CN217635555U - CO (carbon monoxide) 2 Heat pump-fused salt heat storage step steam supply system - Google Patents
CO (carbon monoxide) 2 Heat pump-fused salt heat storage step steam supply system Download PDFInfo
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- CN217635555U CN217635555U CN202221132472.9U CN202221132472U CN217635555U CN 217635555 U CN217635555 U CN 217635555U CN 202221132472 U CN202221132472 U CN 202221132472U CN 217635555 U CN217635555 U CN 217635555U
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Abstract
The utility model belongs to the technical field of the industry supplies vapour, especially, relate to a CO 2 A heat pump-molten salt heat storage cascade steam supply system. The utility model provides a pair of CO 2 Heat pump-molten salt heat storage step steam supply system through CO 2 The heat pump device preheats the back to the steam of the same way that provides, and the molten salt heat-retaining device that rethread set up heats once more, can guarantee industrial steam unit's well, high pressure and large-traffic steam supply demand. Meanwhile, the fused salt heat storage device stores heat for high-temperature steam, so that the heat storage cost is reduced while the requirement of the thermal power generating unit on flexibility peak regulation is met. Further the CO 2 CO passes through the heat pump-molten salt heat storage step steam supply system 2 The heat storage is realized by compressing and expanding a circulating medium and combining molten salt, so that the coal resource is effectively saved, and the environmental pollution is reduced.
Description
Technical Field
The utility model belongs to the technical field of industry supplies vapour, especially, relate to a CO 2 A heat pump-molten salt heat storage cascade steam supply system.
Background
At present, the demand for flexibility peak regulation of a thermal power unit is increasing, and the flexibility peak regulation not only provides new technical requirements for low-load safe operation of main and auxiliary machines of the thermal power unit, but also ensures that steam can be continuously supplied to the outside under low load.
In the prior art, for example, chinese patent publication No. CN 113465201A, although flexible peak shaving can be realized by using a molten salt heat storage system, it cannot provide large flow rate steam. Therefore, although the common fused salt energy storage system can ensure the peak regulation and frequency modulation functions of the thermal power generating unit under the load instruction of the power plant, and the heat release and heat release processes meet the lifting load requirements of the unit, the existing fused salt heat storage system can only realize the requirements of low-pressure and small-flow steam supply, and cannot realize the requirements of medium-pressure, high-pressure and large-flow steam supply.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the prior artThe above problem of the art, the utility model provides a CO 2 The heat pump-molten salt heat storage step steam supply system uses CO 2 The heat storage device is used for compressing and expanding a circulating medium and combining molten salt for heat storage, effectively saves coal resources, reduces environmental pollution and simultaneously realizes the steam supply requirements of medium and high pressure and large flow.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides a pair of CO 2 The heat pump-molten salt heat storage step steam supply system comprises a steam turbine steam supply device, a molten salt heat storage device and CO 2 The CO2 heat pump steam supply device is characterized in that a driving source of the heat pump steam supply device is a photovoltaic power station; the molten salt heat storage and release device comprises a molten salt steam drum, a molten salt superheater, a molten salt evaporator, a molten salt cold tank, a molten salt hot tank, a first molten salt heat exchanger and a second molten salt heat exchanger; the steam turbine steam supply device is used for respectively supplying steam to the first molten salt heat exchanger and the second molten salt heat exchanger so as to enable the molten salt heat storage device to store heat; CO2 2 A steam outlet of the heat pump steam supply device is communicated with a first steam inlet of the preheating tank through a first steam pipeline, and the preheating tank is communicated with the molten salt steam drum through a first loop; a steam outlet of the molten salt steam drum is communicated with the molten salt superheater through a second steam pipeline, the molten salt steam drum is used for providing preheated steam for the molten salt superheater, and the molten salt evaporator is communicated with the molten salt steam drum through a second loop; a first outlet of the molten salt cold tank is communicated with an inlet of the first molten salt heat exchanger through a first pipeline, a second outlet of the molten salt cold tank is communicated with an inlet of the second molten salt heat exchanger through a second pipeline, an outlet of the first molten salt heat exchanger is communicated with a first inlet of the molten salt hot tank through a third pipeline, and an outlet of the second molten salt heat exchanger is communicated with a second inlet of the molten salt hot tank through a fourth pipeline; the fused salt hot pot is used for providing the steam after preheating in order to reheat the fused salt over heater for the fused salt over heater through fifth pipeline and fused salt over heater intercommunication, and the fused salt over heater passes through sixth pipeline and fused salt evaporimeter intercommunication, and the fused salt evaporimeter passes through the import intercommunication of seventh pipeline and fused salt cold pot.
Preferably, CO 2 Heat pump steam supplyThe device comprises a first heat exchanger, a second heat exchanger, a compressor and an expansion valve; the first heat exchanger is communicated with the second heat exchanger through a working medium loop, the compressor and the expansion valve are respectively arranged on the working medium loop, and CO is introduced into the working medium loop 2 Working medium, the first heat exchanger is communicated with the low-grade heat source to heat CO flowing through the first heat exchanger 2 Working medium; the water inlet of the second heat exchanger is communicated with the first water inlet pipeline, and the steam outlet of the second heat exchanger is communicated with the first steam inlet of the preheating box through the first steam pipeline.
Preferably, CO 2 The driving source of the heat pump steam supply device is a photovoltaic power station, and the photovoltaic power station drives a compressor through a transformer.
Preferably, the heat exchanger further comprises a second water inlet pipeline, the second water inlet pipeline is communicated with the water inlet of the first heat exchanger, and the other end of the second water inlet pipeline is used for communicating the low-grade heat source.
Preferably, the heat exchanger further comprises a first water outlet pipeline, and a water outlet of the first heat exchanger is communicated with the first water outlet pipeline and used for outputting the heat-exchanged low-grade heat source.
Preferably, the steam turbine steam supply device comprises a boiler, a steam turbine high pressure cylinder, a steam turbine intermediate pressure cylinder and a steam turbine low pressure cylinder; the boiler provides steam for a high-pressure steam turbine cylinder and a medium-pressure steam turbine cylinder through a first main steam pipeline and a second main steam pipeline respectively, and the medium-pressure steam turbine cylinder provides steam for a low-pressure steam turbine cylinder through a third main steam pipeline; the steam turbine steam supply device also comprises a first branch steam pipeline and a second branch steam pipeline; one end of the first branch steam pipeline is communicated with the first main steam pipeline, and the other end of the first branch steam pipeline is communicated with the first molten salt heat exchanger; one end of the second branch steam pipeline is communicated with the second main steam pipeline, and the other end of the second branch steam pipeline is communicated with the second molten salt heat exchanger.
Preferably, the steam turbine steam supply device further comprises a fourth main steam pipeline, one end of the fourth main steam pipeline is communicated with a steam outlet of the high-pressure cylinder of the steam turbine, and the other end of the fourth main steam pipeline is communicated with a steam inlet of the boiler; and a steam outlet of the first molten salt heat exchanger is communicated with the fourth main steam pipeline through a third branch steam pipeline.
Preferably, the water outlet of the second molten salt heat exchanger is communicated with the third main steam pipeline through a fourth branch steam pipeline.
Preferably, a first valve is arranged on the first steam branch pipeline; and a second valve is arranged on the second steam branch pipeline.
Preferably, the first steam pipeline is provided with a pipeline pump.
(III) advantageous effects
The beneficial effects of the utility model are that:
the utility model provides a pair of CO 2 Heat pump-molten salt heat storage step steam supply system through CO 2 The heat pump device preheats the back to the steam of the same way that provides, and the molten salt heat-retaining device that rethread set up heats once more, can guarantee industrial steam unit's well, high pressure and large-traffic steam supply demand. Meanwhile, the fused salt heat storage device stores heat for high-temperature steam, so that the heat storage cost is reduced while the requirement of the thermal power generating unit on flexibility peak regulation is met. Further the CO 2 CO passes through the heat pump-molten salt heat storage step steam supply system 2 The heat storage is realized by compressing and expanding a circulating medium and combining molten salt, so that the coal resource is effectively saved, and the environmental pollution is reduced.
Drawings
FIG. 1 shows CO provided by the present invention 2 And the schematic diagram of a heat pump-molten salt heat storage cascade steam supply system.
[ instruction of reference ]
1: a molten salt steam drum; 2: a molten salt superheater; 3: a molten salt evaporator; 4: a molten salt cooling tank; 5: a molten salt hot pot; 6: a first molten salt heat exchanger; 7: a second molten salt heat exchanger; 8: a first steam line; 9: a preheating box; 10: a first circuit; 11: a second steam line; 12: a second loop; 13: a first pipeline; 14: a second pipeline; 15: a third pipeline; 16: a fourth pipeline; 17: a fifth pipeline; 18: a sixth pipeline; 19: a seventh pipeline; 20: a first heat exchanger; 21: a second heat exchanger; 22: a compressor; 23: an expansion valve; 24: a working medium loop; 25: a first water inlet pipeline; 26: a second water inlet pipeline; 27: a first water outlet pipeline; 28: a boiler; 29: a high-pressure cylinder of the steam turbine; 30: a turbine intermediate pressure cylinder; 31: a low-pressure cylinder of the steam turbine; 32: a first main steam line; 33: a second main steam line; 34: a third main steam line; 35: a first steam branch pipe; 36: a second branch steam conduit; 37: a fourth main steam line; 38: a third steam branch pipe; 39: a fourth branch steam pipeline; 40: a first valve; 41: a second valve; 42: a pipeline pump.
Detailed Description
In order to better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
As shown in figure 1, the utility model provides a CO 2 The heat pump-molten salt heat storage step steam supply system comprises a steam turbine steam supply device, a molten salt heat storage device and CO 2 A heat pump steam supply device. The molten salt heat storage and release device comprises a molten salt steam drum 1, a molten salt superheater 2, a molten salt evaporator 3, a molten salt cold tank 4, a molten salt hot tank 5, a first molten salt heat exchanger 6 and a second molten salt heat exchanger 7.
The steam turbine steam supply device is used for respectively supplying steam to the first molten salt heat exchanger 6 and the second molten salt heat exchanger 7 so as to enable the molten salt heat storage device to store heat. CO2 2 The steam outlet of the heat pump steam supply device is communicated with the first steam inlet of the preheating tank 9 through a first steam pipeline 8, the preheating tank 9 is communicated with the molten salt steam drum 1 through a first loop 10, the steam outlet of the molten salt steam drum 1 is communicated with the molten salt superheater 2 through a second steam pipeline 11, the molten salt steam drum 1 is used for providing preheated steam for the molten salt superheater 2, the molten salt evaporator 3 is communicated with the molten salt steam drum through a second loop 12, the first outlet of the molten salt cold tank 4 is communicated with the inlet of the first molten salt heat exchanger 6 through a first pipeline 13, the second outlet of the molten salt cold tank 4 is communicated with the inlet of the second molten salt heat exchanger 7 through a second pipeline 14, the outlet of the first molten salt heat exchanger 6 is communicated with the first inlet of the molten salt hot tank 5 through a third pipeline 15The mouth intercommunication, the export of second fused salt heat exchanger 7 is through the second entry intercommunication of fourth pipeline 16 with fused salt hot jar 5, and fused salt hot jar 5 is used for providing the steam after preheating in order to reheat fused salt over heater 2 for fused salt over heater 2 through fifth pipeline 17 and fused salt over heater 2 intercommunication, and fused salt over heater 2 passes through sixth pipeline 18 and fused salt evaporimeter 3 intercommunication, and fused salt evaporimeter 3 passes through the import intercommunication of seventh pipeline 19 and fused salt cold pot 4. Wherein, the preheating box 9 is used for CO 2 And preheating the steam output by the heat pump steam supply device again to ensure that the temperature of the steam is increased in a gradient manner.
In the fused salt heat storage device, ternary salt is stored in the fused salt cold storage tank 4, the ternary salt enters the first fused salt heat exchanger 6 through the first pipeline 13 through the fused salt pump, the steam heat is absorbed, and the heated ternary salt enters the fused salt hot storage tank 5 through the third pipeline 15. The ternary salt stored in the molten salt cold tank 4 enters the second molten salt heat exchanger 7 through the second pipeline 14 by the molten salt pump to absorb the heat of steam, and the heated ternary salt enters the molten salt hot tank 5 through the fourth pipeline 16. The ternary salt with the temperature of 360 ℃ stored in the fused salt hot tank 5 enters the fused salt superheater 2 through the fifth pipeline 17 to carry out fused salt-steam heat exchange, the ternary salt after heat exchange enters the fused salt evaporator 3 through the sixth pipeline 18, and the ternary salt after heat exchange in the fused salt evaporator 3 enters the fused salt cold tank 4 through the seventh pipeline 19 to complete circulation in the fused salt system.
Wherein, fused salt evaporimeter 3 communicates with fused salt steam pocket 1 through second return circuit 12, wherein the effect of second return circuit 12 is sent into fused salt evaporimeter 3 with the liquid water that forms after the vapour-liquid separator in fused salt steam pocket 1 releases heat to will send the steam that forms through fused salt evaporimeter 3 heating back to fused salt steam pocket 1 in, fused salt evaporimeter 3 provides steam for fused salt steam pocket 1, fused salt steam pocket 1 gets into fused salt evaporimeter 3 through the water after the vapour-liquid separation and continues the heat absorption and become steam and get back to fused salt steam pocket 1, and then make the better utilization of heat.
In particular, CO 2 The heat pump steam supply device includes a first heat exchanger 20, a second heat exchanger 21, a compressor 22, and an expansion valve 23. Wherein, the first heat exchanger 20 is communicated with the second heat exchanger 21 through a working medium loop 24, and the compressor 22 and the expansion valve 23 are respectively arranged on the working mediumOn the loop 24, CO is introduced into the working medium loop 24 2 Working medium, the first heat exchanger 20 is communicated with a low-grade heat source to heat CO flowing through the first heat exchanger 20 2 The working medium, the water inlet of the second heat exchanger 21 communicates with the first water inlet pipeline 25, the steam outlet of the second heat exchanger 21 communicates with the first steam inlet of the preheating tank 9 through the first steam pipeline 8. In this example, to further reduce environmental pollution, zero carbon emission, CO, was achieved 2 The driving source of the heat pump steam supply device is a photovoltaic power station, and the photovoltaic power station drives the compressor 22 through a transformer. The demineralized water enters the second heat exchanger 21 through the first water inlet pipeline 25 for heat exchange, then steam is generated and enters the first steam pipeline 8, and in the practical application process, the pipeline pump 42 is arranged on the first steam pipeline 8 to adjust the steam flow output from the first steam pipeline 8 to the preheating tank 9.
In this example, CO 2 The heat pump-molten salt heat storage step steam supply system further comprises a second water inlet pipeline 26 and a first water outlet pipeline 27, the second water inlet pipeline 26 is communicated with the water inlet of the first heat exchanger 20, and the other end of the second water inlet pipeline 26 is used for communicating a low-grade heat source. The water outlet of the first heat exchanger 20 is communicated with the first water outlet pipeline 27 and is used for outputting the low-grade heat source after heat exchange. It should be noted that, in this embodiment, the low-grade heat source is low-grade waste heat in the circulating water of the thermal power generating unit, the temperature of the circulating water entering the inlet of the second water inlet pipeline 26 is 35 ℃, and the temperature of the circulating water discharged from the first water outlet pipeline 27 is 20 ℃. The first heat exchanger 20 will pass the CO in the working medium circuit 24 therein 2 And the working medium is heated and is used for providing heat for the second heat exchanger 21 to heat the desalted water. In this embodiment, a 200t/h 20 ℃ demineralized water stream is introduced from the first water inlet line 25 into the first heat exchanger 20. The steam is heated in the first heat exchanger 20 to a saturated steam temperature at a corresponding pressure, for example, 0.4Mpa to 0.5Mpa at a pressure of the demineralized water pipeline of 330MW units, and then heated to about 150 ℃.
The pressure design of the desalted water can be designed according to the actual requirement of industrial steam supply pressure, the steam supply pressure can be designed according to 1.6Mpa for the requirement of medium-pressure industrial steam, the pressure design can be designed according to the pressure above 2.0Mpa for the requirement of high-pressure industrial steam, and the pressure can be increased to 2.2-2.6Mpa by adjusting the pipeline pump 42 in the embodiment.
Specifically, the steam turbine steam supply device includes a boiler 28, a steam turbine high pressure cylinder 29, a steam turbine intermediate pressure cylinder 30, and a steam turbine low pressure cylinder 31. The boiler 28 provides steam for the steam turbine high pressure cylinder 29 and the steam turbine intermediate pressure cylinder 30 through first main steam pipeline 32 and second main steam pipeline 33 respectively, the steam turbine intermediate pressure cylinder 30 provides steam for the steam turbine low pressure cylinder 31 through third main steam pipeline 34, the steam turbine supplies vapour device still includes first steam branch pipeline 35 and second steam branch pipeline 36, the one end and the first main steam pipeline 32 intercommunication of first steam branch pipeline 35, the other end and the first fused salt heat exchanger 6 intercommunication of first steam branch pipeline 35 are used for providing high temperature steam for first fused salt heat exchanger 6, the one end and the second main steam pipeline 33 intercommunication of second steam branch pipeline 36, the other end and the second fused salt heat exchanger 7 intercommunication of second steam branch pipeline 36 are used for providing steam for second fused salt heat exchanger 7. Of course, a first valve 40 is provided on the first steam branch pipe 35, and a second valve 41 is provided on the second steam branch pipe 36 to adjust the amount of input steam.
In this embodiment, the steam turbine steam supply device further includes a fourth main steam pipeline 37, one end of the fourth main steam pipeline 37 is communicated with the steam outlet of the steam turbine high-pressure cylinder 29, the other end of the fourth main steam pipeline 37 is communicated with the steam inlet of the boiler 28, and the steam outlet of the first molten salt heat exchanger 6 is communicated with the fourth main steam pipeline 37 through a third branch steam pipeline 38. The water outlet of the second molten salt heat exchanger 7 is communicated with the third main steam pipeline 34 through a fourth branch steam pipeline 39. The third branch steam pipeline 38 is arranged to ensure that the steam after heat release of the molten salt system still returns to the reheater of the boiler 28 without affecting the temperature of the reheated steam of the boiler 28 and the wall temperature of the reheater, and the fourth branch steam pipeline 39 is arranged to ensure that the steam re-extracted from the heat of the boiler 28 still returns to the intermediate pressure cylinder 30 of the steam turbine to do work after the heat release of the molten salt heat storage device, so that the energy is utilized to the maximum extent, meanwhile, the extracted steam returns to the low pressure cylinder 31 of the steam turbine to continue to do work, the steam-water balance of the original boiler-steam turbine is not damaged, and the stable operation of the unit is not affected in the processes of heat absorption and heat release of the molten salt system.
The present embodiment provides a CO 2 Heat pumpMolten salt heat storage step steam supply system, by CO 2 The heat pump device preheats the back to the steam of the same way that provides, and the molten salt heat-retaining device that rethread set up heats once more, can guarantee industrial steam unit's well, high pressure and large-traffic steam supply demand. Meanwhile, the fused salt heat storage device stores heat for high-temperature steam, so that the heat storage cost is reduced while the requirement of the thermal power generating unit on flexibility peak regulation is met. Further the CO is generated 2 CO passes through the heat pump-molten salt heat storage step steam supply system 2 The heat storage is realized by compressing and expanding a circulating medium and combining molten salt, so that the coal resource is effectively saved, and the environmental pollution is reduced.
While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that modifications, adaptations, substitutions and variations of the above embodiments may occur to one of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. CO (carbon monoxide) 2 The heat pump-molten salt heat storage step steam supply system is characterized by comprising a steam turbine steam supply device, a molten salt heat storage device and CO 2 Heat pump steam supply device, CO 2 The driving source of the heat pump steam supply device is a photovoltaic power station;
the molten salt heat storage and release device comprises a molten salt steam drum, a molten salt superheater, a molten salt evaporator, a molten salt cold tank, a molten salt hot tank, a first molten salt heat exchanger and a second molten salt heat exchanger;
the steam turbine steam supply device is used for respectively providing steam for the first molten salt heat exchanger and the second molten salt heat exchanger so as to enable the molten salt heat storage and release device to store heat;
the CO is 2 A steam outlet of the heat pump steam supply device is communicated with a first steam inlet of a preheating tank through a first steam pipeline, and the preheating tank is communicated with the molten salt steam drum through a first loop;
a steam outlet of the molten salt steam drum is communicated with the molten salt superheater through a second steam pipeline, the molten salt steam drum is used for providing preheated steam for the molten salt superheater, and the molten salt evaporator is communicated with the molten salt steam drum through a second loop;
a first outlet of the molten salt cold tank is communicated with an inlet of the first molten salt heat exchanger through a first pipeline, a second outlet of the molten salt cold tank is communicated with an inlet of the second molten salt heat exchanger through a second pipeline, an outlet of the first molten salt heat exchanger is communicated with a first inlet of the molten salt hot tank through a third pipeline, and an outlet of the second molten salt heat exchanger is communicated with a second inlet of the molten salt hot tank through a fourth pipeline;
the molten salt hot tank is communicated with the molten salt superheater through a fifth pipeline and is used for providing heat for the molten salt superheater to reheat the preheated steam in the molten salt superheater, the molten salt superheater is communicated with the molten salt evaporator through a sixth pipeline, and the molten salt evaporator is communicated with an inlet of the molten salt cold tank through a seventh pipeline.
2. The CO of claim 1 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: said CO 2 The heat pump steam supply device comprises a first heat exchanger, a second heat exchanger, a compressor and an expansion valve;
the first heat exchanger is communicated with the second heat exchanger through a working medium loop, the compressor and the expansion valve are respectively arranged on the working medium loop, and CO is communicated in the working medium loop 2 The first heat exchanger is communicated with a low-grade heat source to heat CO flowing through the first heat exchanger 2 Working medium;
and a water inlet of the second heat exchanger is communicated with a first water inlet pipeline, and a steam outlet of the second heat exchanger is communicated with a first steam inlet of the preheating tank through the first steam pipeline.
3. CO according to claim 2 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: the photovoltaic power station drives the compressor through a transformer.
4. CO according to claim 2 2 Heat pump-molten salt heat storage step steam supplyA system, characterized by: the heat exchanger is characterized by further comprising a second water inlet pipeline, wherein one end of the second water inlet pipeline is communicated with the water inlet of the first heat exchanger, and the other end of the second water inlet pipeline is used for communicating the low-grade heat source.
5. CO according to claim 4 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: the heat exchanger further comprises a first water outlet pipeline, and a water outlet of the first heat exchanger is communicated with the first water outlet pipeline and used for outputting the low-grade heat source after heat exchange.
6. The CO of claim 1 2 The heat pump-fused salt heat storage step steam supply system is characterized in that:
the steam turbine steam supply device comprises a boiler, a steam turbine high-pressure cylinder, a steam turbine medium-pressure cylinder and a steam turbine low-pressure cylinder;
the boiler provides steam for the high-pressure steam turbine cylinder and the medium-pressure steam turbine cylinder through a first main steam pipeline and a second main steam pipeline respectively, and the medium-pressure steam turbine cylinder provides steam for the low-pressure steam turbine cylinder through a third main steam pipeline;
the steam turbine steam supply device also comprises a first steam branch pipeline and a second steam branch pipeline;
one end of the first branch steam pipeline is communicated with the first main steam pipeline, and the other end of the first branch steam pipeline is communicated with the first molten salt heat exchanger;
one end of the second branch steam pipeline is communicated with the second main steam pipeline, and the other end of the second branch steam pipeline is communicated with the second molten salt heat exchanger.
7. CO according to claim 6 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: the steam turbine steam supply device further comprises a fourth main steam pipeline, one end of the fourth main steam pipeline is communicated with a steam outlet of the high-pressure cylinder of the steam turbine, and the other end of the fourth main steam pipeline is communicated with a steam inlet of the boiler;
and a steam outlet of the first molten salt heat exchanger is communicated with the fourth main steam pipeline through a third branch steam pipeline.
8. The CO of claim 7 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: and the water outlet of the second molten salt heat exchanger is communicated with the third main steam pipeline through a fourth branch steam pipeline.
9. CO according to claim 6 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: the first steam branch pipeline is provided with a first valve;
and a second valve is arranged on the second steam branch pipeline.
10. The CO of claim 1 2 The heat pump-fused salt heat storage step steam supply system is characterized in that: and a pipeline pump is arranged on the first steam pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221132472.9U CN217635555U (en) | 2022-05-11 | 2022-05-11 | CO (carbon monoxide) 2 Heat pump-fused salt heat storage step steam supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221132472.9U CN217635555U (en) | 2022-05-11 | 2022-05-11 | CO (carbon monoxide) 2 Heat pump-fused salt heat storage step steam supply system |
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