CN109269106B - Heat-conducting medium heater and method thereof - Google Patents
Heat-conducting medium heater and method thereof Download PDFInfo
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- CN109269106B CN109269106B CN201811002651.9A CN201811002651A CN109269106B CN 109269106 B CN109269106 B CN 109269106B CN 201811002651 A CN201811002651 A CN 201811002651A CN 109269106 B CN109269106 B CN 109269106B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/025—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using fluid fuel
- F24H7/0266—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid using fluid fuel the transfer fluid being water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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Abstract
The invention discloses a heat-conducting medium heater, which comprises a fixedly installed furnace body stator, wherein the furnace body stator comprises a horizontal circular chassis, and a cylindrical outer wall body, a cylindrical middle wall body and a cylindrical inner wall body are integrally and coaxially arranged from outside to inside on the upper side of the circular chassis; a combustion-supporting air pressure-accumulating heat-accumulating annular cavity is formed between the cylindrical outer wall body and the cylindrical middle wall body; a combustion heating annular cavity is formed between the cylindrical middle wall body and the cylindrical inner wall body; a gas pressure-accumulating and heat-storing cavity is arranged inside the cylindrical inner wall body; the invention has simple structure, the heat-conducting medium is heated uniformly, the combustion-supporting air and the fuel gas entering the combustion heating ring cavity are rapidly mixed and melted under the action of the circulation in the combustion heating ring cavity, and meanwhile, the electronic ignition device is started, the combustion heating ring cavity is rapidly and uniformly combusted, and each vertical heat exchange tube on the heat-conducting medium heat exchange tube bundle component is uniformly heated, thereby heating the heat-conducting medium in the heat-conducting medium heat exchange tube bundle component.
Description
Technical Field
The invention belongs to the field of heating of heat-conducting media, and particularly relates to a heat-conducting medium heater and a method thereof.
Background
In the field of industrial boilers, heat conduction oil is often used as a heat conduction medium for heating, and heat energy is transmitted to heat utilization equipment through the heat conduction oil; the existing heat-conducting medium heating equipment often has a series of problems of uneven heating of the heat-conducting medium, low heat utilization rate and the like.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a heat-conducting medium heater with a heat-conducting medium heated uniformly and a method thereof.
The technical scheme is as follows: in order to achieve the purpose, the heat-conducting medium heater comprises a fixedly installed furnace body stator, wherein the furnace body stator comprises a horizontal circular chassis, and a cylindrical outer wall body, a cylindrical middle wall body and a cylindrical inner wall body are integrally and coaxially arranged from outside to inside on the upper side of the circular chassis; a combustion-supporting air pressure-accumulating heat-accumulating annular cavity is formed between the cylindrical outer wall body and the cylindrical middle wall body; a combustion heating annular cavity is formed between the cylindrical middle wall body and the cylindrical inner wall body; a gas pressure-accumulating and heat-storing cavity is arranged inside the cylindrical inner wall body;
the device also comprises a fuel gas supply pipe, a combustion air supply pipe, a smoke exhaust pipe and a heat-conducting medium heat exchange pipe bundle assembly; the gas outlet end of the gas supply pipe extends into the bottom of the gas pressure-accumulating heat-accumulating cavity, and the gas outlet end of the combustion-supporting air supply pipe extends into the bottom of the combustion-supporting air pressure-accumulating heat-accumulating annular cavity; the smoke inlet end of the smoke exhaust pipe extends into the bottom of the combustion heating ring cavity; the heat-conducting medium heat exchange tube bundle assembly is coaxial with the combustion heating ring cavity;
the heat-conducting medium heat exchange tube bundle assembly is characterized by also comprising a cold medium lead-in tube and a heat medium lead-out tube, wherein the cold medium lead-in tube is communicated and connected with the liquid inlet end of the heat-conducting medium heat exchange tube bundle assembly, and the heat medium lead-out tube is communicated and connected with the liquid outlet end of the heat-conducting medium heat exchange tube bundle assembly; the cold medium leading-in pipe is also provided with a liquid pump, and an electronic ignition device is arranged in the combustion heating ring cavity.
Furthermore, the heat-conducting medium heat exchange tube bundle assembly comprises a plurality of vertical heat exchange tubes which are circumferentially arranged along the axis of the combustion heating ring cavity, and the plurality of vertical heat exchange tubes which are circumferentially distributed in an array are communicated end to end through a plurality of transition tubes.
Furthermore, the upper end of the combustion-supporting air pressure-accumulating heat-accumulating ring cavity is integrally and hermetically provided with a top ring.
The gas distribution rotor comprises a horizontal rotor disc, a rotor motor is arranged above the rotor disc, and the rotor motor is in driving connection with the rotor disc through a transmission shaft;
a first cylindrical gas distribution wall body and a second cylindrical gas distribution wall body are integrally and coaxially arranged from outside to inside on the lower side of the rotor disc; the first cylindrical gas distribution wall body and the second cylindrical gas distribution wall body are coaxially arranged in the combustion heating annular cavity, the cylindrical outer wall of the first cylindrical gas distribution wall body is in sliding fit with the cylindrical inner wall of the cylindrical middle wall body, and the cylindrical inner wall of the second cylindrical gas distribution wall body is in sliding fit with the cylindrical outer wall of the cylindrical inner wall body;
the cylindrical middle wall body is provided with a plurality of longitudinal air inlet holes in a hollow manner, and the plurality of longitudinal air inlet holes are distributed in a circumferential array manner; a plurality of longitudinal air distribution holes are arranged on the first cylindrical air distribution wall body in a hollow manner and are distributed in a circumferential array; the first cylindrical air distribution wall body can rotate to each column of air distribution holes to be respectively communicated with each column of air inlet holes in an aligned manner;
a plurality of longitudinal gas inlet holes are hollowed in the cylindrical inner wall body and distributed in a circumferential array; a plurality of longitudinal gas distribution holes are arranged on the second cylindrical gas distribution wall body in a hollow manner and distributed in a circumferential array; the second cylindrical gas distribution wall body can rotate to each longitudinal gas distribution hole to be respectively communicated with each longitudinal gas inlet hole in an aligned mode;
when each column of air distribution holes are respectively communicated with each column of air inlet holes in an aligned manner, each column of gas distribution holes are also just respectively communicated with each column of gas inlet holes in an aligned manner.
Further, a heating method of the heat-conducting medium heater comprises the following steps:
the gas supply pipe supplies pressure-accumulating gas to the gas pressure-accumulating and heat-accumulating cavity, and the combustion-supporting air supply pipe supplies pressure-accumulating combustion-supporting air to the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity; the gas supply pipe and the gas pressure and heat accumulation cavity maintain the pressure of 1.5MPa to 2.4MPa in the combustion air pressure and heat accumulation ring cavity and the gas pressure and heat accumulation cavity; meanwhile, a rotor motor is started to drive the gas distribution rotor to rotate continuously at a constant speed, so that the first cylindrical gas distribution wall body and the second cylindrical gas distribution wall body synchronously rotate at a constant speed along the axis, and the combustion heating annular cavity forms stable circulation under the traction of the continuously rotating first cylindrical gas distribution wall body and the second cylindrical gas distribution wall body; the rotation of the first cylindrical air distribution wall body and the second cylindrical air distribution wall body also enables each longitudinal row of air distribution holes to be in intermittent periodic alignment communication with each longitudinal row of air inlet holes, and each longitudinal row of gas distribution holes is in intermittent periodic alignment communication with each longitudinal row of gas inlet holes;
when all the longitudinal air distribution holes are communicated with all the longitudinal air inlet holes in an aligned manner, the pressure-accumulating air in the combustion-supporting air pressure-accumulating heat-accumulating annular cavity is uniformly pressed into the combustion heating annular cavity through all the longitudinal air inlet holes in the circumferential array; when each column air distribution hole and each column air inlet hole are staggered, the combustion-supporting air pressure accumulation heat storage annular cavity and the combustion heating annular cavity are not communicated;
when each column of gas distribution holes are communicated with each column of gas inlet holes in an aligned manner, the pressure-accumulating gas in the gas pressure-accumulating and heat-accumulating cavity is uniformly pressed into the combustion heating annular cavity through each column of gas inlet holes in a circumferential array; when each column of gas distribution holes and each column of gas inlet holes are staggered, the gas pressure accumulation heat storage cavity and the combustion heating ring cavity are not communicated;
in the process of the gas distribution rotor rotating continuously at a constant speed; when each column of air distribution holes are respectively communicated with each column of air inlet holes in an aligned manner, each column of gas distribution holes are also just respectively communicated with each column of gas inlet holes in an aligned manner; at the moment, pressure accumulating air in the combustion air pressure accumulating and heat accumulating annular cavity is instantaneously pressed into the combustion heating annular cavity through each longitudinal row of air inlet holes in the circumferential array, and meanwhile, pressure accumulating gas in the gas pressure accumulating and heat accumulating cavity is also instantaneously pressed into the combustion heating annular cavity through each longitudinal row of gas inlet holes in the circumferential array; because the first cylindrical air distribution wall body and the second cylindrical air distribution wall body are in a synchronous continuous rotation state, after combustion-supporting air and gas instantly enter the combustion heating ring cavity at the same time, each longitudinal row of air distribution holes and each longitudinal row of air inlet holes can be rapidly staggered with each other, and meanwhile, each longitudinal row of gas distribution holes and each longitudinal row of gas inlet holes are also synchronously and rapidly staggered with each other; so that the gas pressure and heat accumulation cavity, the combustion heating annular cavity and the combustion air pressure and heat accumulation annular cavity are rapidly in a mutually disconnected state; combustion-supporting air and fuel gas entering the combustion heating annular cavity are rapidly mixed and melted under the action of circulation in the combustion heating annular cavity, and meanwhile, the electronic ignition device is started, so that uniform combustion is rapidly generated in the combustion heating annular cavity, each vertical heat exchange tube on the heat-conducting medium heat exchange tube bundle assembly is uniformly heated, and further, the heat-conducting medium in the heat-conducting medium heat exchange tube bundle assembly is heated; the combustion process in the combustion heating ring cavity can be rapidly expanded, so that the pressure in the combustion heating ring cavity can be increased, in the combustion expansion process in the combustion heating ring cavity, each longitudinal row of air distribution holes and each longitudinal row of air inlet holes are just in a mutually staggered state, each longitudinal row of gas distribution holes and each longitudinal row of gas inlet holes are also in a mutually staggered state, further, the expansion smoke in the combustion heating ring cavity can be discharged out of the outside only through a smoke discharge pipe, and after the expansion smoke in the combustion heating ring cavity is discharged out of the outside, the normal air pressure in the combustion heating ring cavity is recovered;
after the first cylindrical gas distribution wall body and the second cylindrical gas distribution wall body continue to rotate for a certain angle, the longitudinal air distribution holes are respectively realigned and communicated with the longitudinal air inlet holes, the longitudinal gas distribution holes are also just realigned and communicated with the longitudinal gas inlet holes, combustion-supporting air and gas are pressed into the combustion heating annular cavity again, and the mixed gas of the combustion-supporting air and the gas pressed into the combustion heating annular cavity at this time is ignited by utilizing the waste heat of the combustion in the previous period or restarting the electronic ignition device; according to the rule, combustion-supporting air and fuel gas are uniformly pressed into the combustion heating ring cavity at the same time of intermittent periodicity; so as to realize the periodic uniform combustion in the combustion heating ring cavity and heat the heat exchange medium in the heat-conducting medium heat exchange tube bundle component;
meanwhile, the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity is wrapped on the outer sides of the combustion heating annular cavity and the cylindrical middle wall body, heat generated by combustion in the combustion heating annular cavity and the cylindrical middle wall body is absorbed and isolated by the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity, and the heated pressure-accumulating air in the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity is finally pressed into the combustion heating annular cavity for combustion, so that heat loss is effectively avoided.
Has the advantages that: the structure of the invention is simple, the heat-conducting medium is heated evenly, because the first cylindrical air distribution wall body and the second cylindrical air distribution wall body are in a synchronous continuous rotation state, after combustion air and gas instantly enter the combustion heating ring cavity simultaneously, each longitudinal air distribution hole and each longitudinal gas inlet hole can be staggered mutually rapidly, and meanwhile, each longitudinal gas distribution hole and each longitudinal gas inlet hole are also staggered mutually and rapidly in a synchronous way; so that the gas pressure and heat accumulation cavity, the combustion heating annular cavity and the combustion air pressure and heat accumulation annular cavity are rapidly in a mutually disconnected state; the combustion-supporting air and the fuel gas entering the combustion heating annular cavity are rapidly mixed under the action of the circulation in the combustion heating annular cavity, and meanwhile, the electronic ignition device is started, so that uniform combustion is rapidly generated in the combustion heating annular cavity, each vertical heat exchange tube on the heat-conducting medium heat exchange tube bundle assembly is uniformly heated, and the heat-conducting medium in the heat-conducting medium heat exchange tube bundle assembly is further heated.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the furnace body stator and the gas distribution rotor disassembled and exploded along the axis;
FIG. 3 is a schematic drawing showing the furnace body stator and the gas distribution rotor disassembled along the axis;
FIG. 4 is a schematic sectional view of the assembled state of the furnace body stator and the gas distribution rotor;
FIG. 5 is a schematic view of a gas distribution rotor structure;
fig. 6 is a heat transfer medium heat exchange tube bundle assembly.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The heat-conducting medium heater as shown in fig. 1 to 6 comprises a fixedly installed furnace body stator 29, wherein the furnace body stator 29 comprises a horizontal circular chassis 18, and a cylindrical outer wall body 30, a cylindrical middle wall body 6 and a cylindrical inner wall body 3 are coaxially arranged on the upper side of the circular chassis 18 from outside to inside in an integrated manner; a combustion air pressure accumulation and heat accumulation annular cavity 4 is formed between the cylindrical outer wall body 30 and the cylindrical middle wall body 6; a combustion heating annular cavity 2 is formed between the cylindrical middle wall body 6 and the cylindrical inner wall body 3; a gas pressure-accumulating and heat-storing cavity 1 is arranged inside the cylindrical inner wall body 3;
the device also comprises a fuel gas supply pipe 10, a combustion air supply pipe 11, a smoke exhaust pipe 9 and a heat-conducting medium heat exchange tube bundle assembly 25; the gas outlet end of the gas supply pipe 10 extends into the bottom of the gas pressure-accumulating heat-accumulating cavity 1, and the gas outlet end of the combustion-supporting air supply pipe 11 extends into the bottom of the combustion-supporting air pressure-accumulating heat-accumulating annular cavity 4; the smoke inlet end of the smoke exhaust pipe 9 extends into the bottom of the combustion heating ring cavity 2; the heat-conducting medium heat exchange tube bundle assembly 25 is coaxially arranged in the combustion heating annular cavity 2;
the heat-conducting medium heat exchange tube bundle assembly is characterized by further comprising a cold medium lead-in tube 20 and a heat medium lead-out tube 19, wherein the cold medium lead-in tube 20 is communicated and connected with a liquid inlet end of the heat-conducting medium heat exchange tube bundle assembly 25, and the heat medium lead-out tube 19 is communicated and connected with a liquid outlet end of the heat-conducting medium heat exchange tube bundle assembly 25; a liquid pump is further arranged on the cold medium leading-in pipe 20, and an electronic ignition device is arranged in the combustion heating ring cavity 2.
The heat-conducting medium heat exchange tube bundle assembly 25 comprises a plurality of vertical heat exchange tubes 23 which are circumferentially arranged along the axis of the combustion heating annular cavity 2, and the plurality of vertical heat exchange tubes 23 which are circumferentially arranged are communicated end to end through a plurality of transition tubes 22.
The upper end of the combustion-supporting air pressure-accumulating heat-accumulating annular cavity 4 is integrally and hermetically provided with a top ring 31.
The air distribution rotor 28 comprises a horizontal rotor disc 15, a rotor motor 26 is arranged above the rotor disc 15, and the rotor motor 26 is in driving connection with the rotor disc 15 through a transmission shaft 17;
a first cylindrical gas distribution wall body 7 and a second cylindrical gas distribution wall body 5 are integrally and coaxially arranged from outside to inside on the lower side of the rotor disc 15; the first cylindrical gas distribution wall body 7 and the second cylindrical gas distribution wall body 5 are coaxially arranged in the combustion heating annular cavity 2, the cylindrical outer wall of the first cylindrical gas distribution wall body 7 is in sliding fit with the cylindrical inner wall of the cylindrical middle wall body 6, and the cylindrical inner wall of the second cylindrical gas distribution wall body 5 is in sliding fit with the cylindrical outer wall of the cylindrical inner wall body 3;
a plurality of longitudinal air inlet holes 14 are hollowed in the cylindrical middle wall body 6, and the plurality of longitudinal air inlet holes 14 are distributed in a circumferential array; a plurality of longitudinal air distribution holes 13 are hollowed in the first cylindrical air distribution wall body 7, and the longitudinal air distribution holes 13 are distributed in a circumferential array; the first cylindrical air distribution wall body 7 can rotate to each column of air distribution holes 13 to be respectively communicated with each column of air inlet holes 14 in an aligned manner;
a plurality of longitudinal gas inlet holes 8 are hollowed in the cylindrical inner wall body 3, and the plurality of longitudinal gas inlet holes 8 are distributed in a circumferential array; a plurality of longitudinal gas distribution holes 12 are hollowed in the second cylindrical gas distribution wall body 5, and the plurality of longitudinal gas distribution holes 12 are distributed in a circumferential array; the second cylindrical gas distribution wall body 5 can rotate to each longitudinal gas distribution hole 12 to be respectively communicated with each longitudinal gas inlet hole 8 in an aligned manner;
when the air distribution holes 13 of each column are respectively communicated with the air inlet holes 14 of each column in an aligned manner, the gas distribution holes 12 of each column are also just respectively communicated with the gas inlet holes 8 of each column in an aligned manner.
The method and the process and the technical progress of the scheme are summarized as follows:
the gas supply pipe 10 supplies pressure-accumulating gas into the gas pressure-accumulating and heat-accumulating cavity 1, and the combustion air supply pipe 11 supplies pressure-accumulating combustion air into the combustion air pressure-accumulating and heat-accumulating annular cavity 4; the gas supply pipe 10 and the gas pressure-accumulating and heat-storing cavity 1 maintain the pressure-accumulating gas pressure of 1.5MPa to 2.4MPa in the combustion air pressure-accumulating and heat-storing annular cavity 4 and the gas pressure-accumulating and heat-storing cavity 1; meanwhile, the rotor motor 26 is started to drive the gas distribution rotor 28 to rotate continuously at a constant speed, so that the first cylindrical gas distribution wall body 7 and the second cylindrical gas distribution wall body 5 rotate synchronously at a constant speed along the axis, and the combustion heating annular cavity 2 forms a stable circulation under the traction of the first cylindrical gas distribution wall body 7 and the second cylindrical gas distribution wall body 5 which rotate continuously; the rotation of the first cylindrical air distribution wall body 7 and the second cylindrical air distribution wall body 5 also enables each column of air distribution holes 13 to be in intermittent periodic alignment communication with each column of air inlet holes 14, and each column of gas distribution holes 12 is in intermittent periodic alignment communication with each column of gas inlet holes 8;
when each column air distribution hole 13 is communicated with each column air inlet hole 14 in an aligned manner, the pressure-accumulating air in the combustion-supporting air pressure-accumulating heat-accumulating annular cavity 4 is uniformly pressed into the combustion heating annular cavity 2 through each column air inlet hole 14 in a circumferential array; when the air distribution holes 13 and the air inlet holes 14 are staggered, the combustion-supporting air pressure-accumulating heat storage annular cavity 4 is not communicated with the combustion heating annular cavity 2;
when each longitudinal gas distribution hole 12 is communicated with each longitudinal gas inlet hole 8 in an aligned manner, the pressure-accumulating gas in the gas pressure-accumulating heat-accumulating cavity 1 is uniformly pressed into the combustion heating ring cavity 2 through each longitudinal gas inlet hole 8 in a circumferential array; when each column of gas distribution holes 12 and each column of gas inlet holes 8 are staggered, the gas pressure accumulation heat storage cavity 1 and the combustion heating ring cavity 2 are not communicated;
during the continuous uniform rotation of the gas distribution rotor 28; when each column of air distribution holes 13 are respectively communicated with each column of air inlet holes 14 in an aligned manner, each column of gas distribution holes 12 are also just respectively communicated with each column of gas inlet holes 8 in an aligned manner; at the moment, the pressure-accumulating air in the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity 4 is instantaneously pressed into the combustion heating annular cavity 2 through each column air inlet hole 14 in the circumferential array, and meanwhile, the pressure-accumulating gas in the gas pressure-accumulating and heat-accumulating cavity 1 is also instantaneously pressed into the combustion heating annular cavity 2 through each column gas inlet hole 8 in the circumferential array; because the first cylindrical air distribution wall body 7 and the second cylindrical air distribution wall body 5 are in a synchronous continuous rotation state, after combustion air and gas instantly enter the combustion heating annular cavity 2 at the same time, each longitudinal row of air distribution holes 13 and each longitudinal row of air inlet holes 14 are rapidly staggered with each other, and simultaneously, each longitudinal row of gas distribution holes 12 and each longitudinal row of gas inlet holes 8 are also rapidly staggered with each other in a synchronous manner; so that the gas pressure and heat accumulation cavity 1, the combustion heating annular cavity 2 and the combustion air pressure and heat accumulation annular cavity 4 are rapidly in a mutually disconnected state; combustion air and fuel gas entering the combustion heating annular cavity 2 are rapidly mixed under the action of circulation in the combustion heating annular cavity 2, and meanwhile, an electronic ignition device is started, so that uniform combustion is rapidly generated in the combustion heating annular cavity 2, each vertical heat exchange tube 23 on the heat-conducting medium heat exchange tube bundle assembly 25 is uniformly heated, and further, the heat-conducting medium in the heat-conducting medium heat exchange tube bundle assembly 25 is heated; the combustion process in the combustion heating ring cavity 2 can be rapidly expanded, so that the pressure in the combustion heating ring cavity 2 can be increased, in the combustion expansion process in the combustion heating ring cavity 2, each longitudinal air distribution hole 13 and each longitudinal air inlet hole 14 are just in a mutually staggered state, each longitudinal gas distribution hole 12 and each longitudinal gas inlet hole 8 are also in a mutually staggered state, so that the expanded smoke in the combustion heating ring cavity 2 can be exhausted out of the outside only through the smoke exhaust pipe 9, and after the expanded smoke in the combustion heating ring cavity 2 is exhausted out of the outside, the normal air pressure in the combustion heating ring cavity 2 is recovered;
after the first cylindrical air distribution wall body 7 and the second cylindrical air distribution wall body 5 continue to rotate for a certain angle, the longitudinal air distribution holes 13 are respectively realigned and communicated with the longitudinal air inlet holes 14, the longitudinal gas distribution holes 12 are also just realigned and communicated with the longitudinal gas inlet holes 8, combustion-supporting air and gas are pressed into the combustion heating annular cavity 2 again, and the mixed gas of the combustion-supporting air and the gas pressed into the combustion heating annular cavity 2 at this time is ignited by utilizing the waste heat of the combustion in the previous period or restarting an electronic ignition device; according to the rule, combustion-supporting air and fuel gas are uniformly pressed into the combustion heating ring cavity 2 in an intermittent periodic manner; so as to realize the periodic uniform combustion in the combustion heating ring cavity 2 and heat the heat exchange medium in the heat-conducting medium heat exchange tube bundle assembly 25;
meanwhile, the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity 4 is wrapped outside the combustion heating annular cavity 2 and the cylindrical middle wall body 6, heat generated by combustion in the combustion heating annular cavity 2 and the cylindrical middle wall body 6 is absorbed and isolated by the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity 4, and heated pressure-accumulating air in the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity 4 is finally pressed into the combustion heating annular cavity 2 to be combusted, so that heat loss is effectively avoided.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (2)
1. A heat transfer medium heater characterized by: the furnace body stator (29) comprises a fixedly installed furnace body stator (29), the furnace body stator (29) comprises a horizontal circular chassis (18), and a cylindrical outer wall body (30), a cylindrical middle wall body (6) and a cylindrical inner wall body (3) are coaxially arranged on the upper side of the circular chassis (18) from outside to inside in an integrated manner; a combustion air pressure-accumulating and heat-accumulating annular cavity (4) is formed between the cylindrical outer wall body (30) and the cylindrical middle wall body (6); a combustion heating annular cavity (2) is formed between the cylindrical middle wall body (6) and the cylindrical inner wall body (3); a gas pressure-accumulating heat-storing cavity (1) is arranged inside the cylindrical inner wall body (3);
the device also comprises a fuel gas supply pipe (10), a combustion air supply pipe (11), a smoke exhaust pipe (9) and a heat-conducting medium heat exchange pipe bundle assembly (25); the gas outlet end of the gas supply pipe (10) extends into the bottom of the gas pressure-accumulating heat-accumulating cavity (1), and the gas outlet end of the combustion-supporting air supply pipe (11) extends into the bottom of the combustion-supporting air pressure-accumulating heat-accumulating annular cavity (4); the smoke inlet end of the smoke exhaust pipe (9) extends into the bottom of the combustion heating ring cavity (2); the heat-conducting medium heat exchange tube bundle assembly (25) is coaxially arranged in the combustion heating ring cavity (2);
the heat-conducting medium heat exchange tube bundle assembly is characterized by further comprising a cold medium lead-in tube (20) and a heat medium lead-out tube (19), wherein the cold medium lead-in tube (20) is communicated and connected with a liquid inlet end of the heat-conducting medium heat exchange tube bundle assembly (25), and the heat medium lead-out tube (19) is communicated and connected with a liquid outlet end of the heat-conducting medium heat exchange tube bundle assembly (25); a liquid pump is further arranged on the cold medium leading-in pipe (20), and an electronic ignition device is arranged in the combustion heating annular cavity (2);
the heat-conducting medium heat exchange tube bundle assembly (25) comprises a plurality of vertical heat exchange tubes (23) which are circumferentially arrayed along the axis of the combustion heating annular cavity (2), and the vertical heat exchange tubes (23) which are circumferentially arrayed are communicated end to end through a plurality of transition tubes (22);
the upper end of the combustion-supporting air pressure-accumulating heat-accumulating annular cavity (4) is integrally and hermetically provided with a top ring (31);
the air distribution rotor (28) comprises a horizontal rotor disc (15), a rotor motor (26) is arranged above the rotor disc (15), and the rotor motor (26) is in driving connection with the rotor disc (15) through a transmission shaft (17);
a first cylindrical gas distribution wall body (7) and a second cylindrical gas distribution wall body (5) are integrally and coaxially arranged from outside to inside on the lower side of the rotor disc (15); the first cylindrical gas distribution wall body (7) and the second cylindrical gas distribution wall body (5) are coaxially arranged in the combustion heating annular cavity (2), the cylindrical outer wall of the first cylindrical gas distribution wall body (7) is in sliding fit with the cylindrical inner wall of the cylindrical middle wall body (6), and the cylindrical inner wall of the second cylindrical gas distribution wall body (5) is in sliding fit with the cylindrical outer wall of the cylindrical inner wall body (3);
a plurality of longitudinal air inlet holes (14) are arranged on the cylindrical middle wall body (6) in a hollow manner, and the plurality of longitudinal air inlet holes (14) are distributed in a circumferential array manner; a plurality of longitudinal air distribution holes (13) are arranged in the first cylindrical air distribution wall body (7) in a hollow manner, and the longitudinal air distribution holes (13) are distributed in a circumferential array manner; the first cylindrical air distribution wall body (7) can rotate to each column of air distribution holes (13) to be respectively communicated with each column of air inlet holes (14) in an aligned manner;
a plurality of longitudinal gas inlet holes (8) are hollowed in the cylindrical inner wall body (3), and the plurality of longitudinal gas inlet holes (8) are distributed in a circumferential array; a plurality of longitudinal gas distribution holes (12) are arranged in the second cylindrical gas distribution wall body (5) in a hollow manner, and the plurality of longitudinal gas distribution holes (12) are distributed in a circumferential array manner; the second cylindrical gas distribution wall body (5) can rotate to each longitudinal gas distribution hole (12) to be respectively communicated with each longitudinal gas inlet hole (8) in an aligned manner;
when each longitudinal row of air distribution holes (13) are respectively communicated with each longitudinal row of air inlet holes (14) in an aligned mode, each longitudinal row of gas distribution holes (12) are also just respectively communicated with each longitudinal row of gas inlet holes (8) in an aligned mode.
2. The heating method of a heat transfer medium heater according to claim 1, wherein: the gas supply pipe (10) supplies pressure-accumulating gas into the gas pressure-accumulating and heat-accumulating cavity (1), and the combustion air supply pipe (11) supplies pressure-accumulating combustion air into the combustion air pressure-accumulating and heat-accumulating annular cavity (4); and the gas supply pipe (10) and the gas pressure accumulation and heat storage cavity (1) maintain the pressure accumulation gas pressure of 1.5MPa to 2.4MPa in the combustion air pressure accumulation and heat storage annular cavity (4) and the gas pressure accumulation and heat storage cavity (1); meanwhile, a rotor motor (26) is started to drive a gas distribution rotor (28) to rotate continuously at a constant speed, so that the first cylindrical gas distribution wall body (7) and the second cylindrical gas distribution wall body (5) rotate synchronously at a constant speed along the axis, and a combustion heating annular cavity (2) forms a stable circulation under the traction of the continuously rotating first cylindrical gas distribution wall body (7) and the second cylindrical gas distribution wall body (5); the rotation of the first cylindrical air distribution wall body (7) and the second cylindrical air distribution wall body (5) also enables each longitudinal row of air distribution holes (13) to be in intermittent periodic alignment communication with each longitudinal row of air inlet holes (14), and each longitudinal row of gas distribution holes (12) to be in intermittent periodic alignment communication with each longitudinal row of gas inlet holes (8);
when each column air distribution hole (13) is communicated with each column air inlet hole (14) in an aligned manner, the pressure-accumulating air in the combustion air pressure-accumulating heat-accumulating annular cavity (4) is uniformly pressed into the combustion heating annular cavity (2) through each column air inlet hole (14) in a circumferential array; when each column air distribution hole (13) and each column air inlet hole (14) are staggered with each other, the combustion-supporting air pressure accumulation heat accumulation annular cavity (4) and the combustion heating annular cavity (2) are not communicated;
when each longitudinal row of gas distribution holes (12) is communicated with each longitudinal row of gas inlet holes (8) in an aligned manner, the pressure-accumulating gas in the gas pressure-accumulating heat-accumulating cavity (1) is uniformly pressed into the combustion heating annular cavity (2) through each longitudinal row of gas inlet holes (8) in a circumferential array; when each longitudinal row of gas distribution holes (12) and each longitudinal row of gas inlet holes (8) are staggered with each other, the gas pressure accumulation heat storage cavity (1) and the combustion heating annular cavity (2) are not communicated;
in the process of the gas distribution rotor (28) rotating continuously at a constant speed; when each longitudinal row of air distribution holes (13) are respectively communicated with each longitudinal row of air inlet holes (14) in an aligned manner, each longitudinal row of gas distribution holes (12) are also just respectively communicated with each longitudinal row of gas inlet holes (8) in an aligned manner; at the moment, pressure accumulating air in the combustion air pressure accumulating and heat accumulating annular cavity (4) is instantaneously pressed into the combustion heating annular cavity (2) through each longitudinal row of air inlet holes (14) in the circumferential array, and meanwhile, pressure accumulating gas in the gas pressure accumulating and heat accumulating cavity (1) is also instantaneously pressed into the combustion heating annular cavity (2) through each longitudinal row of gas inlet holes (8) in the circumferential array; because the first cylindrical air distribution wall body (7) and the second cylindrical air distribution wall body (5) are in a synchronous continuous rotation state, after combustion air and gas instantly enter the combustion heating annular cavity (2) at the same time, each longitudinal row of air distribution holes (13) and each longitudinal row of air inlet holes (14) are rapidly staggered with each other, and simultaneously, each longitudinal row of gas distribution holes (12) and each longitudinal row of gas inlet holes (8) are also rapidly staggered with each other synchronously; so that the gas pressure-accumulating and heat-storing cavity (1), the combustion heating annular cavity (2) and the combustion air pressure-accumulating and heat-storing annular cavity (4) are rapidly in a mutually disconnected state; combustion air and fuel gas entering the combustion heating annular cavity (2) are rapidly mixed under the action of circulation in the combustion heating annular cavity (2), and meanwhile, an electronic ignition device is started, so that rapid and uniform combustion is generated in the combustion heating annular cavity (2), each vertical heat exchange tube (23) on the heat-conducting medium heat exchange tube bundle assembly (25) is uniformly heated, and further, the heat-conducting medium in the heat-conducting medium heat exchange tube bundle assembly (25) is heated; the combustion process in the combustion heating annular cavity (2) can be rapidly expanded, so that the pressure in the combustion heating annular cavity (2) can be increased, in the combustion expansion process in the combustion heating annular cavity (2), each longitudinal air distribution hole (13) and each longitudinal air inlet hole (14) are just in a mutually staggered state, each longitudinal gas distribution hole (12) and each longitudinal gas inlet hole (8) are also in a mutually staggered state, so that the expansion flue gas in the combustion heating annular cavity (2) can be discharged out of the outside only through a smoke discharge pipe (9), and after the expansion flue gas in the combustion heating annular cavity (2) is discharged out of the outside, the normal air pressure in the combustion heating annular cavity (2) is recovered;
after the first cylindrical air distribution wall body (7) and the second cylindrical air distribution wall body (5) continue to rotate for a certain angle, the longitudinal air distribution holes (13) are respectively realigned and communicated with the longitudinal air inlet holes (14), the longitudinal gas distribution holes (12) are also just realigned and communicated with the longitudinal gas inlet holes (8), combustion-supporting air and gas are pressed into the combustion heating annular cavity (2) again, and the mixed gas of the combustion-supporting air and the gas pressed into the combustion heating annular cavity (2) at this time is ignited by utilizing the waste heat of the previous period of combustion or restarting an electronic ignition device; according to the rule, combustion-supporting air and fuel gas are uniformly pressed into the combustion heating ring cavity (2) at the same time in an intermittent periodic manner; so as to realize the periodic uniform combustion in the combustion heating ring cavity (2) and heat the heat exchange medium in the heat-conducting medium heat exchange tube bundle assembly (25);
meanwhile, the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity (4) is wrapped on the outer sides of the combustion heating annular cavity (2) and the cylindrical middle wall body (6), heat generated by combustion in the combustion heating annular cavity (2) and the cylindrical middle wall body (6) is absorbed and isolated by the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity (4), and meanwhile, pressure-accumulating air heated in the combustion-supporting air pressure-accumulating and heat-accumulating annular cavity (4) is finally pressed into the combustion heating annular cavity (2) to be combusted, so that heat loss is effectively avoided.
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