CN210153753U - Water side system of solar photo-thermal power generation fused salt steam generation system - Google Patents
Water side system of solar photo-thermal power generation fused salt steam generation system Download PDFInfo
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- CN210153753U CN210153753U CN201920969576.7U CN201920969576U CN210153753U CN 210153753 U CN210153753 U CN 210153753U CN 201920969576 U CN201920969576 U CN 201920969576U CN 210153753 U CN210153753 U CN 210153753U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 150000003839 salts Chemical class 0.000 title claims abstract description 46
- 238000010248 power generation Methods 0.000 title claims abstract description 22
- 230000001174 ascending effect Effects 0.000 claims description 7
- 230000035939 shock Effects 0.000 abstract description 3
- 230000008646 thermal stress Effects 0.000 abstract description 2
- 230000008676 import Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 229920006395 saturated elastomer Polymers 0.000 description 7
- 238000003303 reheating Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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Abstract
The utility model discloses a water side system of a solar photo-thermal power generation fused salt steam generation system, which comprises a preheater, a steam pocket, an evaporator, a superheater, a reheater and a starting unit, wherein the starting unit comprises a starting circulating pump and an electric heater, the starting circulating pump is arranged in a starting circulating pipe in series, and the electric heater is arranged in an electric heater pipeline which is arranged in parallel with an inlet pipe of the preheater or an outlet pipe of the preheater; the reheater inlet pipe is connected with the superheater inlet pipe or the superheater outlet pipe through a first pipeline, and the reheater outlet pipe is connected with the condenser or the deaerator through a second pipeline. The utility model discloses preheating the function, guaranteeing to have simplified system constitution and system operation mode, reduced the system cost under the prerequisite of system safe and reliable operation in the realization system, preheating of while system has also guaranteed that the fused salt that gets into the system can not take place to solidify, also can reduce equipment thermal stress and thermal shock.
Description
Technical Field
The utility model relates to a solar photothermal power's technical field, more specifically say, relate to a solar photothermal power fused salt steam generation system's waterside system
Background
The tower type solar photo-thermal power generation technology using the molten salt as the heat transfer and storage medium has the advantages of high working temperature, short heat transfer path, less heat loss, high comprehensive efficiency and suitability for large-scale and large-capacity commercial application, and is gradually becoming the mainstream technology of solar photo-thermal power generation. A steam generation system (hereinafter referred to as a molten salt steam generation system) taking molten salt as a heat transfer medium plays a crucial role in a tower-type solar photo-thermal power station, and the starting and the operation of the steam generation system are related to the output quality and the stability of superheated steam of the system, so that the operation performance of the whole power station is influenced.
Due to the fact that the freezing point of the molten salt is high, a special preheating process is needed when the molten salt steam generation system is started in a cold state, and the molten salt entering the system is prevented from being frozen. Preheating of the salt side of the system can be accomplished by electric tracing bands or steam heaters, while preheating of the water side of the system requires special system setup and operating schemes.
At present, the starting preheating of the water side of the molten salt steam generation system mainly provides heat through an external electric heater, but the problems of complex system, no unified specification and the like exist in the design of the system such as pipelines and valve arrangement, and the design, operation and maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a solar photothermal power fused salt steam generation system's water side system can realize preheating and the normal operating of steam generation system under each operating mode of cold starting in-process water side system.
The utility model provides a solar photothermal power fused salt steam generation system's water side system, the water side system includes preheater, steam pocket, evaporimeter, over heater, re-heater and start unit, the preheater passes through preheater import pipe and links to each other with the water supply unit and links to each other with the steam pocket through the preheater outlet pipe, the steam pocket passes through the steam pocket downcomer and links to each other with the evaporimeter and links to each other with the over heater through the superheater import pipe, the evaporimeter passes through the steam pocket tedge and links to each other with the steam pocket and passes through the start circulating pipe and the preheater import pipe, the over heater passes through the over heater outlet pipe and links to each other with the admission pipe of steam turbine high pressure jar, the re-heater passes through the re-heater import pipe and links to each other with the,
the starting unit comprises a starting circulating pump and an electric heater, the starting circulating pump is arranged in the starting circulating pipe in series, and the electric heater is arranged in an electric heater pipeline which is arranged in parallel with an inlet pipe or an outlet pipe of the preheater; the reheater inlet pipe is connected with the superheater inlet pipe or the superheater outlet pipe through a first pipeline, and the reheater outlet pipe is connected with the condenser or the deaerator through a second pipeline.
According to an embodiment of the water side system of the solar photothermal power generation molten salt steam generation system of the present invention, when the reheater inlet pipe is connected to the superheater inlet pipe, the first pipeline is a first connecting pipeline, and the second pipeline is a second connecting pipeline; when the reheater inlet pipe is connected with the superheater outlet pipe, the first pipeline is a high-pressure bypass, and the second pipeline is a low-pressure bypass.
According to an embodiment of the water side system of the solar photo-thermal power generation fused salt steam generation system, when the electric heater is arranged on the inlet pipe of the preheater in parallel, the inlet pipe of the preheater is also provided with a closing valve of the inlet pipeline of the preheater which is arranged in parallel with the electric heater; when the electric heater is arranged on the outlet pipe of the preheater in parallel, the outlet pipe of the preheater is also provided with a shutoff valve of the outlet pipeline of the preheater which is arranged in parallel with the electric heater.
According to the utility model discloses an embodiment of solar energy light and heat electricity generation fused salt steam generation system's water side system, the front end and the rear end of starting the circulating pump are provided with the start circulation pipeline shut-off valve, electric heater's front end and rear end are provided with electric heater pipeline shut-off valve.
According to the utility model discloses an embodiment of solar energy light and heat electricity generation fused salt steam generation system's water side system, be provided with over heater outlet pipe shut-off valve on the over heater outlet pipe, be provided with reheater import pipeline shut-off valve in the reheater import pipe, be provided with reheater export pipeline shut-off valve on the reheater outlet pipe.
Compared with the prior art, the system of the utility model can effectively realize the preheating of the water side pipeline and the equipment of the system in the cold starting stage, and prevent the solidification of the fused salt; the system leads the molten salt into the system after gradually raising the temperature of the water working medium and the steam in the preheating process, so that the temperature difference between the tube side and the shell side of the heat exchanger equipment can be reduced, thermal shock is reduced, and the service life of the equipment is prolonged; the starting circulation pipeline is directly led out from the evaporator and is connected with a water supply pipeline at the inlet of the preheater, the pipeline length is reduced, the flow is simple, the system structure is simple, and the manufacturing cost is low; the system pipelines (a steam pocket ascending pipe, a steam pocket descending pipe and a preheater inlet and outlet connecting pipe) are directly used as a preheating water working medium circulation passage, other water working medium pipelines are not required to be arranged, the pipelines and corresponding valve accessories are saved, and the system setting and operation are simplified; the high-pressure bypass and the low-pressure bypass of the steam turbine can be directly used as a preheating steam passage, other steam pipelines are not required to be arranged, pipelines and corresponding valve accessories are saved, and system setting and operation are simplified; the water side pipeline and equipment are preheated by water/steam, an electric tracing band preheating system is omitted, the reliability is high, and the construction and operation and maintenance cost is reduced.
Drawings
Fig. 1 shows a schematic structural diagram of a water-side system of a solar photo-thermal power generation molten salt steam generation system according to an exemplary embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of a waterside system of a solar photo-thermal power generation molten salt steam generation system according to another exemplary embodiment of the present invention.
Description of reference numerals:
a-starting a circulating pump, a b-electric heater, a c-preheater, a d-evaporator, an e-steam drum, an f-superheater, a g-reheater, an h-superheater outlet pipeline shut-off valve, an i-reheater outlet pipeline shut-off valve, a j-reheater inlet pipeline shut-off valve, a k-starting circulating pipeline shut-off valve, an l-electric heater pipeline shut-off valve and an m-preheater inlet pipeline shut-off valve;
the system comprises a preheater inlet pipe 1, a preheater outlet pipe 2, a steam drum riser 3, a steam drum downcomer 4, a start-up circulation pipe 5, a superheater inlet pipe 6, a superheater outlet pipe 7, a reheater inlet pipe 8, a reheater outlet pipe 9, a reheater outlet pipe 10, a high-pressure bypass 11, a low-pressure bypass 12, a first connecting pipeline 13 and a second connecting pipeline 13.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The water side system of the solar photo-thermal power generation molten salt steam generation system of the present invention will be specifically described below with reference to the accompanying drawings. The utility model discloses mainly carry out structure and function optimization to the water side system, the structure of salt side system is not repeated.
Fig. 1 shows a schematic structural diagram of a water side system of a solar photo-thermal power generation molten salt steam generation system according to an exemplary embodiment of the present invention, and fig. 2 shows a schematic structural diagram of a water side system of a solar photo-thermal power generation molten salt steam generation system according to another exemplary embodiment of the present invention.
As shown in fig. 1 and 2, according to an exemplary embodiment of the present invention, the water side system of the solar photo-thermal power generation molten salt steam generation system comprises a preheater c, a steam drum e and an evaporator d, superheater f, reheater g and start unit, preheater c links to each other with the water supply unit through preheater import pipe 1 and links to each other with steam pocket e through preheater exit pipe 2, steam pocket e links to each other with evaporimeter d through steam pocket downcomer 4 and links to each other with superheater f through superheater import pipe 6, evaporimeter d links to each other with steam pocket e through steam pocket tedge 3 and links to each other with preheater import pipe 1 through start-up circulating pipe 5, superheater f links to each other with the intake pipe of steam turbine high pressure cylinder through superheater exit pipe 7, reheater g links to each other with the blast pipe of steam turbine high pressure cylinder through reheater import pipe 8 and links to each other with the steam turbine intermediate pressure cylinder through reheater exit pipe 9.
The starting unit comprises a starting circulating pump a and an electric heater b, the starting circulating pump a is arranged in the starting circulating pipe 5 in series, and the electric heater b is arranged in an electric heater pipeline which is arranged in parallel with the inlet pipe 1 or the outlet pipe 2 of the preheater; the reheater inlet pipe 8 is connected to the superheater inlet pipe 6 or the superheater outlet pipe 7 via a first pipeline, and the reheater outlet pipe 9 is connected to the condenser or the deaerator via a second pipeline.
The system actually comprises connecting pipelines among the devices and related valve accessories on the pipelines, wherein the preheater, the evaporator, the steam drum, the superheater, the reheater, the electric heater and the starting circulating water pump can adopt related devices in the prior art.
The utility model discloses a system can provide power by starting the circulating pump and make the water working medium form the closed circulation through connecting line between pre-heater, steam pocket, evaporimeter in cold state start-up preheating stage, and electric heater preheats for the system and provides the heat. The starting circulating pipe where the starting circulating pump is located is directly connected with the evaporator instead of being led out by a steam drum, so that the length of the pipeline and the working medium flow are shortened, the economy of model selection of the circulating water pump can be improved, and the pipeline arrangement of the system is simpler; and the inlet and outlet pipelines of the preheater, the steam pocket ascending pipe and the steam pocket descending pipe are directly used as water circulation passages, so that the system composition and the system operation mode can be simplified, and the system cost is reduced. Meanwhile, the preheating of the system also ensures that the molten salt entering the system cannot be solidified, and the thermal stress and thermal shock of the equipment can be reduced.
As shown in fig. 1, when the reheater inlet duct 8 is connected to the superheater outlet duct 7, the first line is a high pressure bypass 10, and the second line is a low pressure bypass 11; as shown in fig. 2, when the reheater inlet duct 8 is connected to the superheater inlet duct 6, the first line is a first connecting line 12 and the second line is a second connecting line 13.
When the high-pressure bypass and the low-pressure bypass of the steam turbine are used as steam preheating passages, other water working mediums and steam pipelines are not required to be additionally arranged, corresponding valve accessories are reduced, the system constitution and the system operation mode are simplified on the premise of realizing the system preheating function and ensuring the safe and reliable operation of the system, and the system cost is reduced.
However, according to the actual unit situation, when the high-pressure bypass and the low-pressure bypass cannot be used as the starting preheating steam path, a first connecting pipeline 12 can be arranged at the outlet of the steam drum e and connected to the inlet pipe 8 of the reheater, and a second connecting pipeline 13 can be arranged at the outlet pipe 9 of the reheater and connected to the deaerator or the condenser. At this time, the preheating steam separated from the steam drum e passes through the preheating superheater f and the rear end pipeline of the heater inlet pipe 6, and passes through the second connecting pipeline 13 after passing through the connecting pipeline 12 to preheat the reheater g. When the system normally operates, the first connecting pipeline and the second connecting pipeline are cut off.
Wherein, the electric heater b can be arranged in front of the inlet of the preheater c or behind the outlet of the preheater. When the electric heater b is arranged on the inlet pipe 1 of the preheater in parallel, the inlet pipe 1 of the preheater is also provided with a closing valve m of an inlet pipeline of the preheater which is arranged in parallel with the electric heater b; when the electric heater b is arranged on the outlet pipe 2 of the preheater in parallel, the outlet pipe 2 of the preheater is also provided with a shutoff valve m of the outlet pipeline of the preheater which is arranged in parallel with the electric heater b. Therefore, the flow path can be controlled by the inlet/outlet pipeline shutoff valve m of the preheater to control whether the water working medium from the water supply unit needs to be heated by the electric heater.
Furthermore, the utility model discloses well start-up circulating pump a's front end and rear end still are provided with start-up circulation pipeline shut-off valve k, and electric heater b's front end and rear end also are provided with electric heater pipeline shut-off valve l to realize the control of each pipeline.
Preferably, a superheater outlet pipe shut-off valve h is arranged on the superheater outlet pipe 7, a reheater inlet pipe shut-off valve j is arranged on the reheater inlet pipe 8, and a reheater outlet pipe shut-off valve j is arranged on the reheater outlet pipe 9. According to the actual unit condition, the steam can be blocked from entering the steam turbine during cold starting by using the high-pressure cylinder and the medium-pressure cylinder steam valves of the steam turbine without arranging the superheater outlet shutoff valve h, the reheater inlet shutoff valve j and the reheater outlet shutoff valve i.
The utility model discloses a water side system both can be used to the natural circulation and also can be used to the forced circulation, both is applicable to binary fused salt system and also is applicable to ternary fused salt system.
The water side system operation mode of the solar photo-thermal power generation fused salt steam generation system is as follows:
when the cold-state starting is carried out, water is fed into a steam drum from a water supply unit, water working media are filled in the preheater, the evaporator and pipelines among the preheater, the evaporator and the steam drum, the circulating water pump is started to provide power to enable the water working media to form closed circulation among the preheater, the steam drum and the evaporator, the electric heater is controlled to continuously heat the water working media in the closed circulation, and the water working media with the raised temperature are utilized to preheat the preheater, the evaporator, the steam drum and related pipelines; after saturated steam is generated, the steam subjected to steam-water separation by the steam drum is preheated sequentially by a superheater, a reheater and related pipelines, the steam subjected to heat release is discharged into a condenser or a deaerator, and condensed water is discharged through a drainage unit; controlling the electric heater to continuously heat and continuously generate saturated steam in cooperation with pressure regulation, increasing the temperature of the saturated steam, and preheating the system to a preset temperature; when the salt side system of the solar photo-thermal power generation molten salt steam generation system reaches a preset temperature (can be heated by electric tracing and the like), molten salt is introduced into the solar photo-thermal power generation molten salt steam generation system to gradually generate superheated steam required by a steam turbine, and the generated superheated steam is discharged into a condenser before the superheated steam reaches parameters allowing the superheated steam to enter the steam turbine.
When the solar photo-thermal power generation fused salt steam generation system normally operates, stopping running, starting the circulating water pump, cutting off the starting circulating pipeline, stopping running the electric heater, cutting off the electric heater pipeline, and controlling a water working medium to enter the preheater and then enter the steam pocket; controlling saturated water in the steam drum to enter an evaporator through a steam drum descending pipe, controlling a steam-water mixture formed after evaporation in the evaporator to enter the steam drum through a steam drum ascending pipe and performing steam-water separation in the steam drum, and controlling separated steam to enter a superheater for reheating; and cutting off the first pipeline and the second pipeline, controlling superheated steam at the outlet of the superheater to enter a high-pressure cylinder of the steam turbine for acting through a superheater outlet pipe, controlling exhausted steam of the high-pressure cylinder of the steam turbine to enter a reheater for reheating, and then controlling the exhausted steam to enter a medium-pressure cylinder of the steam turbine for acting.
The invention will be further described with reference to specific embodiments.
Example 1:
as shown in fig. 1, the main equipment of the system comprises a starting circulating pump a, an electric heater b, a preheater c, an evaporator d, a steam drum e, a superheater f and a reheater g; the valves comprise a superheater outlet shutoff valve h, a reheater outlet shutoff valve i, a reheater inlet shutoff valve j, a starting circulation pipeline shutoff valve k, an electric heater pipeline shutoff valve l and a preheater inlet pipeline shutoff valve m, and it should be noted that the valves shown in the figures are only valves which need to be particularly pointed out in the description of the patent embodiment, and the system actually further comprises other necessary various valves and instruments; the pipeline comprises a preheater inlet pipe 1, a preheater outlet pipe 2, a drum ascending pipe 3, a drum descending pipe 4, a starting circulating pipe 5, a superheater inlet pipe 6, a superheater outlet pipe 7 (namely a main steam pipe), a reheater inlet pipe 8 (namely a low-temperature reheating steam pipe), a reheater outlet pipe 9 (namely a high-temperature reheating steam pipe), a high-pressure bypass 10 and a low-pressure bypass 11. One end of the start-up circulation pipe 5 is connected with the evaporator d, and the other end is connected with the inlet pipe 1 of the preheater.
When the cold-state starting is carried out, the valves k and l are opened, the valves m, h, i and j are all closed, water is supplied to the water supply unit until the liquid level in the steam pocket e reaches the specified height, and at the moment, the preheater c, the evaporator d, the preheater inlet pipe 1, the preheater outlet pipe 2, the steam pocket ascending pipe 3, the steam pocket descending pipe 4 and the starting circulating pipe 5 are filled with water working media.
Operating and starting the circulating water pump a to enable the water working medium to form closed circulation among the preheater c, the steam pocket e and the evaporator d, and operating the electric heater b to heat the circulating water working medium until saturated steam is generated; steam enters the superheater f through a heater inlet pipe 6, then sequentially passes through a high-pressure bypass 10, a reheater g and a low-pressure bypass 11 to preheat the superheater f, the reheater g and related pipelines, and is discharged into the condenser. The condensed water in the equipment and the pipeline is discharged through the water drainage device of the equipment and the pipeline. The electric heater b continuously heats the water working medium, and the temperature of the saturated steam is continuously generated and increased to be the system preheating temperature to the preset temperature by matching with the pressure adjustment, and the system temperature at the preheating water side is about 270 ℃ by taking binary molten salt as an example.
When the salt side system is heated to reach the preheating temperature (by electric tracing or other preheating modes), namely about 290 ℃ (taking binary molten salt as an example), the preheating process of the system is completed, molten salt can be introduced into the system to gradually generate superheated steam required by a steam turbine, and the generated steam is discharged into a condenser through a high-pressure 10 and low-pressure 11 bypass of the steam turbine before reaching the parameters allowing the steam turbine to enter.
When the system normally operates, the circulating water pump a is stopped and started, the valve k is turned off, the circulating pipe 5 is cut off, the electric heater b is stopped and the pipeline of the electric heater is cut off by closing the valve l, the valve m is opened, feed water enters the preheater c through the main pipeline and then enters the steam pocket e, saturated water in the steam pocket e enters the evaporator d through the steam pocket descending pipe 4, a steam-water mixture evaporated in the evaporator d enters the steam pocket e through the steam pocket ascending pipe 3 and is subjected to steam-water separation in the steam pocket e, and the obtained steam enters the superheater f to be reheated; a high-pressure bypass 10 and a low-pressure bypass 11 of the steam turbine are cut off, superheated steam at an outlet of a superheater f enters a high-pressure cylinder of the steam turbine through a superheater outlet pipeline 7 (namely a main steam pipeline) to do work, and exhausted steam of the high-pressure cylinder enters a reheater g through a reheater inlet pipe 8 (namely a low-temperature reheating steam pipe) to be reheated and then enters a steam turbine intermediate pressure cylinder through a reheater outlet pipe 9 (namely a high-temperature reheating steam pipe) to do work.
Example 2:
as shown in fig. 2, in this embodiment, a first connection line 12 is provided at the outlet of the drum e and connected to the inlet pipe 8 of the reheater, and a second connection line 13 is provided at the outlet pipe 9 of the reheater and connected to the condenser or deaerator. At this time, the preheating steam separated from the steam drum e passes through the preheating superheater f and the rear-end pipeline of the heater inlet pipe 6, passes through the first connecting pipeline 12 to preheat the reheater g, and is discharged through the second connecting pipeline 13. In normal operation, the first connecting line 12 and the second connecting line 13 are cut off. The other schemes are identical to example 1.
The present invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification, and to any novel method or process steps or any novel combination of features disclosed.
Claims (5)
1. A water side system of a solar photo-thermal power generation fused salt steam generation system is characterized by comprising a preheater, a steam drum, an evaporator, a superheater, a reheater and a starting unit, wherein the preheater is connected with a water supply unit through a preheater inlet pipe and is connected with the steam drum through a preheater outlet pipe, the steam drum is connected with the evaporator through a steam drum descending pipe and is connected with the superheater through a superheater inlet pipe, the evaporator is connected with the steam drum through a steam drum ascending pipe and is connected with the preheater inlet pipe through a starting circulating pipe, the superheater is connected with a steam inlet pipe of a high-pressure steam turbine cylinder through a superheater outlet pipe, the reheater is connected with a steam exhaust pipe of the high-pressure steam turbine cylinder through the reheater inlet pipe and is connected with a medium-pressure steam turbine cylinder through a reheater,
the starting unit comprises a starting circulating pump and an electric heater, the starting circulating pump is arranged in the starting circulating pipe in series, and the electric heater is arranged in an electric heater pipeline which is arranged in parallel with an inlet pipe or an outlet pipe of the preheater; the reheater inlet pipe is connected with the superheater inlet pipe or the superheater outlet pipe through a first pipeline, and the reheater outlet pipe is connected with the condenser or the deaerator through a second pipeline.
2. The water side system of the solar photo-thermal power generation molten salt steam generation system according to claim 1, wherein when a reheater inlet pipe is connected with a superheater inlet pipe, the first pipeline is a first connecting pipeline, and the second pipeline is a second connecting pipeline; when the reheater inlet pipe is connected with the superheater outlet pipe, the first pipeline is a high-pressure bypass, and the second pipeline is a low-pressure bypass.
3. The water side system of the solar photo-thermal power generation molten salt steam generation system according to claim 1, wherein when the electric heater is arranged in parallel on the preheater inlet pipe, a preheater inlet pipeline shut-off valve arranged in parallel with the electric heater is further arranged on the preheater inlet pipe; when the electric heater is arranged on the outlet pipe of the preheater in parallel, the outlet pipe of the preheater is also provided with a shutoff valve of the outlet pipeline of the preheater which is arranged in parallel with the electric heater.
4. The water side system of the solar photo-thermal power generation molten salt steam generation system according to claim 1, wherein the front end and the rear end of the starting circulating pump are provided with starting circulating pipeline shut-off valves, and the front end and the rear end of the electric heater are provided with electric heater pipeline shut-off valves.
5. The water side system of the solar photo-thermal power generation molten salt steam generation system according to claim 1, wherein a superheater outlet pipeline shut-off valve is arranged on the superheater outlet pipe, a reheater inlet pipeline shut-off valve is arranged on the reheater inlet pipe, and a reheater outlet pipeline shut-off valve is arranged on the reheater outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969576.7U CN210153753U (en) | 2019-06-26 | 2019-06-26 | Water side system of solar photo-thermal power generation fused salt steam generation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920969576.7U CN210153753U (en) | 2019-06-26 | 2019-06-26 | Water side system of solar photo-thermal power generation fused salt steam generation system |
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| CN210153753U true CN210153753U (en) | 2020-03-17 |
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| CN201920969576.7U Withdrawn - After Issue CN210153753U (en) | 2019-06-26 | 2019-06-26 | Water side system of solar photo-thermal power generation fused salt steam generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220177A (en) * | 2019-06-26 | 2019-09-10 | 东方电气集团东方锅炉股份有限公司 | The water side system and operation method of solar light-heat power-generation fused salt steam generating system |
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2019
- 2019-06-26 CN CN201920969576.7U patent/CN210153753U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220177A (en) * | 2019-06-26 | 2019-09-10 | 东方电气集团东方锅炉股份有限公司 | The water side system and operation method of solar light-heat power-generation fused salt steam generating system |
| CN110220177B (en) * | 2019-06-26 | 2024-01-30 | 东方电气集团东方锅炉股份有限公司 | Water side system of solar photo-thermal power generation molten salt steam generation system and operation method |
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