CN114370635A

CN114370635A - Novel catalytic flameless combustion chamber

Info

Publication number: CN114370635A
Application number: CN202111514067.3A
Authority: CN
Inventors: 周明强; 苗辉; 杨二辉; 宋文凯
Original assignee: Sinohydro New Energy Beijing New Energy Technology Research Institute Co ltd
Current assignee: Sinohydro New Energy Beijing New Energy Technology Research Institute Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-19

Abstract

The invention discloses a novel catalytic flameless combustion chamber, which comprises: the urceolus, the urceolus outside can be dismantled and be connected with annular heater, the urceolus inner wall evenly is connected with a plurality of layers of catalyst base, catalyst base one side fixedly connected with reposition of redundant personnel baffle, catalyst base opposite side is connected with the catalyst, catalyst and urceolus inner wall zonulae occludens, adjacent catalyst base symmetrical arrangement. The invention adopts the half-edge arranged catalyst, so that the reaction gas flows for a longer distance in the same reaction length, the fuel is uniformly mixed and reacts with the catalyst more fully, the catalytic efficiency of the catalyst is improved, and the reaction gas is fully heated by the annular heater, so that the heat productivity and the temperature uniformity are improved, the fuel is combusted more fully, the fuel is saved, and the effects of temperature improvement and air volume increase are realized.

Description

Novel catalytic flameless combustion chamber

Technical Field

The invention relates to the technical field of flameless combustion chambers, in particular to a novel catalytic flameless combustion chamber.

Background

Flameless combustion is a new clean combustion technology. This technique was originally used to characterize a flame that was transparent, without a distinct flare profile, when the fuel was burned. Reaction zone for flameless combustionWider and strong high-speed jet flow can not cause flameless combustion to blow out. Because of no large temperature gradient, the combustion noise is small, the flameless combustion process is stable, soft and quiet, and the method is realized by controlling the rapid mixing of the fuel, the oxidant and the high-temperature flue gas in the combustion furnace with low oxygen concentration and the temperature higher than the self-ignition point of the fuel. Compared with the traditional combustion mode, the flameless combustion has NO visible flame frontal surface, the temperature and the brightness of the whole hearth are uniform, and a large amount of NO is avoided_xThe heat radiation heat exchange efficiency is improved while the heat radiation heat exchange efficiency is generated, the combustion stability and the noise are extremely low, and the heat radiation heat exchange device is regarded as one of the most potential clean combustion technologies by the international combustion world.

Flameless combustion is carried out in a flameless combustion chamber, and in the flameless combustion process, the combustion process is promoted by means of a catalyst, so that the combustion efficiency is improved. Among the existing flameless combustion chamber technology, the catalyst is mostly set into an integral type tubular structure and placed in the tubular flameless combustion chamber, and the fuel is sprayed after atomization air supply and passes through the surface of the catalyst, so that the catalyst is locally agglomerated due to uneven spraying, the catalytic efficiency of the catalyst is lower, the utilization area is smaller, and the problem of low combustion efficiency is caused.

Therefore, in order to solve the technical problems of low catalytic efficiency and low fuel combustion efficiency of the catalyst, a new catalytic flameless combustion chamber needs to be designed.

Disclosure of Invention

In order to solve the technical problems, the invention discloses a novel catalytic flameless combustion chamber, which adopts a half-edge arranged catalyst, so that reaction gas flows in the same reaction length for a longer distance, the fuel is uniformly mixed and reacts with the catalyst more fully, the catalytic efficiency of the catalyst is improved, and the reaction gas is fully heated by a ring heater, so that the uniformity of heat productivity and temperature is improved, the fuel is combusted more fully, the fuel is saved, and the effects of temperature improvement and air volume increase are realized; it includes:

the urceolus, the urceolus outside can be dismantled and be connected with annular heater, the urceolus inner wall evenly is connected with a plurality of layers of catalyst base, catalyst base one side fixedly connected with reposition of redundant personnel baffle, catalyst base opposite side is connected with the catalyst, catalyst and urceolus inner wall zonulae occludens, adjacent catalyst base symmetrical arrangement.

Preferably, the diversion baffle of the catalyst holder in the first layer and the catalyst are fixedly connected to the outer cylinder, gas passes through one side of the catalyst in a concentrated manner, the diversion baffle of the catalyst holder in the second layer is arranged below the catalyst in the first layer, the catalyst in the second layer is arranged below the diversion baffle of the catalyst holder in the first layer, and other adjacent layers are sequentially arranged according to the arrangement mode of the first layer and the second layer.

Preferably, the catalyst seats are arranged at a preset distance, a gap is arranged between every two adjacent catalysts, and gas flows between every two adjacent layers through the gap.

Preferably, the catalyst width is greater than the width of the catalyst seat.

Preferably, the shunting baffle is symmetrically arranged into two pieces, the two shunting baffles are respectively arranged close to the edge of the catalyst seat, and the shunting baffles are tightly connected with the inner wall of the outer barrel.

Preferably, the cross sections of the flow dividing baffle and the catalyst are semicircular, the flow dividing baffle and the cross section of the catalyst form a whole circle, and the circular radiuses of the cross sections of the flow dividing baffle and the catalyst are equal to the radius of the inner wall of the outer cylinder.

Preferably, the two ends of the outer cylinder are respectively provided with an air inlet and an air outlet, one side of the outer cylinder, which is close to the air inlet, is provided with a feed inlet, air flows towards the air outlet along the air inlet, and the catalyst arrangement direction is perpendicular to the air flow direction.

Preferably, the air outlet is arranged at the side end of the outer cylinder, and the air outlet is arranged close to the flow dividing baffle plate of the catalyst seat in the last layer.

Preferably, the outer cylinder inner wall is close to one end of the air outlet and is connected with a noise reduction device, and the noise reduction device comprises:

the shell is fixedly connected to one end, close to the air outlet, of the inner wall of the outer barrel;

the sliding groove is formed in one side, close to the inner part of the outer barrel, of the shell;

the sliding plate is connected to the inner wall of the sliding groove in a sliding mode, a sealing ring is connected to the side end of the sliding plate, and a space formed by the sliding plate and the bottom of the sliding groove in an enclosing mode is communicated with outside air;

the airbag supporting plate is fixedly connected to one side, close to the inner part of the outer cylinder, of the sliding plate and is in sliding connection with the inner wall of the sliding groove;

the air bag is connected to one side of the air bag supporting plate close to the inner part of the outer cylinder;

the side sliding groove is formed in the side end of the sliding groove;

the sliding rod is fixedly connected to the side end of the air bag supporting plate, is connected in the side sliding groove in a sliding manner, and is connected with a pressing block;

the reset spring is connected between the sliding rod and the bottom end of the side sliding groove;

the touch panel is fixedly connected to the side wall of the side chute, a pressure sensor is arranged on the touch panel, and the pressure sensor is electrically connected with the controller;

the miniature inflator pump is arranged in the air bag supporting plate, the air outlet end of the miniature inflator pump is connected with the air bag, and the miniature inflator pump is electrically connected with the controller;

a first pipeline arranged in the airbag supporting plate and connected with the airbag air outlet;

second pipelines which are arranged in the airbag supporting plate and two of which are communicated with the first pipeline;

and the spray head is connected to the bottom end of the sliding plate and is communicated with a second pipeline.

Preferably, a pressure relief device is arranged in the second pipeline, and the pressure relief device comprises:

the pressure relief device body is fixedly connected to the inner wall of the second pipeline;

the first air port is formed in the top end of the pressure relief device body and communicated with the second pipeline;

the second air port is formed in the bottom end of the pressure relief device body and communicated with the spray head;

the two ends of the communicating cavity are respectively communicated with the first air port and the second air port;

the air guide pipe is U-shaped, two ends of the air guide pipe are communicated with the communicating cavity, and one end of the air guide pipe, which is far away from the first air port, is communicated with the second air port;

the stop block is connected to the inner wall of the communicating cavity in a sliding mode, the stop block is in contact with one end, close to the first air port, of the air guide tube, so that one end, close to the first air port, of the air guide tube is closed, the bottom end of the stop block is separated from one end, far away from the first air port, of the air guide tube, one end, far away from the first air port, of the air guide tube is communicated with the communicating cavity, and the length of the stop block is larger than the maximum distance between the two ends of the air guide tube;

and the spring is connected between the stop block and the inner wall of the end, far away from the first air port, of the communication cavity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a catalyst mounting structure according to the present invention;

FIG. 2 is a schematic view of the structure of the outer barrel of the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a schematic view of the external structure of the present invention;

FIG. 5 is a schematic cross-sectional view of a noise reducer according to the present invention;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a schematic view of an installation structure of a pressure relief device according to the present invention;

FIG. 8 is an enlarged view of a portion of the structure shown at B in FIG. 7 according to the present invention.

In the figure: 1. an outer cylinder; 2. a ring heater; 3. a catalyst seat; 4. a flow dividing baffle; 5. a catalyst; 6. a noise reduction device; 7. a pressure relief device; 11. an air inlet; 12. an air outlet; 13. a feed inlet; 61. a housing; 62. a chute; 63. a sliding plate; 64. an airbag support plate; 65. an air bag; 66. a side chute; 67. a slide bar; 68. a return spring; 69. a touch panel; 610. a micro inflator; 611. a first pipeline; 612. a second pipeline; 613. a spray head; 71. a pressure relief device body; 72. a first gas port; 73. a second gas port; 74. a communicating cavity; 75. an air duct; 76. a stopper; 77. a spring.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 8, the present embodiment provides a novel catalytic flameless combustion chamber, comprising:

urceolus 1, can dismantle in 1 outside of urceolus and be connected with

ring heater

2, 1 inner wall of urceolus evenly is connected with a plurality of layers of

catalyst base

3, 3 one side fixedly connected with of catalyst base reposition of redundant personnel baffle 4, 3 opposite sides of catalyst base are connected with catalyst 5,

catalyst

5 and 1 inner wall zonulae occludens of urceolus, it is adjacent catalyst base 3 symmetrical arrangement.

The working principle of the invention is as follows:

the invention provides a novel catalytic flameless combustion chamber, wherein a plurality of layers of catalyst seats 3 are connected to the inner wall of an outer cylinder 1, catalysts 5 are fixed on the catalyst seats 3, two adjacent layers of catalysts 5 are symmetrically distributed, heat is transferred to the outer cylinder 1, the catalyst seats 3 and a diversion baffle 4 through a ring heater 2, the catalysts 5 in the catalyst seats are heated, reaction gas reaches the catalyst seats 3 and the diversion baffle 4 of the next layer after coming out of the catalyst 5 of the previous layer, and then enters the catalysts 5 of the next layer, the reaction gas passing through the catalysts 5 of the first layer is scattered by the catalyst seats 3 and the diversion baffle 4, and the heat is uniformly mixed through the action of the catalyst 5 and the diversion baffle 4.

The invention has the beneficial effects that: the novel catalytic flameless combustion chamber provided by the invention adopts the half-edge arranged catalyst 5, so that the reaction gas flows for a longer distance in the same reaction length, the fuel is uniformly mixed and reacts with the catalyst 5 more fully, the catalytic efficiency of the catalyst 5 is improved, and the reaction gas is fully heated by the annular heater 2, so that the uniformity of heat productivity and temperature is improved, the fuel is combusted more fully, the fuel is saved, and the effects of temperature improvement and air volume increase are realized.

As shown in fig. 1 and 3, in one embodiment, the diversion baffle 4 and the catalyst 5 of the catalyst holder 3 in the first layer are fixedly connected to the outer cylinder 1, the gas is concentrated to pass through one side of the catalyst 5, the diversion baffle 4 of the catalyst holder 3 in the second layer is arranged below the catalyst 5 in the first layer, the catalyst 5 in the second layer is arranged below the diversion baffle 4 of the catalyst holder 3 in the first layer, and other adjacent layers are arranged in sequence according to the arrangement mode of the first layer and the second layer.

The working principle and the beneficial effects of the technical scheme are as follows:

because the two adjacent layers of catalysts 5 are not aligned but symmetrically distributed, and the catalyst seat 3 and the flow dividing baffle 4 are arranged below each layer of catalyst 5, the reaction gas does not directly enter the next layer of catalyst 5 after coming out of the previous layer of catalyst 5, but first reaches the next layer of catalyst seat 3 and the flow dividing baffle 4 and then enters the next layer of catalyst 5. The reaction gas flows farther in the same reaction length, so that the fuel is uniformly mixed and the reaction is more sufficient, and the reaction gas is directly sprayed onto the catalyst seat 3 and the flow dividing baffle 4 after coming out of the catalyst 5, so that the reaction gas is more sufficiently heated, the uniformity of heating value and temperature is improved, the fuel is more sufficiently combusted, the fuel is saved, and the effects of temperature improvement and air volume increase are realized.

As shown in fig. 1 and 3, in one embodiment, the catalyst holders 3 are arranged at a predetermined distance from each other, and a gap is provided between adjacent catalysts 5, through which gas flows between the respective layers.

a plurality of layers of catalyst seats 3 are arranged according to a preset distance, a gap is arranged between adjacent catalysts 5, so that reaction gas reaches the next layer of catalyst seats 3 and a shunt baffle 4 after coming out of the previous layer of catalyst 5, then enters the next layer of catalyst 5 through the gap, the gap is arranged according to the preset distance, 5 direct contact of the catalysts between adjacent layers is avoided, the flowing direction of the reaction gas is influenced by blocking the gas flow, the reaction gas directly enters the catalyst 5 of the next layer from the catalyst 5 of the previous layer, the structure of the half-edge distributed catalyst 5 can achieve the preset effect, the reaction gas is enabled to rapidly circulate according to the preset path, the catalytic reaction is fully performed, and the reliability of the device is improved.

As shown in fig. 1 and 3, in one embodiment, the catalyst 5 has a width greater than the width of the catalyst holder 3.

if the width of the catalyst 5 is smaller than that of the catalyst seat 3, part of the reaction gas after coming out of the catalyst 5 on the upper layer collides with the catalyst seat 3 and the flow dividing baffle 4 on the same layer, and the gap between adjacent layers is insufficient, so that the flow of part of the reaction gas is blocked, and the local pressure is increased. The width setting that is greater than catalyst seat 3 with catalyst 5 width, under the prerequisite of guaranteeing catalyst 5 installation stability, make reaction gas from last layer catalyst 5 back of coming out, can reach on next floor catalyst seat 3 and reposition of redundant personnel baffle 4 fast, then enter into in next floor catalyst 5 through the clearance, reaction gas flows in the clearance and does not receive blockking, avoid producing local pressure at catalyst seat 3 outstanding catalyst 5 part, can reduce reaction gas's accumulation, the pressure in the balanced urceolus 1, prevent that local pressure is too big to lead to catalyst 5 to produce and damage and reunion phenomenon.

As shown in fig. 1 and 3, in an embodiment, the flow dividing baffle 4 is symmetrically provided in two pieces, two pieces of flow dividing baffles 4 are respectively arranged near the edge of the catalyst base 3, and the flow dividing baffles 4 are tightly connected with the inner wall of the outer cylinder 1.

set up 4 symmetries of reposition of redundant personnel baffle into two, can make 4 both sides thermally equivalent of reposition of redundant personnel baffle, two reposition of redundant personnel baffles 4 carry out the separation to the reaction gas of both sides respectively, two reposition of redundant personnel baffles 4 are connected with urceolus 1 simultaneously, structural stability is good, can stabilize fixedly to catalyst 5, prevent that catalyst 5 from taking place to shift under the air current effect, and simultaneously, be equipped with the clearance between two reposition of redundant personnel baffles 4, the lightweight has been realized to whole structure quality, reduce manufacturing cost, through the clearance that sets up between two reposition of redundant personnel baffles 4, the pressure of the inside and outside of balanced reposition of redundant personnel baffle 4, avoid reposition of redundant personnel baffle 4 both sides pressure inhomogeneous to lead to bending deformation and urceolus 1 to take place local separation, improve the joint strength between reposition of redundant personnel baffle 4 and the urceolus 1, reduce the deflection of redundant personnel baffle 4, avoid in-process junction to take place gas leakage.

As shown in fig. 1 and 3, in one embodiment, the cross sections of the flow dividing baffle 4 and the catalyst 5 are arranged in a semicircular shape, the cross sections of the flow dividing baffle 4 and the catalyst 5 form a complete circle, and the radius of the cross section circle of the flow dividing baffle 4 and the cross section circle of the catalyst 5 is equal to the radius of the inner wall of the outer cylinder 1.

the cross sections of the shunt baffle 4 and the catalyst 5 are set to be semicircular, the cross sections of the shunt baffle 4 and the catalyst 5 form a whole circle, the multi-layer catalyst 5 forms a half-edge arrangement structure, the structural size of each layer of catalyst 5 is equal, the selection and batch purchase of the catalyst 5 are convenient, the replacement of the catalyst 5 is more convenient, the outer side of the shunt baffle 4 and the outer side of the catalyst 5 are tightly connected with the inner wall of the outer barrel 1, the edge of each layer is sealed, the reaction gas can only flow through the catalyst 5 of each layer, the gas leakage caused by the edge gap is avoided, and the fuel and the catalyst 5 can fully react, meanwhile, the shunting baffle 4 is tightly connected with the outer barrel 1, so that the heat of the annular heater 2 can be quickly and uniformly transmitted to the shunting baffle 4 through the outer barrel 1, the heat distribution uniformity of the shunting baffle 4 is improved, and the fuel is more sufficiently combusted after being contacted with reaction gas.

As shown in fig. 3 and 4, in one embodiment, the outer cylinder 1 is provided with a gas inlet 11 and a gas outlet 12 at two ends respectively, a side of the outer cylinder 1 near the gas inlet 11 is provided with a feed inlet 13, gas flows along the gas inlet 11 to the gas outlet 12, and the catalyst 5 is arranged in a direction perpendicular to the gas flow direction.

the air inlet 11 of the outer cylinder 1 is connected with an external air supply device, air fluid enters the front end of the first layer of catalyst 5 in the outer cylinder 1 through the air inlet 11, the feed port 13 of the outer cylinder 1 is connected with a fuel supply device, fuel enters the front end of the first layer of catalyst 5 in the outer cylinder 1 through the feed port 13, reaction gas in the outer cylinder 1 flows out of the last layer of catalyst 5 and is discharged from the air outlet 12, the arrangement direction of the catalyst 5 is perpendicular to the flowing direction of the reaction gas, the pressure generated to the catalyst 5 during gas flowing is reduced, the reaction gas is fully contacted with the catalyst 5, the damage and the local part of the catalyst 5 are reduced, and the catalytic efficiency of catalyst 5 is improved.

As shown in fig. 3 and 4, in one embodiment, the air outlet 12 is disposed at the side end of the outer cylinder 1, and the air outlet 12 is disposed near the flow dividing baffle 4 of the catalyst holder 3 in the last layer.

the gas outlet 12 is arranged close to the flow dividing baffle 4 of the catalyst seat 3 in the last layer, so that the reaction gas collides with the inner wall of the outer cylinder 1 to change the flow direction after flowing out of the catalyst 5, and then flows out of the gas outlet 12 at the side end, when the gas flow contacts with the inner wall of the outer cylinder 1, the heat of the outer cylinder 1 is conducted into the reaction gas, the temperature of the reaction gas is increased, the temperature difference between the gas temperature at the outlet and the gas temperature at the inlet is ensured, and the fuel is fully reacted.

As shown in fig. 5 and 6, in one embodiment, a noise reduction device 6 is connected to an end of the inner wall of the outer cylinder 1 close to the air outlet 12, and the noise reduction device 6 includes:

the shell 61, the shell 61 is fixedly connected to one end of the inner wall of the outer cylinder 1 close to the air outlet 12;

a sliding groove 62, wherein the sliding groove 62 is opened at one side of the casing 61 close to the inside of the outer cylinder 1;

the sliding plate 63 is connected to the inner wall of the sliding groove 62 in a sliding manner, a sealing ring is connected to the side end of the sliding plate 63, and a space formed by the sliding plate 63 and the groove bottom of the sliding groove 62 is communicated with the outside air;

an airbag support plate 64, wherein the airbag support plate 64 is fixedly connected to one side of the sliding plate 63 close to the inside of the outer cylinder 1, and the airbag support plate 64 is slidably connected with the inner wall of the sliding groove 62;

an airbag 65 connected to a side of the airbag support plate 64 near the inside of the outer tube 1;

a side sliding groove 66, wherein the side sliding groove 66 is arranged at the side end of the sliding groove 62;

the sliding rod 67 is fixedly connected to the side end of the air bag supporting plate 64, the sliding rod 67 is connected into the side sliding groove 66 in a sliding manner, and the side end of the sliding rod 67 is connected with a pressing block;

the return spring 68 is connected between the sliding rod 67 and the bottom end of the side sliding chute 66;

the touch panel 69 is fixedly connected to the side wall of the side chute 66, and a pressure sensor is arranged on the touch panel 69 and is electrically connected with the controller;

the micro inflator 610 is installed in the air bag support plate 64, the air outlet end of the micro inflator 610 is connected with the air bag 65, and the micro inflator 610 is electrically connected with a controller;

a first pipe 611, the first pipe 611 being disposed inside the airbag support plate 64 and connected to the airbag 65 air outlet;

a second tube 612, said second tube 612 being arranged within said airbag support plate 64, and both said second tubes 612 communicating with the first tube 611;

a spray head 613, wherein the spray head 613 is connected to the bottom end of the sliding plate 63, and the spray head 613 is communicated with the second pipe 612.

when the reaction gas collides with the inner wall of the outer cylinder 1, a noise is generated to increase the noise in the combustion chamber, the noise reducer 6 is arranged on the inner wall of the outer cylinder 1, when the noise reducer 6 is used, the reaction gas collides with the air bag 65 after passing through the last layer of catalyst 5, the air in the air bag 65 is buffered by the air bag 65, the reaction gas compresses the air bag 65, the air in the air bag 65 is discharged under the pressure, the air in the air bag 65 enters the two second pipelines 612 through the first pipeline 611 and is then discharged into the chute 62 through the nozzle 613, the reaction force generated by the discharged air acts on the sliding plate 63 to further buffer the reaction gas, the discharged air flows out of the chute 62, the air in the air bag 65 is gradually evacuated due to the collision of the reaction gas to drive the air bag 65 and the air bag support plate 64 to slide towards the bottom end of the chute 62, when the pressing block at the side end of the sliding rod 67 contacts the touch plate 69, the pressure sensor feeds pressure data back to the controller, the controller starts the micro inflator 610 to inflate the air bag 65, the buffer function of the air bag 65 is recovered, the air bag 65 exhausts air to generate reaction force again, and meanwhile, under the action of the reset spring 68, the pressing block is separated from the touch plate 69, and the micro inflator 610 stops inflating the air bag.

Through the structure design, at 1 inner wall of urceolus setting up and falling device 6 of making an uproar, reactant gas contacts with falling device 6 of making an uproar behind the catalyst 5 of last layer, fall device 6 of making an uproar and cushion reactant gas through the elasticity to gasbag 65, simultaneously through the reaction force that the air discharge produced in the extrusion gasbag 65, further cushion reactant gas, and, can automatic inflation after the air discharge in gasbag 65, guarantee the buffer characteristic of gasbag 65, multistage buffering setting can carry out abundant buffering to reactant gas, reduce the noise that reactant gas and 1 inner wall of urceolus collide the production better, reduce the influence of device to the external world, improve the use impression, the degree of automation of device has been improved, make the combustion chamber have more the practicality.

As shown in fig. 7 and 8, in one embodiment, a pressure relief device 7 is disposed in the second pipeline 612, and the pressure relief device 7 includes:

the pressure relief device body 71, wherein the pressure relief device body 71 is fixedly connected to the inner wall of the second pipeline 612;

the first air port 72 is formed in the top end of the pressure relief device body 71, and the first air port 72 is communicated with the second pipeline 612;

a second air port 73, wherein the second air port 73 is opened at the bottom end of the pressure relief device body 71, and the second air port 73 is communicated with the nozzle 613;

a communication chamber 74, two ends of the communication chamber 74 are respectively communicated with the first air port 72 and the second air port 73;

the air duct 75 is provided with a U-shaped structure, two ends of the air duct 75 are both communicated with the communicating cavity 74, and one end of the air duct 75, which is far away from the first air port 72, is communicated with the second air port 73;

the stop block 76 is slidably connected to the inner wall of the communicating cavity 74, the stop block 76 is in contact with one end, close to the first air port 72, of the air duct 75, so that one end, close to the first air port 72, of the air duct 75 is closed, the bottom end of the stop block 76 is separated from one end, far away from the first air port 72, of the air duct 75, so that one end, far away from the first air port 72, of the air duct 75 is communicated with the communicating cavity 74, and the length of the stop block 76 is greater than the maximum distance between the two ends of the air duct 75;

and a spring 77, wherein the spring 77 is connected between the stop 76 and the inner wall of the communication cavity 74 at the end far away from the first air port 72.

when the air in the air bag 65 is discharged from the nozzle 613 into the chute 62, the air impacts the inner wall of the chute 62, and when the impact pressure is too high, noise is generated, therefore, the pressure relief device 7 is arranged in the second pipeline 612, when the pressure relief device 7 is used, the air in the second pipeline 612 enters the communication cavity 74 through the first air port 72, the entered air is located between the stop 76 and the first air port 72, the stop 76 is pushed to move towards the second air port 73 along with the increase of the air quantity, the spring 77 buffers the stop 76 to realize pressure relief, the stop 76 moves to be separated from one end of the air duct 75 close to the first air port 72, and the end of the air duct 75 far away from the first air port 72 is sealed, because one end of the air duct 75 close to the first air port 72 is communicated with the communication cavity 74, the air rapidly enters the air duct 75, so that the air pressure applied to the stop 76 is suddenly reduced, and the stop 76 moves upwards under the action of the spring 77, the end of the air duct 75 close to the first air port 72 is closed again, the air in the air duct 75 enters the communicating chamber 74 from the end far from the first air port 72 and is discharged into the spray head 613 through the second air port 73, the pressure of the discharged air is lower than that of the air in the second pipeline 612, and when the air continues to increase, the stop 76 repeats the above actions to intermittently discharge the air in the second pipeline 612.

Through the above structural design, the pressure relief device 7 is arranged in the second pipeline 612, the stopper 76 reciprocates under the action of air pressure and the spring 77 to intermittently close and open two ends of the air duct 75, air is gradually exhausted through the air duct 75, so that the air entering the second pipeline 612 from the air bag 65 is relieved, the air after pressure relief is intermittently exhausted, buffer force is provided for reaction gas, the effect of the noise reduction device 6 is improved, meanwhile, when the air is exhausted from the spray head 613 to the chute 62, the air impacts the inner wall of the chute 62 excessively to generate noise, the noise reduction performance of the device is further improved while the buffer performance is ensured, in addition, when the pressure relief device is adopted, the maximum moving distance of the stopper 76 under the action of the spring 77 cannot completely separate the stopper 76 from the air duct 75, when the air is sprayed from the spray head 613 to generate reaction force, the air rebounds and cannot return to the second pipeline 612 from the air duct 75 again, the air can only pass through the pressure relief device 7 in one way, the backflow of the air is effectively avoided, the buffer force provided by the sprayed air is prevented from being invalid, and the reliability of the device is improved.

In one embodiment, the noise reduction device 6 further comprises:

a first air pressure sensor, which is arranged on one side of the casing 61 close to the inside of the outer cylinder 1 and is used for detecting the pressure inside the outer cylinder 1;

a second air pressure sensor disposed in the air bag 65 for detecting an initial pressure inside the air bag 65;

a displacement sensor provided on the housing 61 for detecting a displacement value of the tip of the airbag 65;

a flow rate sensor provided inside the outer tube 1 for detecting a flow rate of the reaction gas before the collision with the airbag 65;

the controller is electrically connected with the first air pressure sensor, the second air pressure sensor, the displacement sensor and the flow velocity sensor, the controller is provided with an inflation control module, the inflation control module is electrically connected with the micro inflator pump 610, the controller calculates the buffering capacity of the air bag 65 under the preset pressure according to a preset algorithm, judges whether the buffering capacity value reaches a preset value, controls the inflation quantity of the micro inflator pump 610 according to the judgment result, and adjusts the initial pressure in the air bag 65;

the specific steps of the preset algorithm are as follows:

step a1, calculating the damping capacity of the bladder 65 at a predetermined pressure according to the following formula:

wherein Q is the calculated buffering capacity of the air bag 65 under the preset pressure, V is the initial volume of the air bag 65, m is the mass of the air bag 65, and p₁Is the pressure inside the outer cylinder 1 and is sensed by the first air pressureU is a flow rate of the reaction gas before the collision with the air bag 65 and detected by the flow rate sensor, A is an area of a side of the air bag 65 contacting the reaction gas, Δ h is a displacement value of the top end of the air bag 65 in one buffer cycle and detected by the displacement sensor, h is an initial height of the air bag 65, k is a gas-heat ratio in the air bag 65, and p is a gas-heat ratio in the air bag 65₂Is the initial pressure within the bladder 65.

Step A2, according to the buffering capacity of the air bag 65 under the preset pressure obtained in the step A1, when the buffering capacity Q of the air bag 65 under the preset pressure is smaller than the preset buffering capacity Q of the air bag 65_mWhen the pressure is higher than the preset pressure, namely the buffer capacity of the air bag 65 can not meet the use requirement, the controller controls the inflating quantity of the micro inflator 610 and adjusts the initial pressure p in the air bag 65₂Recalculating, when the buffering capacity Q of the air bag 65 under the preset pressure is larger than the preset buffering capacity Q of the air bag 65_mWhen the initial pressure p is adopted, namely the buffer capacity of the air bag 65 can meet the use requirement₂The micro inflator 610 is controlled to inflate.

when the air bag 65 is used, the air bag 65 is inflated according to the preset pressure through the micro inflator 610, the air bag 65 inflated with the preset pressure is adopted, the reaction gas can be fully buffered when the air in the air bag 65 is extruded, therefore, the material of the air bag 65 is supposed not to generate elastic deformation, the area of the contact side of the air bag 65 and the reaction gas is not changed in the compression process of the air bag 65, the reaction gas vertically collides on the air bag 65, the detection data of the first air pressure sensor, the second air pressure sensor, the displacement sensor and the flow velocity sensor are fed back to the controller, the buffering capacity of the air bag 65 under the preset pressure is calculated through the calculation method, and when the buffering capacity Q of the air bag 65 under the preset pressure is smaller than the buffering capacity Q of the air bag 65 under the preset pressure_mWhen the pressure is higher than the preset pressure, namely the buffer capacity of the air bag 65 can not meet the use requirement, the controller controls the inflating quantity of the micro inflator 610 to adjust the initial pressure p in the air bag 65₂And recalculating until the buffer capacity Q of the air bag 65 under the preset pressure is greater than the preset buffer capacity Q of the air bag 65_mAt this time, the buffer capacity of the air bag 65 can meet the use requirement, and the initial pressure p at this time is adopted₂The micro inflator 610 is controlled to inflate the air bag 65, the controller automatically adjusts the initial pressure value according to the calculation result, theoretical basis is provided for the control of the micro inflator 610, the reaction gas can be fully buffered when the air in the air bag 65 is extruded, and the reliability and the automation degree of the device are improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The novel catalytic flameless combustion chamber is characterized by comprising:

urceolus (1), urceolus (1) outside can be dismantled and be connected with ring heater (2), urceolus (1) inner wall evenly is connected with a plurality of layers of catalyst base (3), catalyst base (3) one side fixedly connected with reposition of redundant personnel baffle (4), catalyst base (3) opposite side is connected with catalyst (5), catalyst (5) and urceolus (1) inner wall zonulae occludens, adjacent catalyst base (3) symmetrical arrangement.

2. The new catalytic flameless combustion chamber according to claim 1, characterized in that the dividing baffle (4) of the catalyst holder (3) and the catalyst (5) in the first layer are fixedly connected to the outer cylinder (1), the gas is concentrated through one side of the catalyst (5), the dividing baffle (4) of the catalyst holder (3) in the second layer is arranged below the catalyst (5) in the first layer, the catalyst (5) in the second layer is arranged below the dividing baffle (4) of the catalyst holder (3) in the first layer, and other adjacent layers are arranged in sequence according to the arrangement of the first layer and the second layer.

3. A new catalytic flameless combustion chamber as claimed in claim 1, characterized in that a plurality of said catalyst holders (3) are arranged at a predetermined distance, with gaps being provided between adjacent said catalysts (5), through which the gas flows between the layers.

4. The new catalytic flameless combustion chamber according to claim 1, characterized in that the width of the catalyst (5) is greater than the width of the catalyst holder (3).

5. The new catalytic flameless combustion chamber according to claim 1, characterized in that the flow dividing baffle (4) is symmetrically arranged in two pieces, the two pieces of flow dividing baffle (4) are respectively arranged near the edge of the catalyst base (3), and the flow dividing baffle (4) is tightly connected with the inner wall of the outer cylinder (1).

6. The new catalytic flameless combustion chamber of claim 1, characterized in that the cross-section of the flow dividing baffle (4) and the catalyst (5) is configured to be semicircular, the cross-section of the flow dividing baffle (4) and the cross-section of the catalyst (5) form a complete circle, and the radius of the cross-section circle of the flow dividing baffle (4) and the cross-section circle of the catalyst (5) is equal to the radius of the inner wall of the outer cylinder (1).

7. The new-type catalytic flameless combustion chamber as claimed in claim 1, wherein the outer cylinder (1) has an air inlet (11) and an air outlet (12) at its two ends, the outer cylinder (1) has an inlet (13) at its side near the air inlet (11), the gas flows along the air inlet (11) to the air outlet (12), and the catalyst (5) is disposed in a direction perpendicular to the gas flow.

8. The new catalytic flameless combustion chamber according to claim 1, characterized in that the air outlet (12) is arranged at the side end of the outer cylinder (1), the air outlet (12) being arranged close to the flow dividing baffle (4) of the catalyst holder (3) in the last layer.

9. The new catalytic flameless combustion chamber according to claim 1, characterized in that a noise reduction means (6) is connected to the inner wall of the outer cylinder (1) at the end near the air outlet (12), said noise reduction means (6) comprising:

the shell (61), the shell (61) is fixedly connected to one end, close to the air outlet (12), of the inner wall of the outer cylinder (1);

the sliding chute (62) is arranged on one side, close to the inner part of the outer cylinder (1), of the shell (61);

the sliding plate (63) is connected to the inner wall of the sliding groove (62) in a sliding mode, a sealing ring is connected to the side end of the sliding plate (63), and a space formed by the sliding plate (63) and the bottom of the sliding groove (62) in an enclosing mode is communicated with outside air;

the air bag supporting plate (64) is fixedly connected to one side, close to the inner part of the outer cylinder (1), of the sliding plate (63), and the air bag supporting plate (64) is in sliding connection with the inner wall of the sliding groove (62);

an airbag (65), wherein the airbag (65) is connected to one side of the airbag supporting plate (64) close to the inner part of the outer cylinder (1);

a side sliding chute (66), wherein the side sliding chute (66) is arranged at the side end of the sliding chute (62);

the sliding rod (67) is fixedly connected to the side end of the air bag supporting plate (64), the sliding rod (67) is connected into the side sliding groove (66) in a sliding mode, and a pressing block is connected to the side end of the sliding rod (67);

the return spring (68), the said return spring (68) is connected between said slide bar (67) and bottom end of the said side concrete chute (66);

the touch panel (69), the touch panel (69) is fixedly connected to the side wall of the side chute (66), a pressure sensor is arranged on the touch panel (69), and the pressure sensor is electrically connected with the controller;

the micro inflator pump (610), the micro inflator pump (610) is installed in the air bag support plate (64), the air outlet end of the micro inflator pump (610) is connected with the air bag (65), and the micro inflator pump (610) is electrically connected with the controller;

a first pipe (611), the first pipe (611) being disposed within the airbag support plate (64) and connected to the airbag (65) air outlet;

a second tube (612), the second tube (612) being arranged within the airbag support plate (64), and both of the second tubes (612) communicating with the first tube (611);

a spray head (613), wherein the spray head (613) is connected to the bottom end of the sliding plate (63), and the spray head (613) is communicated with a second pipeline (612).

10. The new catalytic flameless combustion chamber according to claim 9, characterized in that a pressure relief device (7) is provided in said second conduit (612), said pressure relief device (7) comprising:

the pressure relief device body (71), the pressure relief device body (71) is fixedly connected to the inner wall of the second pipeline (612);

the first air port (72) is formed in the top end of the pressure relief device body (71), and the first air port (72) is communicated with the second pipeline (612);

the second air port (73), the second air port (73) is opened at the bottom end of the pressure relief device body (71), and the second air port (73) is communicated with the spray head (613);

a communication cavity (74), wherein two ends of the communication cavity (74) are respectively communicated with the first air port (72) and the second air port (73);

the air duct (75), the air duct (75) sets up to the U type, both ends of the air duct (75) are communicated with the communicating cavity (74), and one end of the air duct (75) far away from the first air port (72) is communicated with the second air port (73);

the stop block (76) is connected to the inner wall of the communicating cavity (74) in a sliding mode, the stop block (76) is in contact with one end, close to the first air opening (72), of the air guide pipe (75), so that one end, close to the first air opening (72), of the air guide pipe (75) is closed, the bottom end of the stop block (76) is separated from one end, far away from the first air opening (72), of the air guide pipe (75), one end, far away from the first air opening (72), of the air guide pipe (75) is communicated with the communicating cavity (74), and the length of the stop block (76) is larger than the maximum distance between the two ends of the air guide pipe (75);

and the spring (77) is connected between the stop block (76) and the inner wall of one end, away from the first air port (72), of the communication cavity (74).