CN215413160U - Hot wall type vacuum industrial furnace - Google Patents
Hot wall type vacuum industrial furnace Download PDFInfo
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- CN215413160U CN215413160U CN202122123201.9U CN202122123201U CN215413160U CN 215413160 U CN215413160 U CN 215413160U CN 202122123201 U CN202122123201 U CN 202122123201U CN 215413160 U CN215413160 U CN 215413160U
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Abstract
The utility model discloses a hot wall type vacuum industrial furnace, which relates to the technical field of vacuum furnaces and comprises a jacket type vacuum furnace body, a water cooling tower and a water tank, wherein a heating chamber is arranged inside the jacket type vacuum furnace body, a heating plate is arranged on the inner wall of the heating chamber, a vacuum generator and a water temperature sensor are arranged on the surface of the jacket type vacuum furnace body, a first pipeline, a hot water pipeline and a fourth pipeline are fixedly communicated with the surface of the jacket type vacuum furnace body, the right end of the fourth pipeline is fixedly communicated with the surface of the water tank, a second pipeline is fixedly communicated with the surface of the water cooling tower and the surface of the first pipeline, and a third pipeline is fixedly communicated with the surface of the water cooling tower and the surface of the water tank. The heating device is required to continuously work with high power.
Description
Technical Field
The utility model relates to the technical field of vacuum furnaces, in particular to a hot wall type vacuum industrial furnace.
Background
The vacuum furnace generally comprises a hearth, an electric heating device, a sealed furnace shell, a vacuum system, a power supply system, a temperature control system and the like, and the industrial furnace is thermal equipment for heating materials or workpieces by using heat generated by fuel combustion or electric energy conversion in industrial production.
However, the traditional vacuum industrial furnace only adopts cold water circulation to cool, and after cooling, the temperature is easily too much, so that the heating device needs to continuously work with high power when heating in the later period, thereby causing the problem of a large amount of energy waste.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hot wall type vacuum industrial furnace, which has the effects of reducing energy consumption, saving energy and improving efficiency, and solves the problem that a heating device needs to work continuously with high power when the temperature is increased in a later period easily due to excessive temperature reduction after the temperature is reduced by only adopting cold water circulation for cooling in the traditional vacuum industrial furnace.
In order to achieve the purpose, the utility model provides the following technical scheme: a hot wall type vacuum industrial furnace comprises a jacket type vacuum furnace body, a water cooling tower and a water tank, wherein a heating chamber is arranged inside the jacket type vacuum furnace body, a heating plate is arranged on the inner wall of the heating chamber, a vacuum generator and a water temperature sensor are arranged on the surface of the jacket type vacuum furnace body, a first pipeline, a hot water pipeline and a fourth pipeline are fixedly communicated with the surface of the jacket type vacuum furnace body, the right end of the fourth pipeline is fixedly communicated with the surface of the water tank, a second pipeline is fixedly communicated with the surface of the water cooling tower and the surface of the first pipeline, a third pipeline is fixedly communicated with the surface of the water cooling tower and the surface of the water tank, the end part of the hot water pipeline is fixedly communicated with the first pipeline, cold water valves are arranged on the surfaces of the second pipeline and the fourth pipeline, and a hot water outlet pipe and a hot water inlet pipe which are connected with an external hot water source are communicated with the surface of the water cooling tower and the hot water inlet pipe, the surface of the hot water pipeline is provided with two hot water valves, and the surfaces of the hot water pipeline and the pipeline IV are respectively provided with a first power component and a second power component.
Optionally, the first power component is a water pump installed on the surface of the fourth pipeline, and the second power component is a hot water pump installed on the surface of the hot water pipeline.
Optionally, the inner wall of the jacketed vacuum furnace body is provided with a heat insulation layer, and the heat insulation layer is made of ceramic fiber.
Optionally, a vacuum gauge is mounted on the surface of the jacketed vacuum furnace body.
Optionally, the surface of the jacketed vacuum furnace body is fixedly communicated with a pressure relief pipe.
Optionally, the heating sheet is a graphite heating sheet.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, the heat transfer temperature difference between the cooling water and the furnace wall is reduced by 20-30 ℃ compared with the prior art through the heat transfer between the cold water and the hot water and the furnace wall, and the saved electric energy is considerable for vacuum industrial furnaces, particularly large vacuum furnaces, which work for dozens of hours.
Secondly, in order to prolong the service life of the heating sheet 112, the graphite heating sheet has good thermal conductivity, fast heat transfer, uniform heating, fuel saving, strong chemical stability at normal temperature and strong corrosion resistance to acid-base solution.
Drawings
FIG. 1 is an isometric view of a structure of the present invention;
FIG. 2 is a front cross-sectional view of a jacketed vacuum furnace body structure of the present invention;
fig. 3 is an enlarged view of the structure of fig. 2 according to the present invention at a.
In the figure: 1. a jacketed vacuum furnace body; 2. a water cooling tower; 3. a water tank; 4. a first pipeline; 5. a second pipeline; 6. a cold water valve; 7. a third pipeline; 8. a fourth pipeline; 9. a water pump; 11. a water temperature sensor; 12. a hot water pipe; 15. a hot water pump; 16. a hot water valve; 17. a vacuum generator; 18. a pressure relief pipe; 19. a vacuum gauge; 20. a heat-insulating layer; 111. a heating chamber; 112. and (4) heating the sheet.
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 3, the present invention provides a technical solution: a hot wall type vacuum industrial furnace comprises a jacket type vacuum furnace body 1, a water cooling tower 2 and a water tank 3, a heating chamber 111 is arranged inside the jacket type vacuum furnace body 1, a heating sheet 112 is arranged on the inner wall of the heating chamber 111, a vacuum generator 17 and a water temperature sensor 11 are arranged on the surface of the jacket type vacuum furnace body 1, a first pipeline 4, a hot water pipeline 12 and a fourth pipeline 8 are fixedly communicated with the surface of the water tank 3 at the right end of the fourth pipeline 8, a second pipeline 5 is fixedly communicated with the surface of the first pipeline 4 and the surface of the water cooling tower 2, a third pipeline 7 is fixedly communicated with the surface of the water cooling tower 2 and the surface of the water tank 3 at the same time, the end of the hot water pipeline 12 is fixedly communicated with the surface of the first pipeline 4, valves 6 are arranged on the surfaces of the second pipeline 5 and the fourth pipeline 8, a hot water outlet pipe and a hot water inlet pipe connected with an external hot water source are communicated with the surface of the hot water pipeline 12, two hot water valves 16 are arranged on the surface of a hot water pipeline 12, a first power part and a second power part are respectively arranged on the surfaces of the hot water pipeline 12 and a fourth pipeline 8, firstly, the upper limit value and the lower limit value of the temperature of a water temperature sensor 11 are set before starting equipment, then a heating sheet 112 is controlled to heat, when the water temperature sensor 11 detects that the temperature in the jacketed vacuum furnace body 1 is lower than the lower limit value set by the water temperature sensor 11, the cold water valve 6 and the first power part are closed, the hot water valve 16 and the second power part are opened, at the moment, cooling water is guided into the jacketed vacuum furnace body 1 through the action of a hot water pump 15, the temperature in the jacketed vacuum furnace body 1 can rise along with the time, when the temperature in the jacketed vacuum furnace body 1 reaches the upper limit value set by the water temperature sensor 11, the hot water valve 16 and the second power part are closed, and simultaneously, the first power part is opened, at the moment, hot water in the furnace body jacket can be cooled in the water cooling tower 2 from the first pipeline 4 to the second pipeline 5, a cold water circulating system works, under the action of the water cooling tower 2, the water temperature can be gradually reduced, when the temperature in the jacket type vacuum furnace body 1 is lower than the lower limit value set by the water temperature sensor 11, the next circulation is carried out again, the heat transfer temperature difference between the cooling water and the furnace wall is reduced by 20-30 ℃ compared with the prior art, for a vacuum industrial furnace, particularly a large vacuum furnace, the furnace works for tens of hours, and the saved electric energy can be very considerable.
In order to drive the cold water and the hot water to circularly cool and heat, the first power part is a water pump 9 arranged on the surface of the fourth pipeline 8, and the second power part is a hot water pump 15 arranged on the surface of the hot water pipeline 12.
In order to prevent the high temperature in the furnace body from being transmitted to the surface of the device and scalding nearby people, further, the inner wall of the jacketed vacuum furnace body 1 is provided with the heat insulation layer 20, the heat insulation layer 20 is made of ceramic fibers, and the ceramic fiber material has the advantages of light weight, good heat insulation performance, good thermal stability and good chemical stability and can block the internal high temperature from being transmitted to the outside.
In order to observe the working state of the vacuum generator 17, further, a vacuum gauge 19 is installed on the surface of the jacketed vacuum furnace body 1.
In order to prevent the pressure inside the jacketed vacuum furnace body 1 from being different from a set pressure value, further, the surface of the jacketed vacuum furnace body 1 is fixedly communicated with a pressure relief pipe 18, and the pressure can be timely discharged through the pressure relief pipe 18, so that the jacketed vacuum furnace body 1 is prevented from being exploded.
In order to prolong the service life of the heating sheet 112, the heating sheet 112 is further a graphite heating sheet, which has good thermal conductivity, fast heat transfer, uniform heating, fuel saving, strong chemical stability at normal temperature and strong corrosion resistance to acid and alkali solutions.
The working principle is as follows: when the hot wall type vacuum industrial furnace is used, firstly, the water temperature sensor 11 is set to have the upper limit value and the lower limit value of the temperature before starting the equipment, then the heating sheet 112 is controlled to heat, when the water temperature sensor 11 detects that the temperature in the jacket type vacuum furnace body 1 is lower than the lower limit value set by the water temperature sensor 11, the cold water valve 6 and the water pump 9 are closed, the hot water valve 16 and the hot water pump 15 are opened, at the moment, the cooling water is guided into the jacket type vacuum furnace body 1 through the action of the hot water pump 15, the temperature in the jacket type vacuum furnace body 1 is increased along with the time, when the temperature in the jacket type vacuum furnace body 1 reaches the upper limit value set by the water temperature sensor 11, the hot water valve 16 and the hot water pump 15 are closed, meanwhile, the cold water valve 6 and the water pump 9 are opened, at the moment, the hot water in the jacket of the furnace body is cooled in the water cooling tower 2 along the pipeline I4 to the pipeline II 5, and a cold water circulation system is operated, under the action of the water cooling tower 2, the water temperature can be gradually reduced, when the temperature in the jacketed vacuum furnace body 1 is lower than the lower limit value set by the water temperature sensor 11, the next circulation is entered again, the heat transfer temperature difference between the cooling water and the furnace wall is reduced by 20-30 ℃ compared with the prior art, and for vacuum industrial furnaces, particularly large vacuum furnaces, the electric energy saved by the vacuum industrial furnace can be considerable after tens of hours of operation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a hot wall type vacuum industrial furnace, includes jacketed vacuum furnace body (1), its characterized in that: the device is characterized by further comprising a water cooling tower (2) and a water tank (3), a heating chamber (111) is arranged inside the jacketed vacuum furnace body (1), a heating plate (112) is arranged on the inner wall of the heating chamber (111), a vacuum generator (17) and a water temperature sensor (11) are arranged on the surface of the jacketed vacuum furnace body (1), a first pipeline (4), a hot water pipeline (12) and a fourth pipeline (8) are fixedly communicated with the surface of the water tank (3), a second pipeline (5) is fixedly communicated with the surface of the first pipeline (4) and the surface of the water cooling tower (2) and the surface of the water tank (3) respectively, the end of the hot water pipeline (12) is fixedly communicated with the surface of the first pipeline (4), the surface of the second pipeline (5) and the surface of the fourth pipeline (8) are both provided with cold water valves (6), the surface of the hot water pipeline (12) is communicated with a hot water outlet pipe and a hot water inlet pipe which are connected with an external hot water source, the surface of the hot water pipeline (12) is provided with two hot water valves (16), and the surface of the hot water pipeline (12) and the surface of the fourth pipeline (8) are respectively provided with a first power part and a second power part.
2. A hot wall vacuum industrial furnace according to claim 1, wherein: the first power part is a water pump (9) arranged on the surface of the fourth pipeline (8), and the second power part is a hot water pump (15) arranged on the surface of the hot water pipeline (12).
3. A hot wall vacuum industrial furnace according to claim 2, characterized in that: the inner wall of the jacketed vacuum furnace body (1) is provided with a heat-insulating layer (20), and the heat-insulating layer (20) is made of ceramic fibers.
4. A hot wall vacuum industrial furnace according to claim 3, wherein: and a vacuum meter (19) is arranged on the surface of the jacketed vacuum furnace body (1).
5. A hot wall vacuum industrial furnace according to any of claims 2-4, characterized in that: and a pressure relief pipe (18) is fixedly communicated with the surface of the jacketed vacuum furnace body (1).
6. A hot wall vacuum industrial furnace according to claim 3, wherein: the heating sheet (112) is a graphite heating sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123201.9U CN215413160U (en) | 2021-09-03 | 2021-09-03 | Hot wall type vacuum industrial furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122123201.9U CN215413160U (en) | 2021-09-03 | 2021-09-03 | Hot wall type vacuum industrial furnace |
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| CN215413160U true CN215413160U (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122123201.9U Active CN215413160U (en) | 2021-09-03 | 2021-09-03 | Hot wall type vacuum industrial furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371433A (en) * | 2022-10-26 | 2022-11-22 | 河南天利热工装备股份有限公司 | Quick cooling industrial furnace |
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2021
- 2021-09-03 CN CN202122123201.9U patent/CN215413160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371433A (en) * | 2022-10-26 | 2022-11-22 | 河南天利热工装备股份有限公司 | Quick cooling industrial furnace |
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