CN218442832U - Electric heating steam combined supply system for solar gradient utilization - Google Patents
Electric heating steam combined supply system for solar gradient utilization Download PDFInfo
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Abstract
The utility model belongs to the technical field of solar energy utilizes, a electric heat vapour antithetical couplet who solar energy step utilized supplies system is related to. The system comprises a first hot water supply subsystem, a heat exchange subsystem, a second hot water supply subsystem, a steam supply power generation subsystem and a photovoltaic power generation subsystem, wherein the photovoltaic power generation subsystem is respectively connected with the first hot water supply subsystem, the heat exchange subsystem, the second hot water supply subsystem and the steam supply power generation subsystem. The utility model discloses but step utilization solar energy, usable solar energy gradient provides the hot water of high, well, low temperature, can also gradient provide the steam of high, well, low parameter to utilize the steam of production to generate electricity, make full use of solar energy, and the small investment of system, it is with low costs. And when the sunlight is insufficient, standby equipment is arranged in each subsystem to ensure the supply of hot water and steam with various temperatures and parameters, and the normal operation of the system is ensured.
Description
Technical Field
The utility model belongs to the technical field of solar energy utilizes, concretely relates to electric heat vapour antithetical couplet who solar energy step utilized confession system.
Background
The heavy use and excessive exploitation of coal and oil cause serious environmental pollution and energy shortage. Environmental pollution and energy crisis seriously threaten the survival and development of human beings, so that how to utilize solar energy and efficiently utilize the solar energy becomes a topic worthy of research.
At present, some researches on utilization of solar energy exist, for example, chinese patent with application number cn202010221321.X, which discloses a solar air source heat pump triple co-generation system and a use method thereof, the system comprises an air source heat pump mechanism, a solar heat collection mechanism, a first heat exchanger and a second heat exchanger, the air source heat pump mechanism comprises a compressor, a four-way reversing valve, an indoor unit air-cooled heat exchanger, a drying pipe, a throttling device and an outdoor unit air-cooled heat exchanger, the solar heat collection mechanism comprises a low-temperature water tank, a first valve, a high-temperature constant-temperature water tank, a solar heat collection plate, a second valve, a third water pump and a fourth water pump, the interior of the low-temperature water tank is connected with an inner cavity of the first heat exchanger through the second water pump, and the interior of the high-temperature constant-temperature water tank is connected with an inner cavity of the second heat exchanger through the first water pump. The combined supply system in the patent utilizes solar energy to realize triple supply of heating, cooling and domestic hot water, but the combined supply system in the patent cannot realize the supply of hot water with different temperatures and steam with different parameters, cannot realize power generation, and still does not carry out more efficient cascade utilization on the solar energy.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that exists among the prior art, the utility model provides an electricity heat vapour allies oneself with confession system that solar energy step utilized, this system can realize the supply of different temperature hot water, different parameter steam, still can realize the electricity generation, can carry out the efficient step to solar energy and utilize.
The utility model adopts the following technical scheme:
an electric-heat-steam combined supply system for solar energy gradient utilization comprises a first hot water supply subsystem, a heat exchange subsystem, a second hot water supply subsystem, a steam supply power generation subsystem and a photovoltaic power generation subsystem, wherein the photovoltaic power generation subsystem is respectively connected with the first hot water supply subsystem, the heat exchange subsystem, the second hot water supply subsystem and the steam supply power generation subsystem;
the first hot water supply subsystem comprises a water source supply module, a solar heat collector, a low-temperature hot water storage module and a medium-temperature hot water storage module;
the solar heat collector comprises a solar primary heating submodule and a solar secondary heating submodule which are connected through pipelines, the water source supply module is connected with the solar primary heating submodule through a pipeline, the solar primary heating submodule is also connected with the low-temperature hot water storage module through a pipeline, and the solar secondary heating submodule is also connected with the medium-temperature hot water storage module through a pipeline;
the heat exchange subsystem comprises a light-gathering heat collector, a molten salt storage tank and a heat exchanger, the light-gathering heat collector is connected with the molten salt storage tank through a pipeline, the light-gathering heat collector is also connected with a heat source end pipeline of the heat exchanger, an inlet of a heat exchange end of the heat exchanger is connected with a solar secondary heating submodule through a pipeline, an outlet of the heat exchange end of the heat exchanger is connected with a high-temperature hot water storage module in the second hot water supply subsystem through a pipeline, and an outlet of the heat exchange end of the heat exchanger is also connected with a steam supply power generation subsystem through a pipeline;
the steam supply power generation subsystem comprises a steam generator and a back pressure turbine which are connected through pipelines, and further comprises a power generator connected with the back pressure turbine, wherein a high-pressure steam output pipeline is arranged at the pipeline joint of the steam generator and the back pressure turbine, the back pressure turbine is provided with a body air suction opening and a turbine outlet, the body air suction opening is connected with a medium-pressure steam output pipeline, and the turbine outlet is connected with a low-pressure steam output pipeline.
Preferably, the photovoltaic power generation subsystem comprises a photovoltaic power generation module, an energy storage module and a power transmission module which are connected in sequence, and the power transmission module is connected with the external power utilization module.
Preferably, the power transmission module is further connected with an external power taking module.
According to the optimal scheme, an output pipeline and an input pipeline are branched from a connecting pipeline of the water source supply module and the solar primary heating submodule, a first valve is arranged on the output pipeline, a second valve is arranged on the input pipeline, a third valve is arranged between the output pipeline and the input pipeline at the position of the connecting pipeline of the water source supply module and the solar primary heating submodule, the low-temperature heat pump is respectively connected with the output pipeline and the input pipeline, and the low-temperature heat pump is further connected with the photovoltaic power generation subsystem and the generator.
As a preferred scheme, the solar secondary heating submodule is connected with a first inlet pipeline of the thermal deaerator, an outlet of the thermal deaerator is connected with an inlet pipeline of a heat exchange end of the heat exchanger, and a second inlet of the thermal deaerator is connected with a low-pressure steam output pipeline through a pipeline.
As the preferred scheme, the heat exchange subsystem further comprises an electrode type molten salt boiler, the electrode type molten salt boiler is connected with the molten salt storage tank through a pipeline, and the electrode type molten salt boiler is connected with the photovoltaic power generation subsystem and the power generator.
According to the preferable scheme, the outlet of the heat exchange end of the heat exchanger is further connected with an electric steam boiler through a pipeline, the electric steam boiler is further connected with a high-pressure steam output pipeline through a pipeline, and the electric steam boiler is further connected with a photovoltaic power generation subsystem and a generator.
As preferred scheme, low temperature hot water storage module is equipped with the low temperature working shaft including low temperature heat storage water tank, the low temperature hot water output pipeline that links to each other on the low temperature hot water output pipeline, and the low temperature working shaft is connected with photovoltaic power generation subsystem and generator.
Preferably, the medium-temperature hot water storage module comprises a medium-temperature hot water storage tank and a medium-temperature hot water output pipeline which are connected, a medium-temperature water supply pump is arranged on the medium-temperature hot water output pipeline, and the medium-temperature water supply pump is connected with the photovoltaic power generation subsystem and the generator.
As the preferred scheme, the high-temperature hot water storage module comprises a high-temperature hot water storage tank and a high-temperature hot water output pipeline which are connected, a high-temperature water supply pump is arranged on the high-temperature hot water output pipeline, and the high-temperature water supply pump is connected with the photovoltaic power generation subsystem and the generator.
The utility model has the advantages that:
the utility model discloses but the step utilizes solar energy, and usable solar energy gradient provides the hot water of high, medium, low temperature, can also provide the steam of high, medium, low parameter by the gradient to the steam that utilizes the production generates electricity, make full use of solar energy.
The solar energy primary heating submodule in the solar heat collector is used for primarily heating water so as to obtain low-temperature hot water, and the solar energy secondary heating submodule in the solar heat collector is used for further heating the low-temperature hot water so as to obtain medium-temperature hot water. Because solar collector has the temperature restriction to the heating of water, consequently the utility model discloses in set up the heat transfer subsystem, heat the fused salt through the spotlight heat collector to fused salt after through the heating carries out the heat transfer to middle temperature hot water, with further improvement temperature, and the running cost of spotlight heat collector is higher than solar collector's running cost, consequently the utility model discloses the hydrothermal heating of low temperature hot water and middle temperature is passed through solar collector and is carried out, and the spotlight heat collector only carries out the hydrothermal heating of high temperature, thereby has reduced the running cost of system.
The utility model discloses a steam generator, back pressure turbine can produce the steam of high, medium, low parameter to the steam of medium, low parameter pass through the body extraction opening that back pressure turbine self set up, steam turbine export output can, in back pressure turbine production, still can directly drive the generator and generate electricity in the time of low parameter steam moreover, really realized abundant, the step utilization of the energy, and the small investment of system, it is with low costs.
The utility model discloses well photovoltaic power generation subsystem is including photovoltaic power generation module, energy storage module, the power transmission module that connects gradually, and power transmission module is connected with outside power consumption module, and power transmission module still gets the power module with the outside and is connected. Namely the utility model discloses the medium photovoltaic power generation system can utilize photovoltaic power generation's electric energy storage in energy storage module with standby, still exports to outside power consumption module, when the internal electric energy of confession system is not enough, still can get the electricity through the outside and get the electric module.
The utility model discloses in set up the low temperature heat pump, through the switching of controlling first valve, second valve, third valve when the sun illumination is not enough to make the low temperature heat pump heat water as reserve heat source, because the low temperature heat pump is connected with the photovoltaic power generation subsystem, consequently whenever all can work through the electricity of energy storage module storage, or through getting the low ebb electricity that the electric module acquireed from the outside and carrying out work, guaranteed the normal operating of system.
The utility model discloses in set up heating power oxygen-eliminating device to oxygen to in the hot water is got rid of, has established the basis for subsequent steam production and electricity generation. And the heat source of the thermal deaerator is low parameter steam output by the back pressure turbine so as to realize more full utilization of energy.
The utility model discloses well heat transfer subsystem has still set up electrode formula fused salt boiler, and electrode formula fused salt boiler passes through the tube coupling with the fused salt storage tank, and electrode formula fused salt boiler is connected with photovoltaic power generation subsystem and generator, therefore electrode formula fused salt boiler also can heat the fused salt as reserve heat source when solar illumination is insufficient, has guaranteed the normal operating of system.
The utility model discloses well heat exchanger's heat transfer end outlet department still with electric steam boiler tube coupling, electric steam boiler still with high-pressure steam output pipeline tube coupling, electric steam boiler still is connected with photovoltaic power generation subsystem and generator. When the sunlight is insufficient and the water temperature is not high enough (it should be noted here that the situation that the electrode type molten salt boiler still does not operate although the sunlight is insufficient is considered here), because the power of the steam generator is limited, steam with required parameters cannot be generated, at this time, high-parameter steam is generated by an electric steam boiler with higher power, and is collected and output with the steam generated by the steam generator through a high-pressure steam output pipeline.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric-steam combined supply system for solar cascade utilization according to the present invention;
fig. 2 is a flow chart of an electric heat and steam combined supply method for solar cascade utilization according to the present invention;
in the figure: 1. a softening water tank, 2, a low-temperature water feeding pump, 3, a low-temperature heat pump, 4-1, a first valve, 4-2, a third valve, 4-3, a second valve, 5, a solar heat collector, 6, a low-temperature heat storage water tank, 7, a low-temperature water supply pump, 8, a medium-temperature heat storage water tank, 9, a medium-temperature water supply pump, 10, a medium-temperature water feeding pump, 11, a thermal deaerator, 111, a first inlet of the thermal deaerator, 112, an outlet of the thermal deaerator, 113, a second inlet of the thermal deaerator, 12, a heat exchanger, 121, a heat exchanger heat source end inlet, 122, a heat exchanger heat source end outlet, 123, a heat exchanger heat exchange end outlet, 124, a heat exchanger heat exchange end inlet, 13, a light-gathering heat collector, 14, an electrode type molten salt boiler, 15 and a molten salt storage tank, 16, a low-temperature molten salt pump, 17, a high-temperature molten salt pump, 18, a high-temperature water storage tank, 19, a high-temperature water supply pump, 20, a steam generator, 21, an electric steam boiler, 22, a back pressure steam turbine, 221, an inlet of the back pressure steam turbine, 222, a body extraction opening, 223, a steam turbine outlet, 23, a generator, 24, a photovoltaic power generation module, 25, an energy storage module, 26, an electric power transmission module, a softened water pipeline, b, a low-temperature water return pipeline, c, a low-temperature hot water output pipeline, d, a medium-temperature water return pipeline, e, a medium-temperature hot water output pipeline, f, a high-temperature water return pipeline, g, a high-parameter steam output pipeline, h, a medium-parameter steam output pipeline, k, a low-parameter steam output pipeline, and L, high-temperature hot water output pipeline.
Detailed Description
The following description is provided for illustrative embodiments of the present invention, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
The first embodiment is as follows:
referring to fig. 1, the embodiment provides an electric heat and steam combined supply system for solar cascade utilization, which includes a first hot water supply subsystem, a heat exchange subsystem, a second hot water supply subsystem, a steam supply power generation subsystem, and a photovoltaic power generation subsystem, where the photovoltaic power generation subsystem is respectively connected to the first hot water supply subsystem, the heat exchange subsystem, the second hot water supply subsystem, and the steam supply power generation subsystem to provide electric energy, including providing electric energy for each pump body, and also including providing electric energy for a low-temperature heat pump 3, an electrode type molten salt boiler 14, and an electric steam boiler 21, which will be described later;
the first hot water supply subsystem comprises a water source supply module, a solar heat collector 5, a low-temperature hot water storage module and a medium-temperature hot water storage module;
in this embodiment, the water source supply module includes a softened water pipe a, a softened water tank 1, and a low-temperature water feed pump 2. The low-temperature hot water storage module comprises a low-temperature heat storage water tank 6, a low-temperature hot water output pipeline c and a low-temperature water supply pump 7 arranged on the low-temperature hot water output pipeline c. The medium-temperature hot water storage module comprises a medium-temperature hot water storage tank 8, a medium-temperature hot water output pipeline e and a medium-temperature water supply pump 9 arranged on the medium-temperature hot water output pipeline e.
The solar heat collector 5 comprises a solar primary heating submodule and a solar secondary heating submodule which are connected through pipelines, a softening water tank 1 in the water source supply module is connected with the solar primary heating submodule through a pipeline, a low-temperature water feed pump 2 and a low-temperature water return pipeline b are arranged at the pipeline joint, the solar primary heating submodule is further connected with a low-temperature heat storage water tank 6 in the low-temperature hot water storage module through a pipeline, and the solar secondary heating submodule is further connected with a medium-temperature heat storage water tank 8 in the medium-temperature hot water storage module through a pipeline.
The heat exchange subsystem comprises a light-focusing heat collector 13, a molten salt storage tank 15 and a heat exchanger 12, wherein the light-focusing heat collector 5 is connected with the molten salt storage tank 15 through a pipeline, the light-focusing heat collector 13 is further connected with a heat source end pipeline of the heat exchanger 12, a heat exchange end inlet 124 of the heat exchanger is connected with a solar secondary heating submodule through a pipeline, a heat exchange end outlet 123 of the heat exchanger is connected with a high-temperature hot water storage module in the second hot water supply subsystem through a pipeline, and a heat exchange end outlet 123 of the heat exchanger is further connected with a steam supply power generation subsystem through a pipeline;
the steam supply power generation subsystem comprises a steam generator 20 and a back pressure turbine 22 which are connected through pipelines, and further comprises a power generator 23 connected with the back pressure turbine 22, wherein a high-parameter steam output pipeline g is arranged at the pipeline connection position of the steam generator 20 and the back pressure turbine 22, the back pressure turbine 22 is provided with a body extraction opening 222 and a turbine outlet 223, the body extraction opening 222 is connected with a parameter steam output pipeline h, and the turbine outlet 223 is connected with a low-parameter steam output pipeline k. Wherein the temperature and pressure of the low parameter steam are lower, and the temperature and pressure of the high parameter steam are higher.
The utility model discloses but the step utilizes solar energy, and usable solar energy gradient provides the hot water of high, medium, low temperature, can also provide the steam of high, medium, low parameter by the gradient to the steam that utilizes the production generates electricity, make full use of solar energy.
The water is primarily heated through the solar primary heating submodule in the solar heat collector 5, so that low-temperature hot water is obtained, and the low-temperature hot water is further heated through the solar secondary heating submodule in the solar heat collector 5, so that medium-temperature hot water is obtained. Because solar collector 5 has the temperature restriction to the heating of water, consequently the utility model discloses in set up the heat transfer subsystem, heat the fused salt through spotlight heat collector 13 to fused salt through after the heating carries out the heat transfer to middle temperature hot water, with further improvement temperature, and spotlight heat collector 13's running cost is higher than solar collector 5's running cost, consequently the utility model discloses middle and low temperature hot water and the hydrothermal heating of middle and high temperature are carried out through solar collector 5, and spotlight heat collector 13 only carries out the hydrothermal heating of high temperature, thereby has reduced the running cost of system.
The utility model discloses a steam generator 20, back pressure turbine 22 can produce the steam of high, medium, low parameter to the steam of medium, low parameter pass through back pressure turbine 22 self set up body extraction opening 222, turbine export 223 output can, in back pressure turbine 22 production moreover, still can directly drive generator 23 in the time of low parameter steam and generate electricity, have really realized abundant, the step utilization of the energy.
The photovoltaic power generation subsystem comprises a photovoltaic power generation module 24, an energy storage module 25 and a power transmission module 26 which are sequentially connected, the power transmission module 26 is connected with an external power utilization module, and the power transmission module 26 is further connected with an external power utilization module. That is, the utility model discloses well photovoltaic power generation system can utilize photovoltaic power generation's electric energy storage in energy storage module 25 for standby, still exports to outside power consumption module, when the confession system internal electric energy is not enough, still can get the electricity through the outside and get the electric module.
It should be further noted that in this embodiment, the output end of the generator 23 is connected to the photovoltaic power generation subsystem, and the generated electric energy can be supplied to each subsystem in the cogeneration system, and can also be transmitted to the energy storage module 25 for storage.
More specifically:
an output pipeline and an input pipeline are branched from a connecting pipeline of the softening water tank 1 and the solar primary heating submodule in the water source supply module, a first valve 4-1 is arranged on the output pipeline, a second valve 4-2 is arranged on the input pipeline, a third valve 4-2 is arranged between the output pipeline and the input pipeline at the connecting pipeline of the softening water tank 1 and the solar primary heating submodule, the low-temperature heat pump 3 is respectively connected with the output pipeline and the input pipeline, and the low-temperature heat pump 3 is further connected with the photovoltaic power generation subsystem and the generator 23.
Namely, when the sunlight is insufficient, the first valve 4-1 and the second valve 4-3 are controlled to be opened, and the third valve 4-2 is controlled to be closed, so that the low-temperature heat pump 3 is used as a standby heat source to heat water firstly, and the low-temperature heat pump 3 is connected with the photovoltaic power generation subsystem, so that the low-temperature heat pump can work by the electricity stored in the energy storage module 25 or the off-peak electricity obtained from the external electricity taking module whenever, and the normal operation of the system is ensured. When the sunlight is sufficient, the first valve 4-1 and the second valve 4-3 are closed, and the third valve 4-2 is opened.
The solar secondary heating submodule is connected with a first inlet 111 of the thermal deaerator through a pipeline, an outlet 112 of the thermal deaerator is connected with an inlet 124 of a heat exchange end of the heat exchanger through a pipeline, and a second inlet 113 of the thermal deaerator is connected with a low-parameter steam output pipeline k through a pipeline.
Namely, the utility model discloses in set up heating power oxygen-eliminating device 11 to oxygen to hot water is got rid of, has established the basis for subsequent steam production and electricity generation. And the heat source of the thermal deaerator 11 is low-parameter steam output by the back pressure turbine 22, so that energy can be more fully utilized.
The heat exchange subsystem further comprises an electrode type molten salt boiler 14, the electrode type molten salt boiler 14 is connected with the molten salt storage tank 15 through a pipeline, and the electrode type molten salt boiler 14 is connected with the photovoltaic power generation subsystem and the generator 23.
Namely, the utility model discloses well heat transfer subsystem has still set up electrode formula fused salt boiler 14, and electrode formula fused salt boiler 14 passes through the tube coupling with fused salt storage tank 15, and electrode formula fused salt boiler 14 is connected with photovoltaic power generation subsystem and generator 23, therefore electrode formula fused salt boiler 14 also can heat the fused salt as reserve heat source when the sun illumination is insufficient, has guaranteed the normal operating of system.
The outlet 123 of the heat exchange end of the heat exchanger is also connected with an electric steam boiler 21 through a pipeline, the electric steam boiler 21 is also connected with a high-parameter steam output pipeline g through a pipeline, and the electric steam boiler 21 is also connected with a photovoltaic power generation subsystem and a generator 23.
Namely, the utility model discloses well heat exchanger's heat transfer end outlet 123 department still with electric steam boiler 21 tube coupling, electric steam boiler 21 still with high-pressure steam output pipeline g tube coupling, electric steam boiler 21 still is connected with photovoltaic power generation subsystem and generator 23. When the sunlight is not sufficient and the water temperature is not high enough (it should be noted here that, the situation that the electrode type molten salt boiler 14 still does not operate although the sunlight is not sufficient is considered here), because the power of the steam generator 20 is limited, steam with required parameters cannot be generated, at this time, high-parameter steam is generated by the electric steam boiler 21 with higher power, and is converged and output with the steam generated by the steam generator 20 through the high-pressure steam output pipe g.
Referring to fig. 1, a medium-low temperature water return pipeline b, a medium-temperature water return pipeline d and a high-temperature water return pipeline f all play a water return role.
Example two:
referring to fig. 2, the present embodiment provides an electricity-heat-steam co-generation method for solar cascade utilization, based on which the electricity-heat-steam co-generation system for solar cascade utilization includes the following steps:
s1, a water source supply module supplies water source to a solar primary heating submodule in a solar heat collector for primary heating to obtain low-temperature hot water;
s2, conveying part of the low-temperature hot water to a low-temperature hot water storage module for storage, conveying the rest of the low-temperature hot water to a solar secondary heating submodule for further heating, and obtaining medium-temperature hot water;
s3, conveying part of the medium-temperature hot water to a medium-temperature hot water storage module for storage, conveying the rest of the medium-temperature hot water to a heat exchanger in a heat exchange subsystem, and exchanging heat with the molten salt heated by the light-focusing heat collector to obtain high-temperature hot water;
s4, conveying part of the high-temperature hot water to a high-temperature hot water storage module for storage, and conveying the rest of the high-temperature hot water to a steam generator for evaporation to obtain high-parameter steam;
and S5, outputting part of high-parameter steam through a high-parameter steam output pipeline, conveying the rest of high-parameter steam to the back pressure turbine, outputting the parameter steam through a parameter steam output pipeline by a body air extraction opening of the back pressure turbine, outputting low-parameter steam through a low-parameter steam output pipeline by a turbine outlet of the back pressure turbine, and driving a generator to generate power while outputting the steam by the back pressure turbine.
In the step S3, thermal deoxygenation is carried out on the rest of the medium-temperature hot water through a thermal deoxygenator before the rest of the medium-temperature hot water is conveyed to a heat exchanger in the heat exchange subsystem, and the thermal source of the thermal deoxygenator is low-parameter steam output by a steam turbine outlet of the back pressure steam turbine through a low-parameter steam output pipeline.
It should be noted that, the electric-heat-steam combined supply method for solar cascade utilization provided in this embodiment is similar to the embodiment, and is not described herein again.
The above-mentioned embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the technical solution of the present invention is not limited by the above-mentioned embodiments, and various modifications and improvements made by those skilled in the art can be made without departing from the spirit of the present invention.
Claims (10)
1. An electric-heat-steam combined supply system for solar energy gradient utilization is characterized by comprising a first hot water supply subsystem, a heat exchange subsystem, a second hot water supply subsystem, a steam supply power generation subsystem and a photovoltaic power generation subsystem, wherein the photovoltaic power generation subsystem is respectively connected with the first hot water supply subsystem, the heat exchange subsystem, the second hot water supply subsystem and the steam supply power generation subsystem;
the first hot water supply subsystem comprises a water source supply module, a solar heat collector, a low-temperature hot water storage module and a medium-temperature hot water storage module;
the solar heat collector comprises a solar primary heating submodule and a solar secondary heating submodule which are connected through pipelines, the water source supply module is connected with the solar primary heating submodule through a pipeline, the solar primary heating submodule is also connected with the low-temperature hot water storage module through a pipeline, and the solar secondary heating submodule is also connected with the medium-temperature hot water storage module through a pipeline;
the heat exchange subsystem comprises a light-gathering heat collector, a molten salt storage tank and a heat exchanger, the light-gathering heat collector is connected with the molten salt storage tank through a pipeline, the light-gathering heat collector is also connected with a heat source end pipeline of the heat exchanger, an inlet of a heat exchange end of the heat exchanger is connected with a solar secondary heating submodule through a pipeline, an outlet of the heat exchange end of the heat exchanger is connected with a high-temperature hot water storage module in the second hot water supply subsystem through a pipeline, and an outlet of the heat exchange end of the heat exchanger is also connected with a steam supply power generation subsystem through a pipeline;
the steam supply power generation subsystem comprises a steam generator and a back pressure turbine which are connected through pipelines, and further comprises a generator connected with the back pressure turbine, wherein a high-parameter steam output pipeline is arranged at the pipeline joint of the steam generator and the back pressure turbine, the back pressure turbine is provided with a body air suction opening and a steam turbine outlet, the body air suction opening is connected with the medium-parameter steam output pipeline, and the steam turbine outlet is connected with the low-parameter steam output pipeline.
2. The system of claim 1, wherein the photovoltaic power generation subsystem comprises a photovoltaic power generation module, an energy storage module and a power transmission module which are connected in sequence, and the power transmission module is connected with an external power utilization module.
3. The system of claim 2, wherein the power transmission module is further connected to an external power module.
4. The system according to claim 3, wherein an output pipeline and an input pipeline are branched from the connecting pipeline of the water source supply module and the solar primary heating submodule, a first valve is arranged on the output pipeline, a second valve is arranged on the input pipeline, a third valve is arranged between the output pipeline and the input pipeline at the connecting pipeline of the water source supply module and the solar primary heating submodule, the low-temperature heat pump is respectively connected with the output pipeline and the input pipeline, and the low-temperature heat pump is further connected with the photovoltaic power generation subsystem and the generator.
5. The solar cascade utilization electric heat and steam combined supply system according to claim 3, wherein the solar secondary heating submodule is connected with a first inlet pipeline of the thermal deaerator, an outlet of the thermal deaerator is connected with an inlet pipeline of a heat exchange end of the heat exchanger, and a second inlet of the thermal deaerator is connected with a low-parameter steam output pipeline.
6. The electric-heat-steam combined supply system for solar gradient utilization according to claim 3, characterized in that the heat exchange subsystem further comprises an electrode type molten salt boiler, the electrode type molten salt boiler is connected with the molten salt storage tank through a pipeline, and the electrode type molten salt boiler is connected with the photovoltaic power generation subsystem and the generator.
7. The solar cascade utilization electric heat and steam combined supply system according to claim 3, wherein the outlet of the heat exchange end of the heat exchanger is further connected with an electric steam boiler through a pipeline, the electric steam boiler is further connected with a high-parameter steam output pipeline through a pipeline, and the electric steam boiler is further connected with a photovoltaic power generation subsystem and a generator.
8. The combined heat and power system according to claim 1, wherein the low-temperature hot water storage module comprises a low-temperature hot water storage tank and a low-temperature hot water output pipeline which are connected, a low-temperature water supply pump is arranged on the low-temperature hot water output pipeline, and the low-temperature water supply pump is connected with the photovoltaic power generation subsystem and the generator.
9. The system of claim 1, wherein the medium-temperature hot water storage module comprises a medium-temperature hot water storage tank and a medium-temperature hot water output pipeline which are connected, a medium-temperature water supply pump is arranged on the medium-temperature hot water output pipeline, and the medium-temperature water supply pump is connected with the photovoltaic power generation subsystem and the generator.
10. The combined heat and power system as claimed in claim 1, wherein the high temperature hot water storage module comprises a high temperature hot water storage tank and a high temperature hot water output pipeline connected with each other, and a high temperature water supply pump is disposed on the high temperature hot water output pipeline and connected with the photovoltaic power generation subsystem and the generator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222733064.5U CN218442832U (en) | 2022-10-18 | 2022-10-18 | Electric heating steam combined supply system for solar gradient utilization |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222733064.5U CN218442832U (en) | 2022-10-18 | 2022-10-18 | Electric heating steam combined supply system for solar gradient utilization |
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| CN202222733064.5U Active CN218442832U (en) | 2022-10-18 | 2022-10-18 | Electric heating steam combined supply system for solar gradient utilization |
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2022
- 2022-10-18 CN CN202222733064.5U patent/CN218442832U/en active Active
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