CN224163033U - Gas-fired heat preservation furnace - Google Patents
Gas-fired heat preservation furnaceInfo
- Publication number
- CN224163033U CN224163033U CN202520780993.2U CN202520780993U CN224163033U CN 224163033 U CN224163033 U CN 224163033U CN 202520780993 U CN202520780993 U CN 202520780993U CN 224163033 U CN224163033 U CN 224163033U
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- CN
- China
- Prior art keywords
- gas
- heat
- furnace
- heat recovery
- heat preservation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a gas heat preservation furnace, which comprises a furnace body, a combustion system and a heat recovery barrel, wherein the side edge of the heat recovery barrel is connected with a draught fan through a smoke exhaust pipe, the top of the heat recovery barrel is connected with an air pipe through a one-way valve, a spiral pipe is installed in the heat recovery barrel, the top end of the spiral pipe is communicated with the inside of the air pipe through the one-way valve, and the bottom end of the spiral pipe extends into a hearth of the furnace body. According to the utility model, the heat recovery barrel is arranged, so that flue gas generated in the combustion in the furnace firstly passes through the heat recovery barrel when discharged and exchanges heat with cold air in the spiral pipe, waste heat in the waste gas is effectively recovered, the waste heat in the waste gas is enabled to preheat combustion air, and high-temperature combustion air after absorbing the stored heat can enter the combustion nozzle for internal reference and combustion, so that energy recycling is formed, and the heat efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of casting, in particular to a gas heat preservation furnace.
Background
The gas heat preservation furnace adopts natural gas as fuel, generates heat through combustion to maintain the temperature of aluminum liquid, and generally consists of a furnace body, a combustion system, a control system and the like, wherein the furnace body is a main body structure of the heat preservation furnace and is used for accommodating the aluminum liquid, the combustion system is responsible for combusting the natural gas to generate heat, and the control system is used for monitoring and adjusting the temperature in the furnace.
At present, after the fuel gas is combusted, the fuel gas can generate flue gas, more heat is contained in the flue gas, the waste heat in the flue gas is difficult to effectively utilize by the existing fuel gas heat preservation furnace, the heat utilization efficiency is low, and certain energy waste is caused.
For this purpose, we propose a gas holding furnace to solve the above problems.
Disclosure of utility model
The utility model aims to provide a gas heat preservation furnace so as to solve the problems in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the gas heat preservation stove comprises a stove body, a combustion system and a heat recovery barrel, wherein the side edge of the heat recovery barrel is connected with a draught fan through a smoke exhaust pipe, the top of the heat recovery barrel is connected with an air pipe through a one-way valve, a spiral pipe is installed in the heat recovery barrel, the top end of the spiral pipe is communicated with the inside of the air pipe through the one-way valve, and the bottom end of the spiral pipe extends into a hearth of the stove body.
In a further embodiment, the combustion system comprises a pressure reducing valve, a gas flowmeter, a gas valve and a burner which are sequentially connected through pipelines, and the burner stretches into a hearth of the furnace body and is communicated with the bottom end of the spiral pipe.
In a further embodiment, an insulation layer is connected to the periphery of the outer wall of the heat recovery barrel.
In a further embodiment, a heat-insulating cover is covered on the soup taking opening above the front side of the furnace body.
In a further embodiment, a blanking hopper is arranged above the rear side of the furnace body.
In a further embodiment, an aluminum liquid temperature probe is also installed above the front side of the furnace body.
In a further embodiment, a thermocouple is also installed in the hearth of the furnace body.
Compared with the prior art, the utility model has the beneficial effects that:
According to the utility model, the heat recovery barrel is arranged, so that flue gas generated in the combustion in the furnace firstly passes through the heat recovery barrel when discharged and exchanges heat with cold air in the spiral pipe, waste heat in the waste gas is effectively recovered, the waste heat in the waste gas is enabled to preheat combustion air, and high-temperature combustion air after absorbing the stored heat can enter the combustion nozzle for internal reference and combustion, so that energy recycling is formed, and the heat efficiency is improved.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic diagram of a left side view of the present utility model;
FIG. 3 is a schematic view of the internal structure of the combustion system of the present utility model;
fig. 4 is a schematic view showing an internal structure of the heat recovery tank according to the present utility model.
In the figure, 1, a furnace body; 2, a combustion system, 21, a pressure reducing valve, 22, a gas flowmeter, 23, a gas valve, 24, a burner, 3, a heat recovery barrel, 31, an air pipe, 32, a one-way valve, 33, a spiral pipe, 34, a heat insulation layer, 4, a smoke exhaust pipe, 5, an induced draft fan, 6, a heat insulation cover, 7, a blanking hopper, 8, an aluminum liquid temperature probe and 9, a thermocouple.
Detailed Description
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the gas holding furnace comprises a furnace body 1, a combustion system 2 and a heat recovery barrel 3, wherein a hearth is arranged in the furnace body 1, a crucible is arranged on the hearth, not shown in the drawing, and is used for storing aluminum liquid, the combustion system 2 is arranged on the side edge of the furnace body 1, the heat recovery barrel 3 is arranged on the combustion system 2, the side edge of the heat recovery barrel 3 is connected with a smoke exhaust pipe 4, the smoke exhaust pipe 4 is connected with an induced draft fan 5, the heat recovery barrel 3 is communicated with the inside of the hearth, so that smoke is guided to be exhausted under the action of the induced draft fan 5, the top of the heat recovery barrel 3 is connected with an air pipe 31 through a one-way valve 32, a spiral pipe 33 is installed in the inside of the heat recovery barrel 3, the top of the spiral pipe 33 is communicated with the inside of the air pipe 31 through the one-way valve 32, the bottom end of the spiral pipe 33 stretches into the hearth of the furnace body 1, when the smoke is guided away, the pressure in the hearth is reduced, air is further automatically supplemented into the hearth through the spiral pipe 33, the one-way valve 32 and the air pipe 31, and when the smoke passes through the heat recovery barrel 3, the contact area with the spiral pipe 33 is large, the heat conduction coefficient is made of metal material, so that the heat in the spiral pipe 33 is high, the heat conduction efficiency is used, the heat efficiency is improved, the heat of the spiral pipe and the heat in the air and the heat of the hearth is fully heated.
The combustion system 2 comprises a pressure reducing valve 21, a gas flowmeter 22, a gas valve 23 and a burner 24 which are sequentially connected through pipelines, wherein the inlet end of the pressure reducing valve 21 is externally connected with gas supply equipment, not shown in the figure, after the pressure of the gas is regulated by the pressure reducing valve 21 and the pressure of the gas flowmeter 22 is measured, the gas enters the burner 24 through the gas valve 23, the burner 24 stretches into a hearth of the furnace body 1, the bottom end of a spiral pipe 33 is communicated with the burner 24, so that high-temperature combustion air after absorbing stored heat can enter the burner 24 to participate in combustion.
Specifically, in order to improve the utilization effect of the flue gas waste heat, the outer wall of the heat recovery barrel 3 is provided with a heat preservation layer 34 connected with the periphery for reducing outward heat dissipation.
The soup taking opening at the upper part of the front side of the furnace body 1 is covered with a heat preservation cover 6 for preserving the heat of the aluminum liquid in the crucible.
A blanking hopper 7 is arranged above the rear side of the furnace body 1, and the prescription of the blanking hopper 7 is filled.
An aluminum liquid temperature probe 8 is also arranged above the front side of the furnace body 1, and the aluminum liquid temperature probe 8 directly detects the temperature of the aluminum liquid.
A thermocouple 9 is also arranged in the hearth of the furnace body 1, and the thermocouple 9 monitors the temperature inside the hearth.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520780993.2U CN224163033U (en) | 2025-04-23 | 2025-04-23 | Gas-fired heat preservation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520780993.2U CN224163033U (en) | 2025-04-23 | 2025-04-23 | Gas-fired heat preservation furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN224163033U true CN224163033U (en) | 2026-04-24 |
Family
ID=99506715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202520780993.2U Active CN224163033U (en) | 2025-04-23 | 2025-04-23 | Gas-fired heat preservation furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN224163033U (en) |
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2025
- 2025-04-23 CN CN202520780993.2U patent/CN224163033U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant |