CN212132376U - High-temperature heat storage and release system - Google Patents
High-temperature heat storage and release system Download PDFInfo
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- CN212132376U CN212132376U CN202020516570.7U CN202020516570U CN212132376U CN 212132376 U CN212132376 U CN 212132376U CN 202020516570 U CN202020516570 U CN 202020516570U CN 212132376 U CN212132376 U CN 212132376U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The utility model discloses a heat release system of high temperature heat accumulation relates to the indirect heating equipment field, mainly comprises electric heating furnace, high temperature heat accumulation jar, heating circulating pump, water tank, moisturizing pump, heat exchanger, exothermic circulating pump, a plurality of gate valves and pipeline and control circuit. The utility model discloses utilize the high temperature characteristic of heat medium to carry out ordinary pressure heat accumulation, because the difference in temperature of heat medium is big, the temperature can descend 130 ℃ from 300 ℃, and is lower even, and the heat of release is many, has reduced the volume of heat accumulation jar under the same heat accumulation volume to reduce user's equipment investment. Meanwhile, high-temperature hot water or steam can be released in a heat exchange mode, the temperature is 50-150 ℃, and the requirements for production steam and heat utilization of general factories can be met.
Description
Technical Field
The utility model relates to a indirect heating equipment's field, concretely relates to high temperature heat accumulation heat release system.
Background
With the implementation of the national policy of energy conservation and emission reduction, new energy is developed rapidly, and a large number of clean energy power stations such as solar energy and wind energy are established domestically. Meanwhile, because the country reforms the high energy consumption industry and eliminates some backward productivity, the demand of China on energy is gradually reduced to a certain extent, so that the demand of China on electric power is slowly increased in recent years, and the phenomena of light and wind abandon in northern areas of China are serious. How to eliminate the light and wind abandoning effect is related to preferential policy. Meanwhile, in order to reduce emission and haze, high-pollution coal-fired boilers are gradually eliminated all over the country, and clean energy is required to be used.
The peak-valley electricity price is continuously provided all over the country, the low-valley electricity is encouraged to be selected, and the price in the low-valley electricity time period is one fourth to one sixth of the flat electricity price. In order to reduce the operation cost of users, the users who adopt electric heating mostly consider adopting valley electricity. The low-ebb electricity is adopted to carry out normal-pressure hot water heat storage, the heat storage temperature is about 90 ℃, the low-ebb electricity is mature, the low-ebb electricity is generally used for heating and domestic hot water, but the available temperature difference is small, a heat storage tank is large, and the occupied area is large. The temperature of the heat storage output of the heat storage hot water is lower, and the heat storage output is generally 50-60 ℃ hot water. For users needing high temperature, such as hot water with temperature higher than 90 ℃, even part of users need steam for production, and normal-pressure hot water heat storage cannot be selected, so that a high-temperature heat storage mode is required.
At present, water is mainly used as a medium for high-temperature heat storage commonly used, a certain pressure is adopted for constant pressure, the heat storage temperature is generally below 150 ℃, the system pressure is 0.8-1.0 MPa, and pressure-bearing equipment on the system is special equipment and has higher requirements. The patent of the utility model relates to a normal pressure high temperature heat accumulation system, the system does not bear pressure, but the medium temperature can reach 300 ℃, can provide low temperature hot water, high temperature hot water for the user, steam even.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of prior art existence, and provide a high temperature heat accumulation heat release system, have the operation of ordinary pressure, take up an area of for a short time, the high advantage of output hot water temperature.
The purpose of the utility model is accomplished through following technical scheme: the high-temperature heat storage and release system mainly comprises an electric heating furnace, a high-temperature heat storage tank, a heating circulating pump, a water tank, a water replenishing pump, a heat exchanger, a heat release circulating pump, a plurality of gate valves, pipelines and a control loop, wherein the high-temperature heat storage tank is filled with a medium, the inlet end of the electric heating furnace is communicated with the bottom of the high-temperature heat storage tank, the connecting pipeline of the high-temperature heat storage tank and the high-temperature heat storage tank is provided with the heating circulating pump for conveying a low-temperature medium to be heated to the electric heating furnace, and the outlet end of the electric heating furnace is communicated with the upper part of the high-temperature heat storage tank and; the inlet end of the primary side of the heat exchanger is communicated with the upper part of the high-temperature heat storage tank, a heat release circulating pump is arranged on a connecting pipeline of the inlet end and the upper part of the high-temperature heat storage tank and is used for conveying high-temperature media to the heat exchanger, the outlet end of the primary side of the heat exchanger is communicated with the bottom of the high-temperature heat storage tank to form heat release circulation of the media, the inlet end of the secondary side of the heat exchanger is connected with a water tank through a water replenishing pump and is used for inputting low-temperature.
As a further technical scheme, an auxiliary heating furnace is arranged on a connecting pipeline between the inlet end of the primary side of the heat exchanger and the high-temperature heat storage tank and used for further heating the high-temperature medium output by the high-temperature heat storage tank so as to meet the temperature requirement of a user side.
As a preferable technical scheme, the medium adopts a high-temperature resistant heat medium, and the boiling point of the medium is higher than 300 ℃.
The utility model has the advantages that:
(1) the high-temperature characteristic of the heat medium is utilized, the temperature can reach 300 ℃ or even higher, and the system is still in a normal pressure state;
(2) the temperature range of the heat medium is large, the temperature is reduced from 300 ℃ to 130 ℃, and even lower, the available heat is large;
(3) the heat exchanger is used for heat exchange, the temperature of the primary side is higher, so that high-temperature hot water or steam can be obtained at the secondary side, and the temperature can reach more than 150 ℃;
(4) compared with the conventional heat storage system, the heat storage tank has small volume and small occupied area under the condition of the same heat storage amount;
(5) the heating heat storage capacity can be adjusted by adjusting the heating power of the heating furnace and the flow of the circulating pump;
(6) the heat release amount can be adjusted by adjusting the flow of the heat release side circulating pump, and the temperature of the output hot water or steam can be adjusted by adjusting the water flow of the secondary side of the heat exchanger.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Description of reference numerals: the system comprises an electric heating furnace 1, a high-temperature heat storage tank 2, a heating circulating pump 3, a water tank 4, a water replenishing pump 5, a heat exchanger 6, a heat release circulating pump 7 and an auxiliary heating furnace 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings:
example (b): as shown in fig. 1, the high-temperature heat storage and release system mainly comprises an electric heating furnace 1, a high-temperature heat storage tank 2, a heating circulating pump 3, a water tank 4, a water replenishing pump 5, a heat exchanger 6, a heat release circulating pump 7, a plurality of gate valves, pipelines and a control loop, wherein the high-temperature heat storage tank 2 is filled with a medium, an inlet end of the electric heating furnace 1 is communicated with the bottom of the high-temperature heat storage tank 2, the heating circulating pump 3 is arranged on a connecting pipeline of the electric heating furnace 1 and the high-temperature heat storage tank 2 and used for conveying a low-temperature medium to be heated to the electric heating furnace 1, and an outlet end of the electric heating furnace 1 is communicated with the upper part of the high-temperature heat storage tank 2; the inlet end of the primary side of the heat exchanger 6 is communicated with the upper part of the high-temperature heat storage tank 2, a heat release circulating pump 7 is arranged on a connecting pipeline between the inlet end and the upper part of the high-temperature heat storage tank 2 and is used for conveying high-temperature media to the heat exchanger 6, the outlet end of the primary side of the heat exchanger 6 is communicated with the bottom of the high-temperature heat storage tank 2 to form heat release circulation of the media, the inlet end of the secondary side of the heat exchanger 6 is connected with the water tank 4 through the water replenishing pump 5 and is used for inputting low-temperature.
As a further technical scheme, an auxiliary heating furnace 8 is arranged on a connecting pipeline between the inlet end of the primary side of the heat exchanger 6 and the high-temperature heat storage tank 2, and is used for further heating the high-temperature medium output by the high-temperature heat storage tank 2, so that the temperature requirement of a user side can be met.
As a preferable technical scheme, the medium is a high-temperature-resistant heat medium, the boiling point of the medium is higher than 300 ℃, the medium is ensured not to generate phase change in the use temperature range, the system does not generate pressure, and the normal pressure is maintained.
The utility model discloses a working process: the high-temperature heat storage and release system mainly has three working conditions during working:
heating and heat storage working conditions: after the system is filled with the medium, the heating circulating pump 3 is started, the low-temperature medium at the bottom of the high-temperature heat storage tank 2 is conveyed to the electric heating furnace 1 for heating, the heated high-temperature medium is conveyed to the upper part of the high-temperature heat storage tank 2, the heating is circulated and continuously heated until the medium temperature in the system completely reaches the rated temperature (280-300 ℃), the heat storage process is completed, the electric heating furnace 1 stops heating, and the heating circulating pump 3 stops circulating. Under the working condition, the heating quantity and the heat demand quantity can be adjusted by adjusting the heating power of the heating furnace 1 and the flow of the heating circulating pump 3.
The heat release and heat exchange working condition is as follows: when the user side needs to use heat, the high-temperature medium on the upper part of the high-temperature heat storage tank 2 is conveyed to the heat exchanger 6 through the heat release circulating pump 7 for heat exchange, and the high-temperature medium is conveyed to the bottom of the high-temperature heat storage tank 2 after being released and cooled. The secondary side of the heat exchanger 6 is water, which is input from the water tank 4 through the water replenishing pump 5, and the water in the heat exchanger 6 absorbs heat and is heated to become high-temperature water or steam, which is output and provided for the user side. When the temperature of the medium input into the heat exchanger 6 from the high-temperature heat storage tank 2 cannot meet the use requirement, the auxiliary heating furnace 8 can be used for heating and temperature raising firstly. And (4) continuously performing heat release circulation until the temperature of the medium in the high-temperature heat storage tank 2 is completely reduced to the rated minimum temperature (130-150 ℃), finishing the heat release process, stopping circulation of the heat release circulation pump 7, and stopping water input on the secondary side of the heat exchanger 6. Under the working condition, the temperature of the output hot water or steam can be adjusted by adjusting the flow of the heat release circulating pump 7 to adjust the heat release quantity, adjusting the liquid level of the secondary side of the heat exchanger 6 and the water flow of the water replenishing pump 5.
Heating and heat release working conditions: the working condition is the combination of the two working conditions, and heat is released and exchanged while the heat is stored and heated.
The utility model provides a high temperature heating heat release system utilizes the high temperature characteristic of heat medium to carry out the ordinary pressure heat accumulation, because the difference in temperature of heat medium is big, the temperature can descend to 130 ℃ from 300 ℃, and is lower even, and the heat of release is many, has reduced the volume of heat accumulation jar under the same heat accumulation volume to reduce user's equipment investment. Meanwhile, high-temperature hot water or steam can be released in a heat exchange mode, the temperature is 50-150 ℃, and the requirements for production steam and heat utilization of general factories can be met.
It should be understood that equivalent substitutions or changes to the technical solution and the inventive concept of the present invention should be considered to fall within the scope of the appended claims for the skilled person.
Claims (3)
1. A high-temperature heat storage and release system is characterized in that: the device mainly comprises an electric heating furnace (1), a high-temperature heat storage tank (2), a heating circulating pump (3), a water tank (4), a water replenishing pump (5), a heat exchanger (6), a heat release circulating pump (7), a plurality of gate valves, pipelines and a control loop, wherein the high-temperature heat storage tank (2) is filled with a medium, the inlet end of the electric heating furnace (1) is communicated with the bottom of the high-temperature heat storage tank (2), the heating circulating pump (3) is arranged on a connecting pipeline of the electric heating furnace and the high-temperature heat storage tank and is used for conveying a low-temperature medium to be heated to the electric heating furnace (1), and the outlet end of the electric heating furnace (1) is communicated with the upper part of the high-temperature heat storage tank (2) and is used for outputting the; the inlet end of the primary side of the heat exchanger (6) is communicated with the upper part of the high-temperature heat storage tank (2), a heat-releasing circulating pump (7) is arranged on a connecting pipeline of the inlet end and the upper part of the high-temperature heat storage tank (2) and is used for conveying high-temperature media to the heat exchanger (6), the outlet end of the primary side of the heat exchanger (6) is communicated with the bottom of the high-temperature heat storage tank (2) to form heat-releasing circulation of the media, the inlet end of the secondary side of the heat exchanger (6) is connected with a water tank (4) through a water replenishing pump (5) and is used for inputting low-.
2. The high temperature thermal storage and heat release system of claim 1, wherein: and an auxiliary heating furnace (8) is arranged on a connecting pipeline between the inlet end of the primary side of the heat exchanger (6) and the high-temperature heat storage tank (2) and is used for further heating the high-temperature medium output by the high-temperature heat storage tank (2) so as to meet the temperature requirement of a user side.
3. The high temperature thermal storage and heat release system of claim 1, wherein: the medium adopts a high-temperature resistant heat medium, and the boiling point of the medium is higher than 300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516570.7U CN212132376U (en) | 2020-04-10 | 2020-04-10 | High-temperature heat storage and release system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020516570.7U CN212132376U (en) | 2020-04-10 | 2020-04-10 | High-temperature heat storage and release system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212132376U true CN212132376U (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020516570.7U Active CN212132376U (en) | 2020-04-10 | 2020-04-10 | High-temperature heat storage and release system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212132376U (en) |
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2020
- 2020-04-10 CN CN202020516570.7U patent/CN212132376U/en active Active
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