CN213713959U - Furnace top structure of heating furnace - Google Patents
Furnace top structure of heating furnace Download PDFInfo
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- CN213713959U CN213713959U CN202022937161.7U CN202022937161U CN213713959U CN 213713959 U CN213713959 U CN 213713959U CN 202022937161 U CN202022937161 U CN 202022937161U CN 213713959 U CN213713959 U CN 213713959U
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- heat exchange
- furnace
- fixed mounting
- exchange tube
- furnace body
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Abstract
The utility model belongs to the technical field of the heating furnace technique and specifically relates to a furnace roof structure of heating furnace, including the furnace body roof, the inboard fixed mounting of furnace body roof has the refractory castable, the bottom fixed mounting of refractory castable has the isolation drum, keep apart the inside fixed mounting of drum and have a plurality of heat exchange tubes, the heat exchange tube distributes around keeping apart drum equidistance, the bottom fixed mounting of refractory castable has a plurality of mounts seats with the heat exchange tube one-to-one, the heat exchange tube runs through the furnace body roof, and extends to the outside of furnace body roof, the entrance point fixed mounting of heat exchange tube has first annular water pipe, the exit end fixed mounting. The utility model discloses can avoid keeping apart the inner wall temperature of drum many high and warp, and then effectively avoid the harmful effects to the heating furnace.
Description
Technical Field
The utility model relates to a heating furnace technical field especially relates to a furnace roof structure of heating furnace.
Background
The heating furnace is widely applied to heating, drying or softening in the fields of food, chemical fiber, petrifaction and the like. With the increasing requirement for environmental protection, gas heating furnaces using clean combustible gases such as natural gas and rock stratum gas as fuel are more and more favored by people;
the furnace top structure of the traditional heating furnace comprises a spiral vertical coil pipe, refractory castable and a furnace top cover which are arranged at the furnace top, wherein the heating furnace comprises a shell and the spiral vertical coil pipe arranged in the shell, the spiral vertical coil pipe at the furnace top and the spiral vertical coil pipe in the shell form an integral coil pipe, the furnace top of the heating furnace usually adopts double top covers, namely a sealing cover is sleeved in the furnace top cover, and the sealing cover consists of a stainless steel cylinder, the refractory castable and heat insulation cotton; because the heat-resisting temperature of the stainless steel is more than 1000 ℃, and the furnace top is a high-temperature area, the stainless steel circular ring plate is usually heated to deform under the high-temperature state for a long time, once the circular ring plate deforms, a larger or smaller gap is generated between the vertical coil pipe and the stainless steel circular ring plate, high-temperature flue gas enters a space between the vertical coil pipe and the stainless steel cylinder from the gap, and the sealing filler is easily washed away by the flue gas due to the high flow rate of the flue gas, so that the stainless steel cylinder of the sealing cover is completely exposed in the flue gas. In such a way, the stainless steel cylinder is also deformed due to the high-temperature flue gas, so that the fireproof pouring layer is cracked or even falls off, the furnace top collapse and the flue gas short circuit accidents are caused, the temperature of the furnace top and the temperature of the outer surface of the furnace body are increased rapidly, the heat absorption capacity of the heating medium is reduced, the ideal temperature cannot be reached, the heat efficiency is greatly reduced, the service life of the heating furnace is shortened, and the use effect of a user is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the stainless steel cylinder is easy to be washed by high-temperature flue gas and becomes in the prior art, and providing the furnace top structure of the heating furnace.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the design is a furnace top structure of a heating furnace, comprising a furnace body top wall, the inboard fixed mounting of furnace body top wall has the refractory castable, the bottom fixed mounting of refractory castable has the isolation drum, keep apart the inside fixed mounting of drum and have a plurality of heat exchange tubes, the heat exchange tube distributes around keeping apart drum equidistance, the bottom fixed mounting of refractory castable has a plurality of and heat exchange tube one-to-one's mount pad, the heat exchange tube runs through the furnace body top wall, and extends to the outside of furnace body top wall, the entrance point fixed mounting of heat exchange tube has first annular water pipe, the exit end fixed mounting of heat exchange tube has second annular.
Preferably, the top of the furnace body top wall is clamped with a furnace top cover, the bottom of the furnace top cover is fixedly provided with a sealing plate, and the outer diameter of the sealing plate is the same as that of the furnace body top wall.
Preferably, the heat exchange tube is of a U-shaped structure, and the vertical section of the heat exchange tube is attached to the inner wall of the isolation cylinder.
Preferably, a first pipe orifice joint is fixedly mounted on the outer side of the first annular water pipe, and a water inlet pipe is fixedly mounted at the inlet end of the first pipe orifice joint.
Preferably, a second pipe orifice joint is fixedly mounted on the outer side of the second annular water pipe, and a water outlet pipe is fixedly mounted at the outlet end of the second pipe orifice joint.
The utility model provides a furnace roof structure of heating furnace, beneficial effect lies in: leading-in first annular water pipe of cold water through the inlet tube, then all shunt to each heat exchange tube, and heat exchange tube evenly distributed is at the inner wall of keeping apart the drum, when high-temperature gas and keep apart the drum contact, the inside cold water of heat exchange tube can absorb a large amount of heats, then derive to second annular water pipe, then continue to the leading-in cold water of inlet tube, can realize continuously supplying cold water like this to avoid keeping apart the inner wall temperature of drum how high and warp, and then effectively avoid the harmful effects to the heating furnace.
Drawings
Fig. 1 is a schematic structural view of a furnace top structure of a heating furnace provided by the present invention;
fig. 2 is a partial sectional view of a furnace top structure of a heating furnace according to the present invention;
fig. 3 is a partial sectional view of a furnace top structure of a heating furnace according to the present invention.
In the figure: furnace body roof 1, refractory castable 11, keep apart drum 12, furnace roof 2, closing plate 3, heat exchange tube 4, mount pad 41, first annular water pipe 5, first mouth of pipe joint 51, inlet tube 52, second annular water pipe 6, second mouth of pipe joint 61, outlet pipe 62.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a furnace top structure of a heating furnace comprises a furnace body top wall 1, a furnace top cover 2 is clamped at the top of the furnace body top wall 1, a sealing plate 3 is fixedly arranged at the bottom of the furnace top cover 2, and the outer diameter of the sealing plate 3 is the same as that of the furnace body top wall 1; the inner side of the furnace body top wall 1 is fixedly provided with a refractory castable 11, and the bottom of the refractory castable 11 is fixedly provided with an isolation cylinder 12;
a plurality of heat exchange tubes 4 are fixedly arranged in the isolation cylinder 12, the heat exchange tubes 4 are distributed around the isolation cylinder 12 at equal intervals, the heat exchange tubes 4 are of U-shaped structures, and the vertical sections of the heat exchange tubes 4 are attached to the inner wall of the isolation cylinder 12; the bottom of the refractory castable 11 is fixedly provided with a plurality of mounting seats 41 which are in one-to-one correspondence with the heat exchange tubes 4, the heat exchange tubes 4 penetrate through the top wall 1 of the furnace body and extend to the outer side of the top wall 1 of the furnace body, the inlet ends of the heat exchange tubes 4 are fixedly provided with first annular water tubes 5, and the outlet ends of the heat exchange tubes 4 are fixedly provided with second annular water tubes 6; a first pipe orifice joint 51 is fixedly mounted on the outer side of the first annular water pipe 5, a water inlet pipe 52 is fixedly mounted at the inlet end of the first pipe orifice joint 51, a second pipe orifice joint 61 is fixedly mounted on the outer side of the second annular water pipe 6, and a water outlet pipe 62 is fixedly mounted at the outlet end of the second pipe orifice joint 61.
Leading-in first annular water pipe 5 of cold water through inlet tube 52, then all shunt to each heat exchange tube 4, and heat exchange tube 4 evenly distributed is at the inner wall of keeping apart drum 12, when high-temperature gas and the contact of keeping apart drum 12, the inside cold water of heat exchange tube 4 can absorb a large amount of heats, then derive to second annular water pipe 6, then continue to the leading-in cold water of inlet tube 52, can realize continuously supplying cold water like this to avoid keeping apart the inner wall high temperature of drum 12 and warping, and then effectively avoid the harmful effects to the heating furnace.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a furnace roof structure of heating furnace, includes furnace body roof (1), its characterized in that, furnace body roof (1) inboard fixed mounting has refractory castable (11), the bottom fixed mounting of refractory castable (11) keeps apart drum (12), keep apart inside fixed mounting of drum (12) and have a plurality of heat exchange tubes (4), heat exchange tube (4) are around keeping apart drum (12) equidistance and are distributed, the bottom fixed mounting of refractory castable (11) has a plurality of mount pads (41) with heat exchange tube (4) one-to-one, furnace body roof (1) is run through in heat exchange tube (4), and extends to the outside of furnace body roof (1), the entrance point fixed mounting of heat exchange tube (4) has first annular water pipe (5), the exit end fixed mounting of heat exchange tube (4) has second annular water pipe (6).
2. The roof structure of a heating furnace according to claim 1, wherein a furnace top cover (2) is fastened to the top of the furnace body top wall (1), a sealing plate (3) is fixedly mounted at the bottom of the furnace top cover (2), and the outer diameter of the sealing plate (3) is the same as that of the furnace body top wall (1).
3. The roof structure of a heating furnace according to claim 1, wherein the heat exchange tube (4) is of a U-shaped structure, and the vertical section of the heat exchange tube (4) is attached to the inner wall of the insulating cylinder (12).
4. The roof structure of a heating furnace according to claim 3, wherein a first nozzle joint (51) is fixedly installed on the outer side of the first annular water pipe (5), and a water inlet pipe (52) is fixedly installed at the inlet end of the first nozzle joint (51).
5. The roof structure of a heating furnace according to claim 4, wherein a second nozzle joint (61) is fixedly installed on the outer side of the second annular water pipe (6), and an outlet pipe (62) is fixedly installed at the outlet end of the second nozzle joint (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937161.7U CN213713959U (en) | 2020-12-10 | 2020-12-10 | Furnace top structure of heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937161.7U CN213713959U (en) | 2020-12-10 | 2020-12-10 | Furnace top structure of heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213713959U true CN213713959U (en) | 2021-07-16 |
Family
ID=76786836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022937161.7U Active CN213713959U (en) | 2020-12-10 | 2020-12-10 | Furnace top structure of heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213713959U (en) |
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2020
- 2020-12-10 CN CN202022937161.7U patent/CN213713959U/en active Active
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