CN112050187B

CN112050187B - Superheated steam boiler

Info

Publication number: CN112050187B
Application number: CN202010886262.8A
Authority: CN
Inventors: 范定军; 陈光秋; 杨明; 王洪海; 丁超
Original assignee: Cssc Jiujiang Boiler Co ltd
Current assignee: Cssc Jiujiang Boiler Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2022-05-03
Anticipated expiration: 2040-08-28
Also published as: CN112050187A

Abstract

The invention discloses an overheated steam boiler, and relates to the technical field of steam boilers. The invention comprises a furnace body, wherein an inner container is fixed at the bottom in the furnace body; a water storage cavity is arranged between the furnace body and the inner container; a condensing rack is arranged on the inner wall of the water storage cavity and positioned at the top of the inner container; a heat conducting clapboard is arranged inside the inner container; the inner container is divided into a hearth and a reheating cavity by a heat-conducting partition plate; the bottom of the heat-conducting partition plate is communicated with a heat-conducting coil pipe; the other end of the heat conducting coil is communicated with a conduit; the outer periphery of the guide pipe is covered with a smoke outlet pipe; one end of the smoke outlet pipe is positioned at the top of the hearth. According to the invention, the water content in the floating steam is controlled under the action of the condensation frame, and the saturated steam is reheated for three times under the action of the heat-conducting partition plate, the smoke outlet pipe, the guide pipe and the heat-conducting coil, so that the superheated steam with higher temperature is generated by heating under the condition of pressure bearing, and the smoke generated by combustion in the hearth and the saturated steam in the guide pipe exchange heat with each other, so that the discharged heat is recycled, and the energy consumption is reduced.

Description

Superheated steam boiler

Technical Field

The invention belongs to the technical field of steam boilers, and particularly relates to an overheated steam boiler.

Background

The superheated steam is steam with increased continuous heating temperature after dry saturation, is used for drying materials, has the advantages of high drying speed, good quality, safety, energy conservation, environmental protection, sterilization, disinfection and the like, and can be used for drying various materials such as wood, coal, medicines, food, municipal waste and the like.

In the embodiment of the pressure-bearing superheated steam heat pipe boiler disclosed in the chinese patent CN2793548Y (application No. 200520009065.9), when the boiler is used, under the action of an induced draft fan, flame enters a combustion chamber from a coal combustion chamber and reaches a burnout chamber through flame holes, under the combined action of a flame filter disc and the burnout chamber, strong cyclone combustion is performed to form high-temperature clean hot air flow, the hot air flow enters a fire pipe, heat is conducted to liquid heat medium through a heat pipe of a lower fire pipe to rapidly evaporate steam, meanwhile, the steam is also evaporated under the condition that the liquid heat medium in a tubular furnace tube is re-heated by flame, the steam enters the upper part of a furnace shell through a steam supplement pipe, heat is conducted to the steam through a heat pipe on an upper fire pipe to further heat the steam to form superheated steam, and when the superheated steam is continuously increased, the pressure reaches the required requirement, the boiler enters a steam using device. If under the condition that liquid heat medium is water, steam is mended the pipe and will be joined in the burning through auxiliary combustion pipe with steam or hot water injection coal firing chamber, combustion chamber or burn the cinder chamber, but this kind of structure only adopts the single heating to the intensification of liquid heat medium, easily makes the unable intensification of part dry saturated steam reach superheated steam's requirement, and the limitation to steam heating intensification is great, can't satisfy the demand of in-service use.

Disclosure of Invention

The invention aims to provide an overheated steam boiler, which controls the water content in steam through a condensing plate and reheats saturated steam for three times, thereby solving the problems of low temperature rising speed and low overheated steam temperature of the existing overheated steam boiler.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to an overheated steam boiler, which comprises a boiler body,

an inner container is fixed at the bottom in the furnace body; a water storage cavity is arranged between the furnace body and the inner container; a condensing rack is arranged on the inner wall of the water storage cavity and positioned at the top of the inner container;

a heat conduction clapboard is arranged inside the inner container; the inner container is divided into a hearth and a reheating cavity by a heat conduction partition plate; the bottom of the heat-conducting partition plate and the top end in the hearth are communicated with a heat-conducting coil pipe; the other end of the heat conducting coil is communicated with a guide pipe; the guide pipe sequentially penetrates through the inner container and the furnace body and is communicated with the top of the water storage cavity;

the outer periphery side of the guide pipe is covered with a smoke outlet pipe; one end of the smoke outlet pipe is positioned at the top of the hearth; the other end of the smoke outlet pipe extends to the top of the furnace body;

the condensation frame comprises a mounting plate; the annular array on the upper surface of the mounting plate is uniformly provided with condenser pipes; a water outlet hole is formed in the side surface of the bottom end of the condensation pipe; the mounting plate is evenly provided with water passing notches along the annular array.

Further, the top end of the inner container is communicated with a steam outlet pipe; and the steam outlet pipe sequentially penetrates through the condensation frame and the furnace body and extends to the top of the furnace body.

Further, the mounting plate is of a conical structure; and a through hole matched with the steam outlet pipe is formed in the center of the mounting plate.

Further, an igniter is arranged at the bottom of the inner wall of the hearth; and the bottom of the inner wall of the hearth is communicated with an ash discharge port on one side of the igniter.

Furthermore, a fuel inlet channel is arranged on the peripheral side surface of the bottom end of the furnace body; the outer port of the fuel inlet channel is hinged with a furnace door; the inner end of the fuel inlet channel penetrates through the water storage cavity and is positioned in the hearth between the bottoms of the heat conduction coil pipes to be communicated with each other.

Furthermore, a water inlet communicated with the water storage cavity is formed in the peripheral side surface of the top end of the furnace body and positioned at the bottom of the condensation frame; the side surface of the periphery of the bottom end of the furnace body is provided with a water outlet communicated with the water storage cavity.

Furthermore, a steel wire intercepting net is arranged on the circumferential side surface of the inner wall of the hearth and at the bottom of the inner end of the fuel inlet channel.

Furthermore, the peripheral side face of the bottom end of the furnace body is provided with an installation support.

The invention has the following beneficial effects:

according to the invention, steam is generated by heating the water storage cavity, the water content in the floating steam is controlled under the action of the condensing frame, so that the floating steam is saturated, the saturated steam is reheated for three times under the action of the heat-conducting partition plate, the smoke outlet pipe, the guide pipe and the heat-conducting coil pipe, so that the saturated steam is heated to generate superheated steam with higher temperature under the condition of pressure bearing, the smoke generated by combustion in the hearth and the saturated steam in the guide pipe exchange heat with each other, the discharged heat is recycled, the energy consumption is reduced, the energy resource is effectively utilized, and the production cost of an enterprise is reduced.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

FIG. 1 is a schematic view of a superheated steam boiler according to the present invention;

FIG. 2 is a schematic sectional view of a superheated steam boiler;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at B;

FIG. 5 is a schematic structural view of a condensing plate;

in the drawings, the reference numbers indicate the following list of parts:

1-furnace body, 2-inner container, 3-water storage cavity, 4-condensation frame, 5-heat conduction partition plate, 6-furnace cavity, 7-reheating cavity, 8-heat conduction coil pipe, 9-guide pipe, 10-smoke outlet pipe, 11-steam outlet pipe, 12-steel wire interception net, 13-igniter, 14-ash discharge port, 15-fuel inlet channel, 16-furnace door, 17-water inlet, 18-water outlet, 19-mounting support, 401-mounting plate, 402-condensation pipe, 403-water outlet, 404-water through notch and 405-through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Referring to fig. 1 to 5, the present invention is a superheated steam boiler, comprising a boiler body 1,

an inner container 2 is fixed at the bottom in the furnace body 1; a water storage cavity 3 is arranged between the furnace body 1 and the inner container 2; a condensing rack 4 is arranged on the inner wall of the water storage cavity 3 and positioned at the top of the inner container 2;

a heat conducting clapboard 5 is arranged inside the inner container 2; the inner container 2 is divided into a hearth 6 and a reheating cavity 7 by a heat conduction clapboard 5; the bottom of the heat-conducting partition plate 5 and the top end in the hearth 6 are communicated with a heat-conducting coil 8; the other end of the heat conducting coil 8 is communicated with a conduit 9; the conduit 9 penetrates the inner container 2 and the furnace body 1 in sequence and is communicated with the top of the water storage cavity 3; when the floating steam passes through the condensing pipe 402 on the surface of the condensing frame 4, partial condensed water is generated by mutual heat exchange with the condensing pipe 402, and the condensed water flows downwards through the water outlet hole 403 and the water passing groove opening 404 and flows back to the bottom of the water storage cavity 3 through the inner wall of the water storage cavity 3, so that the temperature of the floating steam is prevented from dropping to cause the temperature reduction of the floating steam, and the floating steam condensed by the condensing pipe 402 is converted into saturated steam due to lower water content;

the side surface of the periphery of the guide pipe 9 is coated with a smoke outlet pipe 10; one end of the smoke outlet pipe 10 is positioned at the top of the hearth 6; the other end of the smoke outlet pipe 10 extends to the top of the furnace body 1; because the smoke outlet pipe 10 coats the guide pipe 9, when smoke is discharged through the smoke outlet pipe 10, saturated steam flowing in the guide pipe 9 is heated, and residual heat in high-temperature smoke generated by combustion is recycled, so that energy consumption is reduced, and energy resources are effectively utilized;

the condensation frame 4 comprises a mounting plate 401; the annular array on the upper surface of the mounting plate 401 is uniformly provided with condenser pipes 402; a water outlet hole 403 is formed in the side surface of the bottom end of the condensation pipe 402; the mounting plate 401 is uniformly provided with water slots 404 along the annular array.

Wherein, the top end of the inner container 2 is communicated with a steam outlet pipe 11; the steam outlet pipe 11 penetrates through the condensation frame 4 and the furnace body 1 in sequence and extends to the top of the furnace body 1, and superheated steam heated by temperature rise is led out through the steam outlet pipe 11 for use.

Wherein the mounting plate 401 is a conical structure; the condensed water is guided, the temperature of the floating steam is prevented from being reduced due to direct dropping of the condensed water, and a through hole 405 matched with the steam outlet pipe 11 is formed in the center of the mounting plate 401.

Wherein, the bottom of the inner wall of the hearth 6 is provided with an igniter 13; an ash discharge port 14 is communicated with the bottom of the inner wall of the hearth 6 and positioned at one side of the igniter 13, and ash generated by combustion in the hearth is discharged through the ash discharge port 14.

Wherein, the peripheral side surface of the bottom end of the furnace body 1 is provided with a fuel inlet channel 15; the outer port of the fuel inlet channel 15 is hinged with a furnace door 16; the inner 15 of fuel inlet channel runs through water storage chamber 3 and is located the furnace 6 intercommunication between the 8 bottoms of heat conduction coil pipe, and inside fuel passed through 15 heat conduction furnaces 6 of fuel inlet channel, the burning produced the heat under the effect of lighter 13.

Wherein, the peripheral side surface of the top end of the furnace body 1 and the bottom of the condensation frame 4 are provided with water inlets 17 which are mutually communicated with the water storage cavity 3; the circumferential side surface of the bottom end of the furnace body 1 is provided with a water outlet 18 which is mutually communicated with the water storage cavity 3.

Wherein, the inner wall circumference side of the hearth 6 and the bottom of the inner end of the fuel inlet channel 15 are provided with steel wire interception nets 12, the fuel introduced through the fuel inlet channel intercepts the fuel under the action of the steel wire interception nets 12, the fuel is combusted under the action of the igniter 13, and then the ash generated later falls to the bottom of the hearth 6 through the steel wire interception nets 12.

Wherein, the peripheral side of the bottom end of the furnace body 1 is provided with an installation support 19 for supporting and installing the whole furnace body 1.

One specific application of this embodiment is: the water source is introduced into a water storage cavity 3 in a furnace body 1 through a water inlet 17, fuel is introduced into a hearth 6 through a fuel inlet channel 15, the steel wire intercepting net 12 intercepts the fuel, the fuel positioned on the surface of the steel wire intercepting net 12 is combusted under the action of an igniter 13, the water source in the water storage cavity 3 is heated and heated up by the heat generated by combustion, the water source in the water storage cavity 3 is heated and heated up to generate steam and float upwards, when the floating steam passes through a condensing pipe 402 on the surface of a condensing frame 4, the floating steam exchanges heat with the condensing pipe 402 to generate partial condensed water, the condensed water flows downwards through a water outlet hole 403 and a water passing notch 404 and flows back to the bottom of the water storage cavity 3 through the inner wall of the water storage cavity 3, the temperature of the floating steam is prevented from dropping to reduce, the floating steam condensed by the condensing pipe 402 floats upwards, the saturated steam floats upwards and is introduced into a reheating cavity 7 through a guide pipe 9 and a heat conducting coil 8 which are communicated with the top of the water storage cavity 3 in sequence due to lower saturation of the condensing pipe 402, the heat generated in the hearth 6 can directly heat the saturated steam in the heat conducting coil 8 and the reheating cavity 7, thereby generating superheated steam, discharging high-temperature flue gas generated by combustion in the hearth 6 through the flue gas outlet pipe 10, since the smoke outlet pipe 10 covers the conduit 9, when the smoke is discharged through the smoke outlet pipe 10, the saturated steam flowing in the conduit 9 is heated up and heated for three times, so that the saturated steam is heated to generate superheated steam with higher temperature under the condition of pressure bearing, and the discharged heat is recycled, so that the energy consumption is reduced, the ash generated after the combustion in the hearth 6 falls to the bottom of the hearth 6 through the steel wire interception net 12, and is discharged through the ash discharge port 14, and after the boiler is used, the water source remained in the water storage cavity 3 can be discharged through the water outlet 17, so that the energy resource is effectively utilized, and the production cost of enterprises is reduced.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A superheated steam boiler comprising a body (1), characterized in that:

an inner container (2) is fixed at the bottom in the furnace body (1); a water storage cavity (3) is arranged between the furnace body (1) and the inner container (2); a condensing rack (4) is arranged on the inner wall of the water storage cavity (3) and positioned at the top of the inner container (2);

a heat-conducting partition plate (5) is arranged in the inner container (2); the inner container (2) is divided into a hearth (6) and a reheating cavity (7) by a heat-conducting partition plate (5); the bottom of the heat-conducting partition plate (5) and the top end in the hearth (6) are communicated with a heat-conducting coil (8); the other end of the heat conducting coil (8) is communicated with a conduit (9); the guide pipe (9) sequentially penetrates through the inner container (2) and the furnace body (1) and is communicated with the top of the water storage cavity (3);

the outer circumferential side of the guide pipe (9) is covered with a smoke outlet pipe (10); one end of the smoke outlet pipe (10) is positioned at the top of the hearth (6); the other end of the smoke outlet pipe (10) extends to the top of the furnace body (1);

the condensation frame (4) comprises a mounting plate (401); the annular array on the upper surface of the mounting plate (401) is uniformly provided with condensation pipes (402); a water outlet hole (403) is formed in the side surface of the bottom end of the condensation pipe (402); the mounting plate (401) is uniformly provided with water passing notches (404) along the annular array.

2. A superheated steam boiler according to claim 1, characterized in that the top end of the inner vessel (2) is connected with a steam outlet pipe (11); the steam outlet pipe (11) penetrates through the condensation frame (4) and the furnace body (1) in sequence and extends to the top of the furnace body (1).

3. A superheated steam boiler according to claim 2, characterized in that the mounting plate (401) is of conical configuration; the center of the mounting plate (401) is provided with a through hole (405) matched with the steam outlet pipe (11).

4. A superheated steam boiler according to claim 1, characterized in that the bottom of the inner wall of the furnace (6) is provided with an igniter (13); and an ash discharge port (14) is communicated with the bottom of the inner wall of the hearth (6) and is positioned at one side of the igniter (13).

5. A superheated steam boiler according to claim 1, characterized in that the bottom peripheral side of the furnace body (1) is provided with fuel inlet channels (15); an outer port of the fuel inlet channel (15) is hinged with a furnace door (16); the inner end of the fuel inlet channel (15) penetrates through the water storage cavity (3) and the hearth (6) between the bottoms of the heat conducting coil pipes (8) are communicated with each other.

6. A superheated steam boiler according to claim 1, characterized in that the peripheral side of the top of the furnace body (1) at the bottom of the condensation frame (4) is provided with a water inlet (17) communicating with the water storage chamber (3); and the peripheral side surface of the bottom end of the furnace body (1) is provided with a water outlet (18) which is communicated with the water storage cavity (3).

7. A superheated steam boiler according to claim 5, characterized in that the inner peripheral surface of the furnace (6) at the bottom of the inner end of the fuel inlet channel (15) is provided with wire intercepting screens (12).

8. A superheated steam boiler according to claim 1, characterized in that the bottom peripheral side of the furnace body (1) is provided with mounting brackets (19).