) of the heat storage and heat exchange integrated device (20), the other end of the steam input pipeline (21) is connected with a main steam pipe of a steam heat storage of the converter vaporization system, one end of the steam output pipeline (22) is connected with a steam outlet (28) of the heat storage and heat exchange integrated device (20), and the other end of the steam output pipeline (22) is connected with a cylinder division of the steam jet pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213660.8U CN214332672U (en) | 2020-12-28 | 2020-12-28 | Heat storage and exchange integrated steam superheating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023213660.8U CN214332672U (en) | 2020-12-28 | 2020-12-28 | Heat storage and exchange integrated steam superheating system |
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| CN214332672U true CN214332672U (en) | 2021-10-01 |
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| CN202023213660.8U Active CN214332672U (en) | 2020-12-28 | 2020-12-28 | Heat storage and exchange integrated steam superheating system |
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| Country | Link |
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| CN (1) | CN214332672U (en) |
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2020
- 2020-12-28 CN CN202023213660.8U patent/CN214332672U/en active Active
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