CN213932167U - Energy storage heat exchange control system - Google Patents
Energy storage heat exchange control system Download PDFInfo
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- CN213932167U CN213932167U CN202022935549.3U CN202022935549U CN213932167U CN 213932167 U CN213932167 U CN 213932167U CN 202022935549 U CN202022935549 U CN 202022935549U CN 213932167 U CN213932167 U CN 213932167U
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Abstract
The application relates to an energy storage and heat exchange control system, which relates to the field of electric energy-saving equipment and comprises a first circulating pipeline, a heat exchanger and a second circulating pipeline, wherein the first circulating pipeline is communicated to the heat exchanger and used for storing heat energy and providing heat energy for the heat exchanger; the second circulating pipeline is communicated to the heat exchanger and the heat exchange station and is used for continuously providing a heat source for the heat exchange station; the first circulating pipeline comprises an electric heater, a first pipeline communicated with the electric heater, and a heat storage tank communicated to the first pipeline; the first pipeline is communicated with a heating circulating pump; the heat storage tank stores a heat storage medium therein. The power grid peak-valley difference adjusting method has the effects of adjusting the power grid peak-valley difference in the power system and improving the power utilization quality.
Description
Technical Field
The application relates to the field of electric energy-saving equipment, in particular to an energy storage and heat exchange control system.
Background
The grid peak-valley difference is the difference between the maximum load of 100% and the minimum load of the percentage of the maximum load in one cycle time of the power system, and is generally called as the daily peak-valley difference in a daily unit, and also includes the quarterly peak-valley difference and the annual peak-valley difference. The peak-valley difference of the power grid is too large, so that the power grid is not stable enough to influence the safe operation; the peak shaving unit is frequently started and stopped, and a lot of start and stop fuel oil and stable combustion oil can be consumed; the load of the operating thermal generator set is unstable, and the thermal load needs to be adjusted in real time, so that the economic index is reduced; the power plant must increase the spare capacity in order to have sufficient peak shaver requirements. In order to reduce the peak-valley difference of the power grid, the currently adopted method adopts time-of-use electricity price, sets up a water pumping energy storage power station, installs a peak regulation unit and the like to adjust the peak-valley difference. The time-of-use electricity price induces the electricity consumption of the users to be balanced as much as possible in the interest, but the end users have own electricity consumption rules and are limited in inducing effect, and a large amount of manpower and material resources are consumed for construction when a water pumping energy storage power station is designed or a peak shaving unit is installed, so that the time-of-use electricity price is not economical.
SUMMERY OF THE UTILITY MODEL
In order to effectively adjust the power grid peak-valley difference in the power system, improve the quality of power consumption, this application provides an energy storage heat transfer control system.
The application provides an energy storage heat transfer control system adopts following technical scheme:
an energy storage and heat exchange control system comprises a first circulation pipeline, a heat exchanger and a second circulation pipeline, wherein the first circulation pipeline is communicated to the heat exchanger and used for storing heat energy and providing heat energy for the heat exchanger; the second circulating pipeline is communicated to the heat exchanger and the heat exchange station and is used for continuously providing a heat source for the heat exchange station; the controller is used for controlling the first circulation pipeline and the second circulation pipeline to operate alternately.
By adopting the technical scheme, in the valley electricity time period, the first circulating pipeline generates heat energy by utilizing the electric energy of the valley electricity, stores the heat energy and transmits the heat energy to the exchanger; in the peak period of power consumption, the first circulation pipeline transmits the stored heat energy to the heat exchanger, the second circulation pipeline receives the heat energy through the heat exchanger, and the heat energy is transmitted to the heat exchange station through the circulation flow of the second circulation pipeline for the electric energy supplement in the peak period of power consumption, so that the peak clipping and valley filling effects are realized on the peak-valley difference of the power consumption of a power grid.
Optionally, the first circulation pipeline includes an electric heater, a first pipeline communicated with the electric heater, and a heat storage tank communicated to the first pipeline; the first pipeline is communicated with a heating circulating pump; the heat storage tank stores a heat storage medium therein.
By adopting the technical scheme, in the valley period of electricity consumption, the electric heater heats the heat storage medium in the first pipeline by consuming the electric energy of the valley electricity, namely, the electric energy in the valley period of electricity consumption is converted into heat energy to be stored in the heat storage tank, the heat storage medium in the first pipeline is continuously and circularly heated by the heating circulating pump, in the time period of the peak period of electricity consumption, the stored heat energy is converted into the electric energy by the heat exchange station to supplement a power grid, and the stored heat energy can be used for heat supply or other purposes.
Optionally, a medium injection interface is formed in the first pipeline, the first pipeline is communicated with a first valve, and the first valve is used for communicating the medium injection interface and the first pipeline.
Through adopting above-mentioned technical scheme, open first valve, can make medium injection interface and first pipeline in the intercommunication, when the heat-retaining medium consumption in the first pipeline and the heat-retaining jar is more or the liquid level is lower, accessible medium injection interface supplements the energy storage medium in to first pipeline, closes first valve, can keep apart first valve and medium injection interface, makes first pipeline and electric heater and heat-retaining jar form a confined circulation route, thereby realize the function to the replenishment of heat-retaining medium in the first pipeline and circulation heating.
Optionally, the second circulation pipeline comprises a second pipeline connected to the heat exchanger and a heat utilization circulation pump communicated to the second pipeline; the other end of the second conduit is connected to a heat exchange station.
Through adopting above-mentioned technical scheme, the second pipeline is connected to the import and the export of heat exchanger, after the medium in the second pipeline passed through the heat exchanger, can make the heat exchanger heat the medium in the second pipeline to through the continuous exchange heat of medium with the heat circulating pump in to the second pipeline, thereby can pass through the second circulating line with the heat that stores in the heat storage tank and transmit to the heat exchange station.
Optionally, a second valve and a vent connected to the second valve are connected to the second pipe.
By adopting the technical scheme, the second valve is opened, the vent hole can be communicated with the second pipeline and used for discharging the medium in the second pipeline or injecting the medium into the vent hole, and therefore the medium in the second pipeline can continuously transfer heat to the heat exchange station.
Optionally, pressure sensors are arranged in the first pipeline and the second pipeline, and the pressure sensors are connected with a pressure display.
Through adopting above-mentioned technical scheme, pressure sensor can carry out pressure detection to the medium in the first pipeline and the second pipeline, and when the pressure undersize, the medium consumption in first pipeline and the second pipeline is more or the pipeline appears breaking promptly, and the liquid level is lower, can not satisfy thermal transmission effect to in time overhaul first pipeline and second pipeline or carry out the medium to it and supply.
Optionally, a temperature sensor is arranged in the heat storage tank, and the temperature sensor is connected with a temperature display.
Through adopting above-mentioned technical scheme, temperature sensor can carry out the temperature to the medium in first pipeline and the second pipeline and detect, in the low ebb electricity in-period, when the medium temperature in the first pipeline is crossed lowly, accessible electrical heating it heats the medium in the first pipeline, or open multiunit electric heater and start work simultaneously, make the medium temperature in the first pipeline rise fast, in the peak period of power consumption, when the medium temperature in the low high second pipeline is crossed lowly, the accessible is opened multiunit heat exchanger and is carried out heat transfer treatment to the medium in the second pipeline, thereby improve the medium in the second pipeline and carry out rapid heating.
Optionally, the first pipeline and the second pipeline are wrapped by heat insulation layers.
Through adopting above-mentioned technical scheme, the insulating layer of first pipeline and second pipeline outside can play heat retaining effect to the medium in first pipeline and the second pipeline, prevents that the heat-retaining medium from consuming a large amount of heat energy through the pipe wall of first pipeline and second pipeline to reduce the heat loss, improve heat energy transmission's efficiency.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the off-peak electricity time period, the first circulation pipeline utilizes the electric energy of off-peak electricity to generate heat energy and store the heat energy, and transmits the heat energy to the exchanger, in the peak electricity period, the first circulation pipeline transmits the stored heat energy to the heat exchanger, the second circulation pipeline receives the heat energy through the heat exchanger, and then the heat energy is transmitted to the heat exchange station through the circulation flow of the second circulation pipeline for the electric energy supplement in the peak electricity period, so that the peak load shifting effect is realized on the peak-valley electricity utilization difference of the power grid;
2. the arrangement of the pressure sensor and the temperature sensor can enable the pressure and the temperature in the first pipeline and the second pipeline to be visually displayed, and when the pressure of the heat storage medium in the pipelines is too low, the medium in the first pipeline and the second pipeline is consumed more or the pipelines are broken, the liquid level is low, and the heat transfer effect cannot be met; when the temperature of the heat storage medium is too low, the heat storage medium in the first pipeline and the second pipeline can be kept within a certain temperature range by arranging a plurality of groups of electric heaters or heat exchangers.
Drawings
Fig. 1 is a schematic overall structure diagram provided in an embodiment of the present application.
Description of reference numerals: 1. a first circulation line; 11. an electric heater; 12. a first conduit; 121. a heating circulation pipe; 122. a heat release circulation pipe; 13. a heat storage tank; 14. heating the circulating pump; 15. a media injection interface; 16. a first valve; 17. a heat release circulating pump; 2. a second circulation line; 21. a second conduit; 22. a second valve; 23. a vent port; 24. using a heat circulating pump; 3. a heat exchanger; 31. a third valve; 32. a fourth valve; 4. a pressure sensor; 41. a pressure display; 5. a temperature sensor; 51. and a temperature display.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses energy storage heat transfer control system. Referring to fig. 1, the system includes a first circulation line 1, a heat exchanger 3, and a second circulation line 2. Wherein the first circulation line 1 is used for storing thermal energy and providing thermal energy to the heat exchanger 3; the second circulation pipeline 2 is communicated to the heat exchanger 3 and the heat exchange station and is used for transferring heat on the heat exchanger 3 to the heat exchange station (indicated by a dashed box in the drawing); and a controller for controlling the first circulation line 1 and the second circulation line 2 to alternately operate.
Specifically, the first circulation line 1 includes an electric heater 11, a heat storage tank 13, and a first pipe 12; the first pipeline 12 is communicated to the heat storage tank 13 and the electric heater 11 to form a closed heating loop, heat storage media are stored in the heat storage tank 13 and the first pipeline 12, the heat storage media comprise molten salt, and the molten salt has the advantages of good heat transfer performance, low working pressure, wide liquid temperature range, low cost, safety, reliability and the like. In the electricity consumption valley period, the electric heater 11 heats the heat storage medium in the first pipeline 12 by consuming the electric energy of the valley electricity, namely, the electric energy in the electricity consumption valley period is converted into heat energy to be stored in the heat storage tank 13, the heat storage medium in the first pipeline 12 is continuously heated in a circulating manner by using the heating circulating pump 14, in the time period of the electricity consumption peak period, the stored heat energy is converted into the electric energy by using the heat exchange station to supplement the power grid, and the stored heat energy can also be used for heat supply or other purposes, so that the peak clipping and valley filling effects are realized on the electricity consumption peak-valley difference of the power grid.
The first pipeline 12 comprises a heating circulating pipeline 121 and a heat release circulating pipeline 122, wherein the heating circulating pipeline 121 is communicated with a heating circulating pump 14, and a circulating path is formed by the heating circulating pump 14 through the electric heater 11 and the heat storage tank 13 for the heat storage medium in the heating circulating pipeline 121; the heat release circulation pipe 122 is communicated with a heat release circulation pump 17, so that the heat storage medium in the heat storage tank 13 can be conveyed to the heat exchanger 3 through the heat release circulation pipe 122 by the heat release circulation pump 17 in the power utilization peak period, and the heat storage medium returns to the heat storage tank 13 after passing through the heat exchanger 3 to form a heat release circulation path.
The first pipeline 12 is provided with a medium injection interface 15, and the first pipeline 12 is provided with a first valve 16 for switching on and off the medium injection interface 15 and the first pipeline 12. When the first valve 16 is opened, the medium injection interface 15 can be communicated with the interior of the first pipeline 12, when the heat storage medium in the first pipeline 12 and the heat storage tank 13 is consumed more or the liquid level is lower, the energy storage medium can be supplemented into the first pipeline 12 through the medium injection interface 15, the first valve 16 is closed, the first valve 16 can be isolated from the medium injection interface 15, the first pipeline 12, the electric heater 11 and the heat storage tank 13 form a closed circulation passage, and therefore the functions of supplementing and circularly heating the heat storage medium in the first pipeline 12 are achieved.
Further, the heat release circulation pipeline is further provided with a third valve 31 for plugging the heat storage tank 13 and the heat release circulation pipeline, so that the heat storage tank 13 and the heat release circulation pipeline are plugged while the heating circulation pipeline heats the heat storage medium in the valley power period, and the heat in the heat storage medium is prevented from being released through the heat release circulation pipeline in the valley power period.
The second circulation line 2 comprises a second pipe 21 connected to the heat exchanger 3 and a heat-using circulation pump 24 communicated to the second pipe 21, the other end of the second pipe 21 being connected to the heat exchange station; a medium for transferring heat such as water flow is injected into the second pipe 21. Two sets of inlet and outlet are arranged on the heat exchanger 3, wherein one set of inlet and outlet is used for providing a heat source for the heat exchanger 3, the other set of inlet and outlet is used for taking out and consuming heat in the heat exchanger 3, the second pipeline 21 is connected to one set of inlet and outlet of the heat exchanger 3, in the electricity consumption peak period, heat transfer media in the second pipeline 21 pass through the heat exchanger 3, the heat exchanger 3 can heat the heat transfer media in the second pipeline 21, therefore, heat transfer media such as water flow in the second pipeline 21 can continuously transfer heat to a heat exchange station under the action of the heat circulating pump 24, and auxiliary electricity generation is carried out through the heat transferred by the second pipeline 21.
The second pipeline 21 is provided with a vent 23, and the second pipeline 21 is provided with a second valve 22 for communicating and blocking the space between the second pipeline 21 and the vent 23. Opening the second valve 22 allows the vent 23 to communicate with the second conduit 21 for discharging the medium in the second conduit 21 or for injecting the medium into the vent 23, thereby allowing the medium in the second conduit 21 to continuously transfer heat to the heat transfer station.
The second pipeline 21 is also provided with a fourth valve 32 for plugging the heat exchanger 3 and the second pipeline 21, the third valve 31 and the fourth valve 32 are opened during the peak period of power utilization, heat release is continuously carried out on the heat exchanger 3 under the action of the heat release circulating pump 17, and the second pipeline 21 continuously absorbs heat from the heat exchanger 3 through the heat circulating pump 24 to transfer the heat; during the electricity consumption valley period, both the third valve 31 and the fourth valve 32 are closed, preventing the heat storage medium from losing heat during heating.
Further, pressure sensors 4 are arranged in the first pipeline 12 and the second pipeline 21, and the pressure sensors 4 are connected with a pressure display 41 and used for displaying medium pressure values in the first pipeline 12 and the second pipeline 21; be equipped with temperature sensor 5 in the heat storage tank 13, temperature sensor 5 is connected with temperature display 51 for the temperature value of demonstration heat-retaining medium. When the pressure is too low, that is, the medium in the first pipeline 12 and the second pipeline 21 is consumed more or the pipeline is broken to cause the liquid level to be lower, the heat transfer function cannot be satisfied, so that the working personnel can repair or supplement the medium to the first pipeline 12 and the second pipeline 21 in time. The temperature sensors 5 allow the temperature detection of the medium in the first and second pipes 12, 21, so that the temperature of the heat storage medium can be determined for the corresponding control of the electric heater 11.
The electric heater 11 and the heating circulating pump 13 are connected to one signal output end of the controller, the heat releasing circulating pump 122 and the heat circulating pump 24 are connected to the other signal output end of the controller, so that the controller drives the electric heater 11, the heating circulating pump 13 and the heat releasing circulating pump 122 to alternately operate between the peak period and the valley period of power consumption by the heat circulating pump 24.
Furthermore, the heat insulation layers wrap the outer parts of the first pipeline 12 and the second pipeline 21, so that the heat insulation effect on the media in the first pipeline 12 and the second pipeline 21 can be achieved, the heat storage media are prevented from consuming a large amount of heat energy through the pipe walls of the first pipeline 12 and the second pipeline 21, heat loss is reduced, and heat energy transmission efficiency is improved.
The implementation principle of an energy storage heat exchange control system in the embodiment of the application is as follows: in the valley electricity time period, the first circulating pipeline 1 generates heat energy by using the electric energy of the valley electricity, stores the heat energy and transmits the heat energy to the exchanger; in the peak period of power consumption, the first circulation pipeline 1 transmits the stored heat energy to the heat exchanger 3, the second circulation pipeline 2 receives the heat energy through the heat exchanger 3, and the heat energy is transmitted to the heat exchange station through the circulation flow of the second circulation pipeline 2 for the electric energy supplement in the peak period of power consumption, so that the peak clipping and valley filling effects are realized on the peak-valley difference of the power consumption of a power grid.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An energy storage heat exchange control system which characterized in that: the heat exchanger comprises a first circulating pipeline (1), a heat exchanger (3) and a second circulating pipeline (2), wherein the first circulating pipeline (1) is communicated to the heat exchanger (3) and is used for storing heat energy and providing heat energy for the heat exchanger; the second circulating pipeline (2) is communicated to the heat exchanger (3) and the heat exchange station and is used for continuously providing a heat source for the heat exchange station; the device also comprises a controller used for controlling the first circulation pipeline (1) and the second circulation pipeline (2) to alternately operate.
2. An energy storage heat exchange control system according to claim 1, characterized in that: the first circulating pipeline (1) comprises an electric heater (11), a first pipeline (12) communicated with the electric heater (11), and a heat storage tank (13) communicated to the first pipeline (12); the first pipeline (12) is communicated with a heating circulating pump (14); the heat storage tank (13) stores a heat storage medium therein.
3. An energy storage heat exchange control system according to claim 2, characterized in that: the medium injection port (15) is formed in the first pipeline (12), the first pipeline (12) is communicated with a first valve (16), and the first valve (16) is used for communicating the medium injection port (15) with the first pipeline (12).
4. An energy storage heat exchange control system according to claim 2, characterized in that: the second circulation pipeline (2) comprises a second pipeline (21) connected to the heat exchanger (3) and a heat utilization circulation pump (24) communicated to the second pipeline (21); the other end of the heat-using circulation pump (24) is connected to a heat exchange station.
5. An energy storage heat exchange control system according to claim 4, characterized in that: and a second valve (22) and a vent (23) connected to the second valve (22) are connected to the second pipeline (21).
6. An energy storage heat exchange control system according to claim 4, characterized in that: all be equipped with pressure sensor (4) in first pipeline (12) and second pipeline (21), pressure sensor (4) are connected with pressure display (41).
7. An energy storage heat exchange control system according to claim 2, characterized in that: be equipped with temperature sensor (5) in heat storage tank (13), temperature sensor (5) are connected with temperature display (51).
8. An energy storage heat exchange control system according to claim 4, characterized in that: the first pipeline (12) and the second pipeline (21) are wrapped by the heat insulation layer (6).
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| CN202022935549.3U CN213932167U (en) | 2020-12-07 | 2020-12-07 | Energy storage heat exchange control system |
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| CN202022935549.3U CN213932167U (en) | 2020-12-07 | 2020-12-07 | Energy storage heat exchange control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087904A (en) * | 2021-12-22 | 2022-02-25 | 清华大学 | Electric hydrogen production waste heat utilization device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114087904A (en) * | 2021-12-22 | 2022-02-25 | 清华大学 | Electric hydrogen production waste heat utilization device and method |
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