CN210014347U - Water-cooled rear smoke box for boiler - Google Patents
Water-cooled rear smoke box for boiler Download PDFInfo
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- CN210014347U CN210014347U CN201920586200.8U CN201920586200U CN210014347U CN 210014347 U CN210014347 U CN 210014347U CN 201920586200 U CN201920586200 U CN 201920586200U CN 210014347 U CN210014347 U CN 210014347U
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Abstract
The utility model relates to a water-cooled rear smoke box for a boiler, which comprises a rear smoke box cylinder body, a fire-resistant layer, a rear smoke box flange, a smoke box end cover, a fixing frame, a rear smoke box top plate and a heat insulation layer, wherein a water jacket interlayer is arranged between the rear smoke box cylinder body and the smoke box end cover, and the water jacket interlayer is filled with cooling water to cool down the outside of the rear smoke box cylinder body at high temperature; the connecting pipe is communicated with a condenser arranged above the rear smoke box cylinder. The utility model discloses rational in infrastructure, built-in water-cooling structure, through cooling water cooling back smoke box, effectively reduce back smoke box outer wall temperature, the cooling water can be done the cooling inner loop and used, also can external circulating boiler use of intaking, also can get the hot water and use, the back smoke box of solving current gas boiler is dry-type back smoke box generally, waste heat temperature has been wasted to the whitish, too high temperature also can cause harm to back smoke box outer wall, influence the technical problem such as life of back smoke box, to prior art, fine market prospect and development space have.
Description
Technical Field
The utility model relates to an industrial gas or oil fired boiler equipment technical field, concretely relates to smoke box behind water-cooled that boiler was used.
Background
With the development of science and technology and the improvement of the living standard of people, the application of the gas boiler in the industries of steam, heating, food processing and the like is more and more extensive. Because the gas-fired boiler generally adopts natural gas, city gas, coke oven gas, liquefied petroleum gas and biogas as fuel, the combustion heat value is high, in the traditional boiler, the exhaust gas temperature is relatively high after the fuel is combusted in the boiler, the water vapor in the exhaust gas is still in a gaseous state, and a large amount of heat can be taken away, in various fossil fuels, the hydrogen content of the natural gas is the highest, the mass percent of the hydrogen is about 20-25%, therefore, the exhaust gas contains a large amount of water vapor, and the waste heat after combustion has high temperature and high enthalpy value.
Generally the back smoke box for common gas boiler is dry-type back smoke box, set up at the smoke box exit end and prevent high temperature material, generally common be high temperature resistant concrete etc, the waste heat waste gas after the back smoke box will burn discharges away, so that heat utilization rate is lower, waste heat energy has been wasted to the whitish, on the other hand because the too high temperature of waste heat also can cause harm to back smoke box outer wall, the back smoke box can take place the expend with heat and contract with cold reaction under being in the high temperature for a long time, influence the life of back smoke box.
How to design a rational in infrastructure, design benefit, built-in water-cooling structure through cooling water cooling back smoke box, effectively reduces back smoke box outer wall temperature, and the water-cooling back smoke box that the boiler that also can external used cyclically was used can be used to the internal recycle, is the problem that needs to solve at present.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems that the rear smoke box of the existing gas-fired boiler is generally a dry-type rear smoke box, the outlet end of the smoke box is provided with a high-temperature-resistant material which is generally high-temperature-resistant concrete and the like, the rear smoke box discharges the waste heat and the waste gas after combustion, therefore, the heat energy utilization rate is lower, the waste heat is lost in vain, on the other hand, the outer wall of the rear smoke box body can be damaged due to the overhigh temperature of the waste heat, the rear smoke box body can generate thermal expansion and cold contraction reaction under the overhigh temperature for a long time, the service life of the rear smoke box body is influenced, and the like, the utility model provides the water-cooled rear smoke box for the boiler, which realizes the technical problems of reasonable structure, ingenious design and built-in water-cooled structure, the rear smoke box is cooled by cooling water, the temperature of the outer wall of the box body of the rear smoke box is effectively reduced, and the cooling water can be used for cooling internal circulation, can also be used for external circulation boiler water inlet and can also be used for taking hot water.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: a water-cooled rear smoke box for a boiler comprises a rear smoke box cylinder, a fire-resistant layer, a rear smoke box flange, a smoke box end cover, a fixing frame, a rear smoke box top plate and a heat insulation layer, wherein the heat insulation layer is positioned on the inner wall of the rear smoke box cylinder; a water jacket interlayer is arranged between the rear smoke box cylinder body and the smoke box end cover, the thickness of the water jacket interlayer is 50-80mm, and cooling water is filled in the water jacket interlayer so as to cool the outer parts of the exposed parts of the rear smoke box cylinder body and the smoke box end cover at high temperature; the edge of the smoke box end cover is fixedly connected with a rear smoke box flange through a first bolt; the rear part of the rear smoke box barrel is provided with a fire barrier, and the rear part of the fire barrier is provided with an explosion-proof hole; a horizontal partition plate is arranged in the middle of the rear smoke box cylinder body to divide the cavity part of the rear smoke box cylinder body into an upper cavity and a lower cavity, wherein a condensate pipe extending to the outside of the rear smoke box cylinder body is arranged on one side of the upper cavity; the smoke box comprises a smoke box body, and is characterized in that a connecting pipe is arranged on the smoke box end cover, the connecting pipe is communicated with a condenser arranged above the back smoke box body, and the bottom of the condenser is fixedly connected with a back smoke box top plate of the back smoke box body through a second bolt.
The cigarette box end cover is provided with a handle for grasping.
The heat insulation layer is made of an aluminum silicate fiberboard.
The fire-resistant layer and the fire-insulating wall are made of fire-resistant concrete.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the utility model comprises a rear smoke box cylinder, a fire-resistant layer, a rear smoke box flange, a smoke box end cover, a fixing frame, a rear smoke box top plate and a heat insulation layer, wherein the heat insulation layer is positioned on the inner wall of the rear smoke box cylinder, and the fire-resistant layer is positioned on the inner side of the heat insulation layer; the water jacket interlayer is arranged between the rear smoke box barrel and the smoke box end cover, the thickness of the water jacket interlayer is 50-80mm, and cooling water is filled in the water jacket interlayer to cool the exposed part of the rear smoke box barrel and the smoke box end cover at high temperature;
2) the edge of the smoke box end cover is fixedly connected with a rear smoke box flange through a first bolt; the rear part of the rear smoke box barrel is provided with a fire barrier, and the rear part of the fire barrier is provided with an explosion-proof hole; a horizontal partition plate is arranged in the middle of the rear smoke box cylinder body to divide the cavity part of the rear smoke box cylinder body into an upper cavity and a lower cavity, wherein a condensate pipe extending to the outside of the rear smoke box cylinder body is arranged on one side of the upper cavity;
3) the connecting pipe is arranged on the smoke box end cover and is communicated with the condenser arranged above the rear smoke box cylinder, the bottom of the condenser is fixedly connected with the rear smoke box top plate of the rear smoke box cylinder through a second bolt, high-temperature smoke with reduced temperature is further absorbed by cooling water in the condenser arranged above the rear smoke box, and the heat energy use efficiency is improved to the maximum extent;
4) the heat insulation layer is made of an aluminum silicate fiberboard, the aluminum silicate fiberboard is easy to obtain, the cost is low, the heat insulation effect is good, heat in the rear smoke box body is effectively insulated, and heat loss is reduced;
5) the fire-resistant layer and the fire-insulating wall are made of fire-resistant concrete, the fire-resistant concrete is easy to obtain, the cost is low, and the fire-resistant effect is good.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic sectional view of the A-A direction of the present invention;
the labels in the figure are: 1. rear smoke box cylinder 2, first bolt 3, fire-resistant layer 4, connecting pipe 5, rear smoke box flange 6, smoke box end cover 7, handle 8, explosion-proof hole 9, fire-proof wall 10, second bolt 11, fixing frame 12, rear smoke box top plate 13, condensate pipe 14, partition plate 15, heat-insulating layer.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in the figure, the water-cooled rear smoke box for the boiler comprises a rear smoke box cylinder 1, a fire-resistant layer 3, a rear smoke box flange 5, a smoke box end cover 6, a fixed frame 11, a rear smoke box top plate 12 and a heat insulation layer 15, wherein the heat insulation layer 15 is positioned on the inner wall of the rear smoke box cylinder 1, and the fire-resistant layer 3 is positioned on the inner side of the heat insulation layer 15; a water jacket interlayer is arranged between the rear smoke box cylinder body 1 and the smoke box end cover 6, the thickness of the water jacket interlayer is 50-80mm, and cooling water is filled in the water jacket interlayer so as to cool the exposed parts of the rear smoke box cylinder body 1 and the smoke box end cover 6 at high temperature; the edge of the smoke box end cover 6 is fixedly connected with a rear smoke box flange 5 through a first bolt 2; the rear part of the rear smoke box barrel 1 is provided with a fire wall 9, and an explosion-proof hole 8 is arranged behind the fire wall 9; a horizontal partition plate 14 is arranged in the middle of the rear smoke box cylinder 1 to divide the cavity part of the rear smoke box cylinder 1 into an upper cavity and a lower cavity, wherein a condensate pipe 13 extending to the outside of the rear smoke box cylinder 1 is arranged on one side of the upper cavity; be provided with connecting pipe 4 on smoke box end cover 6, connecting pipe 4 and the condenser intercommunication that sets up in back smoke box barrel 1 top, the bottom of condenser is through second bolt 10 and back smoke box roof 12 fixed connection of back smoke box barrel 1.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: the smoke box end cap 6 as described is provided with a handle 7 for gripping.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: the heat insulation layer 15 is made of an aluminum silicate fiberboard.
The basic implementation manner of the present invention can be further improved, perfected and limited on the basis: for example, the fire-resistant layer 3 and the fire-insulating wall 9 are both made of fire-resistant concrete.
The utility model discloses abandon traditional dry-type back smoke box structure, through built-in water-cooling structure, through cooling water cooling back smoke box, effectively reduce back smoke box outer wall temperature, cooling water can be done the cooling inner loop and used, also can external circulating boiler use of intaking, also can get the hot water and use.
Be provided with the connecting pipe on the smoke box end cover, the connecting pipe communicates with the condenser that sets up in back smoke box barrel top, and the bottom of condenser passes through second bolt and the back smoke box roof fixed connection of back smoke box barrel, makes the high temperature flue gas that passes through further absorbed by the inside cooling water of condenser that back smoke box top set up, furthest's improvement heat energy availability factor.
In practical application, the heat insulation layer is made of an aluminum silicate fiberboard, the aluminum silicate fiberboard is easy to obtain, the cost is low, the heat insulation effect is good, heat in the rear smoke box body is effectively insulated, and heat loss is reduced.
The utility model has reasonable structure and ingenious design, the internal water cooling structure effectively reduces the temperature of the outer wall of the rear smoke box body by cooling the rear smoke box through the cooling water, the cooling water can be used for cooling and internal circulation, can also be used by external circulation boiler water inlet, can also be used by taking hot water, and solves the problem that the rear smoke box of the existing gas boiler is generally a dry type rear smoke box, the outlet end of the smoke box is provided with a high-temperature-resistant material which is generally commonly high-temperature-resistant concrete and the like, the rear smoke box discharges the waste heat and the waste gas after combustion, therefore, the heat energy utilization rate is low, the waste heat is lost in vain, the outer wall of the rear smoke box body is damaged due to the overhigh temperature of the waste heat, the rear smoke box body can expand with heat and contract with cold for a long time under the overhigh temperature, the service life of the rear smoke box body is influenced, and the like, and the rear smoke box has good market prospect and development space for the prior art.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples, and various changes can be made without departing from the concept of the present invention within the knowledge of those skilled in the art.
Claims (4)
1. The utility model provides a smoke box behind water-cooled that boiler was used which characterized in that: the novel smoke box comprises a rear smoke box cylinder body (1), a fire-resistant layer (3), a rear smoke box flange (5), a smoke box end cover (6), a fixing frame (11), a rear smoke box top plate (12) and a heat insulation layer (15), wherein the heat insulation layer (15) is positioned on the inner wall of the rear smoke box cylinder body (1), and the fire-resistant layer (3) is positioned on the inner side of the heat insulation layer (15); a water jacket interlayer is arranged between the rear smoke box cylinder body (1) and the smoke box end cover (6), the thickness of the water jacket interlayer is 50-80mm, and cooling water is filled in the water jacket interlayer to cool the outer parts of the exposed parts of the rear smoke box cylinder body (1) and the smoke box end cover (6) at high temperature; the edge of the smoke box end cover (6) is fixedly connected with the rear smoke box flange (5) through a first bolt (2); a fire-proof wall (9) is arranged at the rear part of the rear smoke box cylinder body (1), and an explosion-proof hole (8) is arranged behind the fire-proof wall (9); a horizontal partition plate (14) is arranged in the middle of the rear smoke box cylinder body (1) to divide the cavity part of the rear smoke box cylinder body (1) into an upper cavity and a lower cavity, wherein a condensate pipe (13) extending to the outside of the rear smoke box cylinder body (1) is arranged on one side of the upper cavity; be provided with connecting pipe (4) on smoke box end cover (6), connecting pipe (4) and the condenser intercommunication that sets up in back smoke box barrel (1) top, the bottom of condenser is through second bolt (10) and back smoke box roof (12) fixed connection of back smoke box barrel (1).
2. The water-cooled rear smoke box for a boiler according to claim 1, wherein: the cigarette box end cover (6) is provided with a handle (7) for grasping.
3. The water-cooled rear smoke box for a boiler according to claim 1, wherein: the heat insulation layer (15) is made of an aluminum silicate fiberboard.
4. The water-cooled rear smoke box for a boiler according to claim 1, wherein: the fire-resistant layer (3) and the fire-insulating wall (9) are both made of fire-resistant concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586200.8U CN210014347U (en) | 2019-04-26 | 2019-04-26 | Water-cooled rear smoke box for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920586200.8U CN210014347U (en) | 2019-04-26 | 2019-04-26 | Water-cooled rear smoke box for boiler |
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| Publication Number | Publication Date |
|---|---|
| CN210014347U true CN210014347U (en) | 2020-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920586200.8U Active CN210014347U (en) | 2019-04-26 | 2019-04-26 | Water-cooled rear smoke box for boiler |
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| CN (1) | CN210014347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973984A (en) * | 2019-04-26 | 2019-07-05 | 平顶山市百阳丰机械制造有限公司 | Smoke box after a kind of water-cooled of boiler |
-
2019
- 2019-04-26 CN CN201920586200.8U patent/CN210014347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973984A (en) * | 2019-04-26 | 2019-07-05 | 平顶山市百阳丰机械制造有限公司 | Smoke box after a kind of water-cooled of boiler |
| CN109973984B (en) * | 2019-04-26 | 2024-02-27 | 平顶山市百阳丰机械制造有限公司 | Water-cooled back smoke box for boiler |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A water-cooled rear smoke box for boiler Effective date of registration: 20211228 Granted publication date: 20200204 Pledgee: Jiaxian Rural Credit Cooperative Association Pledgor: PINGDINGSHAN BAIYANGFENG MACHINERY MANUFACTURING CO.,LTD. Registration number: Y2021980016712 |