A front combustion chamber that is easy to maintain and replace

Abstract

The present invention discloses a pre-combustion chamber that is convenient for maintenance and replacement, and relates to the technical field of pre-combustion chambers for boilers, and includes: a support frame, on which a combustion chamber is rotatably arranged, and one end of the combustion chamber is an open structure; a connecting seat, which is fixedly sleeved on the combustion chamber, and the side wall of the connecting seat is provided with an annular groove, and one side of the annular groove is provided with a plurality of connecting pipes distributed at equal distances, each of which is inclined, and each connecting pipe passes through the inner wall of the combustion chamber. The present invention can drive the swing of the combustion chamber through a power component to achieve relative movement between the seat body and the combustion chamber, and then cooperate with a scraper to achieve the cleaning of the inner wall of the combustion chamber, and through the state control of the air supply component, the air pressure in the combustion chamber on one side of the seat body rises, and then the seat body can move under the action of the air pressure to clean various places in the combustion chamber.

Description

Technical Field

[0001] The invention relates to the technical field of boiler pre-combustion chambers, and in particular to a pre-combustion chamber which is convenient for maintenance and replacement. Background Art

[0002] In order to improve the combustion degree of the coal powder in the boiler, most of them will use the front combustion chamber to ignite the mixture of coal powder and air to create a high temperature and high pressure environment. At this time, the combustible gases such as carbon monoxide produced by the combustion of coal powder enter the main combustion chamber to participate in the combustion, so as to achieve full combustion of coal powder.

[0003] In the prior art, multiple air supplies are generally performed into the front combustion chamber to achieve efficient combustion of coal powder in the front combustion chamber. For example, a Chinese patent with a publication number of CN203249235U discloses a coal powder front combustion chamber, including a coal powder nozzle arranged in a combustion chamber casing and a primary air inlet and an ignition device matched with the coal powder nozzle. It also includes a secondary air distribution channel connected to the combustion chamber. In this technical solution, coking in the furnace is avoided by multiple air supplies. However, as time goes by, coking will inevitably occur in the front combustion chamber. When coking occurs, manual maintenance with professional equipment is required. In order to improve the combustion efficiency, most combustion chambers also have ignition devices, flow bypass devices, etc., which makes the situation in the combustion chamber more complicated. In order to ensure safety, the gas pipeline needs to be inspected to avoid gas leakage. Therefore, the maintenance of the combustion chamber is more cumbersome. Summary of the invention

[0004] The purpose of the present invention is to provide a pre-combustion chamber which is convenient for maintenance and replacement, so as to solve the technical problems in the prior art.

[0005] The present invention provides a pre-combustion chamber which is convenient for maintenance and replacement, comprising:

[0006] A support frame, on which a combustion chamber is rotatably arranged, and one end of the combustion chamber is an open structure;

[0007] A connecting seat, the connecting seat is fixedly sleeved on the combustion chamber, the side wall of the connecting seat is provided with an annular groove, a plurality of connecting pipes distributed at equal distances are arranged on one side of the annular groove, each of the connecting pipes is arranged obliquely, and each connecting pipe passes through the inner wall of the combustion chamber;

[0008] A feeding assembly, wherein the feeding assembly is arranged on one end of the connecting seat;

[0009] Two dispersion components, the two dispersion components are symmetrically arranged about the support frame, and the two dispersion components are both adapted to the annular groove;

[0010] A power assembly, wherein the power assembly is fixed to the support frame, the power assembly is connected to the connecting seat, and the power assembly is used to drive the combustion chamber to swing back and forth;

[0011] A seat body, the seat body is slidably arranged in the combustion chamber, a piston ring is fixed to the side wall of the seat body, and the piston ring is in contact with the inner wall of the combustion chamber;

[0012] A plurality of scrapers, wherein the plurality of scrapers are fixed on the side wall of the seat body at equal distances, and each scraper is in contact with the inner wall of the combustion chamber;

[0013] An air supply component, wherein the air supply component is arranged on the side wall of the seat body and passes through the seat body;

[0014] A limiting component, the limiting component is arranged at the end of the combustion chamber, and the limiting component is used to limit the state of the seat body;

[0015] An ignition assembly is disposed through the side wall of the seat body.

[0016] Preferably, the feeding assembly comprises:

[0017] A plurality of tubes, wherein the plurality of tubes are equidistantly arranged through the end of the combustion chamber, and each end of the tube is located in the annular groove;

[0018] The annular seat is connected to a plurality of tube bodies, and a feed pipe is provided through the side wall of the annular seat.

[0019] Preferably, the dispersed assembly comprises:

[0020] A fixing frame, the fixing frame is fixed on the ground, and an electric push rod is provided through a side wall of the fixing frame;

[0021] A connecting frame, wherein the connecting frame is fixed to the telescopic end of the electric push rod;

[0022] A semicircular plate is fixed to a connecting frame, a plurality of spoilers are arranged on both sides of an inner wall of the semicircular plate, and the spoilers on both sides of the semicircular plate are staggered, and the spoiler is an "η"-shaped structure.

[0023] Preferably, the power assembly comprises:

[0024] A connecting plate, the connecting plate and the supporting frame are fixed, and a transmission shaft is rotatably arranged on the side wall of the connecting plate;

[0025] A motor, wherein the motor is fixed on the side wall of the connecting plate, and the output shaft and the transmission shaft of the motor are fixed;

[0026] A gear, wherein the gear is fixed to the end of the transmission shaft;

[0027] The gear ring is fixed on the side wall of the connecting seat and is meshed with the gear.

[0028] Preferably, the air supply assembly comprises:

[0029] A plurality of air nozzles, the plurality of air nozzles are equidistantly arranged on the side wall of the seat body, each of the air nozzles is an "L"-shaped structure, the plurality of air nozzles correspond to the plurality of connecting pipes one by one, and the output directions of the air nozzles and the connecting pipes are opposite;

[0030] A communication seat, the communication seat is connected to a plurality of gas nozzles, and a solenoid valve is provided through a side wall of the communication seat;

[0031] A hose is provided at the end of the combustion chamber through the hose.

[0032] Preferably, the limiting component comprises:

[0033] An end plate, the end plate is rotatably arranged at the end of the combustion chamber, and the end plate and the connecting plate are fixed;

[0034] A limiting frame, wherein the limiting frame is fixed on the side wall of the seat body, a through hole is opened at the end of the combustion chamber near the end plate, and the limiting frame passes through the through hole;

[0035] A plurality of bolts, each of which is rotatably connected to the end plate, and each of which is connected to the limiting frame via threads;

[0036] A circular groove, wherein the circular groove is formed on the side wall of the seat body;

[0037] A limiting rod is inserted into the circular groove.

[0038] Preferably, the ignition assembly comprises:

[0039] A gas pipe, the gas pipe being arranged through the side wall of the end plate;

[0040] A nozzle, the nozzle is arranged through the side wall of the seat body, the end opening of the nozzle is a conical structure, the end of the gas pipe is fixed with a sealing ring, and the sealing ring and the end of the nozzle are adapted, and a spark plug is arranged in the nozzle;

[0041] A sealing seat, wherein the sealing seat is fixed in the nozzle;

[0042] A mounting frame, the mounting frame is fixed in the nozzle, a first rod body is slidably inserted into a side wall of the mounting frame, a plug is provided at one end of the first rod body, and the plug is adapted to the sealing seat;

[0043] A first spring, one end of the first spring is fixed to the mounting frame, and the other end of the first spring is fixed to the plug;

[0044] A first strong magnet is fixed to the other end of the first rod.

[0045] Preferably, the ignition assembly further comprises:

[0046] A baffle, the baffle is fixed in the gas pipe, and a plurality of circular holes are opened on the side wall of the baffle;

[0047] A second rod body, the second rod body is slidably inserted on the side wall of the baffle, and a sealing plate is fixed to one end of the second rod body, and the sealing plate is used to seal the circular hole;

[0048] a second strong magnet, wherein the second strong magnet is fixed to the sealing plate;

[0049] A limiting plate, wherein the limiting plate is fixed to the other end of the second rod body, and a gap exists between the limiting plate and the gas pipe;

[0050] A second spring, wherein one end of the second spring is fixed to the baffle plate, and the other end of the second spring is fixed to the limiting plate.

[0051] Compared with the prior art, the beneficial effects of the present invention are:

[0052] (1) The present invention can realize the state of the seat body restricted by the limiting component, and then drive the combustion chamber to swing by the power component to realize the relative movement between the seat body and the combustion chamber, and then cooperate with the scraper to realize the cleaning of the inner wall of the combustion chamber. By controlling the state of the air supply component, the air pressure on the side of the seat body in the combustion chamber increases, and then the seat body can move under the action of the air pressure to clean various places in the combustion chamber.

[0053] (2) The present invention can achieve the goal of avoiding many dead corners in the combustion chamber by setting the seat body, ignition assembly and combustion chamber through the ignition assembly set on the seat body, thereby avoiding the accumulation of dust inside. During the maintenance process, the dust inside the combustion chamber can be cleaned by the relative swing between the seat body and the combustion chamber in cooperation with the scraper, without the need for other equipment, thereby reducing the difficulty of cleaning and facilitating the maintenance of the front combustion chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0055] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0056] Figure 2It is a schematic diagram of the structure of the connecting seat and the gear ring of the present invention;

[0057] Figure 3 The present invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0058] Figure 4 It is a schematic diagram of the cleaning state of the present invention;

[0059] Figure 5 It is a schematic diagram of the structure of the semicircular plate and the spoiler of the present invention;

[0060] Figure 6 It is a schematic diagram of the explosion structure of the combustion chamber and the connecting seat of the present invention;

[0061] Figure 7 It is a schematic diagram of the explosion structure of the annular seat and the connecting seat of the present invention;

[0062] Figure 8 It is a schematic diagram of the cross-sectional structure of the combustion chamber of the present invention;

[0063] Fig. 9 It is a schematic diagram of the seat body and scraper structure of the present invention;

[0064] Fig.10 It is a schematic diagram of the structure of the gas nozzle and the connecting seat of the present invention;

[0065] Fig.11 It is a schematic diagram of the cross-sectional structure of the nozzle of the present invention;

[0066] Fig.12 It is a schematic diagram of the cross-sectional structure of the gas pipe of the present invention.

[0067] Reference numerals:

[0068] 101, support frame; 102, fixing frame; 103, electric push rod; 104, connecting frame; 201, combustion chamber; 202, connecting seat; 203, semicircular plate; 204, end plate; 205, spoiler; 206, connecting pipe; 207, limiting frame; 208, bolt; 301, annular seat; 302, feed pipe; 303, pipe body; 401, gear ring; 402, gear; 403, motor; 404, transmission shaft; 405, connecting plate; 501, hose; 502, connecting seat; 503 , gas nozzle; 504, solenoid valve; 601, gas pipe; 602, nozzle; 603, sealing ring; 604, sealing seat; 605, plug; 606, mounting bracket; 607, first spring; 608, first rod body; 609, first strong magnet; 610, limiting plate; 611, baffle; 612, second spring; 613, second rod body; 614, sealing plate; 615, second strong magnet; 701, seat body; 702, piston ring; 703, scraper; 704, circular groove; 705, limiting rod. DETAILED DESCRIPTION

[0069] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0070] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0071] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0072] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] Combine the following Figures 1 to 12 As shown, an embodiment of the present invention provides a pre-combustion chamber that is convenient for maintenance and replacement, comprising:

[0075] A support frame 101, on which a combustion chamber 201 is rotatably disposed, and one end of the combustion chamber 201 is an open structure;

[0076] A connecting seat 202, the connecting seat 202 is fixedly sleeved on the combustion chamber 201, and an annular groove is provided on the side wall of the connecting seat 202, and a plurality of connecting pipes 206 distributed at equal distances are provided on one side of the annular groove, each connecting pipe 206 is inclined, and each connecting pipe 206 passes through the inner wall of the combustion chamber 201;

[0077] A feeding assembly, which is disposed on one end of the connecting seat 202;

[0078] Two dispersion components, the two dispersion components are symmetrically arranged about the support frame 101, and the two dispersion components are adapted to the annular groove;

[0079] A power assembly, the power assembly is fixed to the support frame 101, the power assembly is connected to the connecting seat 202, and the power assembly is used to drive the combustion chamber 201 to swing back and forth;

[0080] A seat body 701, the seat body 701 is slidably disposed in the combustion chamber 201, a piston ring 702 is fixed to the side wall of the seat body 701, and the piston ring 702 is in contact with the inner wall of the combustion chamber 201;

[0081] A plurality of scrapers 703, wherein the plurality of scrapers 703 are fixed on the side wall of the base body 701 at equal distances, and each scraper 703 is in contact with the inner wall of the combustion chamber 201;

[0082] An air supply component, which is disposed on the side wall of the base body 701 and passes through the base body 701;

[0083] A limiting component, which is disposed at the end of the combustion chamber 201 and is used to limit the state of the seat body 701;

[0084] The ignition assembly is disposed through the side wall of the seat body 701 .

[0085] After the coal powder enters the feeding assembly through the airflow conveying device, it is dispersed by the feeding assembly and coordinated with the dispersion assembly, so that the coal powder is mixed with the airflow in the annular groove to ensure the effect of coal powder pre-combustion;

[0086] By setting the ignition assembly on the seat body 701, a large number of dead corners in the combustion chamber 201 are avoided, thereby preventing dust from accumulating in the combustion chamber 201. During maintenance, the relative swing between the seat body 701 and the combustion chamber 201 is used in conjunction with the scraper 703 to clean the dust inside the combustion chamber 201 without the aid of other equipment, thereby reducing the difficulty of cleaning and facilitating the maintenance work of the combustion chamber 201.

[0087] Further, the feeding assembly includes:

[0088] A plurality of tube bodies 303, wherein the plurality of tube bodies 303 are equidistantly arranged through the end of the combustion chamber 201, and the end of each tube body 303 is located in the annular groove;

[0089] The annular seat 301 is connected to a plurality of tube bodies 303 , and a feed pipe 302 is provided through the side wall of the annular seat 301 .

[0090] Further, the decentralized components include:

[0091] A fixed frame 102, the fixed frame 102 is fixed on the ground, and an electric push rod 103 is provided through a side wall of the fixed frame 102;

[0092] A connecting frame 104, the connecting frame 104 is fixed on the telescopic end of the electric push rod 103;

[0093] The semicircular plate 203 is fixed to the connecting frame 104, and a plurality of spoilers 205 are arranged on both sides of the inner wall of the semicircular plate 203, and the spoilers 205 on both sides of the semicircular plate 203 are staggered, and the spoiler 205 is an "η"-shaped structure.

[0094] The pulverized coal is transported to the feed pipe 302 by the airflow conveying equipment, then enters the annular seat 301, and is finally input into the annular groove of the connecting seat 202 through the pipe body 303. At this time, the pulverized coal is blown to the spoiler 205 on the semicircular plate 203 through the pipe body 303 along with the airflow. Through the "η" shape of the spoiler 205, part of the airflow is guided to flow to the pipe body 303, disturbing the airflow in the annular groove, so that the gas and the pulverized coal can be mixed again at this time to ensure the uniform distribution of the pulverized coal in the airflow.

[0095] Furthermore, the power assembly includes:

[0096] A connecting plate 405, the connecting plate 405 and the supporting frame 101 are fixed, and a transmission shaft 404 is rotatably arranged on the side wall of the connecting plate 405;

[0097] Motor 403, the motor 403 is fixed on the side wall of the connecting plate 405, and the output shaft of the motor 403 is fixed to the transmission shaft 404;

[0098] Gear 402, gear 402 is fixed to the end of transmission shaft 404;

[0099] The gear ring 401 is fixed on the side wall of the connecting seat 202 , and the gear ring 401 is meshed with the gear 402 .

[0100] When the switch of the motor 403 is turned on, the motor 403 drives the gear 402 to rotate through the transmission shaft 404, and then cooperates with the gear ring 401 to realize the rotation of the combustion chamber 201. By controlling the rotation angle of the motor 403 and making the motor 403 reciprocate periodically, the combustion chamber 201 can swing back and forth.

[0101] Furthermore, the air supply assembly includes:

[0102] Multiple air nozzles 503, which are equidistantly arranged on the side wall of the seat body 701, each of which is an "L"-shaped structure, and the multiple air nozzles 503 correspond to the multiple connecting pipes 206 one by one, and the air nozzles 503 and the connecting pipes 206 have opposite output directions;

[0103] A connecting seat 502, the connecting seat 502 is connected to a plurality of gas nozzles 503, and a solenoid valve 504 is provided through a side wall of the connecting seat 502;

[0104] The hose 501 is disposed through the end of the combustion chamber 201 .

[0105] Since the output direction of the gas nozzle 503 is opposite to that of the connecting pipe 206, after the coal powder enters the combustion chamber 201 along with the air flow, it is dispersed by the air flow output by the gas nozzle 503, further increasing the mixing effect of the coal powder and the gas.

[0106] Further, restricted components include:

[0107] The end plate 204 is rotatably disposed at the end of the combustion chamber 201, and the end plate 204 and the connecting plate 405 are fixed;

[0108] The limiting frame 207 is fixed on the side wall of the seat body 701. A through hole is opened at the end of the combustion chamber 201 near the end plate 204, and the limiting frame 207 passes through the through hole;

[0109] A plurality of bolts 208, wherein the plurality of bolts 208 are rotatably connected to the end plate 204, and the plurality of bolts 208 are connected to the limiting frame 207 through threads;

[0110] A circular groove 704, which is formed on the side wall of the seat body 701;

[0111] The limiting rod 705 is inserted into the circular groove 704 .

[0112] Further, the ignition assembly includes:

[0113] A gas pipe 601, which is arranged through the side wall of the end plate 204;

[0114] The nozzle 602 is arranged on the side wall of the seat body 701, and the opening of the end of the nozzle 602 is a conical structure. A sealing ring 603 is fixed to the end of the gas pipe 601, and the sealing ring 603 is adapted to the end of the nozzle 602;

[0115] A sealing seat 604, the sealing seat 604 is fixed in the nozzle 602, and a spark plug is arranged in the nozzle 602;

[0116] A mounting frame 606, the mounting frame 606 is fixed in the nozzle 602, a first rod 608 is slidably inserted into the side wall of the mounting frame 606, a plug 605 is provided at one end of the first rod 608, and the plug 605 is adapted to the sealing seat 604;

[0117] A first spring 607, one end of the first spring 607 is fixed to the mounting frame 606, and the other end of the first spring 607 is fixed to the plug 605;

[0118] The first strong magnet 609 is fixed to the other end of the first rod 608 .

[0119] Furthermore, the ignition assembly also includes:

[0120] Baffle 611, baffle 611 is fixed in the gas pipe 601, and a plurality of circular holes are opened on the side wall of baffle 611;

[0121] A second rod 613, the second rod 613 is slidably inserted on the side wall of the baffle 611, and a sealing plate 614 is fixed to one end of the second rod 613, and the sealing plate 614 is used to seal the circular hole;

[0122] A second strong magnet 615, the second strong magnet 615 is fixed to the sealing plate 614;

[0123] A limiting plate 610, the limiting plate 610 is fixed to the other end of the second rod body 613, and there is a gap between the limiting plate 610 and the gas pipe 601;

[0124] The second spring 612 has one end fixed to the baffle 611 , and the other end fixed to the limiting plate 610 .

[0125] After the end plate 204 and the limiting frame 207 are fixed, the limiting frame 207 is close to the end plate 204, so that the nozzle 602 is close to the gas pipe 601. When the nozzle 602 is close to the gas pipe 601, under the action of the sealing ring 603 and the tapered structure at the end of the nozzle 602, the gas pipe 601 and the nozzle 602 are sealed. Under the action of magnetic force, the first strong magnet 609 and the second strong magnet 615 are close to each other, thereby driving the plug 605 away from the sealing seat 604 and driving the sealing plate 614 away from the baffle 611, so that the gas can pass through the gap between the gas pipe 601 and the limiting plate 610, the round hole on the baffle 611 and the sealing Seat 604 is engaged with the end plate 204 to allow the gas to be output through the nozzle 602. At this time, the spark plug switch is turned on to ignite the gas, and the pulverized coal is ignited by the burning gas to achieve pre-combustion of the pulverized coal. Conversely, when the end plate 204 and the limiting frame 207 are separated, the adsorption force between the first strong magnet 609 and the second strong magnet 615 is reduced. At this time, under the action of the first spring 607, the plug 605 is close to the sealing seat 604, and then the nozzle 602 is sealed by the plug 605 and the sealing seat 604. Under the action of the second spring 612, the sealing plate 614 is close to the baffle 611, and the gas pipe 601 is sealed by the sealing plate 614 and the baffle 611.

[0126] The specific working method is: when in use, first check whether the seat body 701 is at the end of the combustion chamber 201, pull the limiting rod 705 out of the circular groove 704, and then connect the end of the combustion chamber 201 with the main combustion chamber, and then through the operation of the electric push rod 103, the semicircular plate 203 enters the annular groove, and the two semicircular plates 203 conflict with each other to make the two semicircular plates 203 sealed, and both ends of the two semicircular plates 203 conflict with the inner wall of the annular groove, so that the annular groove is sealed by the two semicircular plates 203, and the air flow conveying equipment for conveying coal powder is connected with the feed pipe 302, the high-pressure air pump is connected with the hose 501, and the gas is connected with the gas pipe 601, and finally the fixing between the limiting frame 207 and the end plate 204 is realized by the bolt 208;

[0127] The pulverized coal is transported to the feed pipe 302 by the air flow conveying equipment, then enters the annular seat 301, and finally input into the annular groove of the connecting seat 202 through the pipe body 303. At this time, the pulverized coal is blown to the spoiler 205 on the semicircular plate 203 through the pipe body 303 along with the air flow. The "η" shape of the spoiler 205 guides part of the air flow to the pipe body 303, disturbing the air flow in the annular groove, so that the gas and the pulverized coal can be mixed again at this time to ensure the uniform distribution of the pulverized coal in the air flow;

[0128] The switch of the motor 403 is turned on. When the motor 403 is working, the gear 402 is driven to rotate through the transmission shaft 404, and then the gear ring 401 is cooperated to realize the rotation of the combustion chamber 201. By controlling the rotation angle of the motor 403 and making the motor 403 rotate periodically, the combustion chamber 201 can swing back and forth. At this time, the tube body 303 also swings accordingly, so that the airflow output by the tube body 303 enters between the two spoilers 205 on one side of the semicircular plate 203, that is, at this time, the airflow output by the tube body 303 blows onto the spoiler 205 on the other side of the semicircular plate 203, and then the multiple staggered spoilers 205 on both sides of the semicircular plate 203 make the airflow in each place in the annular groove disturbed, so as to ensure the dispersion degree of coal powder in the gas;

[0129] The pulverized coal follows the air flow through the connecting pipe 206 and enters the combustion chamber 201. At this time, the switch of the high-pressure air pump is turned on. When the high-pressure air pump is working, the gas is injected into the space on the side of the seat body 701 in the combustion chamber 201 through the hose 501. The switch of the solenoid valve 504 is turned on. The gas there enters the connecting seat 502 through the solenoid valve 504 and is then output through each gas nozzle 503. Since the output direction of the gas nozzle 503 is opposite to that of the connecting pipe 206, the pulverized coal enters the combustion chamber 201 with the air flow and is dispersed by the air flow output by the gas nozzle 503, which further increases the mixing effect of the pulverized coal and the gas.

[0130] The gas outputted by the multiple gas nozzles 503 causes a spiral airflow to appear in the combustion chamber 201, so that the airflow and coal powder can flow toward the opening of the combustion chamber 201;

[0131] After the end plate 204 and the limiting frame 207 are fixed, the limiting frame 207 is close to the end plate 204, so that the nozzle 602 is close to the gas pipe 601. When the nozzle 602 is close to the gas pipe 601, under the action of the sealing ring 603 and the tapered structure at the end of the nozzle 602, the gas pipe 601 and the nozzle 602 are sealed. Under the action of magnetic force, the first strong magnet 609 and the second strong magnet 615 are close to each other, so as to drive the plug 605 away from the sealing seat 604 and the sealing plate 614 away from the baffle 611, so that the gas can pass through the gap between the gas pipe 601 and the limiting plate 610, the circular hole on the baffle 611 and the sealing seat 604, so that the gas can be output through the nozzle 602. At this time, the switch of the spark plug is turned on to ignite the gas, and the coal powder is ignited by the burning gas to achieve the pre-combustion of the coal powder.

[0132] During maintenance, the two electric push rods 103 drive the two semicircular plates 203 to move away from each other, so that the two semicircular plates 203 are away from the connecting seat 202. At this time, the inside of the annular groove can be cleaned, and the spoiler 205 on the semicircular plate 203 can be cleaned. Since the semicircular plate 203 can be directly away from the connecting seat 202, the cleaning difficulty is greatly reduced.

[0133] When the interior of the combustion chamber 201 is maintained, the combustion chamber 201 is separated from the main combustion chamber, and the limiting rod 705 is inserted into the circular groove 704 through the opening of the combustion chamber 201. The limiting rod 705 is then fixed with a suitable tool, and then the combustion chamber 201 is swung by the operation of the motor 403. At this time, the seat body 701 is restricted by the limiting rod 705 and the circular groove 704 and cannot swing. Therefore, the scraper 703 on the seat body 701 and the inner wall of the combustion chamber 201 are relatively displaced, so that the dust caked on the inner wall of the combustion chamber 201 is cleaned by the scraper 703, and the dust cleaned is discharged from the combustion chamber 201 along with the air flow in cooperation with the operation of the high-pressure air pump;

[0134] Then, the switch of the solenoid valve 504 is closed. As the high-pressure air pump continues to work, the air pressure on the side of the seat body 701 in the combustion chamber 201 continues to rise. At this time, the position of the limiting rod 705 is moved, and the seat body 701 is pushed to move a certain distance along the combustion chamber 201 under the action of the air pressure. The scraper 703 is used again to clean the inner wall of the combustion chamber 201, thereby reducing the difficulty of maintenance of the combustion chamber 201.

[0135] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pre-combustion chamber that is easy to maintain and replace, characterized in that: include: A support frame (101), wherein a combustion chamber (201) is rotatably arranged on the support frame (101), and one end of the combustion chamber (201) is an open structure; A connecting seat (202), the connecting seat (202) being fixedly sleeved on the combustion chamber (201), the side wall of the connecting seat (202) being provided with an annular groove, a plurality of connecting pipes (206) being arranged at equal distances on one side of the annular groove, each of the connecting pipes (206) being arranged at an angle, and each of the connecting pipes (206) passing through the inner wall of the combustion chamber (201); A material supply assembly, the material supply assembly being arranged on one end of the connecting seat (202); Two dispersion components, the two dispersion components are symmetrically arranged about the support frame (101), and the two dispersion components are both adapted to the annular groove; A power assembly, the power assembly and the support frame (101) are fixed, the power assembly and the connection seat (202) are connected, and the power assembly is used to drive the combustion chamber (201) to swing back and forth; A seat body (701), the seat body (701) being slidably disposed in the combustion chamber (201), a piston ring (702) being fixed to a side wall of the seat body (701), and the piston ring (702) is in contact with an inner wall of the combustion chamber (201); A plurality of scrapers (703), wherein the plurality of scrapers (703) are fixed on the side wall of the base body (701) at equal distances, and each scraper (703) is in contact with the inner wall of the combustion chamber (201); An air supply component, the air supply component being arranged on a side wall of the seat body (701), and the air supply component passing through the seat body (701); A limiting component, the limiting component being arranged at the end of the combustion chamber (201), and the limiting component being used to limit the state of the seat body (701); An ignition assembly, the ignition assembly being arranged through the side wall of the seat body (701); The dispersed components include: A fixed frame (102), the fixed frame (102) being fixed on the ground, and an electric push rod (103) being provided through a side wall of the fixed frame (102); A connecting frame (104), wherein the connecting frame (104) is fixed on the telescopic end of the electric push rod (103); A semicircular plate (203) is fixed to a connecting frame (104), a plurality of spoilers (205) are arranged on both sides of an inner wall of the semicircular plate (203), and the spoilers (205) on both sides of the semicircular plate (203) are staggered, and the spoilers (205) are of an "η"-shaped structure.

2. A pre-combustion chamber that is easy to maintain and replace according to claim 1, characterized in that: The feeding assembly comprises: A plurality of tube bodies (303), wherein the plurality of tube bodies (303) are arranged at equal distances through the end of the combustion chamber (201), and the end of each tube body (303) is located in the annular groove; An annular seat (301), the annular seat (301) being in communication with a plurality of tube bodies (303), and a feed pipe (302) being provided through a side wall of the annular seat (301).

3. The pre-combustion chamber that is easy to maintain and replace according to claim 1 is characterized in that: The power assembly comprises: A connecting plate (405), the connecting plate (405) and the supporting frame (101) are fixed, and a transmission shaft (404) is rotatably provided on a side wall of the connecting plate (405); A motor (403), wherein the motor (403) is fixed on a side wall of the connecting plate (405), and an output shaft of the motor (403) and a transmission shaft (404) are fixed; A gear (402), wherein the gear (402) is fixed to the end of the transmission shaft (404); A gear ring (401), wherein the gear ring (401) is fixed on a side wall of the connecting seat (202), and the gear ring (401) is meshed with the gear (402).

4. The pre-combustion chamber that is easy to maintain and replace according to claim 1 is characterized in that: The air supply assembly comprises: A plurality of air nozzles (503), wherein the plurality of air nozzles (503) are equidistantly arranged on the side wall of the seat body (701), each of the air nozzles (503) is an "L"-shaped structure, the plurality of air nozzles (503) correspond to the plurality of connecting tubes (206) one by one, and the output directions of the air nozzles (503) and the connecting tubes (206) are opposite; A communication seat (502), the communication seat (502) being in communication with a plurality of air nozzles (503), and a solenoid valve (504) being provided through a side wall of the communication seat (502); A hose (501) is provided through the end of the combustion chamber (201).

5. The pre-combustion chamber that is easy to maintain and replace according to claim 3 is characterized in that: The restriction components include: An end plate (204), wherein the end plate (204) is rotatably disposed at an end of the combustion chamber (201), and the end plate (204) and the connecting plate (405) are fixed; A limiting frame (207), the limiting frame (207) being fixed on a side wall of the seat body (701), a through hole being provided at an end of the combustion chamber (201) near the end plate (204), and the limiting frame (207) passing through the through hole; A plurality of bolts (208), each of the plurality of bolts (208) being rotatably connected to the end plate (204), and each of the plurality of bolts (208) being connected to the limiting frame (207) via threads; A circular groove (704), wherein the circular groove (704) is formed on a side wall of the seat body (701); A limiting rod (705) is inserted into the circular groove (704).

6. A pre-combustion chamber that is easy to maintain and replace according to claim 5, characterized in that: The ignition assembly comprises: A gas pipe (601), wherein the gas pipe (601) is arranged through the side wall of the end plate (204); A nozzle (602), the nozzle (602) being arranged through the side wall of the seat body (701), the end opening of the nozzle (602) being a conical structure, a sealing ring (603) being fixed to the end of the gas pipe (601), and the sealing ring (603) and the end of the nozzle (602) being adapted to each other, and a spark plug being arranged in the nozzle (602); A sealing seat (604), wherein the sealing seat (604) is fixed in the nozzle (602); A mounting frame (606), the mounting frame (606) being fixed in the nozzle (602), a first rod body (608) being slidably inserted into a side wall of the mounting frame (606), a plug (605) being provided at one end of the first rod body (608), and the plug (605) and the sealing seat (604) being adapted to fit; A first spring (607), wherein one end of the first spring (607) is fixed to the mounting frame (606), and the other end of the first spring (607) is fixed to the plug (605); A first strong magnet (609), wherein the first strong magnet (609) is fixed to the other end of the first rod body (608).

7. A pre-combustion chamber that is easy to maintain and replace according to claim 6, characterized in that: The ignition assembly also includes: A baffle (611), the baffle (611) being fixed in the gas pipe (601), and a side wall of the baffle (611) being provided with a plurality of circular holes; A second rod body (613), the second rod body (613) being slidably inserted on the side wall of the baffle (611), a sealing plate (614) being fixed to one end of the second rod body (613), the sealing plate (614) being used to seal the circular hole; A second strong magnet (615), wherein the second strong magnet (615) is fixed to the sealing plate (614); A limiting plate (610), wherein the limiting plate (610) is fixed to the other end of the second rod body (613), and a gap exists between the limiting plate (610) and the gas pipe (601); A second spring (612), wherein one end of the second spring (612) is fixed to the baffle plate (611), and the other end of the second spring (612) is fixed to the limiting plate (610).

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