CN220750100U - Heating system of electrode boiler coupling screw expander - Google Patents
Heating system of electrode boiler coupling screw expander Download PDFInfo
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- CN220750100U CN220750100U CN202321737287.7U CN202321737287U CN220750100U CN 220750100 U CN220750100 U CN 220750100U CN 202321737287 U CN202321737287 U CN 202321737287U CN 220750100 U CN220750100 U CN 220750100U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 title claims description 4
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- 238000005859 coupling reaction Methods 0.000 title claims description 4
- 238000010248 power generation Methods 0.000 claims abstract description 38
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 description 15
- 230000005611 electricity Effects 0.000 description 10
- 238000004146 energy storage Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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Abstract
The utility model discloses a heating system of an electrode boiler coupled screw expander, and relates to the technical field of heating. The utility model includes thermodynamic and electric systems; the thermodynamic system comprises a high-voltage electrode boiler, a steam storage tank, a screw expander, a desuperheater and a steam net which are connected in sequence, wherein a temperature and pressure reducer is connected between the steam storage tank and the steam net, and a deaerator is connected between the screw expander and the high-voltage electrode boiler; the power system comprises a photovoltaic power generation, a wind power generation and a generator driven by a screw expander which are sequentially connected, and the generator is connected with a high-voltage electric power boiler. According to the utility model, the wind-solar power generation, an external power grid and a steam storage and expansion machine power generation system are organically combined by adopting the electrode heating boiler. The whole system realizes the real-time adjustment of the wind-solar power generation storage and thermal power generation heating system, and has theoretical research and engineering practical significance.
Description
Technical Field
The utility model belongs to the field of heat supply, and particularly relates to a heat supply system of an electrode boiler coupled screw expander.
Background
The screw expansion power machine uses medium such as medium and low pressure steam, hot water, hot liquid or gas-liquid two-phase fluid as power source, converts heat energy into power and drives mechanical equipment such as generator, fan, water pump, compressor, mixer, coal mill, pulverizer, etc., and is widely applied to the fields of electric power, chemical industry, petroleum, metallurgy, mine, light industry, heating district, large-scale market, hotel, etc. The exhaust steam of the expansion machine is used for heat, heating or combined heat and power generation. The working medium and the application scene are used, and the flexibility is high.
2020. The national targets of peak carbon removal and carbon neutralization 3060 are accelerated, and the energy transformation step is accelerated, which means that a clean, low-carbon, safe and efficient energy system is comprehensively established by 2060, and the consumption proportion of non-fossil energy is more than 80%. Wind-solar power generation is used as the energy type with the highest proportion in renewable energy sources, and faces significant development opportunities. The wind and light new installation capacity in the fourteen-five period is predicted to be about 5 multiplied by 108 kW, the wind and light new installation capacity in the fifteen-five period is predicted to be about 6.5 multiplied by 108 kW, and the wind and light installation scale in the 2050 year of China can be accumulated to be more than 60 multiplied by 108 kW. However, the light rejection rate and the wind rejection rate are still high, the light rejection rate of the 2022 Tibet reaches 19.5%, the wind rejection rate in Mongolian areas reaches 10.5%, and the development of the wind and light industry is seriously affected.
In view of the above problems, construction of a wind-solar power generation matched energy storage system is imperative. The existing energy storage modes mainly comprise battery energy storage, compressed air energy storage, electric heating steam energy storage and the like. The electric heating steam heat storage system is ideal energy storage equipment which operates in combination with the wind-light power generation system, and has high practical value.
The present utility model has been made in view of this.
Disclosure of Invention
The utility model aims to solve the technical problem of overcoming the defects of the prior art and providing a heating system of an electrode boiler coupled screw expander.
In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that:
a heating system of an electrode boiler coupled screw expander comprises a thermodynamic system and an electric system;
the thermodynamic system comprises a high-voltage electrode boiler, a steam storage tank, a screw expander, a desuperheater and a steam net which are connected in sequence, wherein a temperature and pressure reducer is connected between the steam storage tank and the steam net, and a deaerator is connected between the screw expander and the high-voltage electrode boiler;
the power system comprises a photovoltaic power generation module, a wind power generation module and a generator driven by a screw expander which are sequentially connected, and the generator and the high-voltage electric power boiler are connected to a power grid.
Optionally, the thermodynamic system further comprises an electric boiler steam inlet valve, an electric boiler steam outlet valve, a steam storage tank steam inlet valve and a steam pipeline, wherein the electric boiler steam inlet valve is connected with the high-voltage electrode boiler inlet, the high-voltage electrode boiler outlet c is connected with the electric boiler steam outlet valve, is connected with the steam storage tank steam inlet valve through the steam pipeline, is connected with the steam storage tank inlet, and is connected with the steam storage tank steam outlet valve through the steam storage tank outlet e.
Optionally, the next-stage branch of the steam pipeline is connected with a bypass regulating valve, is connected with an inlet of the temperature and pressure reducer, and is connected with a steam net through an outlet of the temperature and pressure reducer.
Optionally, the steam pipeline is connected with the steam inlet regulating valve through the final-stage branch, is connected with the inlet of the screw expander, is connected with the inlet of the attemperator through the steam outlet of the screw expander, and enters the steam net from the outlet h.
Optionally, another loop of the exhaust steam outlet of the screw expander is connected with a deaerator steam inlet valve, the deaerator steam inlet valve is connected with a deaerator main inlet, the other inlet is a water supplementing port, the deaerator is connected with a variable-frequency water supply pump, the variable-frequency water supply pump is connected with an electric boiler steam inlet valve, and the variable-frequency water supply pump inputs water from the inlet to the electric boiler steam inlet valve.
Optionally, the power system further comprises a first inverter, a second inverter, a first transformer, a second transformer and a third transformer, wherein the photovoltaic power generation module is connected with the first transformer from the first inverter through an outlet a, and the wind power generation module is connected with the second transformer from the second inverter through an outlet b.
Optionally, the high-voltage electric power boiler and the generator are connected with the power grid through a third transformer.
After the technical scheme is adopted, compared with the prior art, the utility model has the following beneficial effects, and of course, any product for implementing the utility model does not necessarily need to achieve all the following advantages at the same time:
by adopting the electrode heating boiler, wind-solar power generation, an external power grid and a steam storage and expansion machine power generation system are organically combined. In the electricity consumption low-valley stage of the power grid, the high-voltage electric power boiler absorbs the surplus electric quantity of photovoltaic power generation and wind power generation in the power grid, high-voltage water supply is heated into saturated steam, one path of saturated steam is expanded and depressurized through a screw expander and the temperature of the desuperheater is regulated, then the steam network is heated, and the other path of saturated steam enters a steam storage tank for storage; and in the power grid electricity consumption peak stage, the saturated steam in the steam storage tank is released, and a screw expander can be adopted for generating electricity and supplying heat or bypass temperature and pressure reduction and heat supply according to the heat supply requirement of the steam grid. The whole system realizes the real-time adjustment of the wind-solar power generation storage and thermal power generation heating system, and has theoretical research and engineering practical significance.
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
Drawings
The drawings in the following description are only examples of embodiments from which other drawings may be derived by those skilled in the art without the exercise of inventive faculty. In the drawings:
FIG. 1 is a flow chart of heating according to an embodiment of the utility model;
in the drawings, the list of components represented by the various numbers is as follows:
the photovoltaic power generation module 1, the first inverter 2, the first transformer 3, the wind power generation module 4, the second inverter 5, the second transformer 6, the third transformer 7, the power grid 8, the high-voltage electrode boiler 9, the electric boiler steam outlet valve 10, the steam storage tank steam inlet valve 11, the steam storage tank steam outlet valve 12, the steam storage tank 13, the bypass regulating valve 14, the steam inlet regulating valve 15, the screw expander 16, the generator 17, the desuperheater 18, the steam grid 19, the temperature and pressure reducer 20, the deaerator steam inlet valve 21, the deaerator 22, the variable-frequency water supply pump 23 and the electric boiler steam inlet valve 24.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, in this embodiment, a heating system of an electrode boiler coupled screw expander is provided, including a thermodynamic system and an electric system;
the thermodynamic system comprises a high-voltage electrode boiler 9, a steam storage tank 13, a screw expander 16, a desuperheater 18 and a steam net 19 which are sequentially connected, a temperature and pressure reducer 20 is connected between the steam storage tank 13 and the steam net 19, and a deaerator 22 is connected between the screw expander 16 and the high-voltage electrode boiler 9;
the power system comprises a photovoltaic power generation module 1, a wind power generation module 4 and a generator 17 driven by a screw expander 16 which are sequentially connected, wherein the generator 17 and a high-voltage electric power boiler 9 are connected to a power grid 8.
According to the utility model, the wind-solar power generation, an external power grid and a steam storage and expansion machine power generation system are organically combined by adopting an electrode heating boiler. In the electricity consumption low-valley stage of the power grid, the high-voltage electric power boiler absorbs the surplus electric quantity of photovoltaic power generation and wind power generation in the power grid, high-voltage water supply is heated into saturated steam, one path of saturated steam is expanded by the screw expander to drive the generator to generate electricity, reduce the pressure and the temperature of the attemperator to supply heat to the steam grid, and the other path of saturated steam enters a steam storage tank for storage; in the power consumption peak stage of the power grid, saturated steam in the steam storage tank is released, the deficiency is supplemented by a high-voltage electric boiler, and a screw expander can be used for generating power and supplying heat or bypass temperature and pressure reduction heat supply according to the heat supply requirement of the steam grid. The whole system realizes the real-time adjustment of the wind-solar power generation storage and thermal power generation heating system, and has theoretical research and engineering practical significance.
In this embodiment, the thermodynamic system further includes an electric boiler steam inlet valve 24, an electric boiler steam outlet valve 10, a steam storage tank steam inlet valve 11, and a steam pipeline, the electric boiler steam inlet valve 24 is connected to the inlet of the high-pressure electrode boiler 9, the outlet c of the high-pressure electrode boiler 9 is connected to the electric boiler steam outlet valve 10, and is connected to the steam storage tank steam inlet valve 11 via the steam pipeline, and is connected to the inlet of the steam storage tank 13, and is connected to the steam storage tank steam outlet valve 12 via the outlet e of the steam storage tank 13, the next-stage branch of the steam pipeline is connected to the bypass regulating valve 14, is connected to the inlet of the temperature-reducing pressure reducer 20, and is connected to the steam network 19 via the outlet of the temperature-reducing pressure reducer 20, the steam pipeline is connected to the steam inlet regulating valve 15 via the last-stage branch, is connected to the inlet of the screw expander 16, and is connected to the inlet of the desuperheater 18 via the outlet of the screw expander 16, and enters the steam network 19 from the outlet h, another loop of the screw expander 16 is connected to the deaerator steam inlet valve 21, the deaerator steam inlet valve 21 is connected to the main inlet, and the other inlet is the water-compensating port, and the deaerator 22 is connected to the variable frequency-conversion water feed pump 23, and the variable-frequency-conversion water feed valve 24 is connected to the electric boiler steam inlet valve 24, and is connected to the variable-stage branch.
The power system of this embodiment further includes a first inverter 2, a second inverter 5, a first transformer 3, a second transformer 6, and a third transformer 7, where the photovoltaic power generation module 1 is connected to the first transformer 3 from the first inverter 2 via an outlet a, the wind power generation module 4 is connected to the second transformer 6 from the second inverter 5 via an outlet b, the high-voltage electrode boiler 9 and the generator 17, and is connected to the grid 8 via the third transformer 7.
In the embodiment, the high-voltage electric power boiler can consume abundant renewable electric energy in the power grid, heat the feed water and produce high-voltage saturated steam. Belongs to core equipment for energy conversion between a thermodynamic system and an electric system.
In the embodiment, the steam storage tank stores saturated steam produced by the high-voltage electric power boiler in a low-loss mode so as to realize renewable heat supply by matching with the high-voltage electric power boiler, a screw expansion generator set and the like, and the capacity of absorbing renewable electric energy is improved for peak clipping and valley filling of a power grid.
In the embodiment, in the low electricity consumption stage of the power grid, a high-pressure electric power boiler heats high-pressure water to saturated steam, one path of the saturated steam is expanded by a screw expander to drive a generator to generate electricity and reduce pressure and a desuperheater to regulate temperature, then the steam grid is heated, and the other path of the saturated steam enters a steam storage tank to be stored; in the power consumption peak stage of the power grid, saturated steam in the steam storage tank is released, the deficiency is supplemented by a high-voltage electric boiler, and a screw expander can be used for generating power and supplying heat or bypass temperature and pressure reduction heat supply according to the heat supply requirement of the steam grid.
In the embodiment, in the low electricity consumption stage of the power grid, the high-voltage electric power boiler absorbs the surplus electricity of photovoltaic power generation and wind power generation in the power grid to heat high-voltage water supply into saturated steam; in the power grid electricity consumption peak stage, the high-voltage electric power boiler is stopped, or the part with insufficient heat supply of the steam storage tank is supplemented.
What is not described in detail in this specification is prior art known to those skilled in the art.
The present utility model is not limited to the above embodiments, and any person who can learn the structural changes made under the teaching of the present utility model can fall within the scope of the present utility model if the present utility model has the same or similar technical solutions. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.
Claims (7)
1. A heating system of an electrode boiler coupled screw expander, comprising: thermodynamic and electrical systems;
the thermodynamic system comprises a high-voltage electrode boiler (9), a steam storage tank (13), a screw expander (16), a desuperheater (18) and a steam net (19) which are sequentially connected, a temperature and pressure reducer (20) is connected between the steam storage tank (13) and the steam net (19), and a deaerator (22) is connected between the screw expander (16) and the high-voltage electrode boiler (9);
the power system comprises a photovoltaic power generation module (1), a wind power generation module (4) and a generator (17) driven by a screw expander (16) which are sequentially connected, wherein the generator (17) and a high-voltage electric power boiler (9) are connected to a power grid (8).
2. The heating system of the electrode boiler coupling screw expander according to claim 1, wherein the thermodynamic system further comprises an electric boiler steam inlet valve (24), an electric boiler steam outlet valve (10), a steam storage tank steam inlet valve (11) and a steam pipeline, the electric boiler steam inlet valve (24) is connected with an inlet of the high-pressure electrode boiler (9), an outlet of the high-pressure electrode boiler (9) is connected with the electric boiler steam outlet valve (10) and is connected with the steam storage tank steam inlet valve (11) through the steam pipeline and is connected with an inlet of the steam storage tank (13) and is connected with the steam storage tank steam outlet valve (12) through an outlet of the steam storage tank (13).
3. The heating system of the electrode boiler coupling screw expander according to claim 2, wherein a lower-stage branch of the steam pipeline is connected with a bypass regulating valve (14), is connected with an inlet of a temperature-reducing pressure reducer (20), and is connected with a steam net (19) through an outlet of the temperature-reducing pressure reducer (20).
4. A heating system of an electrode boiler coupled screw expander according to claim 2, wherein the steam pipe is connected to the inlet air regulating valve (15) via a final branch, to the inlet of the screw expander (16), to the inlet of the desuperheater (18) via the outlet of the exhaust air of the screw expander (16), and from the outlet to the steam net (19).
5. The heating system of the electrode boiler coupled screw expander according to claim 2, wherein the other loop of the exhaust steam outlet of the screw expander (16) is connected with a deaerator steam inlet valve (21), the deaerator steam inlet valve (21) is connected with a main inlet of a deaerator (22), the other inlet is a water supplementing port, the deaerator (22) is connected with a variable-frequency water supply pump (23), the variable-frequency water supply pump (23) is connected with an electric boiler steam inlet valve (24), and water is input to the electric boiler steam inlet valve (24) from the inlet by the variable-frequency water supply pump (23).
6. The heating system of the electrode boiler coupled screw expander of claim 1, wherein the power system further comprises a first inverter (2), a second inverter (5), a first transformer (3), a second transformer (6) and a third transformer (7), the photovoltaic power generation module (1) is connected with the first transformer (3) from the first inverter (2) through an outlet, and the wind power generation module (4) is connected with the second transformer (6) from the second inverter (5) through an outlet.
7. A heating system of an electrode boiler coupled screw expander according to claim 6, characterized in that the high voltage electrode boiler (9) and the generator (17) are connected to the grid (8) via a third transformer (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321737287.7U CN220750100U (en) | 2023-07-05 | 2023-07-05 | Heating system of electrode boiler coupling screw expander |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321737287.7U CN220750100U (en) | 2023-07-05 | 2023-07-05 | Heating system of electrode boiler coupling screw expander |
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| CN220750100U true CN220750100U (en) | 2024-04-09 |
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| CN202321737287.7U Active CN220750100U (en) | 2023-07-05 | 2023-07-05 | Heating system of electrode boiler coupling screw expander |
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2023
- 2023-07-05 CN CN202321737287.7U patent/CN220750100U/en active Active
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