CN113834213A - High-efficient safe high pressure nitrogen heater - Google Patents
High-efficient safe high pressure nitrogen heater Download PDFInfo
- Publication number
- CN113834213A CN113834213A CN202111095655.8A CN202111095655A CN113834213A CN 113834213 A CN113834213 A CN 113834213A CN 202111095655 A CN202111095655 A CN 202111095655A CN 113834213 A CN113834213 A CN 113834213A
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- Prior art keywords
- nitrogen
- packaging part
- pressure
- connecting piece
- heater
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/02—Casings; Cover lids; Ornamental panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1863—Arrangement or mounting of electric heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H2250/00—Electrical heat generating means
- F24H2250/02—Resistances
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
Abstract
The invention provides a high-efficiency and safe high-pressure nitrogen heater, which belongs to the technical field of nitrogen heaters and comprises a first connecting piece, a heating part, a second connecting piece and a packaging part, wherein the first connecting piece and the second connecting piece are respectively arranged at two ends of the packaging part and are used for being connected with a nitrogen conveying pipe, a first nitrogen circulation area is arranged on the inner side of the packaging part, and a second nitrogen circulation area is arranged on the outer side of the packaging part. The embodiment of the invention can work under the high pressure of 25MPa, the flow rate of high-pressure nitrogen can reach 40 kg/min, the heating power can reach 120KW, all electric power can be absorbed by the nitrogen to realize 100% conversion of electric energy, and low-temperature nitrogen can simultaneously circulate along the inside and the outside of the packaging part to ensure that the packaging part is in a cold state, so that the requirement of the packaging part on the material strength can be reduced while heat loss is avoided, and the packaging part does not need to use high-temperature-resistant alloy materials, thereby reducing the cost.
Description
Technical Field
The invention belongs to the technical field of nitrogen heaters, and particularly relates to a high-efficiency and safe high-pressure nitrogen heater.
Background
The nitrogen heater is mainly used for heating required nitrogen from an initial temperature to a required temperature, and is widely applied to many scientific research and production laboratories of aerospace, weapon industry, chemical industry, colleges and universities and the like.
The existing nitrogen heater has certain defects, namely high temperature and high pressure can be generated in the nitrogen heating process, so that the requirement on the shell material for packaging nitrogen is high, and the cost of the nitrogen heater is high.
Disclosure of Invention
In view of the above deficiencies of the prior art, an embodiment of the present invention provides a high-efficiency and safe high-pressure nitrogen heater.
In order to solve the technical problems, the invention provides the following technical scheme:
a high-efficiency and safe high-pressure nitrogen heater comprises a first connecting piece, a heating part, a second connecting piece and a packaging part,
the first connecting piece and the second connecting piece are respectively arranged at two ends of the packaging part and are used for being connected with a nitrogen conveying pipe,
a first nitrogen gas circulation area is arranged on the inner side of the packaging part, a second nitrogen gas circulation area is arranged on the outer side of the packaging part,
the heating part is arranged in the packaging part and used for heating the nitrogen flowing through the first nitrogen flowing area.
As a further improvement of the invention: the low-temperature nitrogen in the first nitrogen flowing area can be output by the second connecting piece after being heated by the heating part and is mixed with the low-temperature nitrogen in the second nitrogen flowing area.
As a further improvement of the invention: the heating part comprises a ceramic heating core and a binding post connected with the ceramic heating core,
and one end of the binding post, which is far away from the ceramic heating core, is connected with an external power supply mechanism.
As a further improvement of the invention: and a sensor is arranged on the second connecting piece and used for detecting the temperature and the pressure of the nitrogen.
As a still further improvement of the invention: the first connecting piece is connected with the packaging part through a shell, and one end, far away from the ceramic heating core, of the binding post extends to the outside from the shell and is connected with an external power supply mechanism.
As a still further improvement of the invention: the first connecting piece and the second connecting piece are flanges.
As a still further improvement of the invention: the shell is further provided with a pressure switch, and the pressure switch is used for detecting the pressure of the low-temperature nitrogen entering the first nitrogen circulation area.
As a still further improvement of the invention: the ratio of the low temperature nitrogen entering the first nitrogen flow field to the low temperature nitrogen entering the second nitrogen flow field was 19: 1.
As a still further improvement of the invention: the ceramic heating core is of a honeycomb structure.
As a still further improvement of the invention: the packaging part is of a cylindrical structure and is made of stainless steel.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention can work under the high pressure of 25MPa, the flow rate of high-pressure nitrogen can reach 40 kg/min, the heating power can reach 120KW, all electric power can be absorbed by the nitrogen to realize 100% conversion of electric energy, and low-temperature nitrogen can simultaneously circulate along the inside and the outside of the packaging part to ensure that the packaging part is in a cold state, so that the requirement of the packaging part on the material strength can be reduced while heat loss is avoided, and the packaging part does not need to use high-temperature-resistant alloy materials, thereby reducing the cost.
Drawings
FIG. 1 is a schematic diagram of a high-efficiency and safe high-pressure nitrogen heater;
in the figure: 1-a first connecting piece, 2-a shell, 3-a ceramic heating core, 4-a second connecting piece, 5-a wiring terminal, 6-a pressure switch and 7-a sensor.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
Referring to fig. 1, the embodiment provides a high-efficiency and safe high-pressure nitrogen heater, which includes a first connecting member 1, a heating portion, a second connecting member 4 and a packaging portion, wherein the first connecting member 1 and the second connecting member 4 are respectively disposed at two ends of the packaging portion and are used for being connected to a nitrogen conveying pipe, a first nitrogen flowing region is disposed inside the packaging portion, a second nitrogen flowing region is disposed outside the packaging portion, and the heating portion is disposed inside the packaging portion and is used for heating nitrogen flowing through the first nitrogen flowing region.
After the packaging part is communicated with the nitrogen conveying pipe, the low-temperature nitrogen can be divided into two paths, one path can enter a first nitrogen circulation area on the inner side of the packaging part, the other path can enter a second nitrogen circulation area on the outer side of the packaging part, the low-temperature nitrogen entering the first nitrogen circulation area can be heated to 500 ℃ by the heating part, and the low-temperature nitrogen entering the second nitrogen circulation area can ensure that the packaging part is in a cold state, so that the requirement of the packaging part on the material strength can be reduced while the heat loss is avoided, the packaging part does not need to use high-temperature-resistant alloy materials, and the cost is reduced.
In one embodiment, the low-temperature nitrogen gas inside the first nitrogen gas flowing region can be output from the second connecting member 4 after being heated by the heat generating part and mixed with the low-temperature nitrogen gas inside the second nitrogen gas flowing region to prevent the heat of the nitrogen gas from being radiated outward.
Referring to fig. 1, in an embodiment, the heat generating portion includes a ceramic heat generating core 3 and a terminal 5 connected to the ceramic heat generating core 3, wherein an end of the terminal 5 away from the ceramic heat generating core 3 is connected to an external power supply mechanism (not shown), and the external power supply mechanism supplies power to the ceramic heat generating core 3 to drive the ceramic heat generating core 3 to operate, so as to heat the low-temperature nitrogen flowing through the first nitrogen flowing region.
Referring to fig. 1, in one embodiment, a sensor 7 is disposed on the second connecting member 4, and the sensor 7 is used for detecting the temperature and the pressure of the nitrogen gas.
Referring to fig. 1, in an embodiment, the first connecting member 1 and the second connecting member 4 may be flanges, or may be other structures capable of achieving pipeline communication, which is not limited herein.
Referring to fig. 1, in an embodiment, the first connecting member 1 is connected to the packaging portion through a casing 2, and one end of the terminal 5, which is away from the ceramic heating core 3, extends from the casing 2 to the outside and is connected to an external power supply mechanism.
Referring to fig. 1, in an embodiment, a pressure switch 6 is further disposed on the housing 2, and the pressure switch 6 is used for detecting the pressure of the low-temperature nitrogen gas entering the first nitrogen gas flowing area.
In one embodiment, after the nitrogen gas is introduced, the pressure between the first nitrogen gas flowing area and the second nitrogen gas flowing area is the same so as to ensure that the internal pressure and the external pressure of the packaging part are balanced and avoid the deformation of the packaging part under pressure, and the ratio of the low-temperature nitrogen gas entering the first nitrogen gas flowing area to the low-temperature nitrogen gas entering the second nitrogen gas flowing area is 19: 1.
In one embodiment, the ceramic heating core 3 has a honeycomb structure to improve heat exchange efficiency, so that the temperature of the ceramic heating core 3 does not exceed 800 ℃ even if high-temperature nitrogen gas of 500 ℃ is output, and the ultra-long service life of the ceramic heating core 3 is ensured.
In one embodiment, the packaging part is a cylindrical structure and is made of stainless steel.
The embodiment of the invention can work under the high pressure of 25MPa, the flow rate of high-pressure nitrogen can reach 40 kg/min, the heating power can reach 120KW, all electric power can be absorbed by the nitrogen to realize 100% conversion of electric energy, and low-temperature nitrogen can simultaneously circulate along the inside and the outside of the packaging part to ensure that the packaging part is in a cold state, so that the requirement of the packaging part on the material strength can be reduced while heat loss is avoided, and the packaging part does not need to use high-temperature-resistant alloy materials, thereby reducing the cost.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (10)
1. A high-efficiency safe high-pressure nitrogen heater is characterized by comprising a first connecting piece, a heating part, a second connecting piece and a packaging part,
the first connecting piece and the second connecting piece are respectively arranged at two ends of the packaging part and are used for being connected with a nitrogen conveying pipe,
a first nitrogen gas circulation area is arranged on the inner side of the packaging part, a second nitrogen gas circulation area is arranged on the outer side of the packaging part,
the heating part is arranged in the packaging part and used for heating the nitrogen flowing through the first nitrogen flowing area.
2. A high-efficiency safe high-pressure nitrogen heater as claimed in claim 1, wherein the low-temperature nitrogen gas in the first nitrogen gas flowing region is heated by the heat generating part and then can be discharged from the second connecting member and mixed with the low-temperature nitrogen gas in the second nitrogen gas flowing region.
3. A high-efficiency safe high-pressure nitrogen heater as claimed in claim 1, wherein said heat generating part comprises a ceramic heat generating core and a binding post connected with said ceramic heat generating core,
and one end of the binding post, which is far away from the ceramic heating core, is connected with an external power supply mechanism.
4. A high efficiency and safety high pressure nitrogen heater according to claim 1, wherein said second connecting member is provided with a sensor for detecting the temperature and pressure of nitrogen.
5. A high-efficiency safe high-pressure nitrogen heater as claimed in claim 3, wherein the first connecting piece is connected with the packaging part through a shell, and one end of the binding post far away from the ceramic heating core extends from the shell to the outside and is connected with an external power supply mechanism.
6. A high efficiency safety high pressure nitrogen heater according to claim 5, wherein the first connecting member and the second connecting member are flanges.
7. A high efficiency safe high pressure nitrogen heater as claimed in claim 5, wherein the shell is further provided with a pressure switch for detecting the pressure of the low temperature nitrogen entering the first nitrogen gas flow area.
8. A high efficiency safety high pressure nitrogen heater as claimed in claim 1, wherein the ratio of the low temperature nitrogen entering the first nitrogen flow area to the low temperature nitrogen entering the second nitrogen flow area is 19: 1.
9. A high efficiency safety high pressure nitrogen heater according to claim 3, wherein said ceramic heating core is of honeycomb structure.
10. A high efficiency safety high pressure nitrogen heater as claimed in any one of claims 1 to 9, wherein said enclosure is cylindrical and made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111095655.8A CN113834213B (en) | 2021-09-18 | 2021-09-18 | High-efficient safe high pressure nitrogen heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111095655.8A CN113834213B (en) | 2021-09-18 | 2021-09-18 | High-efficient safe high pressure nitrogen heater |
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| Publication Number | Publication Date |
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| CN113834213A true CN113834213A (en) | 2021-12-24 |
| CN113834213B CN113834213B (en) | 2022-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111095655.8A Active CN113834213B (en) | 2021-09-18 | 2021-09-18 | High-efficient safe high pressure nitrogen heater |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06216056A (en) * | 1993-01-19 | 1994-08-05 | Kokusai Electric Co Ltd | Vertical furnace |
| CN101613103A (en) * | 2009-07-27 | 2009-12-30 | 潍坊市北海精细陶瓷有限公司 | Fire the method for silicon carbide reaction-sintered with carbon tube furnace |
| CN103943538A (en) * | 2014-04-25 | 2014-07-23 | 苏州天霖电子科技有限公司 | Nitrogen heating device |
| CN104197511A (en) * | 2014-09-15 | 2014-12-10 | 芜湖长启炉业有限公司 | Spiral nitrogen heating tank |
| KR101623913B1 (en) * | 2016-01-29 | 2016-05-24 | 최순기 | Portable heater |
| CN106369819A (en) * | 2016-08-25 | 2017-02-01 | 中国科学院合肥物质科学研究院 | Casing pipe type gas electric heating device |
| CN107504684A (en) * | 2017-09-22 | 2017-12-22 | 广州伟民能源科技有限公司 | A kind of general electric power heating system in north and south |
| CN207395190U (en) * | 2017-10-20 | 2018-05-22 | 辽宁科技大学 | A kind of fuel gas hot-blast stove |
| CN207975838U (en) * | 2018-02-28 | 2018-10-16 | 苏信瑀 | Gas-heating apparatus |
| CN211716872U (en) * | 2020-02-25 | 2020-10-20 | 扬州思普尔科技有限公司 | Low-power quick nitrogen heating device |
| CN213542853U (en) * | 2020-11-16 | 2021-06-25 | 盐城国科机械制造有限公司 | Electric heating air heating tube |
-
2021
- 2021-09-18 CN CN202111095655.8A patent/CN113834213B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06216056A (en) * | 1993-01-19 | 1994-08-05 | Kokusai Electric Co Ltd | Vertical furnace |
| CN101613103A (en) * | 2009-07-27 | 2009-12-30 | 潍坊市北海精细陶瓷有限公司 | Fire the method for silicon carbide reaction-sintered with carbon tube furnace |
| CN103943538A (en) * | 2014-04-25 | 2014-07-23 | 苏州天霖电子科技有限公司 | Nitrogen heating device |
| CN104197511A (en) * | 2014-09-15 | 2014-12-10 | 芜湖长启炉业有限公司 | Spiral nitrogen heating tank |
| KR101623913B1 (en) * | 2016-01-29 | 2016-05-24 | 최순기 | Portable heater |
| CN106369819A (en) * | 2016-08-25 | 2017-02-01 | 中国科学院合肥物质科学研究院 | Casing pipe type gas electric heating device |
| CN107504684A (en) * | 2017-09-22 | 2017-12-22 | 广州伟民能源科技有限公司 | A kind of general electric power heating system in north and south |
| CN207395190U (en) * | 2017-10-20 | 2018-05-22 | 辽宁科技大学 | A kind of fuel gas hot-blast stove |
| CN207975838U (en) * | 2018-02-28 | 2018-10-16 | 苏信瑀 | Gas-heating apparatus |
| CN211716872U (en) * | 2020-02-25 | 2020-10-20 | 扬州思普尔科技有限公司 | Low-power quick nitrogen heating device |
| CN213542853U (en) * | 2020-11-16 | 2021-06-25 | 盐城国科机械制造有限公司 | Electric heating air heating tube |
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| Publication number | Publication date |
|---|---|
| CN113834213B (en) | 2022-08-26 |
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