CN213931128U - Electric heating solid heat storage waste heat utilization device - Google Patents
Electric heating solid heat storage waste heat utilization device Download PDFInfo
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- CN213931128U CN213931128U CN202022927712.1U CN202022927712U CN213931128U CN 213931128 U CN213931128 U CN 213931128U CN 202022927712 U CN202022927712 U CN 202022927712U CN 213931128 U CN213931128 U CN 213931128U
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Abstract
The utility model discloses an electrical heating solid heat accumulation waste heat utilization equipment, including the heat accumulator, the heat accumulator includes heat accumulator upper portion and heat accumulator lower part, and the outside wind path heat transfer pipeline that is provided with in heat accumulator upper portion, heat accumulator lower part are provided with water route heat transfer pipeline, are provided with the heat exchanger on the wind path heat transfer pipeline, heat exchanger and hot user's heat supply pipeline heat transfer, the heat accumulator passes through the steel sheet to be separated for heat accumulator upper portion, heat accumulator lower part, and the steel sheet upper berth has the heat preservation cotton, and wind path heat transfer pipeline includes the tuber pipe, and the tuber pipe just is the closure with the switch-on of heat accumulator upper portion, be provided with the fan in the tuber pipe. The utility model discloses a water route heat transfer pipeline make full use of the heat accumulation internal heat insulation firebrick of lower floor originally, reduce the heat loss in the heat accumulation body. And the heat of the heat storage water tank is converted and stored, so that the original ineffective heat in the heat storage body is utilized to a great extent. The utility model discloses can carry the heat when needing, compensate the heat not enough, it is pollution-free to save energy.
Description
Technical Field
The utility model belongs to electric heat accumulation heating field, concretely relates to electric heating solid heat accumulation waste heat utilization equipment.
Background
Along with the development of economy and the progress of society, the living standard of people is continuously improved, and simultaneously, higher requirements are provided for heating, in northern areas of China, the heating energy consumption occupies more than half of the energy consumption of buildings, and energy conservation and emission reduction are still important at the present stage.
By combining energy conservation and emission reduction and the encouragement policy of the state for implementing peak-valley electricity price, the electric heat storage heating technology is rapidly developed in China. As a novel energy storage technology, the method mainly utilizes the national peak-valley electricity price policy, during the night valley electricity period, the electric energy is converted into heat through an electric boiler, one part of the heat is stored in a heat storage device, and the other part of the heat is directly or indirectly supplied to a heat user; and releasing the heat in the heat storage equipment to heat users in the off-peak electricity period in the daytime.
However, the solid heat accumulating type electric heating unit has short development time in China, and the technology is not mature enough, so that a great problem still exists. The temperature in the heat accumulator can reach 800 ℃, and the heat accumulation capacity of the heat accumulator is greatly improved. But the heat can not completely be isolated to the several layers of fire-resistant insulating bricks that heat accumulator lower floor played the supporting and heat-insulating effect and lay originally, on the contrary because its heat conductivity, can conduct in the resistant firebrick and store most heat, but cause a large amount of heat losses because of it can't carry out effective heat transfer. Resulting in increased energy consumption and increased operating costs.
Disclosure of Invention
The utility model discloses a solve the problem that prior art exists and propose, its purpose provides an electrical heating solid heat accumulation waste heat utilization equipment.
The technical scheme of the utility model is that: the utility model provides an electrical heating solid heat accumulation waste heat utilization equipment, includes the heat accumulator, the heat accumulator includes heat accumulator upper portion and heat accumulator lower part, heat accumulator upper portion outside is provided with wind path heat transfer pipeline, the heat accumulator lower part is provided with water path heat transfer pipeline, be provided with the heat exchanger on the wind path heat transfer pipeline, heat exchanger and hot user's heat supply pipeline heat transfer.
Furthermore, the heat accumulator is divided into an upper part and a lower part by a steel plate, and the steel plate is paved with heat insulation cotton.
Furthermore, the air path heat exchange pipeline comprises an air pipe, the air pipe is communicated with the upper part of the heat accumulator and is in a closed shape, and a fan is arranged in the air pipe.
Furthermore, the heat supply pipeline comprises a heat supply branch pipe and a water return branch pipe which are communicated with the heat consumer, the inlet of the heat supply branch pipe and the outlet of the water return branch pipe are connected to the heat exchanger, and the heat supply branch pipe and the water return branch pipe are water pipes with the same diameter.
Furthermore, the waterway heat exchange pipeline comprises a heat storage water pipe for storing heat for the heat storage water tank and a heat exchange water pipe for supplying heat for a heat user.
Further, the heat storage water pipe comprises a low-temperature water pipe for feeding low-temperature water in the heat storage water tank into the lower portion of the heat storage body and a high-temperature water pipe for feeding high-temperature water into the heat storage water tank, and the low-temperature water pipe and the high-temperature water pipe are communicated with the water distribution assembly in the lower portion of the heat storage body.
Furthermore, the heat exchange water pipe comprises a header pipe communicated with the heat storage water tank, wherein a first branch pipe and a second branch pipe are formed on the header pipe through three-way joints, the first branch pipe is communicated with the heat supply branch pipe, the second branch pipe is communicated with the return water branch pipe, and temperature control valves are arranged on the first branch pipe and the second branch pipe.
The utility model has the advantages as follows:
the utility model discloses a water route heat transfer pipeline make full use of the heat accumulation internal heat insulation firebrick of lower floor originally, reduce the heat loss in the heat accumulation body. And the heat of the heat storage water tank is converted and stored, so that the original ineffective heat in the heat storage body is utilized to a great extent.
The utility model discloses make full use of heat accumulation body internal heat to convert it to heat accumulation water tank high-temperature water and store with the sensible heat mode, carry the heat when needing, compensate the heat not enough, this method energy-saving pollution-free, easy operation.
Drawings
Fig. 1 is an overall schematic view of the present invention;
FIG. 2 is a schematic structural view of a heat accumulator according to the present invention;
FIG. 3 is a schematic view of the lower portion of the intermediate heat storage body of the present invention;
FIG. 4 is a perspective view of the refractory brick of the present invention;
wherein:
1 heat accumulator 2 blower
3 heat storage water tank 4 heat exchanger
5 users of heat
21 air duct
No. 32I temperature control valve of 31 heat meter
No. 33 II temperature control valve and No. 34 III temperature control valve
35 IV thermo valve
No. 41V temperature control valve 42 water pipe
11 upper part of heat accumulator and 12 lower part of heat accumulator
13 heat preservation cotton 14 steel plate
201 refractory brick 202 channel
203 heat pipe 204 water separator
205 heat pipe inlet pipe 206 water collector
207 heat pipe outlet pipe 208 support frame
301 the firebricks are hollowed out.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples:
as shown in fig. 1 to 4, an electric heating solid heat storage waste heat utilization device comprises a heat accumulator 1, wherein the heat accumulator 1 comprises a heat accumulator upper portion 11 and a heat accumulator lower portion 12, an air path heat exchange pipeline is arranged outside the heat accumulator upper portion 11, a water path heat exchange pipeline is arranged on the heat accumulator lower portion 12, a heat exchanger 4 is arranged on the air path heat exchange pipeline, and the heat exchanger 4 exchanges heat with a heat supply pipeline of a hot user 5.
The heat accumulator 1 is divided into an upper heat accumulator part 11 and a lower heat accumulator part 12 through a steel plate 14, and heat insulation cotton 13 is paved on the steel plate 14.
The air path heat exchange pipeline comprises an air pipe 21, the air pipe 21 is communicated with the upper part 11 of the heat accumulator and is in a closed shape, and a fan 2 is arranged in the air pipe 21.
The heat supply pipeline comprises a heat supply branch pipe and a water return branch pipe which are communicated with a heat consumer 5, the inlet of the heat supply branch pipe and the outlet of the water return branch pipe are both connected to the heat exchanger 4, and the heat supply branch pipe and the water return branch pipe are water pipes 42 with the same diameter.
The water path heat exchange pipeline comprises a heat storage water pipe for storing heat for the heat storage water tank 3 and a heat exchange water pipe for supplying heat for the heat user 5.
The heat storage water pipe comprises a low-temperature water pipe for sending low-temperature water in the heat storage water tank 3 into the heat storage body lower part 12 and a high-temperature water pipe for sending high-temperature water into the heat storage water tank 3, and the low-temperature water pipe and the high-temperature water pipe are communicated with the water distribution assembly in the heat storage body lower part 12.
The heat exchange water pipe comprises a header pipe communicated with the heat storage water tank 3, wherein a first branch pipe and a second branch pipe are formed on the header pipe through three-way joints, the first branch pipe is communicated with the heat supply branch pipe, the second branch pipe is communicated with the return water branch pipe, and temperature control valves are arranged on the first branch pipe and the second branch pipe.
Non-porous refractory bricks are arranged in the upper part 11 of the heat accumulator, porous refractory bricks 201 are arranged in the lower part 12 of the heat accumulator, and refractory brick dug holes 301 are formed in the refractory bricks 201. The non-porous refractory bricks and the porous refractory bricks are stacked in layers.
The water diversion assembly comprises a heat pipe water inlet pipe 205 and a heat pipe water outlet pipe 207, the heat pipe water inlet pipe 205 is communicated with a low-temperature water pipe, the heat pipe water outlet pipe 207 is communicated with a high-temperature water pipe, and the heat pipe water inlet pipe 205 and the heat pipe water outlet pipe 207 are respectively positioned on two sides of the refractory brick 201.
The free end of the heat pipe water inlet pipe 205 is communicated with the water separator 204, the free end of the heat pipe water outlet pipe 207 is communicated with the water collector 206, the outer walls of the water separator 204 and the water collector 206 are communicated through a plurality of heat pipes 203, the refractory bricks 201 are stacked in layers, holes 301 of the refractory bricks are dug to form a hole passage 202, and the heat pipes 203 penetrate through the hole passage 202.
Preferably, a support frame 208 is disposed in the lower portion 12 of the heat storage body, and the support frame 208 supports the water collector 204 and the water collector 206.
The heat meter 31 and the temperature control valve I32 are arranged on the main pipe, and the temperature control valve I32 is used for controlling the main pipe.
Be provided with No. II temperature-sensing valves 33 on No. I branch pipe, No. II temperature-sensing valves 33 are used for controlling No. I branch pipe, are provided with No. III temperature-sensing valves 34 on No. II branch pipes, No. III temperature-sensing valves 34 are used for controlling No. II branch pipes.
Yet another embodiment
The utility model provides an electrical heating solid heat accumulation waste heat utilization equipment, includes heat accumulator 1, heat accumulator 1 includes heat accumulator upper portion 11 and heat accumulator lower part 12, 11 outsides on heat accumulator upper portion are provided with wind path heat transfer pipeline, heat accumulator lower part 12 is provided with water path heat transfer pipeline, be provided with heat exchanger 4 on the wind path heat transfer pipeline, heat exchanger 4 and hot user 5's heat supply pipeline heat transfer.
The heat accumulator 1 is divided into an upper heat accumulator part 11 and a lower heat accumulator part 12 through a steel plate 14, and heat insulation cotton 13 is paved on the steel plate 14.
The air path heat exchange pipeline comprises an air pipe 21, the air pipe 21 is communicated with the upper part 11 of the heat accumulator and is in a closed shape, and a fan 2 is arranged in the air pipe 21.
The heat supply pipeline comprises a heat supply branch pipe and a water return branch pipe which are communicated with a heat consumer 5, the inlet of the heat supply branch pipe and the outlet of the water return branch pipe are both connected to the heat exchanger 4, and the heat supply branch pipe and the water return branch pipe are water pipes 42 with the same diameter.
The water path heat exchange pipeline comprises a heat storage water pipe for storing heat for the heat storage water tank 3 and a heat exchange water pipe for supplying heat for the heat user 5.
The heat storage water pipe comprises a low-temperature water pipe for sending low-temperature water in the heat storage water tank 3 into the heat storage body lower part 12 and a high-temperature water pipe for sending high-temperature water into the heat storage water tank 3, and the low-temperature water pipe and the high-temperature water pipe are communicated with the water distribution assembly in the heat storage body lower part 12.
The heat exchange water pipe comprises a header pipe communicated with the heat storage water tank 3, wherein a first branch pipe and a second branch pipe are formed on the header pipe through three-way joints, the first branch pipe is communicated with the heat supply branch pipe, the second branch pipe is communicated with the return water branch pipe, and temperature control valves are arranged on the first branch pipe and the second branch pipe.
Non-porous refractory bricks are arranged in the upper part 11 of the heat accumulator, porous refractory bricks 201 are arranged in the lower part 12 of the heat accumulator, and refractory brick dug holes 301 are formed in the refractory bricks 201. The non-porous refractory bricks and the porous refractory bricks are stacked in layers.
The water diversion assembly comprises a heat pipe water inlet pipe 205 and a heat pipe water outlet pipe 207, the heat pipe water inlet pipe 205 is communicated with a low-temperature water pipe, the heat pipe water outlet pipe 207 is communicated with a high-temperature water pipe, and the heat pipe water inlet pipe 205 and the heat pipe water outlet pipe 207 are respectively positioned on two sides of the refractory brick 201.
The free end of the heat pipe water inlet pipe 205 is communicated with the water separator 204, the free end of the heat pipe water outlet pipe 207 is communicated with the water collector 206, the outer walls of the water separator 204 and the water collector 206 are communicated through a plurality of heat pipes 203, the refractory bricks 201 are stacked in layers, holes 301 of the refractory bricks are dug to form a hole passage 202, and the heat pipes 203 penetrate through the hole passage 202.
Preferably, a support frame 208 is disposed in the lower portion 12 of the heat storage body, and the support frame 208 supports the water collector 204 and the water collector 206.
The heat meter 31 and the temperature control valve I32 are arranged on the main pipe, and the temperature control valve I32 is used for controlling the main pipe.
Be provided with No. II temperature-sensing valves 33 on No. I branch pipe, No. II temperature-sensing valves 33 are used for controlling No. I branch pipe, are provided with No. III temperature-sensing valves 34 on No. II branch pipes, No. III temperature-sensing valves 34 are used for controlling No. II branch pipes.
And a communicating pipe for communicating the low-temperature water pipe and the return water branch pipe is arranged between the low-temperature water pipe and the return water branch pipe, and an IV-grade temperature control valve 35 is arranged on the communicating pipe.
Preferably, the return water branch pipe is further provided with a V-shaped temperature control valve 41, and the V-shaped temperature control valve 41 is located between the communicating pipe and the II-shaped branch pipe.
When the secondary side of the heat exchanger is communicated with the connecting pipe of the heat storage water tank 3, the IV temperature control valve 35 is opened to keep the balance of the water inlet and outlet amount in the heat storage water tank 3. Meanwhile, the opening degree of the V-shaped temperature control valve 41 on the water return branch pipe of the heat exchanger is adjusted through a control system, and the water quantity of the water return pipe 42 entering the heat exchanger is guaranteed.
The steel plate 14 is built on the top layer of a refractory brick 201 of the heat accumulator lower part 12 and used for separating the internal space of the heat accumulator 1, the heat-insulating cotton 13 is uniformly laid on the upper layer of the steel plate 14 to play a role in heat insulation, and a layer of non-porous heat-accumulating brick is laid above the heat-insulating cotton 13 to play a role in simple support.
The firebrick digging hole 301 is in a semi-cylindrical shape, and the upper layer and the lower layer of firebricks 201 are spliced to form a pore passage 202.
The heat storage water tank 3 is arranged on the ground in an overhead manner, and has a height difference with the heat pipe 203 at the lower part of the heat accumulator.
The water separator 204 and the water collector 206 are overhead between the two layers of heat pipes 203 through respective support frames 208, and the upper layer and the lower layer of heat pipes are respectively communicated with the water separator 204 and the water collector 206 at an angle of 45 degrees.
A method for electrically heating a solid heat storage waste heat utilization device comprises the following steps:
i, heat exchange is carried out at the upper part of the heat accumulator
In the heat release process of the off-peak electricity heat accumulator 1 in the daytime, low-temperature air in the air pipe 21 is blown into the upper part 11 of the heat accumulator under the driving action of the fan 2, heat is exchanged through the air passage of the heat accumulation brick, and high-temperature air enters the heat exchanger 4 through the air pipe 21 to heat the secondary side;
ii.supply heat to the hot user
The low-temperature water on the secondary side of the heat exchanger 4 enters, the high-temperature water exits, and the heat is exchanged and is supplied to a heat user 5 through a water pipe;
iii, heat storage is carried out by a heat storage water tank
Meanwhile, the low-temperature water pipe conveys low-temperature water into the water distribution component in the lower part 12 of the heat accumulator under the action of the pressure pump of the heat storage water tank 3, and the high-temperature water pipe flows high-temperature water into the heat storage water tank 3 after heat exchange;
iv, the temperature of the water in the heat storage water tank rises uniformly
Hot water enters the heat storage water tank 3 under the condition of entering and cold water exits from the heat storage water tank, and cold and hot water circulation in the water tank is enhanced according to the principles of water temperature rise and density reduction, so that the cold and hot stratification phenomenon is reduced, and the temperature in the heat storage water tank rises uniformly;
v. heat storage water tank for supplying heat
When the outlet air temperature of the upper part 11 of the heat accumulator is reduced or the heat efficiency of the heat exchanger 4 is reduced and the heat supply requirement of the heat user 5 cannot be met, the heat exchange water pipe of the heat accumulation water tank 3 is opened to supply heat for the heat user 5;
vi maintaining water balance in and out
The water return branch pipe of the heat consumer 5 and the low-temperature water pipe of the heat storage water tank 3 balance the water inlet and outlet of the heat storage water tank 3.
In step v, when the water temperature of the heat storage water tank 3 meets the secondary side water supply temperature, the branch pipe I is opened, and the water in the heat storage water tank 3 directly supplies heat for the hot user.
In step v, when the water temperature of the heat storage water tank 3 does not meet the secondary side water supply temperature, the branch pipe II is opened, and the water in the heat storage water tank 3 is heated through heat exchange of the heat exchanger 4 to supply heat.
The bottommost layer of the traditional heat accumulator has a supporting and heat-insulating effect for the refractory bricks, but the refractory bricks cannot completely insulate heat, and the bottom refractory bricks still exist and conduct a large amount of heat, so that a large amount of heat loss is caused.
The utility model discloses a heat accumulator lower part heat pipe heat transfer device, the ineffective heat of the insulating brick originally in the make full use of heat accumulator reduces the heat accumulator heat loss. And when the heat storage quantity is reduced in the heat accumulator, the air outlet temperature is too low or the heat efficiency of the heat exchanger cannot meet the heating demand of a heat user, high-temperature water stored in the heat storage water tank through heat exchange of the heat pipe can be used, the heat power of the heat exchanger is improved, the heating demand of the heat user is met, and the heat conversion efficiency of the electric heat storage heating system is further improved.
Claims (7)
1. The utility model provides an electrical heating solid heat accumulation waste heat utilization equipment, includes heat accumulator (1), its characterized in that: the heat accumulator (1) comprises a heat accumulator upper portion (11) and a heat accumulator lower portion (12), an air path heat exchange pipeline is arranged outside the heat accumulator upper portion (11), a water path heat exchange pipeline is arranged on the heat accumulator lower portion (12), a heat exchanger (4) is arranged on the air path heat exchange pipeline, and the heat exchanger (4) exchanges heat with a heat supply pipeline of a hot user (5).
2. The electric heating solid heat storage waste heat utilization device of claim 1, characterized in that: the heat accumulator (1) is divided into an upper heat accumulator part (11) and a lower heat accumulator part (12) through a steel plate (14), and heat insulation cotton (13) is paved on the steel plate (14).
3. The electric heating solid heat storage waste heat utilization device of claim 1, characterized in that: the air path heat exchange pipeline comprises an air pipe (21), the air pipe (21) is communicated with the upper part (11) of the heat accumulator and is closed, and a fan (2) is arranged in the air pipe (21).
4. The electric heating solid heat storage waste heat utilization device of claim 1, characterized in that: the heat supply pipeline comprises a heat supply branch pipe and a water return branch pipe which are communicated with a heat consumer (5), the inlet of the heat supply branch pipe and the outlet of the water return branch pipe are both connected to the heat exchanger (4), and the heat supply branch pipe and the water return branch pipe are water pipes (42) with the same diameter.
5. The electric heating solid heat storage waste heat utilization device of claim 2, characterized in that: the waterway heat exchange pipeline comprises a heat storage water pipe for storing heat for the heat storage water tank (3) and a heat exchange water pipe for supplying heat for the heat user (5).
6. The electric heating solid heat storage waste heat utilization device of claim 5, characterized in that: the heat storage water pipe comprises a low-temperature water pipe and a high-temperature water pipe, wherein the low-temperature water pipe is used for sending low-temperature water in the heat storage water tank (3) into the lower portion (12) of the heat accumulator, the high-temperature water pipe is used for sending high-temperature water into the heat storage water tank (3), and the low-temperature water pipe and the high-temperature water pipe are communicated with a water distribution assembly in the lower portion (12) of the heat accumulator.
7. The electric heating solid heat storage waste heat utilization device of claim 6, characterized in that: the heat exchange water pipe comprises a header pipe communicated with the heat storage water tank (3), wherein a first branch pipe and a second branch pipe are formed on the header pipe through three-way joints, the first branch pipe is communicated with the heat supply branch pipe, the second branch pipe is communicated with the return water branch pipe, and temperature control valves are arranged on the first branch pipe and the second branch pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022927712.1U CN213931128U (en) | 2020-12-09 | 2020-12-09 | Electric heating solid heat storage waste heat utilization device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022927712.1U CN213931128U (en) | 2020-12-09 | 2020-12-09 | Electric heating solid heat storage waste heat utilization device |
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| CN213931128U true CN213931128U (en) | 2021-08-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413700A (en) * | 2020-12-09 | 2021-02-26 | 河北建筑工程学院 | Electric heating solid heat storage waste heat utilization system and method thereof |
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- 2020-12-09 CN CN202022927712.1U patent/CN213931128U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112413700A (en) * | 2020-12-09 | 2021-02-26 | 河北建筑工程学院 | Electric heating solid heat storage waste heat utilization system and method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220407 Address after: 075000 No. 114, Zone E, building 6, Life Science Park, No. 8, Shenkong Road, high tech Industrial Development Zone, Zhangjiakou, Hebei Province Patentee after: Hebei Zerui energy saving new energy Co.,Ltd. Address before: No. 13 Chaoyang Street, Zhangjiakou, Hebei, Hebei Patentee before: HEBEI University OF ARCHITECTURE |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: An electric heating solid heat storage waste heat utilization device Effective date of registration: 20220812 Granted publication date: 20210810 Pledgee: Zhangjiakou City Financing Guarantee Group Co., Ltd. Pledgor: Hebei Zerui energy saving new energy Co.,Ltd. Registration number: Y2022980012518 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |