CN106642295B - Heating device for electric heating energy storage - Google Patents
Heating device for electric heating energy storage Download PDFInfo
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- CN106642295B CN106642295B CN201710120711.6A CN201710120711A CN106642295B CN 106642295 B CN106642295 B CN 106642295B CN 201710120711 A CN201710120711 A CN 201710120711A CN 106642295 B CN106642295 B CN 106642295B
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- heat storage
- heat
- bricks
- heat exchange
- exchange tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a heating device for electric heating energy storage, belonging to the field of energy utilization. The device comprises: the heat storage brick, the heat exchange tube bank and the U-shaped steel connecting side plates on the two sides of the heat exchange tube bank are filled with granular heat storage materials among the heat storage bricks, and the heat storage bricks are transversely and parallelly connected with the heat exchange tube bank, and an electric heating element is arranged between the adjacent heat storage bricks. The combined structure of the heat storage bricks and the granular heat storage materials of the device can increase the heat storage quantity and reduce the volume of the heat storage and supply device. The invention fully utilizes the low-price electric energy in the night valley period by reasonably applying the valley electric heating energy storage device, meets the requirement of people on heating in winter, and realizes the purposes of saving energy, protecting environment and reducing heat supply cost.
Description
Technical Field
The invention relates to a heating device for electric heating energy storage, belonging to the field of energy utilization.
Background
Currently, the heat source of a conventional heating system is a combustion boiler, such as: coal-fired boilers, oil-fired boilers, gas-fired boilers, solar water heaters, electric boilers and the like. The operation cost of a common coal-fired boiler is low, but the waste gas, waste material, waste water and the like discharged by a coal-fired boiler room can cause serious pollution to the environment; the waste gas of oil burning boilers and gas burning boilers has less pollution to the environment, but the operation cost is very high; solar energy is the cleanest energy, but the conversion efficiency of photoelectric and light-heat energy is lower at present, the solar energy can only be used on a water heater with small heat consumption and in a special environment, and the application of large heat capacity is not ideal; although the general electric boiler has no emission and pollution to the environment, if the electric boiler is used for heating by electric heating at night and day, the electric cost is high.
Therefore, by utilizing the policy of reducing the low-ebb electricity charge set by the government, the electric energy is stored at night (21: 00-7: 00) for being used in the daytime (7: 00-21: 00), so that the electricity charge expense can be greatly reduced for users, the surplus low-ebb electricity in China can be utilized, the national electricity investment is not increased, and the service life of a generator set can be delayed.
Disclosure of Invention
The invention aims to provide a heating device for off-peak electric heating energy storage, which is energy-saving and environment-friendly, low in use cost, reasonable in energy utilization and convenient to use and manage.
The technical scheme of the invention is as follows:
an electrically heated stored energy heating apparatus, the apparatus comprising: the heat storage brick, the heat exchange tube bank and the U-shaped steel connecting side plates on the two sides of the heat exchange tube bank are filled with granular heat storage materials among the heat storage bricks, and the heat storage bricks are transversely and parallelly connected with the heat exchange tube bank, and an electric heating element is arranged between the adjacent heat storage bricks.
The heat storage and heat supply device is arranged in a wall shape by overlapping heat storage bricks, a high-temperature-resistant metal heat exchange tube bank is clamped in the middle of each row of heat storage bricks and filled with high-temperature-resistant granular heat storage materials, U-shaped steel connecting side plates are arranged between the heat storage bricks on two sides of the high-temperature-resistant metal heat exchange tube bank, and the U-shaped steel connecting side plates are used for sealing gaps between the heat storage bricks and connecting fixed heat storage bricks.
The heat exchange tube bank consists of an upper collecting tube, a lower collecting tube and a high-temperature resistant heat exchange tube which is vertically arranged between the upper collecting tube and the lower collecting tube, wherein the upper collecting tube and the lower collecting tube are horizontally arranged, and the heat exchange tube bank is embedded in the granular heat storage material.
The heat exchange tube rows are arranged in gaps of the two rows of heat storage bricks, granular heat storage materials are filled in the gaps, heat energy in the granular heat storage materials is transferred to heated media in the heat exchange tubes in a heat conduction mode, the heating media enter the heat exchange tubes through the lower collecting tubes, the heated media are uniformly distributed to the heat exchange tube bundles by the lower collecting tubes, the heated media coming out of the heat exchange tube bundles are collected in the upper collecting tubes, and the heated media are sent to heat users through outlets of the upper collecting tubes.
In the electric heating energy storage heating device, the heat storage bricks and the heat exchange tube bank are fixed by bolts through the U-shaped steel connecting side plates.
The heat storage brick of the heat supply device for electric heating energy storage is in a flat square shape, the upper semicircular groove and the lower semicircular groove are arranged at the central symmetrical positions of the upper surface and the lower surface of the heat storage brick, a through round hole is formed in the middle of a brick joint when the heat storage bricks are overlapped, the electric heating element is arranged in the round hole, the electric heating element heats the heat storage bricks after being electrified, and heat is transferred to the high-temperature-resistant granular heat storage materials through the heat storage bricks.
The heating device of electrical heating energy storage, the U-shaped plate cross section of "U" shaped steel system connection curb plate is "U" shape, it arranges the bolted connection hole to bore the equipartition respectively on the relative curb plate of U-shaped plate, "adopt the bolt to pass the bolted connection hole between the U" shaped steel system connection curb plate and connect, install the heat accumulation brick between "U" shaped steel system connection curb plate, the bolted connection hole is located the relative heat accumulation brick outside, install the heat transfer bank of tubes and fill granular heat accumulation material between the heat accumulation brick, the both ends in the middle gap of two rows of heat accumulation bricks are installed to U "shaped steel system connection curb plate.
The lower part of the heat exchange tube bank arranged between the two rows of heat storage bricks is provided with a space.
The whole heat storage device of the electric heating energy storage heating device adopts a modular combination form.
The design idea of the invention is as follows:
the heat storage and supply device comprises heat storage bricks, heat exchange tube banks, connecting side plates made of U-shaped steel, high-temperature-resistant granular heat storage materials filled among the heat storage bricks and the like. The heat storage bricks and the heat exchange tube bank are transversely arranged in parallel and are connected through U-shaped steel connecting side plates. Wherein: the integrated configuration of heat accumulation brick and granular heat storage material can increase the heat accumulation and reduce heat accumulation heating device's volume, the heat transfer bank of tubes of vertical installation can produce high temperature hot water and steam, and can avoid producing the water hammer that produces when having a power failure suddenly, it can improve the heat transfer ability of heat transfer bank of tubes to fill granular heat storage material between the heat accumulation brick, thereby reduce the quantity of high temperature resistant metal tubular product, "U" shaped steel system is connected the curb plate and is connected and unpack connecting bolt apart very easily, be convenient for maintain or change the heat transfer bank of tubes between the heat accumulation brick, what millet electricity heat accumulation heating device adopted is modular combination arrangement form, can increase or reduce heat accumulation heating device according to the user's demand is nimble.
The heat storage and supply device is formed by overlapping and arranging a plurality of rows of heat storage bricks into a wall shape, a high-temperature-resistant metal heat exchange tube bank is clamped between each row of heat storage bricks and filled with high-temperature-resistant granular heat storage materials, a U-shaped steel connecting side plate is arranged between the heat storage bricks on two sides of the high-temperature-resistant metal heat exchange tube bank, a gap between the heat storage bricks is sealed and the heat storage bricks are connected and fixed, so that the heat storage bricks are prevented from laterally collapsing. The high-temperature-resistant metal heat exchange tube bank consists of collecting tubes welded by an upper seamless steel tube and a lower seamless steel tube and vertical heat exchange tubes welded and connected between the upper collecting tube and the lower collecting tube. The heat storage bricks and the heat exchange tube bank are fixed by bolts through U-shaped steel connecting side plates.
The invention has the advantages and beneficial effects that:
1. the combined structure of the heat storage bricks and the granular heat storage materials of the device can increase the heat storage quantity and reduce the volume of the heat storage and supply device.
2. The vertically installed heat exchange tube bank of the device produces high-temperature hot water or steam, and can avoid water hammer caused by sudden power failure.
3. According to the device disclosed by the invention, the granular heat storage materials are filled between the heat storage bricks, so that the heat exchange capacity of the heat exchange tube bank can be improved, and the consumption of high-temperature-resistant metal tubes is reduced.
4. The U-shaped steel connecting side plate of the device can be used for easily disassembling the connecting bolt, so that the heat exchange tube rows among the heat storage bricks can be conveniently maintained or replaced.
5. The device adopts a modular combined arrangement mode, and can flexibly increase or reduce the heat storage and supply capacity according to the requirements of users.
6. The invention fully utilizes the low-price electric energy in the night off-peak electricity period by reasonably utilizing the off-peak electric heating energy storage device, meets the requirement of people on heating in winter, and simultaneously realizes the purposes of saving energy, protecting environment and reducing heat supply cost.
Drawings
FIG. 1 is a schematic view of a heat storage and supply apparatus according to the present invention; in the figure, 1 heat exchange tube row; 2, heat storage bricks; 3 a particulate heat storage material; 4 an electric heating element; 5, steel connecting side plates; 6 equipment foundation.
FIG. 2 is a schematic view of a heat exchange bank of the thermal storage apparatus; in the figure, 11 is a collecting pipe; 12 heat exchange tubes; and 13, a lower collecting pipe.
FIG. 3 is a schematic view of a connecting side plate made of U-shaped steel; wherein, (a) a front view; (b) a top view; (c) side view. In the figure, 51, a U-shaped plate; 52 bolt attachment holes; 53 open.
FIG. 4 is a schematic structural view of a heat storage brick; wherein, (a) a front view; (b) a top view; (c) a side view; in the figure, 21 brick bodies; 22 an upper semicircular groove; 23 lower semicircular grooves.
Detailed Description
As shown in fig. 1-4, the valley electric heating energy storage and heat supply device of the present invention is arranged on an equipment foundation 6, and the device comprises: high temperature resistant high density insulating material heat accumulation brick 2 (hereinafter referred to as "heat accumulation brick") and high temperature resistant metal heat exchange tube bank 1 (hereinafter referred to as "heat exchange tube bank"), curb plate 5 is connected to "U" shaped steel system of heat exchange tube bank 1 both sides, fills high temperature resistant granular heat accumulation material 3 between heat accumulation brick 2, heat accumulation brick 2 and heat exchange tube bank 1's horizontal parallel connection mode, sets up electric heating element 4 between the adjacent heat accumulation brick 2, and concrete structure is as follows:
the heat storage and supply device is formed by overlapping and arranging a plurality of rows of heat storage bricks 2 into a wall shape, a high-temperature-resistant metal heat exchange tube bank 1 is clamped between each row of heat storage bricks 2, high-temperature-resistant granular heat storage materials 3 are filled in the heat storage bricks, U-shaped steel connecting side plates 5 are arranged between the heat storage bricks 2 on two sides of the high-temperature-resistant metal heat exchange tube bank 1, the U-shaped steel connecting side plates 5 are used for sealing gaps between the heat storage bricks 2 and connecting the fixed heat storage bricks 2, and the side direction collapse of the heat storage and supply device is prevented. The high-temperature-resistant metal heat exchange tube bank 1 is composed of collecting tubes (an upper collecting tube 11 and a lower collecting tube 13) welded by an upper seamless steel tube and a lower seamless steel tube and vertical heat exchange tubes 12 welded between the upper collecting tube and the lower collecting tube, and the heat storage bricks 2 and the heat exchange tube bank 1 are fixed by bolts through connecting side plates 5 made of U-shaped steel.
As shown in fig. 1, 2 and 4, the heat storage brick 2 made of the high-temperature-resistant high-density insulating material has the following specific structure:
the heat storage brick 2 is flat square and comprises a brick body 21, an upper semicircular groove 22 and a lower semicircular groove 23, the semicircular grooves (the upper semicircular groove 22 and the lower semicircular groove 23) are arranged at the central symmetrical positions of the upper surface and the lower surface of the brick body 21, a through round hole is formed in the middle of a brick joint when the heat storage bricks 2 are overlapped, the electric heating element 4 is arranged in the round hole, the electrified electric heating element 4 can heat the heat storage brick 2, and heat is transferred to the high-temperature-resistant granular heat storage material 3 through the heat storage brick 2. The heat exchange tube bank 1 is embedded in the granular heat storage material 3, and the heated medium enters the heat exchange tubes 12 through the lower collecting tube 13 at the bottom of the heat storage and supply device, and is collected by the upper collecting tube 11 at the upper part of the heat storage and supply device to heat users after the required heat energy is obtained.
As shown in fig. 1 and 2, the high-temperature resistant metal heat exchange tube bank 1 is composed of an upper collecting tube 11 and a lower collecting tube 13 which are horizontally arranged, and a plurality of vertically arranged high-temperature resistant heat exchange tubes 12 arranged between the upper collecting tube and the lower collecting tube, and the heat exchange tube bank 1 is formed by welding and connecting the upper collecting tube and the lower collecting tube. The heat exchange tube row 1 is arranged in a gap between two rows of heat storage bricks 2, granular heat storage materials 3 are filled in the gap, heat energy in the granular heat storage materials 3 is transferred to a heated medium in a heat exchange tube 12 in a heat conduction mode, the heated medium enters the heat exchange tube 12 through a lower collecting tube 13, the heated medium is uniformly distributed to a heat exchange tube bundle by the lower collecting tube 13, the heated medium coming out of the heat exchange tube bundle is collected in an upper collecting tube 11, and the heated medium is sent to a heat user through an outlet of the upper collecting tube 11.
As shown in fig. 1 and 3, the cross section of the U-shaped plate 51 of the "U" -shaped steel connecting side plate 5 is "U" -shaped, two rows of bolt connecting holes 52 are drilled on the opposite side plates of the U-shaped plate 51, the "U" -shaped steel connecting side plates 5 are connected by bolts penetrating through the bolt connecting holes 52, heat storage bricks 2 are installed between the "U" -shaped steel connecting side plates 5, the bolt connecting holes 52 are located on the outer sides of the heat storage bricks 2, openings 53 are provided on the bottom plate of the U-shaped plate 51 (in the figure, the openings 53 serve to cooperate with the outer diameter sealing and positioning of the upper and lower collecting pipes), heat exchange pipe rows 1 are installed between the heat storage bricks 2 and filled with granular heat storage materials 3, and the "U" -shaped steel connecting side plates 5 are installed at both ends of the gap between the two rows of heat storage bricks 2 to prevent the granular heat storage materials 3 from leaking out of the heat storage and supply apparatus.
In addition, a certain space is reserved at the lower part of the heat exchange tube bank 1 arranged between the two rows of heat storage bricks 2, and the position of a leakage point of the heat exchange tube bank 1 can be accurately judged. The whole heat storage device adopts a modular combination form, so that the heating power of the heat storage and supply device can be increased or reduced according to the requirements of users, and the heat storage capacity of the heat storage and supply device can be increased or reduced. All parts of the heat storage and supply device can be fixed by adopting bolt connection, and can be flexibly assembled and disassembled, thereby greatly reducing the workload of installation and maintenance and reducing the time of site construction or maintenance.
Claims (6)
1. A heating apparatus for electrically heating an energy storage facility, the apparatus comprising: the heat storage bricks, the heat exchange tube bank and the U-shaped steel connecting side plates on the two sides of the heat exchange tube bank are filled with granular heat storage materials, the heat storage bricks and the heat exchange tube bank are transversely connected in parallel, and an electric heating element is arranged between the adjacent heat storage bricks;
the heat storage and supply device is overlapped and arranged into a wall shape through heat storage bricks, a high-temperature resistant metal heat exchange tube bank is clamped between each row of heat storage bricks and filled with high-temperature resistant granular heat storage materials, U-shaped steel connecting side plates are arranged between the heat storage bricks on two sides of the high-temperature resistant metal heat exchange tube bank, and the U-shaped steel connecting side plates are used for sealing gaps among the heat storage bricks and connecting and fixing the heat storage bricks;
the heat storage bricks and the heat exchange tube bank are fixed by bolts through connecting side plates made of U-shaped steel;
the cross section of the U-shaped plate of the U-shaped steel connecting side plate is U-shaped, evenly distributed bolt connecting holes are drilled in the opposite side plates of the U-shaped plate respectively, bolts are adopted between the U-shaped steel connecting side plates to penetrate through the bolt connecting holes for connection, heat storage bricks are installed between the U-shaped steel connecting side plates, the bolt connecting holes are located on the outer sides of the opposite heat storage bricks, heat exchange tube banks are installed between the heat storage bricks and filled with granular heat storage materials, and the U-shaped steel connecting side plates are installed at two ends of a gap between the two rows of heat storage bricks.
2. A heating apparatus for electric heating energy storage according to claim 1, wherein the heat exchange tube bank is composed of an upper and a lower horizontally arranged upper and lower collecting tubes and a vertically arranged high temperature resistant heat exchange tube between the upper and lower collecting tubes, the heat exchange tube bank being embedded in the granular heat storage material.
3. A heating apparatus with electric heating energy storage according to claim 2, wherein the heat exchange tube rows are arranged in the gaps between two rows of heat storage bricks, granular heat storage materials are filled in the gaps, the heat energy in the granular heat storage materials is transferred to the heated medium in the heat exchange tubes by heat conduction, the heating medium enters the heat exchange tubes from the lower collecting tubes, the heated medium is uniformly distributed to the heat exchange tube bundles by the lower collecting tubes, the heated medium coming out of the heat exchange tube bundles is collected in the upper collecting tubes, and is sent to the heat consumers from the outlet of the upper collecting tubes.
4. A heating apparatus for energy storage by electric heating as claimed in claim 1, wherein the heat storage bricks are of a flat square shape, upper and lower semicircular grooves are formed in the upper and lower faces of the heat storage bricks at positions which are centrosymmetric, a through circular hole is formed in the middle of the brick joint when the heat storage bricks are overlapped, the electric heating element is installed in the circular hole, and the electric heating element after being energized heats the heat storage bricks and transfers heat to the high temperature resistant granular heat storage material through the heat storage bricks.
5. A heating installation for storing energy by electrical heating as claimed in claim 1, wherein a space is provided between two rows of bricks at the lower part of the row of heat exchange tubes.
6. An electrically heated stored energy heating apparatus as claimed in claim 1 wherein the entire heat storage means is in the form of a modular assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120711.6A CN106642295B (en) | 2017-03-02 | 2017-03-02 | Heating device for electric heating energy storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710120711.6A CN106642295B (en) | 2017-03-02 | 2017-03-02 | Heating device for electric heating energy storage |
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| Publication Number | Publication Date |
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| CN106642295A CN106642295A (en) | 2017-05-10 |
| CN106642295B true CN106642295B (en) | 2022-07-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710120711.6A Active CN106642295B (en) | 2017-03-02 | 2017-03-02 | Heating device for electric heating energy storage |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109415U (en) * | 1992-01-29 | 1992-07-08 | 北京市建筑轻钢结构厂 | Assembly type partition wall |
| JP2002054818A (en) * | 2000-08-09 | 2002-02-20 | Ripooto Service Hokkaido:Kk | Heat storage type floor heating device by cobble gravel |
| KR20020017134A (en) * | 2000-08-29 | 2002-03-07 | 박순옥 | Regenerator of regenerative electric boiler |
| CN204630109U (en) * | 2015-04-15 | 2015-09-09 | 西安科弘厨房工程设备有限责任公司 | High temperature fluid medium/gitter brick compound heat storage and heat supply system |
| CN105402799A (en) * | 2015-12-28 | 2016-03-16 | 高忠凡 | Solid heat storage and pneumatic heat exchange heating installation |
| CN205175194U (en) * | 2015-12-10 | 2016-04-20 | 刘华军 | Solid -state and liquid heat accumulation device that mixes |
| CN205332330U (en) * | 2015-12-31 | 2016-06-22 | 徐甲兴 | Double -phase heat accumulation formula electric boiler of solid -liquid |
| CN206582956U (en) * | 2017-03-02 | 2017-10-24 | 宋世海 | A kind of heating plant of electric heating energy |
-
2017
- 2017-03-02 CN CN201710120711.6A patent/CN106642295B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2109415U (en) * | 1992-01-29 | 1992-07-08 | 北京市建筑轻钢结构厂 | Assembly type partition wall |
| JP2002054818A (en) * | 2000-08-09 | 2002-02-20 | Ripooto Service Hokkaido:Kk | Heat storage type floor heating device by cobble gravel |
| KR20020017134A (en) * | 2000-08-29 | 2002-03-07 | 박순옥 | Regenerator of regenerative electric boiler |
| CN204630109U (en) * | 2015-04-15 | 2015-09-09 | 西安科弘厨房工程设备有限责任公司 | High temperature fluid medium/gitter brick compound heat storage and heat supply system |
| CN205175194U (en) * | 2015-12-10 | 2016-04-20 | 刘华军 | Solid -state and liquid heat accumulation device that mixes |
| CN105402799A (en) * | 2015-12-28 | 2016-03-16 | 高忠凡 | Solid heat storage and pneumatic heat exchange heating installation |
| CN205332330U (en) * | 2015-12-31 | 2016-06-22 | 徐甲兴 | Double -phase heat accumulation formula electric boiler of solid -liquid |
| CN206582956U (en) * | 2017-03-02 | 2017-10-24 | 宋世海 | A kind of heating plant of electric heating energy |
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| CN106642295A (en) | 2017-05-10 |
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