CN210951851U - Solid electric heating energy storage multi-fan application device - Google Patents

Abstract

The utility model discloses a solid electric heat energy storage multi-fan application apparatus, including the heat accumulator, set up first draught fan on the air-out pipeline of heat accumulator air outlet department, set up first bypass wind channel on the air-out pipeline between first draught fan and the heat accumulator air outlet, first bypass wind channel forms first wind channel return circuit with the intake stack intercommunication of heat accumulator air inlet department, sets up the second draught fan on the first bypass wind channel. The utility model provides a solid electric heat energy storage multi-fan application device, it has replaced the application of single fan in the market, through the mode that increases a plurality of fans, realizes each function in the system operation respectively for accurate control can both be realized to every function of system.

Description

Solid electric heating energy storage multi-fan application device

Technical Field

The utility model belongs to the industrial heat field of solid electric heat energy storage, especially be applied to the hot-blast supply production type enterprise of solid electric heat energy storage.

Background

The intelligent electric energy storage technology is to store the surplus electric energy and intermittent electric energy at night in a heat energy mode by utilizing a heat storage material so as to meet the industrial heat production requirement. In 2017, the electric power trade market is about to be tested, and in 2018 and 2020, the electric power industry is about to be completely market-changed. During the period, as the smart grid is built, the electricity utilization big data are collected continuously, and at the moment, the electricity price band tends to show the trend in minutes. The 'intelligent electricity energy storage' technology can fully utilize redundant electricity in the low electricity price to collect energy, and release the energy in the high electricity price, thereby avoiding the energy consumption and reducing the operation cost of industrial enterprises.

There is a solid electric heat energy storage technology in the "wisdom electricity energy storage" series that vigorously promotes, and it mainly utilizes a solid heat accumulation alloy to change the mode of valley price electricity at night into heat energy and stores, and in daytime the enterprise uses hot period, releases away the heat energy of storage with hot-blast form.

The heat of solid heat storage alloy in the heat accumulator is all inhaled the new trend through a big draught fan in the design of traditional solid electric heat energy memory and holds the heat and supply to with the thermal equipment, and such design can all have following defect and not enough generally:

1. with the difference of air volume requirements of users and the consideration of overcoming the system resistance, the fan may have to be selected very large, which causes great difficulty in subsequent transportation and installation;

2. fresh air in the surrounding environment of the heat storage machine is directly extracted by a fan to enter the heat storage machine set and directly contact with the high-temperature heat storage alloy during normal operation, so that the service life of the heat storage alloy is greatly shortened;

3. with increasingly strict requirements of heat consumers on the quality and parameters (such as flow, temperature, pressure and the like) of a heat source, one fan cannot realize accurate control on the temperature of output hot air, and further cannot achieve a full-automatic operation state.

4. Due to the increase of equipment and the complexity of the system, the selection of a fan is more difficult.

Disclosure of Invention

The utility model provides a solid electric heat energy storage multi-fan application device can realize that the system is safer, stable, the automatic operation.

The utility model provides a technical problem adopt following technical scheme to realize:

the utility model provides a solid electric heat energy storage multi-fan application apparatus, includes the heat accumulator, sets up first draught fan on the air-out pipeline of heat accumulator air outlet department, set up first bypass wind channel on the air-out pipeline between first draught fan and the heat accumulator air outlet, first bypass wind channel forms first wind channel return circuit with the intake stack intercommunication of heat accumulator air inlet department, sets up the second draught fan on the first bypass wind channel.

Further, solid electric heat energy storage multi-fan application apparatus, set up second bypass wind channel between the heat accumulation machine entry of heat accumulation machine inside and the heat accumulation machine air outlet, form the second wind channel return circuit between heat accumulation machine entry and the heat accumulation machine air outlet in the heat accumulation machine, set up the third draught fan on the second bypass wind channel.

Furthermore, the solid electric heating energy storage multi-fan application device is characterized in that an air mixing valve is arranged on a second bypass air channel between a third induced draft fan and an air outlet of the heat storage machine.

Furthermore, solid electric heat energy storage multi-fan application apparatus, its characterized in that, the heat accumulator is the solid heat accumulator.

The utility model provides a solid electric heat energy storage multi-fan application device, it has replaced the application of single fan in the market, through the mode that increases a plurality of fans, realizes each function in the system operation respectively for accurate control can both be realized to every function of system. The specific working principle and working process are described as follows:

1. the heat storage period is as follows: heating the heat storage alloy in the heat storage machine by utilizing valley price electricity at night, and storing electric energy in the heat storage machine in a heat energy mode;

2. heat release period:

(1) the second induced draft fan uses the extracted part of hot air to heat cold air entering the system newly, so as to realize the purpose of preheating the fresh air;

(2) the third induced draft fan pumps part of the preheated fresh air to the air outlet of the heat storage machine, the fresh air is mixed with hot air, and the air outlet temperature is accurately controlled through fan frequency conversion and an air valve;

(3) the first induced draft fan mainly overcomes system resistance, and conveys the heated fresh air to the final heat utilization equipment.

The utility model discloses beneficial effect does:

1. the size of each fan cannot be large, so that the space occupied by equipment is greatly saved;

2. the design of the first induced draft fan solves the problem that fresh air is in direct contact with the high-temperature heat storage alloy, prolongs the service life of the heat storage alloy and enables the system to operate more stably;

3. the third induced draft fan can realize the accurate control of the air temperature of the air outlet, meet the arbitrary heat demand of the customer, and provide the guarantee for the automatic operation of the system at the same time;

4. the multiple fans are comprehensively applied and matched with each other, so that the system is safe, stable and automatic in operation.

Drawings

FIG. 1 is a schematic structural view of a solid electric heating energy storage multi-fan application device according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the multi-fan operation process of the solid electric heating energy storage multi-fan application device in embodiment 1 of the present invention;

in the above fig. 1 and 2, 1 is a first induced draft fan, 2 is a first bypass air duct, 3 is a second induced draft fan, 4 is a second bypass air duct, 5 is a third induced draft fan, 6 is a mixing valve, and 7 is a heat accumulator.

The specific implementation mode is as follows:

example 1

As shown in fig. 1, the solid electric heat energy storage multi-fan application device provided by this embodiment includes a heat accumulator 7, a first induced draft fan 1 is arranged on an air outlet pipeline at an air outlet of the heat accumulator 7, a first bypass air duct 2 is arranged on an air outlet pipeline between the first induced draft fan 1 and an air outlet of the heat accumulator, the first bypass air duct 2 is communicated with an air inlet pipeline at the air inlet of the heat accumulator to form a first air duct loop, a second induced draft fan 3 is arranged on the first bypass air duct 2, a second bypass air duct 4 is arranged between an air inlet of the heat accumulator 7 and the air outlet of the heat accumulator, a second air duct loop between an inlet of the heat accumulator and the air outlet of the heat accumulator is formed, a third induced draft fan 5 is arranged on the second bypass air duct 4, and an air mixing valve 6 is arranged on the second bypass air duct 4 between the third induced draft fan 5 and the.

Further, the above-described heat accumulator 7 may be a solid heat accumulator.

The solid electric heat energy storage multi-fan application device that this embodiment provided, concrete working process is as shown in fig. 2, the part hot-blast mixture that comes is carried with second draught fan 3 to the new trend, it enters heat accumulator 7 to realize the new trend after preheating, under the effect of first draught fan 1, the wind channel circulation along heat accumulation alloy, absorb heat accumulation alloy self heat simultaneously and become the air outlet that hot-blast reachs heat accumulator 7, when the temperature surpassed the hot temperature of factory, open third draught fan 5, the extraction part preheats and the air outlet of heat accumulator 7 is sneaked into to unheated cold wind, the accurate control to hot-blast temperature is realized to the mixing valve 6 of frequency through controlling third draught fan 5 and heat accumulator 7 air outlet upper end, hot-blast is carried the hot-equipment of enterprise by first draught fan 1 at last.

During heat storage, all the fan valves are closed, and the electric heating pipes in the heat storage machine 7 are electrified to convert electric energy into heat energy for storage.

When heat is released, the air quantity and the temperature of the outlet air are controlled by adjusting the frequency of the fan and the opening of the air mixing valve, so that the hot air output can meet the production requirement and cannot cause excessive loss.

Claims (4)

1. The utility model provides a solid electric heat energy storage multi-fan application apparatus, includes the heat accumulator, its characterized in that sets up first draught fan (1) on the air-out pipeline of heat accumulator air outlet department, set up first bypass wind channel (2) on the air-out pipeline between first draught fan (1) and the heat accumulator air outlet, first bypass wind channel (2) form first wind channel return circuit with the intake stack intercommunication of heat accumulator air inlet department, set up second draught fan (3) on first bypass wind channel (2).

2. The solid electric heating energy storage multi-fan application device as claimed in claim 1, wherein a second bypass air duct (4) is arranged between the heat accumulator inlet and the heat accumulator outlet inside the heat accumulator to form a second air duct loop between the heat accumulator inlet and the heat accumulator outlet inside the heat accumulator, and a third induced draft fan (5) is arranged on the second bypass air duct (4).

3. The solid electric heating energy storage multi-fan application device as claimed in claim 2, wherein a mixing valve (6) is arranged on the second bypass air duct (4) between the third induced draft fan (5) and the air outlet of the heat storage machine.

4. The solid electric heat energy storage multi-fan application device of claim 1, wherein the heat accumulator is a solid heat accumulator.

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