CN113686188B - Heat storage rod long-distance mobile energy storage system and operation method thereof - Google Patents

Abstract

The invention provides a long-distance movable energy storage system of a heat storage rod and an operation method thereof, wherein the movable energy storage system comprises a heat storage unit, a conveying unit, a heat release unit and the heat storage rod; the heat storage unit comprises a heat storage and exchange cavity, a conveying cavity, an outlet airflow cavity and an inlet airflow cavity; the conveying unit comprises a movable device and a storage cavity arranged on the movable device; the heat release unit comprises a heat release heat exchange cavity, a second heat exchange cavity, a conveying cavity, an outlet airflow cavity and an inlet airflow cavity; the heat storage and exchange cavity, the heat release and exchange cavity and the storage cavity are all used for storing the heat storage rod; the conveying unit moves between the heat storage unit and the heat release unit for conveying the heat storage rod and is in butt joint with the conveying cavity; the mobile energy storage system has the advantages of modularization of the heat storage unit, no long-time waiting of a heat storage vehicle in the heat storage and release process, high daily heat storage and release circulation efficiency and low comprehensive operation cost, and is suitable for the fields of Yu Feire utilization and the like.

Description

Heat storage rod long-distance mobile energy storage system and operation method thereof

Technical Field

The invention belongs to the technical field of energy conservation, and particularly relates to a long-distance movable energy storage system of a heat storage rod and an operation method thereof.

Background

The heat storage technology is one of the important means for solving the problems of waste heat utilization and energy utilization efficiency improvement. The technology absorbs heat in industrial waste heat by means of the heat storage material, and realizes the storage or release of the heat. Aiming at the problems of long-distance heat energy storage and utilization, mobile energy storage technology is often adopted to store the waste heat of high-energy-consumption industrial systems such as chemical plants, thermal power plants and the like, and then the waste heat is transferred to a heat utilization unit with a long distance for utilization, such as central heat supply, hot water supply, standby heat sources and the like. In summary, the mobile energy storage technology has the main advantages of recycling industrial waste heat and improving the energy utilization rate. However, the mobile energy storage technology at the present stage still has certain defects: the vehicle is used for long-distance transportation, namely, the vehicle provided with the energy storage device is used for heat charging, transportation and heat release, and the energy storage device is often integrated and fixed on the vehicle, so that in the process of heat charging and heat release, the heat storage vehicle and a driver need to wait for a long time (about 3-4 hours), the recycling efficiency of the heat is reduced, the flexibility is low, the comprehensive operation and maintenance cost and the labor cost are increased, and the popularization and the application of the mobile heat storage technology in the utilization of waste heat are restricted.

Aiming at the problems of long heat storage and release time, low daily cycle utilization rate of an energy storage vehicle and high operation cost of the conventional mobile energy storage technology, how to provide a long-distance mobile energy storage system and an operation method which have high heat cycle efficiency and reduce comprehensive operation cost without long-time waiting of the heat storage vehicle in the heat storage and release process becomes an important problem to be solved currently.

Disclosure of Invention

Aiming at the problems existing in the prior art, the invention aims to provide a long-distance mobile energy storage system of a heat storage rod and an operation method thereof, wherein the mobile energy storage system saves the time of the whole heat storage and release process, improves the daily heat storage and release circulation efficiency, reduces the comprehensive operation cost and has good industrialized application prospect by optimally designing the structures of a heat storage unit, a conveying unit, a heat release unit and the heat storage rod.

To achieve the purpose, the invention adopts the following technical scheme:

in one aspect, the invention provides a long-distance mobile energy storage system for a heat storage rod, which comprises a heat storage unit, a conveying unit, a heat release unit and a heat storage rod;

the heat storage unit comprises a heat storage and exchange cavity;

the conveying unit comprises a movable device and a storage cavity arranged on the movable device;

The heat release unit comprises a heat release heat exchange cavity;

one side of the heat storage heat exchange cavity and one side of the heat release heat exchange cavity are respectively and independently provided with a conveying cavity in parallel; a second heat exchange cavity is arranged on the other side of the heat storage heat exchange cavity in the heat release unit in parallel;

the top end and the bottom end of the heat storage heat exchange cavity and the bottom end of the heat release heat exchange cavity are also respectively and independently provided with an airflow cavity;

the heat storage and exchange cavity, the heat release and exchange cavity and the storage cavity are all used for storing the heat storage rod;

the conveying unit moves between the heat storage unit and the heat release unit for conveying the heat storage rod and is in butt joint with the conveying cavity;

the moving path of the heat storage rod comprises: after the heat storage rod is used for storing the heat in the heat storage heat exchange cavity, the heat storage rod is conveyed into the storage cavity through a conveying cavity in the heat storage unit and then conveyed into the heat release heat exchange cavity through a conveying cavity in the heat release unit.

In the invention, the heat storage heat exchange cavity and the heat release heat exchange cavity can be collectively called as a first heat exchange cavity; the heat storage unit and the heat release unit comprise a first heat exchange cavity, a conveying cavity and 2 airflow cavities, and the 4 cavities are compact in structure and occupy space; the design of the conveying cavity greatly improves the recycling efficiency of the heat storage rod and saves the waiting time; in addition, the heat release unit also comprises a second heat exchange cavity which can be used by other systems for utilizing the recovered heat, so that the heat release unit has good economic benefit.

The following technical scheme is a preferred technical scheme of the invention, but is not a limitation of the technical scheme provided by the invention, and the technical purpose and beneficial effects of the invention can be better achieved and realized through the following technical scheme.

As a preferable technical scheme of the invention, the air flow cavities at the top ends of the heat storage heat exchange cavity and the heat release heat exchange cavity are respectively outlet air flow cavities, and the air flow cavities at the bottom ends are respectively inlet air flow cavities.

Preferably, the outlet airflow cavity of the heat storage unit comprises an airflow cavity outlet baffle plate arranged inside the gas outlet and a first gas outlet pipe penetrating through the bottom of the outlet airflow cavity and the top of the heat storage heat exchange cavity.

Preferably, the outlet gas flow chamber of the heat release unit includes a second gas outlet pipe penetrating the bottom of the outlet gas flow chamber and the top of the heat release heat exchange chamber.

Preferably, the first gas outlet pipe and the second gas outlet pipe are not less than 2 and are uniformly arranged, such as 2, 3, 4, 5, 6, 7 or 8, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.

Preferably, the inlet airflow cavity comprises an airflow cavity inlet baffle plate arranged in the gas inlet and a gas inlet pipe penetrating through the top of the inlet airflow cavity and the bottom of the heat storage heat exchange cavity or the heat release heat exchange cavity.

In the invention, the inlet and outlet baffle plate of the airflow cavity is used for adjusting the air flow.

Preferably, the gas inlet pipes are not less than 2 and are uniformly arranged, such as 2, 3, 4, 5, 6, 7 or 8, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.

Preferably, the length of the gas inlet pipe is gradually increased along the direction of gas entering in the inlet gas flow cavity.

In the invention, the structural design of the gas inlet pipes can ensure that the gas flow passing through each gas inlet pipe is relatively uniform, and the problem of uneven heat distribution caused by uneven entering of gas flow is avoided.

Preferably, the inner wall of the inlet airflow cavity is provided with an insulating layer.

In the invention, the design of each heat preservation layer can avoid heat dissipation in the heat storage and release process.

As a preferable technical scheme of the invention, the top end of the side wall of the heat storage and exchange cavity is provided with a heat storage and exchange cavity inlet penetrating through the conveying cavity. And the top end of the side wall of the heat release and exchange cavity is provided with a heat release and exchange cavity inlet which penetrates through the conveying cavity.

Preferably, the lower edges of the heat storage heat exchange cavity inlet and the heat release heat exchange cavity inlet are respectively and independently provided with an upper lifting plate.

Preferably, the upper lifting plate is inclined downward toward the heat storage and exchange chamber or the heat release and exchange chamber by an angle of 2 to 8 °, for example, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, 8 °, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.

Preferably, rails are symmetrically arranged on two side walls adjacent to the side walls provided with the heat storage heat exchange cavity inlet and the heat release heat exchange cavity inlet in the heat storage heat exchange cavity and the heat release heat exchange cavity, and the rails which are symmetrically arranged are 1 group.

Preferably, the track is an elongated flat plate structure.

Preferably, the track is used for placing a heat storage rod.

Preferably, at least 2 groups of tracks, such as 2 groups, 3 groups, 4 groups, 5 groups, 6 groups, 7 groups or 8 groups, etc., are independently arranged along the height direction of the heat-releasing and heat-exchanging cavity of the heat-storing and heat-exchanging cavity, but the present invention is not limited to the recited values, and other non-recited values within the range of the values are equally applicable.

Preferably, each set of tracks is inclined downwardly and the direction of inclination is uniform, but the angle of inclination is independently 2-8 °, such as 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, or 8 °, etc., but is not limited to the recited values, and other non-recited values within this range are equally applicable.

In the present invention, the uniform declination direction of the rail means that the same end of the rail is inclined in the same direction.

Preferably, two adjacent groups of tracks are staggered to form a serpentine channel for the heat storage rod to pass through.

Preferably, the bottom end of the side wall of the heat storage and exchange cavity is provided with a heat storage and exchange cavity outlet which penetrates through the conveying cavity. And the bottom end of the side wall of the heat release and exchange cavity is provided with a heat release and exchange cavity outlet which penetrates through the conveying cavity.

Preferably, the upper edges of the heat storage heat exchange cavity outlet and the heat release heat exchange cavity outlet are provided with heat exchange cavity outlet moving risers.

According to the invention, the movable vertical plate of the outlet of the first heat exchange cavity can move up and down along the vertical direction, when the vertical plate moves downwards, the rolling of the heat storage rod is blocked, and when the vertical plate moves upwards, the heat storage rod rolls into the conveying cavity through the outlet of the first heat exchange cavity.

Preferably, lower lifting plates are arranged at the lower edges of the heat storage heat exchange cavity outlet and the heat release heat exchange cavity outlet.

Preferably, the lower lifting plate is inclined downward toward the conveying chamber by an angle of 2 to 8 °, for example, 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, or 8 °, etc., but is not limited to the recited values, and other non-recited values within the range are equally applicable.

Preferably, the inner walls of the heat storage heat exchange cavity and the heat release heat exchange cavity are respectively and independently provided with an insulation layer.

In the invention, the declination direction of the track at the topmost end is consistent with the declination direction of the upper lifting plate, the declination direction of the track at the bottommost end is consistent with the declination direction of the lower lifting plate, and one end of the track is adjacent to the end of the upper lifting plate or the lower lifting plate in order to facilitate transportation of the heat storage rod and avoid damage and drop of the heat storage rod.

As a preferable technical scheme of the invention, a heat storage rod conveying device is arranged in the conveying cavity.

Preferably, the heat storage rod conveying device comprises an upper roller, a lower roller, a chain sleeved between two ends of the upper roller and the lower roller respectively, and lifting teeth arranged on the chain.

In the invention, the lower roller is connected with the external transmission device, and the external transmission device is started to enable the lower roller to rotate, so that the chain can be driven to rotate, and the conveying function is realized.

Preferably, the end surfaces of the upper end and the lower end of the lifting tooth are arc-shaped, the sections of the left end and the right end are fans with different sizes, and one end of the fan shape with a small size is connected with the chain.

Preferably, a conveying cavity inlet is arranged at the middle upper part of the side wall of the conveying cavity and is used for being in butt joint with the conveying unit.

Preferably, a conveying cavity inlet baffle is arranged at the inlet of the conveying cavity.

Preferably, a delivery chamber outlet is provided at a lower portion of a side wall of the delivery chamber for interfacing with the delivery unit.

Preferably, a conveying cavity outlet baffle is arranged at the outlet of the conveying cavity.

Preferably, the inner wall of the conveying cavity is provided with an insulating layer.

As a preferred technical solution of the present invention, the movable apparatus includes a heat transfer vehicle.

Preferably, the top end of the side wall of the tail part of the storage cavity is provided with a conveying unit inlet.

In the invention, the storage cavity is arranged on the body of the heat transfer vehicle, so the tail part refers to the direction of the tail part of the vehicle.

Preferably, a conveying unit inlet baffle is arranged at the inlet of the conveying unit.

Preferably, the bottom end of the side wall of the tail part of the storage cavity is provided with a conveying unit outlet.

Preferably, a conveying unit outlet baffle is arranged at the outlet of the conveying unit.

Preferably, the inner wall of the storage cavity is provided with a heat insulation layer.

Preferably, a baffle plate in the conveying unit is arranged between the inner wall of the storage cavity at the upper part of the outlet of the conveying unit and the heat preservation layer.

In the invention, the inner baffle plate of the conveying unit can move up and down along the vertical direction, when the inner baffle plate moves down, the inner baffle plate can block the rolling of the heat storage rod, and when the inner baffle plate moves up, the inner baffle plate does not block the heat storage rod, and the heat storage rod rolls out through the outlet of the heat transfer vehicle.

Preferably, the storage chamber is internally provided with rails symmetrically on two side walls adjacent to the side wall provided with the inlet of the conveying unit, and the rails symmetrically arranged are defined as 1 group.

Preferably, the track is an elongated flat plate structure.

Preferably, the track is used for placing a heat storage rod.

Preferably, at least 2 sets of tracks, such as 2 sets, 3 sets, 4 sets, 5 sets, 6 sets, 7 sets or 8 sets, etc., are provided along the height of the storage chamber, but not limited to the recited values, and other non-recited values within the range of values are equally applicable. .

Preferably, each set of tracks is inclined downwardly and the direction of inclination is uniform, but the angle of inclination is independently 2-8 °, such as 2 °, 3 °, 4 °, 5 °, 6 °, 7 °, or 8 °, etc., but is not limited to the recited values, and other non-recited values within this range are equally applicable.

Preferably, two adjacent groups of tracks are staggered to form a serpentine channel for the heat storage rod to pass through

As a preferable technical scheme of the invention, the inner wall of the outlet airflow cavity of the heat release unit is provided with an insulating layer.

As a preferable technical scheme of the invention, a partition plate is arranged in the second heat exchange cavity.

Preferably, when the partition plate is a vertical partition plate arranged in the middle of the top end of the second heat exchange cavity, the interior of the second heat exchange cavity is partitioned into a U-shaped cavity.

Preferably, a U-shaped pipe penetrating through the top end of the second heat exchange cavity is arranged in the U-shaped cavity.

Preferably, when the partition plate is a horizontal partition plate arranged on the side wall of the second heat exchange cavity in a staggered manner along the horizontal direction, the inside of the second heat exchange cavity is partitioned into a serpentine cavity.

Preferably, a serpentine pipe which is matched with the horizontal partition plate is arranged in the serpentine cavity, and two end parts of the serpentine pipe penetrate through the top end of the second heat exchange cavity.

Preferably, the top end of the side wall of the second heat exchange cavity, which is close to one side of the heat release heat exchange cavity, is communicated with the outlet airflow cavity.

Preferably, a heat release unit gas outlet is arranged at the top end of the side wall of the second heat exchange cavity, which is far away from one side of the heat release heat exchange cavity.

Preferably, a heat release unit outlet baffle is disposed proximate the heat release unit gas outlet.

Preferably, the inner wall of the second heat exchange cavity is provided with an insulating layer.

As a preferable technical scheme of the invention, the heat storage rod comprises rolling ends symmetrically arranged at two ends and necking sections connected with the rolling ends.

According to the invention, through the arrangement of the rolling ends at the two ends and the necking sections, the whole heat storage rod can stably roll along the track, and the problems of left-right deflection and locking in the rolling process of the heat storage rod are avoided.

Preferably, the diameter of the rolling end is 0.5 to 0.8 times, for example 0.5 times, 0.6 times, 0.7 times or 0.8 times, etc. the maximum diameter of the heat storage rod, but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.

Preferably, the axial length of the rolling end is equal to the width of the track.

Preferably, an annular groove or a through hole is arranged between the necking sections at the two ends of the heat storage rod.

Preferably, the number of the annular grooves is not less than 8, such as 8, 9, 10, 11, 12, 13 or 14, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.

Preferably, the width and depth of two adjacent annular grooves are not equal.

In the invention, the annular grooves on the same heating rod are not uniformly arranged, the widths and depths of two adjacent annular grooves are not equal, and furthermore, the annular grooves between adjacent heat storage rods cannot be in one-to-one correspondence, and a staggered distribution mode is adopted to promote heat exchange.

In the invention, when the heat storage rods are closely adjacent, the annular grooves form air flow channels between the adjacent heat storage rods, and meanwhile, the contact area between high-temperature gas and the heat storage rods is increased, so that heat exchange is promoted; in addition, because the depth and the width of the adjacent annular grooves are not equal, airflow channels with different sizes are formed, turbulent flow generated after high-temperature gas flows through the annular grooves is promoted, full contact between the high-temperature gas and the heat storage rod is further promoted, and the heat exchange process is promoted.

In the invention, the through holes play the same role as the annular grooves, so the arrangement directions of the through holes are different.

Preferably, an axial rib plate or a radial rib plate is arranged in the heat storage rod.

As a preferable technical scheme of the invention, the heat storage rod is filled with heat storage materials.

Preferably, the heat storage material comprises a phase change material and/or a thermochemical material.

Preferably, the phase-changeable material comprises a hydrated salt and/or paraffin wax.

Preferably, the thermochemical material comprises lime and/or aluminium powder.

In the present invention, the heat storage material is not limited to the above materials, but may include other materials having a large energy storage density.

In another aspect, the present invention provides an operation method of the mobile energy storage system, where the operation method includes the following steps:

(1) Filling a heat storage rod into a heat storage heat exchange cavity of the heat storage unit; the gas at 300-1100 ℃ from the industrial system enters the heat storage and exchange cavity through the airflow cavity at the bottom end of the heat storage and exchange cavity of the heat storage unit, exchanges heat with the heat storage rod, and the gas after heat exchange is discharged through the airflow cavity at the top end of the heat storage and exchange cavity of the heat storage unit;

(2) Conveying the heat storage rod subjected to heat exchange in the step (1) into a storage cavity of a conveying unit through the conveying cavity of the heat storage unit, and then conveying the heat storage rod to a heat release unit through the conveying unit;

(3) The heat storage rod in the storage cavity of the conveying unit is conveyed into the heat release and exchange cavity of the heat release unit through the conveying cavity of the heat release unit; air at the temperature of-10-30 ℃ enters the heat release and exchange cavity through an airflow cavity at the bottom end of the heat release and exchange cavity of the heat release unit, and exchanges heat with the heat storage rod for one time; the temperature of the air after heat exchange is increased to 250-1050 ℃, then the air enters a second heat exchange cavity through an air flow cavity at the top end of the heat release heat exchange cavity of the heat release unit for secondary heat exchange, and the air after secondary heat exchange is discharged for subsequent utilization;

(4) The heat storage rod subjected to primary heat exchange in the step (3) is transported back to the storage cavity of the transportation unit through the transportation cavity of the heat release unit; and then the heat storage rod is conveyed back to the heat storage unit by the conveying unit to carry out the heat storage operation of the step (1), so that circulation is realized.

More specifically, the operating method further comprises the steps of:

the first stage: after each layer of heat storage rod in the heat storage unit and the high-temperature gas reach or approach to heat balance, the heat charging process of the heat storage rod is completed; and then carrying out a conveying process of the heat storage rod, wherein the conveying process comprises the following operations:

a) Closing the airflow cavity outlet baffle and the airflow cavity inlet baffle;

b) Opening an inlet baffle of the conveying cavity and an inlet baffle of the conveying unit, and simultaneously, moving down the inner baffle of the conveying unit; one end of an inlet baffle plate of the conveying unit extends into the lower edge of the inlet of the conveying cavity by adjusting the position of the heat conveying vehicle;

c) Starting an external transmission mechanism connected with the lower roller to enable the lower roller to rotate clockwise, and enabling the rotating lower roller to drive a chain matched with the upper roller and the lower roller and lifting teeth positioned on the chain to move clockwise;

d) The upper movable vertical plate for opening the outlet of the heat storage and exchange cavity is positioned in the heat storage and exchange cavity, and the heat storage rod which is not blocked by the movable vertical plate of the outlet of the heat storage and exchange cavity is subject to the action of gravity and rolls downwards along the declined track of each layer. Then sequentially rolling from the outlet of the heat storage and exchange cavity;

e) The rolling heat storage rods are further lifted and guided by the lower lifting plate, and the heat storage rods are sent into the arc-shaped grooves at the upper ends of the lifting teeth. Because each lifting tooth moves clockwise under the drive of the chain, the function of transporting each heat storage rod clockwise is achieved;

f) When the heat storage rods are transported to the inlet baffle plate of the conveying unit, under the lifting and downward tilting guiding actions of the inlet baffle plate of the conveying unit, each heat storage rod rolls into the heat transfer vehicle storage cavity, rolls downwards along each layer of track and sequentially fills the heat transfer vehicle storage cavity from bottom to top;

g) Closing the inlet baffle of the conveying cavity and the inlet baffle of the conveying unit after the step f) is completed.

Through the steps, the rapid filling and transportation of each heat storage rod in the conveying unit are realized.

And a second stage: after the heat transfer vehicle transports the heat storage rods filled with heat to the heat release unit, the heat storage rods filled with heat need to be transported into the heat release unit, and the operation steps are as follows:

a) Closing the outlet baffle of the heat release unit and the inlet baffle of the airflow cavity;

b) Opening a conveying cavity outlet baffle and a conveying unit outlet baffle, and enabling one end of the conveying unit outlet baffle to extend into the lower edge of the conveying cavity outlet by adjusting the position of the heat transfer vehicle;

c) Starting an external transmission mechanism connected with the lower roller to enable the lower roller to rotate clockwise, and enabling the rotating lower roller to drive a chain matched with the upper roller and the lower roller and lifting teeth positioned on the chain to move clockwise;

d) The baffle plate in the upward moving conveying unit is positioned in the storage cavity of the heat transfer vehicle, and the heat storage rod which is not blocked by the baffle plate in the conveying unit rolls downwards along the downward inclined track of each layer under the action of gravity. Then, sequentially rolling out from the outlet of the conveying unit;

e) The rolling heat storage rods are further lifted and guided by the baffle plates at the outlet of the conveying unit, and the heat storage rods are conveyed into the circular arc-shaped grooves at the upper ends of the lifting teeth. As each lifting tooth moves clockwise under the drive of the chain, the function of conveying each heat storage rod clockwise is achieved;

f) When the heat storage rods are transported to the inlet of the heat release and exchange cavity, under the lifting and downward tilting guiding actions of the lifting plate at the upper part, each heat storage rod rolls from the inlet of the heat release and exchange cavity to enter the heat release and exchange cavity, then rolls downwards along each layer of track, and fills the heat release and exchange cavity from bottom to top in sequence;

g) Closing the inlet baffle of the conveying cavity and the outlet baffle of the conveying unit after the step f) is completed.

Through the steps, the rapid filling of each heat storage rod in the heat release unit is realized.

And a third stage: when the heat storage bars of each layer in the heat release unit exchange heat with surrounding gas, after the heat release process is completed, the heat storage bars after heat release are conveyed back to the heat storage unit for heat storage again, and the operation steps are as follows:

a) Closing the outlet baffle of the heat release unit and the inlet baffle of the airflow cavity;

b) Opening an inlet baffle of the conveying cavity and an inlet baffle of the conveying unit, and simultaneously, moving down the inner baffle of the conveying unit; one end of an inlet baffle plate of the conveying unit extends into the lower edge of the inlet of the conveying cavity by adjusting the position of the heat conveying vehicle;

c) Starting an external transmission mechanism connected with the lower roller to enable the lower roller to rotate anticlockwise, and enabling the rotating lower roller to drive a chain matched with the upper roller and the lower roller and lifting teeth positioned on the chain to move anticlockwise;

d) The upper movable vertical plate for opening the outlet of the heat storage and exchange cavity is positioned in the heat storage and exchange cavity, and the heat storage rod which is not blocked by the movable vertical plate of the outlet of the heat storage and exchange cavity is subject to the action of gravity and rolls downwards along the declined track of each layer. Then, the heat is sequentially rolled out from the outlet of the heat storage and exchange cavity positioned at the lower part;

e) The rolling heat storage rods are further lifted and guided by the lower lifting plate, and the heat storage rods are sent into the arc-shaped grooves at the upper ends of the lifting teeth. Each lifting tooth moves anticlockwise under the drive of the chain, so that the effect of transporting each heat storage rod anticlockwise is achieved;

f) When the heat storage rods are transported to the inlet baffle plate of the conveying unit, under the lifting and downward tilting guiding actions of the inlet baffle plate of the heat transfer vehicle, each heat storage rod rolls from the inlet of the conveying unit to enter the heat transfer vehicle storage cavity, rolls downwards along each layer of track and fills the heat transfer vehicle storage cavity from bottom to top in sequence;

g) Closing the inlet baffle of the conveying cavity and the inlet baffle of the conveying unit after the step f) is completed.

Through the steps, the rapid filling and transportation of each heat storage rod in the heat transfer vehicle are realized.

Fourth stage: after the heat-transfer vehicle transports the heat-released heat storage rods to the heat storage unit, transporting the heat-released heat storage rods into the heat storage unit, wherein the heat-released heat storage rods comprise the following operations:

a) Closing the airflow cavity outlet baffle and the airflow cavity inlet baffle;

b) Opening a conveying cavity outlet baffle and a conveying unit outlet baffle, and enabling one end of the conveying unit outlet baffle to extend into the lower edge of the conveying cavity outlet by adjusting the position of the heat transfer vehicle;

c) Starting an external transmission mechanism connected with the lower roller to enable the lower roller to rotate anticlockwise, and enabling the rotating lower roller to drive a chain matched with the upper roller and the lower roller and lifting teeth positioned on the chain to move anticlockwise;

d) The baffle plate in the upward moving conveying unit is positioned in the storage cavity of the heat transfer vehicle, and the heat storage rod which is not blocked by the baffle plate in the conveying unit rolls downwards along the downward inclined track of each layer under the action of gravity. Then, sequentially rolling out from the outlet of the conveying unit;

e) The rolling heat storage rods are further lifted and guided by the baffle plates at the outlet of the conveying unit, and the heat storage rods are conveyed into the circular arc-shaped grooves at the upper ends of the lifting teeth. As each lifting tooth moves anticlockwise under the drive of the chain, the effect of transporting each heat storage rod anticlockwise is achieved;

f) When the heat storage rods are transported to the heat release and exchange cavity inlet, under the lifting and downward tilting guiding actions of the upper lifting plate, each heat storage rod rolls from the heat release and exchange cavity inlet to the heat release and exchange cavity, rolls downwards along each layer of track and fills the heat release and exchange cavity of the heat storage end from bottom to top in sequence;

g) After step f) is completed, the conveying cavity outlet baffle and the conveying unit outlet baffle are closed.

Through the steps, the rapid filling of each heat storage rod in the heat storage unit is realized.

And then the first stage to the fourth stage are circulated, so that long-distance continuous and rapid heat storage and heat release processes of all the heat storage rods are realized.

Compared with the prior art, the invention has the following beneficial effects:

(1) According to the mobile energy storage system, the heat storage rod is used as a heat storage element, and the waiting time of the conveying unit in the heat charging and releasing process is greatly reduced by flexibly loading and unloading the heat storage rod among the heat storage unit, the conveying unit and the heat releasing unit;

(2) According to the mobile energy storage system, cylindrical heat storage rods with rolling advantages and a rail which is obliquely arranged are adopted in the heat storage unit, the conveying unit and the heat release unit, and each heat storage rod freely falls down along the rail by means of the gravity effect, so that the heat storage rods are rapidly and orderly filled into the heat storage unit, the conveying unit and the heat release unit, and the heat storage and heat release efficiency of the mobile heat storage system is further improved;

(3) The comprehensive optimization energy storage system structure of the mobile energy storage system effectively improves the daily heat storage and release circulation efficiency of the mobile heat storage system, reduces the comprehensive operation cost and has good industrial application prospect.

Drawings

Fig. 1 is a schematic structural diagram of a heat storage unit in a mobile energy storage system according to embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of a conveying unit in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 3 is a schematic diagram of a heat release unit in a mobile energy storage system according to embodiment 1 of the present invention;

fig. 4 is a schematic structural diagram of a heat storage rod in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 5 is a radial cross-sectional view of the maximum diameter of a heat storage rod in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 6 is a radial cross-sectional view of the maximum diameter of a heat storage rod in the mobile energy storage system provided in embodiment 2 of the present invention;

FIG. 7 is a radial cross-sectional view of the maximum diameter of the heat storage rod in the mobile energy storage system according to embodiment 3 of the present invention;

FIG. 8 is a schematic diagram illustrating an arrangement of a plurality of heat storage rods in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 9 is a schematic side view of the arrangement of heat storage bars and rails in the mobile energy storage system according to embodiment 1 of the present invention;

Fig. 10 is a schematic top view of a heat storage rod and track arrangement in the mobile energy storage system according to embodiment 1 of the present invention;

fig. 11 is a schematic perspective view of a heat storage rod conveying device in the mobile energy storage system according to embodiment 1 of the present invention;

fig. 12 is a schematic flow chart of unloading a heat storage rod from a heat storage unit in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 13 is a schematic flow chart of the heat release unit loading heat storage rod in the mobile energy storage system according to embodiment 1 of the present invention;

FIG. 14 is a schematic flow chart of unloading a heat storage rod from a heat release unit in a mobile energy storage system according to embodiment 1 of the present invention;

fig. 15 is a schematic flow chart of loading a heat storage rod in a heat storage unit in the mobile energy storage system according to embodiment 1 of the present invention.

Wherein 1-heat storage unit, 2-delivery unit, 3-heat release unit, 4-heat storage rod, 5.1-heat storage heat exchange cavity, 5.2-heat release heat exchange cavity, 6-delivery cavity, 7-outlet air flow cavity, 8-inlet air flow cavity, 9-heat transfer car, 10-storage cavity, 11-second heat exchange cavity, 12-air flow cavity outlet baffle, 13.1-heat storage gas outlet pipe, 13.2-heat release gas outlet pipe, 14-air flow cavity inlet baffle, 15-gas inlet pipe, 16-heat preservation layer, 17.1-heat storage heat exchange cavity inlet, 17.2-heat release heat exchange cavity inlet, 18-upper lifting plate, 19-track, 20.1-heat storage heat exchange cavity outlet, 20.2-heat release heat exchange cavity outlet, 21-heat exchange cavity outlet moving riser, 22-lower lifting plate, 23-heat storage rod conveying device, 24-upper roller, 25-lower roller, 26-chain, 27-lifting tooth, 28-conveying cavity inlet, 29-conveying cavity inlet baffle, 30-conveying cavity outlet, 31-conveying cavity outlet baffle, 32-conveying unit inlet, 33-conveying unit inlet baffle, 34-conveying unit outlet, 35-conveying unit outlet baffle, 36-conveying unit inner baffle, 37-partition plate, 38-U-shaped pipe, 39-heat release unit gas outlet, 40-heat release unit outlet baffle, 41-rolling end, 42-necking section, 43-annular groove, 44-axial rib plate, 45-radial rib plate, 46-heat storage material.

Detailed Description

For better illustrating the present invention, the technical scheme of the present invention is convenient to understand, and the present invention is further described in detail below. The following examples are merely illustrative of the present invention and are not intended to represent or limit the scope of the invention as defined in the claims.

The following are exemplary but non-limiting examples of the invention:

example 1:

the embodiment provides a long-distance movable energy storage system of a heat storage rod and an operation method thereof, wherein the movable energy storage system comprises a heat storage unit 1, a conveying unit 2, a heat release unit 3 and a heat storage rod 4;

the heat storage unit 1 comprises a heat storage heat exchange cavity 5.1 and a conveying cavity 6 arranged on one side of the heat storage heat exchange cavity 5.1 in parallel; the top end and the bottom end of the heat storage and exchange cavity 5.1 are also independently provided with airflow cavities; a schematic structural diagram of the heat storage unit 1 is shown in fig. 1;

the conveying unit 2 comprises a heat transfer vehicle 9 and a storage cavity 10 arranged on the heat transfer vehicle 9; a schematic structural view of the conveying unit 2 is shown in fig. 2;

the heat release unit 3 comprises a heat release heat exchange cavity 5.2 and a conveying cavity 6 arranged on one side of the heat release heat exchange cavity 5.2 in parallel; a second heat exchange cavity 11 is arranged on the other side of the heat release heat exchange cavity 5.2 in parallel; the top end and the bottom end of the heat release and exchange cavity 5.2 are also independently provided with airflow cavities; a schematic structural view of the heat release unit 3 is shown in fig. 3;

A schematic structural diagram of the heat storage rod 4 is shown in fig. 4; and the radial cross-section of the maximum diameter of the heat storage rod 4 is shown in fig. 5;

the heat storage and exchange cavity 5.1, the heat release and exchange cavity 5.2 and the storage cavity 10 are all used for storing the heat storage rod 4;

the transport unit 2 is moved between the heat storage unit 1 and the heat release unit 3 for transporting the heat storage rods 4 and interfaces with the transport chamber 6.

The airflow chambers at the top ends of the heat storage heat exchange chamber 5.1 and the heat release heat exchange chamber 5.2 are outlet airflow chambers 7, and the airflow chamber at the bottom end is inlet airflow chamber 8; the outlet airflow cavity 7 of the heat storage unit 1 comprises an airflow cavity outlet baffle 12 arranged in the air outlet, and a heat storage air outlet pipe 13.1 penetrating through the bottom of the outlet airflow cavity 7 and the top of the heat storage heat exchange cavity 5.1; the outlet gas flow chamber 7 of the heat release unit 3 comprises a heat release gas outlet pipe 13.2 penetrating through the bottom of the outlet gas flow chamber 7 and the top of the heat release heat exchange chamber 5.2; the number of the heat storage gas outlet pipes 13.1 and the heat release gas outlet pipes 13.2 is 6 respectively and are uniformly arranged;

the inlet airflow cavity 8 comprises an airflow cavity inlet baffle 14 arranged in the gas inlet, and a gas inlet pipe 15 penetrating through the top of the inlet airflow cavity 8 and the bottom of the heat storage heat exchange cavity 5.1 or the heat release heat exchange cavity 5.2; the number of the gas inlet pipes 15 is 6, and the gas inlet pipes are uniformly arranged; the length of the gas inlet pipe 15 gradually becomes longer along the direction of entering the gas in the inlet gas flow cavity 8; the inner wall of the inlet airflow cavity 8 is provided with a heat insulation layer 16.

The top end of the side wall of the heat storage and exchange cavity 5.1 is provided with a heat storage and exchange cavity inlet 17.1 penetrating through the conveying cavity 6; the top end of the side wall of the heat release and exchange cavity 5.2 is provided with a heat release and exchange cavity inlet 17.2 which penetrates through the conveying cavity 6; the lower edge of the heat storage and exchange cavity inlet 17 is respectively provided with an upper lifting plate 18; the upper lifting plate 18 is inclined downwards towards the direction of the heat storage heat exchange cavity 5.1 or the heat release heat exchange cavity 5.2, and the inclination angle is 6 degrees;

the inside of the heat storage heat exchange cavity 5.1 and the heat release heat exchange cavity 5.2 and two side walls adjacent to the side walls provided with the heat storage heat exchange cavity inlet 17.1 and the heat release heat exchange cavity inlet 17.2 are respectively symmetrically provided with a track 19 with a strip-shaped flat plate structure, and the track 19 which is symmetrically arranged is provided as 1 group; 8 groups of tracks 19 are arranged along the height direction of the heat storage and exchange cavity 5; each group of rails 19 is inclined downwards, the downward inclination directions are consistent, and the inclination angles are all 6 degrees; two adjacent groups of rails 19 are arranged in a staggered way to form a serpentine channel for the heat storage rod 4 to pass through; the track 19 is used for placing the heat storage rods 4, and an arrangement schematic diagram of the plurality of heat storage rods 4 is shown in fig. 8; a schematic side view structure of the heat storage rod 4 and the rail 19 is shown in fig. 9, and a schematic top view structure is shown in fig. 10;

The bottom end of the side wall of the heat storage and exchange cavity 5.1 is provided with a heat storage and exchange cavity outlet 20.1 which penetrates through the conveying cavity 6; the bottom end of the side wall of the heat release and exchange cavity 5.2 is provided with a heat release and exchange cavity outlet 20.2 which penetrates through the conveying cavity 6; the upper edges of the heat storage heat exchange cavity outlet 20.1 and the heat release heat exchange cavity outlet 20.2 are respectively provided with a heat exchange cavity outlet movable vertical plate 21; the lower edges of the heat storage heat exchange cavity outlet 20.1 and the heat release heat exchange cavity outlet 20.2 are respectively provided with a lower lifting plate 22; the lower lifting plate 22 is inclined downwards towards the direction of the conveying cavity 6, and the inclination angle is 6 degrees; the inner walls of the heat storage heat exchange cavity 5.1 and the heat release heat exchange cavity 5.2 are provided with heat preservation layers 16.

A heat storage rod conveying device 23 is arranged in the conveying cavity 6; a schematic perspective view of the heat storage rod conveying device 23 is shown in fig. 11; the heat storage rod conveying device 23 comprises an upper roller 24 and a lower roller 25, a chain 26 respectively sleeved between two ends of the upper roller 24 and the lower roller 25, and lifting teeth 27 arranged on the chain 26; the end surfaces of the upper and lower ends of the lifting teeth 27 are arc-shaped, the sections of the left and right ends are in different sizes of sectors, and one end of the sector with a small size is connected with the chain 26;

The middle upper part of the side wall of the conveying cavity 6 is provided with a conveying cavity inlet 28; a conveying cavity inlet baffle 29 is arranged at the conveying cavity inlet 28; a conveying cavity outlet 30 is arranged at the lower part of the side wall of the conveying cavity 6; a conveying cavity outlet baffle 31 is arranged at the conveying cavity outlet 30; the inner wall of the conveying cavity 6 is provided with an insulating layer 16.

The movable equipment comprises a heat transfer car 9; a conveying unit inlet 32 is formed in the top end of the side wall of the tail part of the storage cavity 10; a conveying unit inlet baffle 33 is arranged at the conveying unit inlet 32; the bottom end of the side wall at the tail part of the storage cavity 10 is provided with a conveying unit outlet 34; a conveying unit outlet baffle 35 is arranged at the conveying unit outlet 34; an insulating layer 16 is arranged on the inner wall of the storage cavity 10;

a conveying unit inner baffle 36 is arranged between the inner wall of the storage cavity 10 at the upper part of the conveying unit outlet 34 and the heat preservation layer 16; the rails 19 of the strip-shaped flat plate structure are symmetrically arranged on two side walls adjacent to the side wall provided with the conveying unit inlet 32 in the storage cavity 10, and the symmetrically arranged rails 19 are defined as 1 group; 6 groups of tracks 19 are arranged along the height direction of the storage cavity 10; each group of rails 19 is inclined downwards, the downward inclination direction is consistent, and the inclination angle is 6 degrees; the adjacent two groups of rails 19 are staggered to form a serpentine channel for the heat storage rod 4 to pass through.

The inner walls of the outlet airflow chamber 7 and the second heat exchange chamber 11 of the heat release unit 3 are both provided with heat insulation layers 16. A partition plate 37 is arranged in the second heat exchange cavity 11; the partition plate 37 is a vertical partition plate arranged in the middle of the top end of the second heat exchange cavity 11, and divides the interior of the second heat exchange cavity 11 into a U-shaped cavity; a U-shaped pipe 38 penetrating through the top end of the second heat exchange cavity 11 is arranged in the U-shaped cavity;

the top end of the side wall of the second heat exchange cavity 11, which is close to one side of the heat release heat exchange cavity 5.2, is communicated with the outlet airflow cavity 7; a heat release unit gas outlet 39 is arranged at the top end of the side wall of the second heat exchange cavity 11, which is far away from the side of the heat release heat exchange cavity 5.2; a cartridge outlet baffle 40 is disposed adjacent the cartridge gas outlet 39.

The heat storage rod 4 comprises rolling ends 41 symmetrically arranged at two ends and necking sections 42 connected with the rolling ends 41; the diameter of the rolling end 41 is 0.5 times of the maximum diameter of the heat storage rod 4; the axial length of the rolling end 41 is equal to the width of the track 19; an annular groove 43 is arranged between the necking sections 42 at the two ends of the heat storage rod 4; the width and depth of two adjacent annular grooves 43 are not equal; the heat storage material 46 filled in the heat storage rod 4 is paraffin.

The running method of the mobile energy storage mobile comprises the following steps:

(1) The heat storage rod 4 is filled in the heat storage and exchange cavity 5.1 of the heat storage unit 1; the 1100 ℃ gas from the industrial system enters the heat storage and exchange cavity 5.1 through the inlet airflow cavity 8 of the heat storage unit 1, exchanges heat with the heat storage rod 4, and the heat-exchanged gas is discharged through the outlet airflow cavity 7 of the heat storage unit 1;

(2) Conveying the heat storage rod 4 subjected to heat exchange in the step (1) into a storage cavity 10 of a heat conveying vehicle 9 through a conveying cavity 6 of the heat storage unit 1, wherein the unloading process of the heat storage rod 4 in the heat storage unit 1 is shown in fig. 12; and then transported to the heat release unit 3 by the heat transport vehicle 9;

(3) The heat storage rods 4 in the storage chamber 10 are transported into the heat release and exchange chamber 5.2 of the heat release unit 3 via the transport chamber 6 of the heat release unit 3, wherein the process of loading the heat storage rods 4 into the heat release unit 3 is shown in fig. 13;

air at 10 ℃ enters the heat release and exchange cavity 5.2 through the inlet airflow cavity 8 of the heat release unit 3, and exchanges heat with the heat storage rod 4 for one time; the temperature of the air after heat exchange is increased to 380 ℃, then the air enters into the second heat exchange cavity 11 through the outlet airflow cavity 7 of the heat release unit 3 to carry out secondary heat exchange with cold water in the U-shaped pipe 38, and the air after secondary heat exchange is discharged through the gas outlet 39 of the heat release unit;

(4) The heat storage rod 4 subjected to primary heat exchange in the step (3) is transported back to the storage cavity 10 of the heat transfer car 9 through the transport cavity 6 of the heat release unit 3, wherein the unloading process of the heat storage rod 4 in the heat release unit 3 is shown in fig. 14; then, the heat storage rod 4 is transported back to the heat storage unit 1 by the heat transfer vehicle 9 to perform the heat storage operation of step (1), and a cycle is realized, wherein the process of loading the heat storage rod 4 to the heat storage unit 1 is as shown in fig. 15.

Example 2:

the embodiment provides a long-distance mobile energy storage system for a heat storage rod and an operation method thereof, wherein the mobile energy storage system refers to the mobile energy storage system in embodiment 1, and the difference is that:

(1) the upper and lower lifting plates 18, 22 of the heat storage unit 1 and the heat release unit 3 are all inclined at 2 °, and the inclination angles of all rails 19 are also 2 °;

(2) the diameter of the rolling end 41 is 0.8 times of the maximum diameter of the heat storage rod 4;

(3) the inside of the heat storage rod 4 is provided with an axial rib plate 44, and the radial section of the maximum diameter of the heat storage rod 4 is shown in fig. 6.

The operation method is referred to the operation method in embodiment 1, except that: the temperature of the industrial gas in the step (1) is 600 ℃; in the step (3), air with the temperature of 30 ℃ is adopted for primary heat exchange, and the temperature of the air after primary heat exchange reaches 300 ℃.

Example 3:

the embodiment provides a long-distance mobile energy storage system for a heat storage rod and an operation method thereof, wherein the mobile energy storage system refers to the mobile energy storage system in embodiment 1, and the difference is that:

(1) the upper and lower lifting plates 18, 22 of the heat storage unit 1 and the heat release unit 3 are all inclined at 8 °, and the inclination angles of all rails 19 are also 8 °;

(2) the diameter of the rolling end 41 is 0.6 times of the maximum diameter of the heat storage rod 4;

(3) the inside of the heat storage rod 4 is provided with radial rib plates 45, and the radial section of the maximum diameter of the heat storage rod 4 is shown in fig. 7.

The operation method is referred to the operation method in embodiment 1, except that: the temperature of the industrial gas in the step (1) is 800 ℃; in the step (3), air with the temperature of minus 10 ℃ is adopted for primary heat exchange, and the temperature of the air after primary heat exchange reaches 380 ℃.

Example 4:

the embodiment provides a long-distance mobile energy storage system for a heat storage rod and an operation method thereof, wherein the mobile energy storage system is different from the mobile energy storage system in embodiment 1 only in that: annular grooves 43 are not formed between the necking sections 42 at the two ends of the heat storage rod 4.

The operation method is referred to the operation method in embodiment 1, except that: the temperature of the air after primary heat exchange in the step (3) is increased to 100 ℃.

The heat storage rod in this embodiment is not provided with an annular groove, resulting in lower heat exchange efficiency.

Example 5:

the embodiment provides a long-distance mobile energy storage system for a heat storage rod and an operation method thereof, wherein the mobile energy storage system is different from the mobile energy storage system in embodiment 1 only in that: the annular grooves 43 between the necking sections 42 at the two ends of the heat storage rod 4 are uniformly distributed, and all the annular grooves 43 have the same width and the same depth.

The operation method is referred to the operation method in embodiment 1, except that: the temperature of the air after primary heat exchange in the step (3) is increased to 200 ℃.

The uniform arrangement of the annular grooves in this embodiment results in lower heat exchange efficiency.

As can be seen from the above embodiments, the mobile energy storage system of the present invention adopts the heat storage rod as the heat storage element, and greatly reduces the waiting time of the conveying unit in the process of charging and releasing heat by flexibly loading and unloading the heat storage unit, the conveying unit and the heat release unit; the movable energy storage system adopts cylindrical heat storage rods with rolling advantages and a rail which is obliquely arranged, and each heat storage rod freely falls down along the rail by virtue of the gravity effect, so that the heat storage rods are rapidly and orderly filled into the heat storage unit, the conveying unit and the heat release unit, and the heat storage and release efficiency of the movable heat storage system is further improved; the mobile energy storage system comprehensively optimizes the energy storage system structure, effectively improves the daily heat storage and release circulation efficiency of the mobile heat storage system, reduces the comprehensive operation cost and has good industrial application prospect.

The applicant states that the present invention is illustrated by the above examples as a system and detailed method of the invention, but the present invention is not limited to, i.e., does not mean that the present invention must rely on the above system and detailed method to practice. It should be apparent to those skilled in the art that any modifications, equivalent substitutions for operation of the present invention, addition of auxiliary operations, selection of specific modes, etc., are intended to fall within the scope of the present invention and the scope of the disclosure.

Claims (65)

1. The long-distance movable energy storage system for the heat storage rod is characterized by comprising a heat storage unit, a conveying unit, a heat release unit and the heat storage rod;

the heat storage unit comprises a heat storage and exchange cavity;

the conveying unit comprises a movable device and a storage cavity arranged on the movable device;

the heat release unit comprises a heat release heat exchange cavity;

one side of the heat storage heat exchange cavity and one side of the heat release heat exchange cavity are respectively and independently provided with a conveying cavity in parallel; a second heat exchange cavity is arranged on the other side of the heat release heat exchange cavity in the heat release unit in parallel;

the top end and the bottom end of the heat storage heat exchange cavity and the bottom end of the heat release heat exchange cavity are also respectively and independently provided with an airflow cavity;

The heat storage and exchange cavity, the heat release and exchange cavity and the storage cavity are all used for storing the heat storage rod;

the conveying unit moves between the heat storage unit and the heat release unit for conveying the heat storage rod and is in butt joint with the conveying cavity;

the moving path of the heat storage rod comprises: after the heat storage rod stores the heat in the heat storage heat exchange cavity, the heat storage rod is conveyed into the storage cavity through the conveying cavity in the heat storage unit, and then conveyed into the heat release heat exchange cavity through the conveying cavity in the heat release unit.

2. The mobile energy storage system of claim 1, wherein the airflow chambers at the top ends of the heat storage and heat exchange chambers are respectively outlet airflow chambers, and the airflow chambers at the bottom ends are respectively inlet airflow chambers.

3. The mobile energy storage system of claim 1, wherein the outlet airflow chamber of the heat storage unit comprises an airflow chamber outlet baffle disposed inside the gas outlet and a first gas outlet tube extending through the bottom of the outlet airflow chamber and the top of the heat storage heat exchange chamber;

the number of the first gas outlet pipes is not less than 2, and the first gas outlet pipes are uniformly arranged.

4. The mobile energy storage system of claim 1, wherein the outlet gas flow chamber of the heat release unit includes a second gas outlet tube extending through a bottom of the outlet gas flow chamber and a top of the heat release heat exchange chamber;

The number of the second gas outlet pipes is not less than 2, and the second gas outlet pipes are uniformly arranged.

5. The mobile energy storage system of claim 2, wherein the inlet gas flow chamber comprises a gas flow chamber inlet baffle disposed inside the gas inlet and a gas inlet tube extending through a top of the inlet gas flow chamber and a bottom of the heat storage or heat release heat exchange chamber.

6. The mobile energy storage system of claim 5, wherein the number of gas inlet pipes is not less than 2 and is uniformly arranged.

7. The mobile energy storage system of claim 2, wherein the length of the gas inlet tube is gradually longer in the direction of gas entry within the inlet gas flow chamber.

8. The mobile energy storage system of claim 2, wherein an inner wall of the inlet airflow chamber is provided with a thermal insulation layer.

9. The mobile energy storage system of claim 1, wherein a heat storage and exchange cavity inlet penetrating through the conveying cavity is formed in the top end of the side wall of the heat storage and exchange cavity;

and the top end of the side wall of the heat release and exchange cavity is provided with a heat release and exchange cavity inlet which penetrates through the conveying cavity.

10. The mobile energy storage system of claim 9, wherein the lower edges of the heat storage and exchange chamber inlet and the heat release and exchange chamber inlet are each independently provided with an upper lift plate.

11. The mobile energy storage system of claim 10, wherein the upper lift plate is inclined downwardly in a direction of the heat storage or release heat exchange chamber at an angle of 2-8 °.

12. The mobile energy storage system of claim 1, wherein the interior of the heat storage and release heat exchange chambers are symmetrically disposed with rails on two sidewalls adjacent to the sidewall where the heat storage and release heat exchange chamber inlet is disposed, and wherein the symmetrically disposed rails are defined as 1 set.

13. The mobile energy storage system of claim 12, wherein the rail is an elongated flat plate structure.

14. The mobile energy storage system of claim 12, wherein the rail is configured to house a heat storage rod.

15. The mobile energy storage system of claim 12, wherein at least 2 sets of rails are independently disposed along the height of the heat storage and release heat exchange chambers, respectively.

16. The mobile energy storage system of claim 15, wherein each set of rails is inclined downward with a uniform downward inclination, but is inclined at an angle of 2-8 ° independently.

17. The mobile energy storage system of claim 15, wherein adjacent sets of rails are staggered to form serpentine channels for the passage of the heat storage rods.

18. The mobile energy storage system of claim 1, wherein a bottom end of a side wall of the heat storage and exchange cavity is provided with a heat storage and exchange cavity outlet penetrating through the conveying cavity;

and the bottom end of the side wall of the heat release and exchange cavity is provided with a heat release and exchange cavity outlet which penetrates through the conveying cavity.

19. The mobile energy storage system of claim 18, wherein the upper edges of the heat storage and release heat exchange chamber outlets are each independently provided with a heat exchange chamber outlet moving riser.

20. The mobile energy storage system of claim 18, wherein the lower edges of the heat storage and exchange chamber outlet and the heat release and exchange chamber outlet are each independently provided with a lower lift plate.

21. The mobile energy storage system of claim 20, wherein the lower lift plate is inclined downwardly in the direction of the transport chamber at an angle of 2-8 °.

22. The mobile energy storage system of claim 1, wherein the inner walls of the heat storage and exchange chambers and the heat release and exchange chamber are each independently provided with an insulating layer.

23. The mobile energy storage system of claim 1, wherein a heat storage rod transfer device is disposed within the delivery cavity.

24. The mobile energy storage system of claim 23, wherein the heat storage bar transfer device comprises an upper roller, a lower roller, a chain respectively sleeved between two ends of the upper roller and the lower roller, and lifting teeth arranged on the chain.

25. The mobile energy storage system of claim 24, wherein the end surfaces of the upper and lower ends of the lifting teeth are arc-shaped, the cross sections of the left and right ends are different sizes of sectors, and one end of the small size sector is connected with the chain.

26. The mobile energy storage system of claim 1, wherein a transport cavity inlet is provided in an upper middle portion of a side wall of the transport cavity for interfacing with the transport unit.

27. The mobile energy storage system of claim 1, wherein a transfer chamber inlet baffle is provided at the transfer chamber inlet.

28. The mobile energy storage system of claim 1, wherein a lower portion of a sidewall of the transport cavity is provided with a transport cavity outlet for interfacing with the transport unit.

29. The mobile energy storage system of claim 1, wherein a transport cavity outlet baffle is provided at the transport cavity outlet.

30. The mobile energy storage system of claim 1, wherein an inner wall of the transport cavity is provided with a thermal insulation layer.

31. The mobile energy storage system of claim 1, wherein the mobile device comprises a heat transfer vehicle.

32. The mobile energy storage system of claim 1, wherein a top end of a side wall of the storage chamber tail is provided with a delivery unit inlet.

33. The mobile energy storage system of claim 32, wherein a delivery unit inlet baffle is provided at the delivery unit inlet.

34. The mobile energy storage system of claim 1, wherein a bottom end of a side wall of the storage chamber tail is provided with a delivery unit outlet.

35. The mobile energy storage system of claim 34, wherein a delivery unit outlet baffle is provided at the delivery unit outlet.

36. The mobile energy storage system of claim 1, wherein an inner wall of the storage cavity is provided with a thermal insulation layer.

37. The mobile energy storage system of claim 36, wherein a baffle within the delivery unit is disposed between the inner wall of the storage chamber above the delivery unit outlet and the insulating layer.

38. The mobile energy storage system of claim 1, wherein the storage chamber has symmetrically disposed tracks on both sidewalls adjacent to the sidewall where the inlet of the delivery unit is disposed, and wherein the symmetrically disposed tracks are defined as 1 group.

39. The mobile energy storage system of claim 38, wherein said rail is an elongated flat plate structure.

40. The mobile energy storage system of claim 38, wherein the rail is configured to house a heat storage rod.

41. The mobile energy storage system of claim 1, wherein at least 2 sets of rails are disposed along a height of the storage cavity.

42. The mobile energy storage system of claim 41, wherein each set of rails is inclined downward with a uniform downward inclination, but is inclined independently at an angle of 2-8 °.

43. The mobile energy storage system of claim 41, wherein adjacent sets of rails are staggered to form serpentine channels for the passage of the heat storage rods.

44. The mobile energy storage system of claim 1, wherein an inner wall of the outlet airflow chamber of the heat release unit is provided with a thermal insulation layer.

45. The mobile energy storage system of claim 1, wherein a divider plate is disposed within the second heat exchange chamber.

46. The mobile energy storage system of claim 45, wherein the divider plate, when a vertical divider plate is disposed in the middle of the top end of the second heat exchange chamber, divides the interior of the second heat exchange chamber into a U-shaped chamber.

47. The mobile energy storage system of claim 46, wherein a U-shaped tube is disposed within the U-shaped chamber and extends through a top end of the second heat exchange chamber.

48. The mobile energy storage system of claim 45, wherein the divider plate divides the interior of the second heat exchange chamber into serpentine chambers when the divider plate is a horizontal divider plate disposed on the side wall of the second heat exchange chamber in a horizontal direction in a staggered manner.

49. The mobile energy storage system of claim 48, wherein a serpentine tube is disposed within the serpentine chamber and adapted to accommodate the horizontal separator, both ends of the serpentine tube extending through the top end of the second heat exchange chamber.

50. The mobile energy storage system of claim 1, wherein a top end of a side wall of the second heat exchange chamber adjacent to a side of the heat release heat exchange chamber is in communication with an outlet airflow chamber.

51. The mobile energy storage system of claim 1, wherein a top end of a side wall of the second heat exchange chamber remote from the side of the heat release heat exchange chamber is provided with a heat release unit gas outlet.

52. The mobile energy storage system of claim 1, wherein a heat release unit outlet baffle is disposed proximate the heat release unit gas outlet.

53. The mobile energy storage system of claim 1, wherein the second heat exchange chamber inner wall is provided with a thermal insulation layer.

54. The mobile energy storage system of claim 1, wherein the heat storage rod comprises rolling ends symmetrically disposed at both ends and a neck section connected to the rolling ends.

55. The mobile energy storage system of claim 54, wherein the rolling end has a diameter of 0.5 to 0.8 times the maximum diameter of the heat storage rod.

56. The mobile energy storage system of claim 54, wherein the axial length of the rolling end is equal to the width of the rail.

57. The mobile energy storage system of claim 1, wherein an annular groove or through hole is provided between the neck sections at both ends of the heat storage rod.

58. The mobile energy storage system of claim 57, wherein the number of annular grooves is not less than 8.

59. The mobile energy storage system of claim 57, wherein the widths and depths of adjacent two of the annular grooves are not equal.

60. The mobile energy storage system of claim 1, wherein the interior of the heat storage bar is provided with axial or radial webs.

61. The mobile energy storage system of claim 1, wherein the heat storage rod is filled with a heat storage material.

62. The mobile energy storage system of claim 61, wherein the heat storage material comprises a phase change material and/or a thermochemical material.

63. The mobile energy storage system of claim 62, wherein the phase change material comprises a hydrated salt and/or paraffin wax.

64. The mobile energy storage system of claim 62, wherein the thermochemical material comprises lime and/or aluminum powder.

65. A method of operating a mobile energy storage system as claimed in any one of claims 1 to 64, said method of operation comprising the steps of:

(1) Filling a heat storage rod into a heat storage heat exchange cavity of the heat storage unit; the gas at 300-1100 ℃ from the industrial system enters the heat storage and exchange cavity through the airflow cavity at the bottom end of the heat storage and exchange cavity of the heat storage unit, exchanges heat with the heat storage rod, and the gas after heat exchange is discharged through the airflow cavity at the top end of the heat storage and exchange cavity of the heat storage unit;

(2) Conveying the heat storage rod subjected to heat exchange in the step (1) into a storage cavity of a conveying unit through the conveying cavity of the heat storage unit, and then conveying the heat storage rod to a heat release unit through the conveying unit;

(3) The heat storage rod in the storage cavity of the conveying unit is conveyed into the heat release and exchange cavity of the heat release unit through the conveying cavity of the heat release unit; air at the temperature of-10-30 ℃ enters the heat release and exchange cavity through an airflow cavity at the bottom end of the heat release and exchange cavity of the heat release unit, and exchanges heat with the heat storage rod for one time; the temperature of the air after heat exchange is increased to 250-1050 ℃, then the air enters a second heat exchange cavity through an air flow cavity at the top end of the heat release heat exchange cavity of the heat release unit for secondary heat exchange, and the air after secondary heat exchange is discharged for subsequent utilization;

(4) The heat storage rod subjected to primary heat exchange in the step (3) is transported back to the storage cavity of the transportation unit through the transportation cavity of the heat release unit; and then the heat storage rod is conveyed back to the heat storage unit by the conveying unit to carry out the heat storage operation of the step (1), so that circulation is realized.