CN212512556U - Calcium-based electrochemical fixed bed heat storage system - Google Patents
Calcium-based electrochemical fixed bed heat storage system Download PDFInfo
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- CN212512556U CN212512556U CN202022012055.8U CN202022012055U CN212512556U CN 212512556 U CN212512556 U CN 212512556U CN 202022012055 U CN202022012055 U CN 202022012055U CN 212512556 U CN212512556 U CN 212512556U
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Abstract
The utility model relates to a calcium base electrochemistry fixed bed heat-retaining system, the utility model discloses a water collector, water knockout drum, condenser, condensate tank, steam generator, electrochemistry heat-retaining module, hot water storage circulating pump, cooling water circulating pump, condensate pump, water-feeding pump, steam control valve, return water governing valve, return water shut-off valve, return water bypass valve, return water diverter valve, the shut-off valve before the return water pump, condensate pump and the female pipe governing valve of steam. In the energy charging process, the heat storage module is heated to generate water vapor, the generated water vapor enters the condensing system to be cooled, the heat generated in the cooling process is supplied to a user, and cooling water is stored; in the energy releasing process, water vapor generated by the system enters the heat storage module to react, a large amount of heat is generated, and the generated heat is absorbed by a water supply and return system of the system to be used by a user.
Description
Technical Field
The utility model relates to an energy storage technical field especially relates to a calcium-based electrochemistry fixed bed heat-retaining system, is the low ebb electricity storage for the electric heat demand of user to hot water, conduction oil or other heat conduction media.
Background
Since the 21 st century, the development trend of electrification and intellectualization is more practical and novel, and the demand for social electricity utilization is also increasing year by year. In addition, as the proportion of renewable energy sources is continuously increased, the phenomenon of poor peak-valley load of a power grid is also becoming more and more serious. In order to improve the stability of the power grid and keep the balance of the power system, corresponding peak shaving measures are necessary when the power grid operates. The conventional peak regulation method comprises thermal power generating unit peak regulation, water pumping energy storage, compressed air energy storage, solid heat storage, battery energy storage and the like, but the application scenes of the conventional peak regulation method are limited to a certain extent. The calcium-based electrochemical fixed bed heat storage system mainly faces to a user side, and provides cheaper and more efficient energy for electricity during peak clipping and valley filling.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects and provide a calcium-based electrochemical fixed bed heat storage system which converts electricity into heat, stores and releases the heat, thereby meeting the heat demand of users; when the low-ebb electricity is used for charging, the steam heat of the charging byproduct can be effectively utilized; when releasing energy, the heat released by the heat storage device can be efficiently absorbed, thereby achieving the purpose of heat storage.
The purpose of the utility model is realized like this:
a calcium-based electrochemical fixed bed heat storage system comprises a heat exchange system, a water drainage system, a condensation system and a steam system, wherein the heat exchange system consists of a water collector, a water distributor, a condenser, a condensation water tank, a steam generator and a plurality of electrochemical heat storage modules; in the heat exchange system, a water separator is respectively connected with an electrochemical heat storage module through a water supply pipe, a hot water storage circulating pump is arranged between the water separator and the electrochemical heat storage module, a cooling water pump front shutoff valve is arranged between the water separator and the hot water storage circulating pump, a return water regulating valve and a return water shutoff valve are arranged between the electrochemical heat storage module and the hot water storage circulating pump, the return water regulating valve is close to the electrochemical heat storage module, and the return water shutoff valve is close to the hot water storage circulating pump; the water collector is respectively connected with the electrochemical heat storage module through a water return pipe;
in the water discharging system, a water collector is connected with a hot water circulating pump through a water supply pipe, a return water switching valve is arranged between the water collector and the hot water circulating pump, the hot water circulating pump is connected with an electrochemical heat storage module through a water supply branch pipe and a return water regulating valve, and a return water bypass valve is arranged on the water supply branch pipe;
in the condensation system, a condenser is connected with the electrochemical heat storage module through a condenser pipe, the electrochemical heat storage module is electrified, the condenser is also connected with three branches, one branch is connected with a condensate tank through a condensate pump, the other branch is connected with a water collector through a return pipe, the other branch is connected with a water separator through a cooling water circulating pump, and a cooling water pump front shutoff valve is arranged between the cooling water circulating pump and the water separator;
in the steam system, a steam generator is connected with the electrochemical heat storage module through a steam pipe, a steam regulating valve and a steam main pipe regulating valve are arranged between the electrochemical heat storage module and the steam generator, the steam regulating valve is close to the electrochemical heat storage module, and the steam main pipe regulating valve is close to the steam generator; the steam generator is connected with the condensation water tank through a water feeding pump.
Furthermore, when the system releases energy and exchanges heat, the electrochemical heat storage module generates heat, at the moment, the backwater shutoff valve and the backwater pump front shutoff valve are opened, and the backwater bypass valve and the backwater switching valve are closed; and water in the water separator is sent to the electrochemical heat storage module by adopting a hot water storage circulating pump to absorb heat and then enters the water collector, and the opening degree of the return water regulating valve is regulated according to the energy release condition of the heat storage module.
Further, before the system is charged, the backwater shutoff valve and the backwater pump front shutoff valve are closed, and the backwater regulating valve, the backwater bypass valve and the backwater switching valve are opened; and a hot water circulating pump is adopted to send all the water in the electrochemical heat storage module and the water supply and return pipes into the water collector.
Furthermore, when the system is charged, the electrochemical heat storage module is electrified and heated, the generated water vapor enters the condenser through the condensing pipe to be condensed, and the condensed water is conveyed to the condensed water tank through the condensed water pump; and a front shutoff valve of the condensate pump is opened, water in the water separator is conveyed to the condenser through the condensate pump, and the water is conveyed to the water collector after the condensation heat of the steam is absorbed.
Furthermore, when steam is generated, water in the condensed water tank is pressurized by the water feeding pump and is sent into the steam generator to generate steam, and the generated steam is adjusted by the steam main pipe adjusting valve and the steam adjusting valve and then is sent into the electrochemical heat storage module to generate heat.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the heat storage efficiency of the system is high: the utility model discloses a fill can the steam waste heat, the water in the heating water distribution box supplies outward, reaches the purpose of the high-efficient utilization of system's waste heat.
(2) The energy release temperature is higher: the utility model discloses heat-retaining device has adopted calcium oxide/calcium hydrate as the heat-retaining material, and its energy release heat release temperature can effectively satisfy the demand of user high-temperature heat at 150~500 ℃ within range.
(3) The system has good expansibility: the utility model discloses heat-retaining unit modularized design, through the connection of interface, formation module that can be very convenient. This patent system has fully considered the increase and decrease of heat-retaining module, through increasing parallelly connected pump and valve, the increase of adaptation heat-retaining capacity that can be very convenient.
Drawings
Fig. 1 is a schematic diagram of the overall system of the present invention.
Fig. 2 is a diagram of the steam generation system of the present invention.
Fig. 3 is a diagram of the energy-releasing heat exchange system of the present invention.
Fig. 4 is a diagram of the energy charging and water discharging system of the present invention.
Fig. 5 is a diagram of the energy charging and condensing system of the present invention.
Wherein:
the system comprises a water collector S1, a water separator S2, a condenser S3, a condensed water tank S4, a steam generator S5, an electrochemical heat storage module S6, a hot water storage circulating pump B1, a cooling water circulating pump B2, a condensed water pump B3, a water feed pump B4, a steam regulating valve F1, a return water regulating valve F2, a return water shut-off valve F3, a return water bypass valve F4, a return water switching valve F5, a return water pump front shut-off valve F6, a cooling water pump front shut-off valve F7 and a steam main pipe regulating valve F8.
Detailed Description
Example 1:
referring to fig. 1, the utility model relates to a calcium-based electrochemistry fixed bed heat-retaining system, it includes the heat transfer system, the system of draining, condensing system and the steam system that comprise water collector S1, water knockout drum S2, condenser S3, condensate tank S4, steam generator S5 and a plurality of electrochemistry heat-retaining module S6.
In the heat exchange system, a water separator S2 is respectively connected with an electrochemical heat storage module S6 through a water supply pipe, a hot water storage circulating pump B1 is arranged between the water separator S2 and the electrochemical heat storage module S6, a cooling water pump front shutoff valve F7 is arranged between the water separator S2 and the hot water storage circulating pump B1, a return water regulating valve F2 and a return water shutoff valve F3 are arranged between the electrochemical heat storage module S6 and the hot water storage circulating pump B1, the return water regulating valve F2 is close to the electrochemical heat storage module S6, and the return water shutoff valve F3 is close to the hot water storage circulating pump B1; the water collector S1 is respectively connected with the electrochemical heat storage module S6 through a water return pipe;
referring to fig. 3, when the system releases energy and exchanges heat, the electrochemical heat storage module S6 generates heat, at this time, the return water shutoff valve F3 and the return water pump front shutoff valve F6 are opened, and the return water bypass valve F4 and the return water switching valve F5 are closed; and (3) sending water in the water separator S2 into the electrochemical heat storage module S6 by using a hot water storage circulating pump B1 to absorb heat, then entering the water collector S1, and adjusting the opening degree of a return water adjusting valve F2 according to the energy release condition of the heat storage module.
In a water discharging system, a water collector S1 is connected with a hot water storage circulating pump B1 through a water supply pipe, a water return switching valve F5 is arranged between the water collector S1 and the hot water storage circulating pump B1, the hot water storage circulating pump B1 is connected with an electrochemical heat storage module S6 through a water supply branch through a water return adjusting valve F2, and a water return bypass valve F4 is arranged on the water supply branch;
referring to fig. 4, before the system is charged, the return water shutoff valve F3 and the return water pump front shutoff valve F6 are closed, and the return water regulating valve F2, the return water bypass valve F4 and the return water switching valve F5 are opened; and a hot water storage circulating pump B1 is adopted to send all the water in the electrochemical heat storage module S6 and the water supply and return pipes into a water collector S1.
In a condensation system, a condenser S3 is connected with an electrochemical heat storage module S6 through a condenser pipe, the electrochemical heat storage module S6 is electrified, the condenser S3 is further connected with three branches, one branch is connected with a condensate water tank S4 through a condensate water pump B3, the other branch is connected with a water collector S1 through a water return pipe, the other branch is connected with a water separator S2 through a cooling water circulating pump B2, and a cooling water pump front shutoff valve F7 is arranged between a cooling water circulating pump B2 and the water separator S2;
referring to fig. 5, when the system is charged, the electrochemical heat storage module S6 is energized to heat, the generated water vapor enters the condenser S3 through the condenser pipe to be condensed, and the condensed water is delivered to the condensed water tank S4 through the condensed water pump B3; and a front shutoff valve of the condensate pump is opened, water in the water separator S2 is conveyed to the condenser S3 through the condensate pump B3, and the water is conveyed to the water collector S1 after the condensation heat of the steam is absorbed.
In a steam system, a steam generator S5 is connected with the electrochemical heat storage module S6 through a steam pipe, a steam regulating valve F1 and a steam main pipe regulating valve F8 are arranged between the electrochemical heat storage module S6 and the steam generator S5, a steam regulating valve F1 is close to the electrochemical heat storage module S6, and a steam main pipe regulating valve F8 is close to a steam generator S5; the steam generator S5 is connected with a condensed water tank S4 through a feed water pump B4;
referring to fig. 2, when steam is generated, water in the condensed water tank S4 is pressurized by the water supply pump B4 and sent to the steam generator S5 to generate steam, and the generated steam is adjusted by the steam main control valve F8 and the steam control valve F1 and then sent to the electrochemical heat storage module S6 to generate heat.
The working principle is as follows:
the utility model discloses a water collector, water knockout drum, condenser, condensate tank, steam generator, electrochemistry heat-retaining module, hot water storage circulating pump, cooling water circulating pump, condensate pump, feed pump, steam regulating valve, return water governing valve, return water shutoff valve, return water bypass valve, return water diverter valve, the preceding shutoff valve of return water pump, the preceding shutoff valve of condensate pump and the female governing valve of steam. In the energy charging process, the heat storage module is heated to generate water vapor, the generated water vapor enters the condensing system to be cooled, the heat generated in the cooling process is supplied to a user, and cooling water is stored; in the energy releasing process, water vapor generated by the system enters the heat storage module to react, a large amount of heat is generated, and the generated heat is absorbed by a water supply and return system of the system to be used by a user.
The utility model discloses a fixed bed heat-retaining device is the modularization, converts the electricity into chemical energy night, releases chemical energy heat for heat daytime again. The single heat storage module can store heat, and can be combined to form a heat storage module so as to deal with different heat utilization scenes. During energy storage, electricity is converted into chemical energy in the heat storage device, water vapor generated in the process enters the condenser for condensation, and the condensed water is conveyed to the condensed water tank through the water pump; when releasing energy, water in the condensed water tank enters the steam generator through the water pump to generate steam, the steam enters the heat storage device to release energy, and the generated heat is taken away by water from the water separator and sent to the water collector.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (5)
1. A calcium-based electrochemical fixed bed heat storage system is characterized in that: the system comprises a heat exchange system, a water discharging system, a condensing system and a steam system, wherein the heat exchange system consists of a water collector (S1), a water separator (S2), a condenser (S3), a condensed water tank (S4), a steam generator (S5) and an electrochemical heat storage module (S6); in the heat exchange system, a water separator (S2) is connected with an electrochemical heat storage module (S6) through a water supply pipe, a hot water storage circulating pump (B1) is arranged between the water separator (S2) and the electrochemical heat storage module (S6), a cooling water pump front shutoff valve (F7) is arranged between the water separator (S2) and the hot water storage circulating pump (B1), a return water regulating valve (F2) and a return water shutoff valve (F3) are arranged between the electrochemical heat storage module (S6) and the hot water storage circulating pump (B1), the return water regulating valve (F2) is close to the electrochemical heat storage module (S6), and the return water shutoff valve (F3) is close to the hot water storage circulating pump (B1); the water collector (S1) is respectively connected with the electrochemical heat storage module (S6) through a water return pipe;
in a water discharging system, a water collector (S1) is connected with a hot water storage circulating pump (B1) through a water supply pipe, a water return switching valve (F5) is arranged between the water collector (S1) and the hot water storage circulating pump (B1), the hot water storage circulating pump (B1) is connected with an electrochemical heat storage module (S6) through a water supply branch through a water return adjusting valve (F2), and a water return bypass valve (F4) is arranged on the water supply branch;
in a condensation system, a condenser (S3) is connected with the electrochemical heat storage module (S6) through a condenser pipe, the condenser (S3) is further connected with three branches, one branch is connected with a condensed water tank (S4) through a condensed water pump (B3), the other branch is connected with a water separator (S2) through a cooling water circulating pump (B2), and a cooling water pump front shutoff valve (F7) is arranged between the cooling water circulating pump (B2) and the water separator (S2);
in the steam system, a steam generator (S5) is connected with an electrochemical heat storage module (S6) through a steam pipe, a steam regulating valve (F1) and a steam main pipe regulating valve (F8) are arranged between the electrochemical heat storage module (S6) and the steam generator (S5), the steam regulating valve (F1) is close to the electrochemical heat storage module (S6), and the steam main pipe regulating valve (F8) is close to the steam generator (S5); the steam generator (S5) is connected to a condensate tank (S4) through a feed water pump (B4).
2. The calcium-based electrochemical fixed bed thermal storage system of claim 1, wherein: when the system releases energy and exchanges heat, the electrochemical heat storage module (S6) generates heat, at the moment, the backwater shutoff valve (F3) and the backwater pump front shutoff valve (F6) are opened, and the backwater bypass valve (F4) and the backwater switching valve (F5) are closed; and (3) sending water in the water separator (S2) to the electrochemical heat storage module (S6) by using a hot water storage circulating pump (B1) to absorb heat, then entering the water collector (S1), and adjusting the opening degree of a return water adjusting valve (F2) according to the energy release condition of the heat storage module.
3. The calcium-based electrochemical fixed bed thermal storage system of claim 1, wherein: before the system is charged, a backwater shutoff valve (F3) and a backwater pump front shutoff valve (F6) are closed, and a backwater regulating valve (F2), a backwater bypass valve (F4) and a backwater switching valve (F5) are opened; and (S6) and water in the water supply and return pipes are all sent to the water collector (S1) by adopting a hot water storage circulating pump (B1).
4. The calcium-based electrochemical fixed bed thermal storage system of claim 1, wherein: when the system is charged, the electrochemical heat storage module (S6) is electrified and heated, the generated water vapor enters the condenser (S3) through the condensing pipe to be condensed, and the condensed water is conveyed to the condensed water tank (S4) through the condensed water pump (B3); and (3) opening a front shutoff valve of the condensate pump, conveying water in the water separator (S2) to a condenser (S3) through the condensate pump (B3), absorbing the condensation heat of the steam and then conveying the steam to a water collector (S1).
5. The calcium-based electrochemical fixed bed thermal storage system of claim 1, wherein: when steam is generated, water in the condensation water tank (S4) is pressurized by a water supply pump (B4) and sent into a steam generator (S5) to generate steam, and the generated steam is adjusted by a steam main pipe adjusting valve (F8) and a steam adjusting valve (F1) and then sent into an electrochemical heat storage module (S6) to generate heat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022012055.8U CN212512556U (en) | 2020-09-15 | 2020-09-15 | Calcium-based electrochemical fixed bed heat storage system |
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| CN202022012055.8U CN212512556U (en) | 2020-09-15 | 2020-09-15 | Calcium-based electrochemical fixed bed heat storage system |
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