CN112197427A - Nitrogen heater - Google Patents
Nitrogen heater Download PDFInfo
- Publication number
- CN112197427A CN112197427A CN202011052931.8A CN202011052931A CN112197427A CN 112197427 A CN112197427 A CN 112197427A CN 202011052931 A CN202011052931 A CN 202011052931A CN 112197427 A CN112197427 A CN 112197427A
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- China
- Prior art keywords
- box body
- heater
- nitrogen
- pipe
- extends
- 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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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
- F24H3/002—Air heaters using electric 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
- F24H9/00—Details
- F24H9/0052—Details for air heaters
- F24H9/0057—Guiding 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
- F24H9/02—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
-
- 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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- 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)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The invention relates to a nitrogen heater, which comprises a box body, a flow guide pipe, a heating pipe and a temperature relay, wherein an air inlet pipe is arranged at one end of the box body, and one end part of the air inlet pipe extends into the box body and is communicated with the box body; the other end of the box body is provided with an air outlet pipe, and one end part of the air outlet pipe extends into the box body and is communicated with the box body; the upper end of the box body is provided with a heater, the heater is connected with the box body, and a heating pipe of the heater extends into the box body in a circuitous shape; a flow guide pipe is arranged in the box body, one end part of the flow guide pipe is communicated with the air inlet pipe, and the other end of the flow guide pipe extends to the other end in the box body; and the guide pipe is positioned below the heating pipe; the temperature relay is arranged at the air outlet pipe, the sensing end of the temperature relay extends into the air outlet pipe, and the heater is connected with an external power supply through the temperature relay. The invention can improve the heating efficiency of nitrogen, the nitrogen is heated more uniformly, and the temperature of the output nitrogen is more stable.
Description
Technical Field
The invention relates to the technical field of nitrogen heating, in particular to a nitrogen heater.
Background
In industrial processes, nitrogen, of the formula N, is often heated2Typically a colorless, odorless gas, and is generally non-toxic. The nitrogen accounts for 77.12% (volume fraction) of the total amount of the atmosphereIt is the main component of air. When cooled to-185.6 deg.C under normal atmospheric pressure, the liquid becomes colorless liquid, and when cooled to-217.7 deg.C, the liquid nitrogen becomes snow-like solid.
The nitrogen has inactive chemical property, is difficult to react with other substances at normal temperature, can be chemically changed with certain substances under the conditions of high temperature and high energy, and is easy to physically explode due to volume expansion and sealing of a heating container when the nitrogen is heated; however, the existing nitrogen heater still has the problems of poor heating uniformity and low safety.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the above-mentioned problems in the prior art. Therefore, an object of the present invention is to provide a nitrogen heater which can improve the heating efficiency of nitrogen, and has more uniform heating and more stable temperature.
The technical scheme for solving the technical problems is as follows: a nitrogen heater comprises a box body, a flow guide pipe, a heater and a temperature relay, wherein an air inlet pipe is arranged at one end of the box body, and one end part of the air inlet pipe extends into the box body and is communicated with the inside of the box body; the other end of the box body is provided with an air outlet pipe, and one end part of the air outlet pipe extends into the box body and is communicated with the box body;
the heater is fixedly arranged at the upper end of the box body, and a heating pipe of the heater extends into the box body; the heating pipe is horizontally arranged in the box body in a circuitous shape;
the draft tube is horizontally arranged in the box body, one end of the draft tube is communicated with the air inlet pipe, and the other end of the draft tube extends to the middle part in the box body; the flow guide pipe is positioned below the heater;
the temperature relay is fixedly arranged on the air outlet pipe, the sensing end of the temperature relay extends into the air outlet pipe, and the heater is connected with an external power supply through the temperature relay.
The invention has the beneficial effects that: the guide pipe guides and outputs the nitrogen to the heating pipe, so that the nitrogen is in contact with the heating pipe, and the nitrogen heating efficiency is improved; the airflow in the box body continuously swirls, the nitrogen in the box body is heated more uniformly, and the heated nitrogen is output through the air outlet pipe; the temperature of the nitrogen output by the air outlet pipe is more stable.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, a pressure regulating valve is arranged at the lower end of the box body and communicated with the inside of the box body through a pipeline; the box body is provided with a limiting rod, and the limiting rod is fixedly connected with the box body; the lower end of the limiting rod extends to the lower part of the pressure regulating valve.
The beneficial effect of adopting the further scheme is that: the pressure regulating valve automatically regulates the air pressure in the box body, and the explosion-proof performance is improved; the limiting rod can limit the valve opening angle of the pressure regulating valve, so that the pressure regulating valve can regulate air pressure in the box body, the pressure regulating valve can be stably regulated, and the service life is long.
Further, the pressure regulating valve comprises an annular base body, a cover plate and a magnet ring, wherein the base body is arranged at the upper end of the pipeline and is fixedly connected with the pipeline in a sealing manner; a first annular table and a second annular table are arranged at the upper end of the base body along the inner circle of the base body, and the first annular table is positioned below the second annular table; the magnet ring is fixedly arranged in the second annular table; the cover plate is provided with an annular groove along the edge thereof, and the annular groove is fixedly sleeved with a sealing ring; the cover plate is limited in the first annular table, and one end of the cover plate is connected with the inner wall of the base body in a hinge mode; the magnet ring is magnetically attracted to the cover plate, and the cover plate covers the inner circle of the base body through the sealing ring.
The beneficial effect of adopting the further scheme is that: the cover plate is used for sealing the base body, and the sealing ring is used for sealing the base body; can realize adjusting the atmospheric pressure of box, can also realize sealing the box.
Furthermore, a plurality of air holes are formed in the flow guide pipe and are sequentially arranged at equal intervals along the axial direction of the flow guide pipe.
The beneficial effect of adopting the further scheme is that: a plurality of gas pockets can be exported the leading-in nitrogen gas of honeycomb duct to the heating pipe on for nitrogen gas can rapid heating up, can promote the nitrogen gas after the heating simultaneously and constantly swirl in the box, and the air current constantly contacts the fusion, makes the temperature of nitrogen gas more even.
Further, a heat insulation layer is arranged on the inner wall of the box body, and the heat insulation layer is fixedly connected with the inside of the box body.
The beneficial effect of adopting the further scheme is that: the heat preservation can keep warm in the box for the box remains stable, and the nitrogen gas rapid heating up of being convenient for.
Furthermore, the top and the bottom of the inner side of the heat-insulating layer are both in arc structures.
The beneficial effect of adopting the further scheme is that: the nitrogen gas flow is enabled to continuously swirl at the top and the bottom of the heat insulation layer, the gas flow mixing is accelerated, and the temperature uniformity of the gas flow is improved.
Drawings
FIG. 1 is a schematic structural view of a nitrogen heater according to the present invention;
fig. 2 is a schematic structural view of the pressure regulating valve of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a box body 2, a flow guide pipe 2.1 and air holes;
3. a heater 3.1, a heating pipe;
4. a temperature relay 5, an air inlet pipe 6 and an air outlet pipe;
7. the device comprises a pressure regulating valve 7.1, a base body 7.2, a cover plate 7.3 and a magnet ring;
8. a limiting rod 9 and a heat insulation layer.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1 and 2, the nitrogen heater comprises a box body 1, a flow guide pipe 2, a heater 3 and a temperature relay 4, wherein an air inlet pipe 5 is arranged at one end of the box body 1, and one end part of the air inlet pipe 5 extends into the box body 1 and is communicated with the inside of the box body 1; the other end of the box body 1 is provided with an air outlet pipe 6, and one end part of the air outlet pipe 6 extends into the box body 1 and is communicated with the box body 1;
the heater 3 is fixedly arranged at the upper end of the box body 1, and a heating pipe 3.1 of the heater 3 extends into the box body 1; the heating pipe 3.1 is horizontally arranged in the box body 1 in a circuitous shape;
the draft tube 2 is horizontally arranged in the box body 1, one end part of the draft tube 2 is communicated with the air inlet pipe 5, and the other end of the draft tube 2 extends to the middle part in the box body 1; and the draft tube 2 is positioned below the heater 3;
the temperature relay 4 is fixedly arranged on the air outlet pipe, the sensing end of the temperature relay 4 extends into the air outlet pipe 6, and the heater 3 is connected with an external power supply through the temperature relay 4.
Introducing nitrogen through the air inlet pipe 5, and introducing the nitrogen into the box body 1 through the guide pipe 2; the heater 3 is electrified, and the nitrogen in the box body 1 is heated by the heating pipe 3.1; the guide pipe 2 guides and outputs the nitrogen to the position of the heating pipe 3.1, so that the nitrogen contacts the heating pipe 3.1, and the heating efficiency of the nitrogen is improved; the heated nitrogen impacts the top of the inner side of the box body 1 in the box body 1 and swirls to the bottom of the box body 1 along the inner wall of the box body 1, so that airflow in the box body 1 is swirled continuously, the nitrogen in the box body 1 is heated more uniformly, and the nitrogen is output through the air outlet pipe 6 after being heated;
In the above embodiment, the lower end of the box body 1 is provided with the pressure regulating valve 7, and the pressure regulating valve 7 is communicated with the inside of the box body 1 through a pipeline; a limiting rod 8 is arranged on the box body 1, and the limiting rod 8 is fixedly connected with the box body 1; the lower end of the limiting rod 8 extends to the lower part of the pressure regulating valve 7.
When the nitrogen is heated in the box body 1, the volume of the heated nitrogen expands; when the pressure in the box body 1 is overlarge, the pressure regulating valve 7 automatically regulates the air pressure in the box body 1, so that the explosion-proof performance is improved; the limiting rod 8 can limit the valve opening angle of the pressure regulating valve 7, so that the pressure regulating valve 7 can regulate the air pressure in the box body 1, the stable regulation of the pressure regulating valve 7 can be guaranteed, and the service life is long.
In the above embodiment, the pressure regulating valve 7 includes an annular base body 7.1, a cover plate 7.2 and a magnet ring 7.3, and the base body 7.1 is disposed at the upper end of the pipe and is fixedly connected with the pipe in a sealing manner; a first annular table and a second annular table are arranged at the upper end of the base body 7.1 along the inner circle of the base body, and the first annular table is positioned below the second annular table; the magnet ring 7.3 is fixedly arranged in the second annular table; the cover plate 7.2 is provided with an annular groove along the edge thereof, and a sealing ring 7.4 is fixedly sleeved on the annular groove; the cover plate 7.2 is limited in the first annular table, and one end part of the cover plate 7.2 is connected with the inner wall of the base body 7.1 in a hinge mode; the magnet ring 7.3 magnetically attracts the cover plate 7.2, and the cover plate 7.2 covers the inner circle of the base body 7.1 through the sealing ring 7.4. The cover plate 7.2 is made of a ferrous material.
When the pressure in the box body 1 is overlarge, impact is generated on the cover plate 7.2, the action force of the magnetic ring 7.3 on the cover plate 7.2 is overcome, so that the cover plate 7.2 is opened, and partial nitrogen in the box body 1 is discharged through the pipeline and the base body 7.1; the air pressure in the box body 1 can be kept stable; when the air pressure in the box body 1 is recovered to be within the set threshold value, the magnetic field acting force of the magnet ring 7.3 on the cover plate 7.2 is larger than the gravity of the cover plate 7.2 and the impact force of nitrogen on the cover plate 7.2 is generated, the cover plate 7.2 seals the base body 7.1, and the base body 7.1 is sealed by the sealing ring 7.4; can realize adjusting the atmospheric pressure of box 1, can also realize sealing up box 1.
In the above embodiment, the draft tube 2 is provided with a plurality of air holes 2.1, and the air holes 2.1 are sequentially and equidistantly arranged along the axial direction of the draft tube 2. A plurality of said air holes 2.1 are directed towards the heating tube 3.1.
A plurality of gas pockets 2.1 can export the leading-in nitrogen gas of honeycomb duct 2 to heating pipe 3.1 on for nitrogen gas can rapid heating up, can promote the continuous whirl of nitrogen gas after the heating in box 1 simultaneously, and the air current constantly contacts the fusion, makes the temperature of nitrogen gas more even.
In the above embodiment, the inner wall of the box body 1 is provided with the heat insulation layer 9, and the heat insulation layer 9 is fixedly connected with the inside of the box body 1.
The heat preservation layer 9 can preserve heat in the box body 1, so that the box body 1 is kept stable, and nitrogen can be conveniently and rapidly heated.
In the above embodiment, the top and the bottom of the inner side of the insulating layer 9 are both in a circular arc structure.
The nitrogen gas flow is enabled to continuously swirl at the top and the bottom of the heat preservation layer 9, the gas flow mixing is accelerated, and the temperature uniformity of the gas flow is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A nitrogen heater, characterized by: the device comprises a box body (1), a flow guide pipe (2), a heater (3) and a temperature relay (4), wherein an air inlet pipe (5) is arranged at one end of the box body (1), and one end part of the air inlet pipe (5) extends into the box body (1) and is communicated with the inside of the box body (1); an air outlet pipe (6) is arranged at the other end of the box body (1), and one end part of the air outlet pipe (6) extends into the box body (1) and is communicated with the box body (1);
the heater (3) is fixedly arranged at the upper end of the box body (1), and a heating pipe (3.1) of the heater (3) extends into the box body (1); the heating pipe (3.1) is horizontally arranged in the box body (1) in a circuitous shape;
the draft tube (2) is horizontally arranged in the box body (1), one end part of the draft tube (2) is communicated with the air inlet pipe (5), and the other end of the draft tube extends to the middle part in the box body (1); the guide pipe (2) is positioned below the heater (3);
the temperature relay (4) is fixedly arranged on the air outlet pipe, the sensing end of the temperature relay (4) extends into the air outlet pipe (6), and the heater (3) is connected with an external power supply through the temperature relay (4).
2. The nitrogen heater of claim 1, wherein: the lower end of the box body (1) is provided with a pressure regulating valve (7), and the pressure regulating valve (7) is communicated with the inside of the box body (1) through a pipeline; a limiting rod (8) is arranged on the box body (1), and the limiting rod (8) is fixedly connected with the box body (1); the lower end part of the limiting rod (8) extends to the lower part of the pressure regulating valve (7).
3. A nitrogen heater according to claim 2, wherein: the pressure regulating valve (7) comprises an annular base body (7.1), a cover plate (7.2) and a magnet ring (7.3), wherein the base body (7.1) is arranged at the upper end of the pipeline and is fixedly connected with the pipeline in a sealing manner; a first annular table and a second annular table are arranged at the upper end part of the base body (7.1) along the inner circle of the base body, and the first annular table is positioned below the second annular table; the magnet ring (7.3) is fixedly arranged in the second annular table; the cover plate (7.2) is provided with an annular groove along the edge thereof, and the annular groove is fixedly sleeved with a sealing ring (7.4); the cover plate (7.2) is limited in the first annular table, and one end part of the cover plate (7.2) is connected with the inner wall of the base body (7.1) in a hinge mode; the magnet ring (7.3) is magnetically attracted to the cover plate (7.2), and the cover plate (7.2) covers the inner circle of the base body (7.1) through the sealing ring (7.4).
4. The nitrogen heater of claim 1, wherein: the honeycomb duct (2) is provided with a plurality of air holes (2.1), and the plurality of air holes (2.1) are arranged at intervals along the axial direction of the honeycomb duct (2) in sequence.
5. The nitrogen heater of claim 1, wherein: the heat insulation layer (9) is arranged on the inner wall of the box body (1), and the heat insulation layer (9) is fixedly connected with the inside of the box body (1).
6. A nitrogen heater according to claim 5, wherein: the top and the bottom of the inner side of the heat-insulating layer (9) are both in arc structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052931.8A CN112197427A (en) | 2020-09-29 | 2020-09-29 | Nitrogen heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011052931.8A CN112197427A (en) | 2020-09-29 | 2020-09-29 | Nitrogen heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112197427A true CN112197427A (en) | 2021-01-08 |
Family
ID=74007032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011052931.8A Withdrawn CN112197427A (en) | 2020-09-29 | 2020-09-29 | Nitrogen heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112197427A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0240450A (en) * | 1988-07-29 | 1990-02-09 | Nishimura Denki Kk | Hot air generating device |
| JP2008039258A (en) * | 2006-08-03 | 2008-02-21 | Sooramu Kk | Clean heater |
| CN103244721A (en) * | 2013-05-09 | 2013-08-14 | 三一汽车制造有限公司 | Powder tank safety valve, powder tank and stirring station |
| CN104633197A (en) * | 2015-02-28 | 2015-05-20 | 吴江市东吴机械有限责任公司 | Main steam safety valve |
| CN207247547U (en) * | 2017-08-26 | 2018-04-17 | 齐海峰 | Air heats explosion-proof heating system |
| CN208751021U (en) * | 2018-08-20 | 2019-04-16 | 盐城苏源机电科技有限公司 | A kind of emission reduction type electric gas heater |
-
2020
- 2020-09-29 CN CN202011052931.8A patent/CN112197427A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0240450A (en) * | 1988-07-29 | 1990-02-09 | Nishimura Denki Kk | Hot air generating device |
| JP2008039258A (en) * | 2006-08-03 | 2008-02-21 | Sooramu Kk | Clean heater |
| CN103244721A (en) * | 2013-05-09 | 2013-08-14 | 三一汽车制造有限公司 | Powder tank safety valve, powder tank and stirring station |
| CN104633197A (en) * | 2015-02-28 | 2015-05-20 | 吴江市东吴机械有限责任公司 | Main steam safety valve |
| CN207247547U (en) * | 2017-08-26 | 2018-04-17 | 齐海峰 | Air heats explosion-proof heating system |
| CN208751021U (en) * | 2018-08-20 | 2019-04-16 | 盐城苏源机电科技有限公司 | A kind of emission reduction type electric gas heater |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210108 |
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| WW01 | Invention patent application withdrawn after publication |