CN111706844A

CN111706844A - Civil high-efficiency heat accumulating type combustion boiler

Info

Publication number: CN111706844A
Application number: CN202010395601.2A
Authority: CN
Inventors: 杨思国
Original assignee: Individual
Current assignee: Foshan Daodejin Electromechanical Equipment Co Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-09-25
Anticipated expiration: 2040-05-12
Also published as: CN111706844B

Abstract

The invention discloses a civil high-efficiency heat accumulating type combustion boiler, belonging to the field of civil boilers, which utilizes less heat insulating materials to achieve higher heat insulating capability, namely saving cost, so that elastic heat insulating fibers are not easy to separate from a fixed pocket net or displace per se, and the normal heat insulating effect of a heat insulating layer is not easy to influence, when a boiler shell is in a standby state, the temperature of steam in a steam area is gradually reduced, the pressure intensity of the steam in the steam area is reduced along with the reduction of the temperature of the steam, at the moment, a sealing cover is jacked up under the action of a first compression spring in a compression state until a through hole is exposed into the steam area, at the moment, a heat energy supplementing pipe can input the steam into the steam area through the through hole, the temperature and the pressure intensity of the steam in the steam area are increased until the sealing cover is pressed back into a heat energy supplementing pipe by the steam pressure, the energy consumption required when the boiler shell is restarted is reduced.

Description

Civil high-efficiency heat accumulating type combustion boiler

Technical Field

The invention relates to the field of civil boilers, in particular to a civil efficient heat accumulating type combustion boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, the boiler outputs steam, high-temperature water or organic heat carrier with certain heat energy, and the boiler is divided into a boiler part and a furnace part. The boiler is a pressure-receiving component for containing water and steam, heating, vaporizing and separating water from steam, and the furnace is a place for burning fuel or releasing heat by other heat energy, and comprises combustion equipment, a combustion chamber, a heat-releasing flue and the like. The boiler and the furnace are subjected to a heat conversion process, and the interface of heat release and heat absorption is called a heating surface. The boiler heats the water to steam. Besides the boiler and the furnace, the boiler also comprises auxiliary equipment such as a framework, a platform, an escalator, combustion, slag discharge, a smoke duct, a pipeline, a furnace wall and the like.

Boiler is often used for the thermal power station, boats and ships, locomotive and industrial and mining enterprises, mainly be the industrial field, once industrial boiler is worked, can last work for a long time usually, can not shut down midway basically, consequently only need do the cold-proof of self to industrial boiler usually, promote the energy conversion rate of boiler, can the efficiency of energy utilization just can increase industrial boiler by a wide margin, compare in industrial boiler, civilian boiler is usually convenient for people's daily life or working life, like the boiler that public boiling water was used etc., civilian boiler has obvious ageing usually, work at certain specific point promptly, and shut down the standby when other, consequently compare in industrial boiler, its thermal insulation performance is more important, make the boiler can not drop too much at standby in-process furnace temperature, heat energy consumption when reducing the boiler and restarting.

The existing boiler heat-insulating layer is easy to cause the phenomenon of accumulation and agglomeration of heat-insulating materials in the using process, so that the normal heat-insulating effect of the heat-insulating layer is easy to influence, regular maintenance or replacement is needed, and the normal working efficiency of the boiler is easy to influence.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a civil efficient heat accumulating type combustion boiler which can realize that the phenomenon of material accumulation and agglomeration is not easy to occur in the use process of a boiler heat insulating layer, the normal heat insulating effect of the heat insulating layer is not easy to influence, the maintenance and repair or replacement is greatly reduced, and the normal working efficiency of the boiler is not easy to influence.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A civil efficient heat accumulating type combustion boiler comprises a boiler shell, wherein an inner cavity is formed in the boiler shell, a steam outlet pipe and a feed pipe are fixedly connected to the side wall of the boiler shell, the steam outlet pipe and the feed pipe penetrate through the side wall of the boiler shell to enable the inner cavity of the boiler shell to be communicated with the outside, a separation plate is fixedly connected between the side walls of the inner cavity of the boiler shell and divides the inner cavity of the boiler shell into a fuel combustion area and a steam area, the steam area is located on the upper side of the fuel combustion area, the steam outlet pipe and the feed pipe are located in the steam area, a heat insulation cavity is formed in the boiler shell and located on the outer side of the inner cavity, maintenance holes are formed in the side wall of the boiler shell in a chiseling mode, the heat insulation cavity is communicated with the outside through the maintenance holes, a turnover grid plate matched with maintenance holes is hinged inside the maintenance holes, and fixed pocket net and heat preservation chamber outer wall fixed connection, pack the inboard that the heat preservation fibre is located fixed pocket net, fixed pocket net surface is rich in fine hair, pack the heat preservation fibre and contain a plurality of elastic heat-insulating fiber, two adjacent elastic heat-insulating fiber entangle each other and twine together, form a plurality of inclosed thermal-insulated spaces, elastic heat-insulating fiber entangles with fixed pocket net surface fine hair and twines and link together, makes elastic heat-insulating fiber be difficult for taking place the displacement with fixed pocket net separation or self to realize that the boiler heat preservation is difficult for appearing the material in the use and pile up the phenomenon of reuniting, the normal heat preservation effect of difficult influence heat preservation reduces maintenance repair or change by a wide margin, is difficult for influencing the normal work efficiency of boiler.

Further, it has the fuel to put in the mouth to open on boiler shell's the lateral wall, and fuel combustion area puts in the mouth through fuel and is linked together with the external world, fuel is put in a mouthful notch department hinge joint and is connected with self assorted baffle, be connected with sealed the pad between baffle and the fuel is put in a mouthful lateral wall, sealed the downside that is located the baffle and puts in a mouthful lateral wall fixed connection with fuel, sealed pad can increase the leakproofness that fuel was put in between mouth and the baffle, increases the heat preservation effect in fuel combustion area.

Further, boiler shell chooses magnetic material to make for use, it has adsorption magnet to inlay on the baffle, and the baffle can adsorb with adsorption magnet mutually through boiler shell, makes things convenient for the staff to add fuel in the fuel combustion area.

Furthermore, fixedly connected with heat energy supply pipe on the boiler shell lateral wall, and one section of heat energy supply pipe runs through the boiler shell lateral wall and extends to in the steam district, and the one end that the boiler shell was kept away from to heat energy supply pipe is linked together with hot steam storage device, and wherein hot steam storage device is the electrothermal small-size device, can utilize less electric energy to let in hot steam for the steam district.

Furthermore, a sealing cover is inserted at one end of the heat energy supplementing pipe, which is positioned in the steam area, a through hole is cut in the side wall of the sealing cover, a pair of limiting grooves are cut in a section of the steam area, which is close to the sealing cover, a limiting rod is fixedly connected to a section of the sealing cover, which is close to the heat energy supplementing pipe, and the limiting rod is inserted in the limiting groove, a limiting plate is fixedly connected to one end of the limiting rod, which is far away from the sealing cover, a limiting ring is fixedly connected to the notch of the limiting groove, a first compression spring is fixedly connected between the limiting plate and the limiting ring, and the first compression spring is sleeved outside the limiting rod, when the boiler shell is in a standby state, the temperature of steam in the steam area gradually decreases, the equation of gas state can be known, when the volume in the boiler shell is fixed, the pressure in the steam area decreases with the decrease of the temperature, and when, under the effect of the first compression spring in a compressed state, the sealing cover can be jacked up until the through hole is exposed in the steam area, at the moment, the heat energy supplementing pipe can input steam into the steam area through the through hole, the temperature and the pressure of the steam in the steam area are increased until the sealing cover is pressed back into the heat energy supplementing pipe again by the steam pressure in the steam area, the temperature of the steam in the steam area can be maintained by a small amount of electric energy, the relatively high temperature can be always kept in the standby process of the boiler shell, and the energy consumed when the boiler shell is restarted is reduced.

Furthermore, the spacing ring includes the go-between, go-between and spacing groove threaded connection, it has a plurality of dismantlement grooves to cut on the go-between, makes things convenient for technical staff to dismantle the spacing ring, maintains and repairs each device in the spacing inslot.

Furthermore, a wear-resistant ring is connected between the connecting ring and the limiting rod and fixedly connected with the connecting ring, so that the wear between the connecting ring and the limiting rod can be greatly reduced by the wear-resistant ring, and the connection between the limiting rod and the limiting ring is not easy to shake.

Further, a prefabricated groove is drilled on the inner wall of the heat preservation cavity, a movable groove is drilled on a groove bottom plate of the prefabricated groove, a straight rod is inserted in the movable groove, one end, far away from the movable groove, of the straight rod penetrates through the prefabricated groove and extends to the outer side of the prefabricated groove, a limiting ring is fixedly connected to a notch of the movable groove, a push plate is fixedly connected to one end of the straight rod and is positioned in the movable groove, a second compression spring is fixedly connected between the push plate and the limiting ring and is sleeved on the outer side of the straight rod, a plurality of barbs are fixedly connected to one section, far away from the push plate, of the straight rod, and the barbs and the fixed pocket net are hooked together, so that the inner wall of the heat preservation cavity can be tightly attached to the fixed pocket net, and the straight rod and the barbs can be rebounded back to the prefabricated groove under the action of the second compression spring in a compression state after the fixed pocket net is detached, the fixed pocket net of the hook post is prevented from being detached easily to cause troubles.

Further, it has the cavity to chisel in the barb, increases the elasticity of barb self, is difficult for damaging fixed pocket net at fixed pocket net dismantlement in-process.

Further, activity groove tank bottom plate fixedly connected with electro-magnet, the push pedal chooses for use magnet to make, and the electro-magnet is homopolar with the one side that the push pedal is close to each other, when the fixed pocket net of reinstallation, starts the electro-magnet, and the repulsion force can be with straight-bar and barb top department prefabricated groove between push pedal and the electro-magnet, the installation of the fixed pocket net of being convenient for.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

the scheme utilizes less heat-insulating materials to achieve higher heat-insulating capacity, thereby saving cost, greatly reducing the self weight of the fixed pocket net, reducing the requirement on supporting strength required by a boiler shell, ensuring that elastic heat-insulating fibers are not easy to separate from the fixed pocket net or displace per se, realizing that the phenomenon of material accumulation and agglomeration is not easy to occur in the use process of the boiler heat-insulating layer, the normal heat-insulating effect of the heat-insulating layer is not easy to influence, the maintenance and repair or the replacement is greatly reduced, the normal working efficiency of the boiler is not easy to influence, when the boiler shell is in a standby state, the temperature of steam in a steam area is gradually reduced, the pressure of the steam in the steam area is reduced along with the reduction of the temperature of the steam, when the pressure of the steam in the steam area is reduced to a certain degree, the sealing cover is jacked up under the action of the first compression spring in a compression state until the through hole is exposed in the steam area, at the moment, increase the temperature and the pressure of steam in the steam district, until sealed lid again by steam pressure in the steam district pressure back to in the heat energy supply pipe, can utilize a small amount of electric energy to maintain the temperature of steam in the steam district, can keep relatively higher temperature throughout making boiler shell standby in-process, the energy of required consumption when reducing boiler shell restart, and through straight-bar and barb that set up at the heat preservation intracavity wall, can conveniently fix the installation and the dismantlement of pocket net, the technical staff of being convenient for maintains the repair.

Drawings

FIG. 1 is a schematic view of the main structure of a boiler according to the present invention;

FIG. 2 is a front cross-sectional view of the boiler of the present invention;

FIG. 3 is a schematic diagram of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic diagram of the structure of FIG. 2 at B in accordance with the present invention;

FIG. 5 is a partial schematic view of the barb of the anchor net of the present invention;

FIG. 6 is a partial structural view of the barb of the fastening net of the present invention after its removal;

FIG. 7 is a schematic view of a stop collar according to the present invention.

The reference numbers in the figures illustrate:

1 boiler shell, 2 division plates, 3 fuel combustion areas, 4 steam areas, 5 turnover grid plates, 6 steam outlet pipes, 7 heat energy supplement pipes, 8 feeding pipes, 9 fuel input openings, 10 baffle plates, 11 sealing gaskets, 12 adsorption magnets, 13 sealing covers, 14 through holes, 15 limiting grooves, 16 limiting rods, 17 limiting plates, 18 first compression springs, 19 limiting rings, 1901 connecting rings, 1902 dismounting grooves, 1903 wear-resistant rings, 20 fixing nets, 21 filling heat-preservation fibers, 22 prefabricated grooves, 23 movable grooves, 24 straight rods, 25 barbs, 26 push plates, 27 limiting rings, 28 second compression springs and 29 electromagnets.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, a civil efficient heat accumulating type combustion boiler comprises a boiler shell 1 having an inner cavity bored therein, a steam outlet pipe 6 and a feed pipe 8 fixedly connected to a side wall of the boiler shell 1, and both the steam outlet pipe 6 and the feed pipe 8 penetrate through the side wall of the boiler shell 1 to communicate the inner cavity of the boiler shell 1 with the outside, wherein the steam outlet pipe 6 is a steam outlet, the feed pipe 8 is a water replenishing port, and one ends of the steam outlet pipe 6 and the feed pipe 8, which are far away from the boiler shell 1, are respectively communicated with other corresponding device structures to meet the normal use requirements of the boiler shell 1, which is a well-known technique of a person skilled in the art, so that a detailed description is not necessary, a partition plate 2 is fixedly connected between the side walls of the inner cavity of the boiler shell 1, the partition plate 2 divides the inner cavity of the boiler shell 1 into a fuel combustion region 3 and a, the steam outlet pipe 6 and the feed pipe 8 are both positioned in the steam area 4, a heat preservation cavity is drilled in the boiler shell 1 and is positioned at the outer side of the inner cavity, a maintenance hole is drilled in the side wall of the boiler shell 1 and is communicated with the outside through the maintenance hole, the maintenance hole is hinged with a turnover grid plate 5 matched with the maintenance hole, the boiler shell 1 is fixedly connected with the turnover grid plate 5 through a buckle, the heat preservation cavity is filled with a fixed pocket net 20 and filled heat preservation fibers 21, the fixed pocket net 20 is fixedly connected with the outer wall of the heat preservation cavity, the filled heat preservation fibers 21 are positioned at the inner side of the fixed pocket net 20, the surface of the fixed pocket net 20 is rich in fluff, the filled heat preservation fibers 21 comprise a plurality of elastic heat insulation fibers, two adjacent elastic heat insulation fibers are intertwined with each other to form a plurality of closed heat insulation spaces, the heat insulation spaces are not communicated with each other, and a small amount of heat, the cost is practiced thrift promptly, also reducing fixed pocket net 20 self weight by a wide margin, reduce the required support intensity demand of boiler shell 1, elasticity thermal insulation fibre links together with fixed pocket net 20 surface fine hair entanglement, make elasticity thermal insulation fibre be difficult for taking place the displacement with fixed pocket net 20 separation or self, in order to realize that the boiler heat preservation is difficult for appearing the material in the use and pile up the phenomenon of reunion, the normal heat preservation effect of difficult influence heat preservation, reduce to maintain by a wide margin and repair or change, the normal work efficiency of difficult influence boiler.

Referring to fig. 2-3, a fuel feeding port 9 is cut on a side wall of a boiler housing 1, the fuel combustion area 3 is communicated with the outside through the fuel feeding port 9, a baffle 10 matched with the fuel feeding port 9 is hinged at a notch of the fuel feeding port 9, a sealing gasket 11 is connected between the baffle 10 and the side wall of the fuel feeding port 9, the sealing gasket 11 is located at the lower side of the baffle 10 and is fixedly connected with the side wall of the fuel feeding port 9, the sealing gasket 11 can increase the sealing performance between the fuel feeding port 9 and the baffle 10 and increase the heat preservation effect of the fuel combustion area 3, the boiler housing 1 is made of a magnetic material, an adsorption magnet 12 is embedded on the baffle 10, and the baffle 10 can be adsorbed at a position shown by a dotted line in fig. 2 through the boiler housing 1 and the adsorption magnet 12, thereby facilitating a worker to add fuel into the fuel combustion.

Referring to fig. 4 and 7, a heat energy supplementing pipe 7 is fixedly connected to a side wall of a boiler housing 1, a section of the heat energy supplementing pipe 7 penetrates through the side wall of the boiler housing 1 and extends into a steam zone 4, one end of the heat energy supplementing pipe 7, which is far away from the boiler housing 1, is communicated with a hot steam storage device, wherein the hot steam storage device is an electric heating small device, hot steam can be introduced into the steam zone 4 by using less electric energy, a sealing cover 13 is inserted into one end of the heat energy supplementing pipe 7, which is located in the steam zone 4, a through hole 14 is formed in a side wall of the sealing cover 13, a pair of limiting grooves 15 are formed in a section of the steam zone 4, which is close to the sealing cover 13, a limiting rod 16 is fixedly connected to a section of the sealing cover 13, which is close to the heat energy supplementing pipe 7, the limiting rod 16 is inserted into the limiting groove 15, a limiting plate 17 is fixedly, a first compression spring 18 is fixedly connected between the limit plate 17 and the limit ring 19, the first compression spring 18 is sleeved outside the limit rod 16, when the boiler shell 1 is in a standby state, the temperature of steam in the steam zone 4 is gradually reduced, as can be known from a gas state equation, when the volume in the boiler shell 1 is fixed, the pressure of the steam in the steam zone 4 is reduced along with the reduction of the temperature of the steam, when the pressure of the steam in the steam zone 4 is reduced to a certain degree, the sealing cover 13 is jacked up under the action of the first compression spring 18 in a compressed state until the through hole 14 is exposed in the steam zone 4, at this time, the heat energy supplement pipe 7 can input the steam into the steam zone 4 through the through hole 14, the temperature and the pressure of the steam in the steam zone 4 are increased until the sealing cover 13 is pressed back into the heat energy supplement pipe 7 again by the pressure of the steam in the steam zone 4, and the temperature of the steam in the steam zone 4 can be maintained, make boiler shell 1 stand-by in-process can keep relatively higher temperature throughout, reduce the energy that boiler shell 1 consumed when restarting, spacing ring 19 includes go-between 1901, go-between 1901 and spacing groove 15 threaded connection, it has a plurality of dismantlement grooves 1902 to cut on the go-between 1901, make things convenient for technical staff to dismantle spacing ring 19, maintain each device in the spacing groove 15 and repair, be connected with wear-resisting ring 1903 between go-between 1901 and the gag lever post 16, and wear-resisting ring 1903 and go-between 1901 and go-between 1 fixed connection, wear-resisting ring 1903 can reduce the wearing and tearing between go-between 1901 and the gag lever post 16 by a wide margin, make the connection between 16 gag lever posts and 19 difficult appearance of rocking.

Referring to fig. 5, a prefabricated groove 22 is cut on the inner wall of the thermal insulation cavity, a movable groove 23 is cut on the bottom plate of the prefabricated groove 22, a straight rod 24 is inserted in the movable groove 23, one end of the straight rod 24, which is far away from the movable groove 23, penetrates through the prefabricated groove 22 and extends to the outer side of the prefabricated groove 22, a stop ring 27 is fixedly connected to the notch of the movable groove 23, a push plate 26 is fixedly connected to one end of the straight rod 24, the push plate 26 is located in the movable groove 23, a second compression spring 28 is fixedly connected between the push plate 26 and the stop ring 27, the second compression spring 28 is sleeved on the outer side of the straight rod 24, a plurality of barbs 25 are fixedly connected to a section of the straight rod 24, which is far away from the push plate 26, the barbs 25 are hooked with the fixed pocket net 20, the barbs 25 can hook the fixed pocket 20, so that the fixed pocket 20 can be tightly attached to the inner wall of the thermal insulation cavity, and after the fixed, will bounce back straight-bar 24 and barb 25 to the position shown in fig. 6 again, it is difficult to dismantle fixed pocket net 20 of hook post and causes trouble to fixed pocket net 20 to avoid again, it has the cavity to open in the barb 25, increase the elasticity of barb 25 self, be difficult for dismantling fixed pocket net 20 at fixed pocket net 20 in-process, 23 tank bottom boards fixedly connected with electro-magnet 29 in activity groove, push pedal 26 chooses magnet for use and makes, and the one side that electro-magnet 29 and push pedal 26 are close to each other is homopolar, when installing fixed pocket net 20 again, start electromagnet 29, repulsive force can push back straight-bar 24 and barb 25 to the position shown in fig. 5 between push pedal 26 and the electro-magnet 29, be convenient for fixed pocket net 20 to install.

The scheme utilizes less heat-insulating materials to achieve higher heat-insulating capacity, thereby saving cost, greatly reducing the self weight of the fixed pocket net 20, reducing the requirement on supporting strength required by the boiler shell 1, ensuring that elastic heat-insulating fibers are not easy to separate from the fixed pocket net 20 or to displace per se, realizing that the phenomenon of material accumulation and agglomeration is not easy to occur in the use process of the boiler heat-insulating layer, the normal heat-insulating effect of the heat-insulating layer is not easy to influence, greatly reducing maintenance and repair or replacement, and not easily influencing the normal working efficiency of the boiler, when the boiler shell 1 is in a standby state, the temperature of steam in the steam zone 4 is gradually reduced, the pressure of the steam in the steam zone 4 is reduced along with the reduction of the temperature of the steam, when the pressure of the steam in the steam zone 4 is reduced to a certain degree, the sealing cover 13 is jacked up under the action of the first compression spring 18 in a compression state until the through hole, at this moment, the heat energy supplementing pipe 7 can input steam into the steam area 4 through the through hole 14, the temperature and the pressure of the steam in the steam area 4 are increased, until the sealing cover 13 is pressed back into the heat energy supplementing pipe 7 by the steam pressure in the steam area 4 again, the temperature of the steam in the steam area 4 can be maintained by a small amount of electric energy, so that the relatively high temperature can be kept in the standby process of the boiler shell 1 all the time, the energy required to be consumed when the boiler shell 1 is restarted is reduced, and the straight rod 24 and the barb 25 which are arranged on the inner wall of the heat insulation cavity can facilitate the installation and the disassembly of the fixed pocket net 20, and the maintenance and repair of technicians are facilitated.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a civil high-efficient heat accumulation formula combustion boiler, has seted up the inner chamber including boiler shell (1), fixedly connected with steam outlet pipe (6) and inlet pipe (8) on boiler shell (1) lateral wall, and steam outlet pipe (6), inlet pipe (8) all run through boiler shell (1) lateral wall and make the inner chamber and the external world of boiler shell (1) be linked together, fixedly connected with division board (2) between the inner chamber lateral wall of boiler shell (1), division board (2) divide into fuel combustion district (3) and steam zone (4) two parts with the inner chamber of boiler shell (1), and steam zone (4) are located the upside of fuel combustion district (3), and steam outlet pipe (6) and inlet pipe (8) all are located steam zone (4), its characterized in that: a heat preservation cavity is chiseled in the boiler shell (1) and is positioned at the outer side of the inner cavity, a maintenance hole is chiseled on the side wall of the boiler shell (1), the heat preservation cavity is communicated with the outside through a maintenance hole, a turnover grid plate (5) matched with the maintenance hole is hinged in the maintenance hole, the heat preservation cavity is filled with a fixed pocket net (20) and filled with heat preservation fibers (21), the fixed pocket net (20) is fixedly connected with the outer wall of the heat preservation cavity, the filling heat preservation fiber (21) is positioned at the inner side of the fixed pocket net (20), the surface of the fixed pocket net (20) is rich in fluff, the filling heat-preservation fiber (21) comprises a plurality of elastic heat-insulation fibers, two adjacent elastic heat-insulation fibers are intertwined with each other to form a plurality of closed heat-insulation spaces, the elastic heat insulation fibers are entangled with fluff on the surface of the fixed pocket net (20).

2. The civil high-efficiency regenerative combustion boiler as set forth in claim 1, wherein: cut on the lateral wall of boiler shell (1) and have fuel to put in mouthful (9), and fuel combustion area (3) are put in mouthful (9) through fuel and are linked together with the external world, fuel is put in mouthful (9) notch department hinge connection have with self assorted baffle (10), be connected with sealed pad (11) between baffle (10) and the fuel is put in mouthful (9) lateral wall, sealed pad (11) are located the downside of baffle (10) and put in mouthful (9) lateral wall fixed connection with fuel.

3. The civil high-efficiency regenerative combustion boiler as set forth in claim 1, wherein: the boiler shell (1) is made of magnetic materials, and the baffle (10) is inlaid with an adsorption magnet (12).

4. The civil high-efficiency regenerative combustion boiler as set forth in claim 1, wherein: the boiler is characterized in that a heat energy supplementing pipe (7) is fixedly connected to the side wall of the boiler shell (1), and one section of the heat energy supplementing pipe (7) penetrates through the side wall of the boiler shell (1) and extends into the steam area (4).

5. The civil high-efficiency regenerative combustion boiler as set forth in claim 1, wherein: one end that heat energy compensating pipe (7) is located steam district (4) is pegged graft and is had sealed lid (13), sealed lid (13) lateral wall is dug through-hole (14), steam district (4) are close to one section division of sealed lid (13) and are dug a pair of spacing groove (15), sealed lid (13) are close to one section fixedly connected with gag lever post (16) of heat energy compensating pipe (7), and gag lever post (16) are pegged graft in spacing groove (15), the one end fixedly connected with limiting plate (17) of sealed lid (13) are kept away from in gag lever post (16), fixedly connected with spacing ring (19) is located to spacing groove (15) notch, first compression spring (18) of fixedly connected with between limiting plate (17) and spacing ring (19), and first compression spring (18) cup joint in the outside of gag lever post (16).

6. The civil high-efficiency regenerative combustion boiler according to claim 5, wherein: spacing ring (19) are including go up ring (1901), go up ring (1901) and spacing groove (15) threaded connection, it has a plurality of dismantlement grooves (1902) to cut on go up ring (1901).

7. The civil high-efficiency regenerative combustion boiler as set forth in claim 6, wherein: a wear-resistant ring (1903) is connected between the connecting ring (1901) and the limiting rod (16), and the wear-resistant ring (1903) is fixedly connected with the connecting ring (1901).

8. The civil high-efficiency regenerative combustion boiler as set forth in claim 1, wherein: a prefabricated groove (22) is cut on the inner wall of the heat preservation cavity, a movable groove (23) is cut on the groove bottom plate of the prefabricated groove (22), a straight rod (24) is inserted in the movable groove (23), one end of the straight rod (24) far away from the movable groove (23) penetrates through the prefabricated groove (22), and extends to the outer side of the prefabricated groove (22), a limiting ring (27) is fixedly connected at the notch of the movable groove (23), a push plate (26) is fixedly connected at one end of the straight rod (24), and the push plate (26) is positioned in the movable groove (23), a second compression spring (28) is fixedly connected between the push plate (26) and the limit ring (27), and second compression spring (28) cup joints in the outside of straight-bar (24), a plurality of barbs (25) of one section fixedly connected with that push pedal (26) are kept away from straight-bar (24), and barbs (25) are in the same place with fixed pocket net (20) hook.

9. The civil high-efficiency regenerative combustion boiler according to claim 8, wherein: a cavity is chiseled in the barb (25).

10. The civil high-efficiency regenerative combustion boiler according to claim 8, wherein: the movable groove (23) bottom plate fixedly connected with electro-magnet (29), push pedal (26) select for use magnet to make, and electro-magnet (29) and push pedal (26) one side that is close to each other are homopolar.