CN109012494B - Safe air inlet method for high-temperature and high-pressure equipment - Google Patents
Safe air inlet method for high-temperature and high-pressure equipment Download PDFInfo
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- CN109012494B CN109012494B CN201811089317.1A CN201811089317A CN109012494B CN 109012494 B CN109012494 B CN 109012494B CN 201811089317 A CN201811089317 A CN 201811089317A CN 109012494 B CN109012494 B CN 109012494B
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Abstract
The application discloses high temperature high-pressure equipment safety inlet structure compares with prior art, includes: a high temperature region space; the pressure container layer is arranged on the periphery of the high-temperature area space, and a pressure space is formed between the pressure container layer and the high-temperature area space; a gas circulation system disposed at the plenum; an air intake portion disposed at the plenum; and an exhaust part disposed at the high temperature region space. The safe air inlet structure of the high-temperature and high-pressure equipment can effectively inhibit the outward convection of hot gas, ensure the safe operation of the equipment and reduce the energy consumption.
Description
Technical Field
The application relates to the technical field of high-temperature and high-pressure equipment and heat exchange, in particular to a safe air inlet structure of the high-temperature and high-pressure equipment, and further relates to a safe air inlet method of the high-temperature and high-pressure equipment.
Background
At present, in high-temperature and high-pressure equipment, the pressure equipment is very sensitive to temperature, and the strength of pressure vessel steel is weakened, the reliability is reduced and potential safety hazards are induced due to the increase of the temperature. In the prior art, three modes of convection, conduction and radiation exist in the heat exchange of a high-temperature area to a pressure container, the heat insulation material is of a porous structure, the heat conductivity coefficient is low, the heat exchange of the conduction and the radiation to the pressure container is not strong due to the shielding effect of the heat insulation material, the heat exchange caused by the convection is the most rapid and the influence is the most serious.
In addition, high-temperature and high-pressure equipment is usually heated after being vacuumized, however, if gas directly enters a high-temperature area, strong gas convection is very easily caused, which not only affects the operational reliability of the equipment, but also causes waste of energy.
Therefore, providing a safe air intake structure and method for high-temperature and high-pressure equipment, which can effectively inhibit the outward convection of hot gas, ensure the safe operation of the equipment, and reduce the energy consumption, has become a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problem, the application provides a method for safely feeding air to high-temperature and high-pressure equipment, which can effectively inhibit the outward convection of hot gas, ensure the safe operation of the equipment and reduce the energy consumption.
The technical scheme provided by the application is as follows:
a method for safely feeding air into high-temperature and high-pressure equipment is applied to a safe air feeding structure of the high-temperature and high-pressure equipment, and the safe air feeding structure of the high-temperature and high-pressure equipment comprises the following steps: a high temperature region space; the pressure container layer is arranged on the periphery of the high-temperature area space, and a pressure space is formed between the pressure container layer and the high-temperature area space; a gas circulation system disposed at the plenum; an air intake portion disposed at the plenum; an exhaust part provided at the high-temperature region space;
the gas circulation system includes: a circulation pipe; a pipe inlet communicated with the circulation pipe and disposed at an upper portion of the pressure space; a pipeline outlet which is communicated with the circulating pipeline and is arranged at the bottom of the high-temperature area space;
the method for safely feeding air into the high-temperature and high-pressure equipment comprises the following steps:
s1: normal temperature gas enters the pressure space from the lower part of the pressure container layer, and the gas pressure is increased to form high-pressure gas;
s2: the gas pressure of the pressure space is higher than that of the high-temperature heating area, an air cushion is formed to inhibit the outward convection of hot gas and protect the pressure container layer, and high-pressure gas enters the high-temperature area space through a gas circulation system under the action of air pressure;
s3: discharging the gas heated in the high-temperature area space from the top of the high-temperature area space;
wherein, in S1, the high-pressure gas enters the gas circulation system from the pipeline inlet at the top of the pressure space, and enters the high-temperature area space after circulation.
Further, in a preferred mode of the present invention, the gas circulation system has one end communicating with the top of the pressure space and the other end communicating with the bottom of the high temperature region.
Further, in a preferred aspect of the present invention, a heat insulating layer is further provided between the high temperature zone layer and the pressure vessel layer.
Further, in a preferred mode of the present invention, the heat insulating layer is formed by integrally needle-punching carbon fiber bundles.
Further, in a preferred mode of the present invention, the circulation duct is a spiral circulation duct.
Further, in a preferred mode of the present invention, the air intake portion is specifically provided at the bottom of the pressure space; the exhaust part is specifically arranged at the top of the high-temperature area.
Further, in a preferred aspect of the present invention, an intake safety valve is provided at the intake portion, and an exhaust safety valve is provided at the exhaust portion.
Further, in a preferred mode of the present invention, a pressure detection device is provided at the pressure vessel layer.
Further, in a preferred mode of the invention, an explosion venting device is further arranged at the pressure container layer.
Further, in a preferred aspect of the present invention, in S3, the gas is heated to a predetermined temperature in the high-temperature region space, and after the temperature is reached, the gas is discharged from the exhaust portion at the top of the high-temperature region space.
Further, in a preferred mode of the present invention, the high-pressure gas flows from the bottom to the top in the pressure space by the gas circulation system.
The invention provides a safe air inlet structure of high-temperature and high-pressure equipment, compared with the prior art, the safe air inlet structure comprises the following components: the high-temperature region comprises a high-temperature region space, wherein a pressure container layer is arranged on the periphery of the high-temperature region space, a pressure space is formed between the pressure container layer and the high-temperature region space, an air inlet part is arranged at the pressure space, and an air outlet part is arranged at the high-temperature region space. Thus, the normal temperature gas initially enters the pressure space, and then most of the gas enters the high temperature region space through the outlet of the gas circulation system, and the gas is heated in the high temperature region and discharged from the upper exhaust port. The pressure space is filled with the normal temperature gas, and the gas can naturally form pressure difference in the flowing process, so that the pressure of the pressure space is greater than the gas pressure of the space in the high-temperature area, and the gas cushion is formed to inhibit the outward convection of the hot gas and protect the pressure container layer. In addition, when the normal temperature gas flows through the pressure space, the pressure container layer can be cooled in the process, so that the safe air inlet structure of the high-temperature and high-pressure equipment provided by the application further has a cooling function; meanwhile, the hot air flow is restrained from being convected outwards, so that the heat loss is reduced, and the energy consumption of equipment is reduced. Compared with the prior art, the safe air inlet structure of the high-temperature and high-pressure equipment provided by the application obviously improves the safe reliability of equipment operation and simultaneously reduces the energy consumption to a great extent. The application also provides a safe air inlet method for the high-temperature and high-pressure equipment, and the safe air inlet method has the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a safe air intake structure of a high-temperature and high-pressure device according to an embodiment of the invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all 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 application.
As shown in fig. 1, an embodiment of the present application provides a safe air intake structure for high-temperature and high-pressure equipment, including: a high-temperature region space 1; the pressure container layer 2 is arranged on the periphery of the high-temperature area space 1, and a pressure space is formed between the pressure container layer 2 and the high-temperature area space 1; a gas circulation system disposed at the plenum; an air intake portion disposed at the plenum; and an exhaust unit provided in the high-temperature region space 1.
Compared with the prior art, the safe air inlet structure of the high-temperature and high-pressure equipment provided by the embodiment of the invention comprises the following components: the high-temperature gas-liquid separator comprises a high-temperature area space 1, wherein a pressure container layer 2 is arranged on the periphery of the high-temperature area space 1, a pressure space 3 is formed between the pressure container layer 2 and the high-temperature area space 1, a gas circulation system 4 is arranged at the pressure space 3, an air inlet part 5 is arranged at the pressure space 3, and an exhaust part 6 is arranged at the high-temperature area space 1. Thus, the normal temperature gas enters between the pressure container layer 2 and the heat insulating material at first, then most of the gas enters the bottom of the equipment through the outlet of the gas circulation system 4, finally enters the high temperature area space 1, completes gas heating in the high temperature area and is discharged from the upper exhaust port. The pressure space 3 is filled with normal temperature gas, and the gas can naturally form pressure difference in the flowing process, so that the cavity pressure is greater than the gas pressure in a high-temperature area, and an air cushion is formed to inhibit the outward convection of hot gas and protect the pressure container layer 2. In addition, when the normal temperature gas flows through the pressure space 3, the pressure container layer 2 can be cooled in the process, so that the safe air inlet structure of the high-temperature and high-pressure equipment provided by the embodiment of the invention also has a cooling function; meanwhile, the hot air flow is restrained from being convected outwards, so that the heat loss is reduced, and the energy consumption of equipment is reduced. Compared with the prior art, the safe air inlet structure of the high-temperature and high-pressure equipment provided by the embodiment of the invention obviously improves the safe reliability of equipment operation and greatly reduces the energy consumption. The embodiment of the invention also provides a safe air inlet method for the high-temperature and high-pressure equipment, and the safe air inlet method has the beneficial effects.
Specifically, in the embodiment of the present invention, a heat insulation layer 7 is further disposed between the high temperature region space 1 and the pressure vessel layer 2.
Specifically, in the embodiment of the invention, one end of the gas circulation system is communicated with the top of the pressure space, and the other end of the gas circulation system is communicated with the bottom of the high-temperature area.
Specifically, in the embodiment of the present invention, the thermal insulation layer 7 is formed by integrally needling and molding carbon fiber tows.
Specifically, in the present embodiment, the gas circulation system 4 includes: a circulation pipe; a pipe inlet communicated with the circulation pipe and disposed at an upper portion of the pressure space; and the pipeline outlet is communicated with the circulating pipeline and is arranged at the bottom of the high-temperature area space.
In this embodiment, the normal temperature gas initially enters the pressure space 3 from the gas inlet 5, and then most of the gas enters the circulation duct and enters the high temperature region space 1 from the duct outlet, and after the gas is heated in the high temperature region space 1, the gas is discharged from the gas outlet 6.
Specifically, in the present embodiment, the circulation duct 4 is specifically a spiral circulation duct.
Specifically, in the present embodiment, the air intake portion 5 is specifically disposed at the bottom of the pressure space 3; the exhaust unit 6 is specifically provided at the top of the high-temperature region space 1.
Specifically, in the present embodiment, an intake relief valve is provided at the intake portion 5, and an exhaust relief valve is provided at the exhaust portion 6.
Specifically, in the embodiment of the present invention, a pressure detection device is disposed at the pressure vessel layer 2.
Specifically, in the embodiment of the present invention, an explosion venting device is further disposed at the pressure vessel layer 2.
Specifically, in the present embodiment, the air intake portion 5 is specifically disposed at the bottom of the pressure space 3; the exhaust unit 6 is specifically provided at the top of the high-temperature region space 1.
The embodiment of the invention also provides a safe air inlet method for the high-temperature and high-pressure equipment, which comprises the following steps:
s1: normal temperature gas enters the pressure space 3 from the lower part of the pressure container layer 2, and the gas pressure is increased to form high-pressure gas;
s2: the gas pressure of the pressure space 3 is higher than that of the high-temperature heating area, and high-pressure gas enters the high-temperature area space 1 through the gas circulation system 4 under the action of air pressure;
s3: the gas heated in the high-temperature region space 1 is discharged from the exhaust unit 6 at the top of the high-temperature region space 1.
Specifically, in the present embodiment, in S1, the high-pressure gas enters the gas circulation system 4 from the pipe inlet at the top of the pressure space, and after circulation, enters the high-temperature region space 1.
Specifically, in the present embodiment, in S3, the gas is heated to a predetermined temperature in the high-temperature region space 1, and after reaching the temperature requirement, the gas is discharged from the top of the high-temperature region space 1.
Specifically, in the embodiment of the present invention, the high-pressure gas flows from bottom to top in the pressure space 3 under the action of the gas circulation system.
Thus, the safe air intake method for high-temperature and high-pressure equipment provided by this embodiment may be specifically as shown in fig. 1, and the structure includes, from inside to outside, a high-temperature area space 1, a heat insulation layer 7, and a pressure vessel layer 2. The normal temperature gas firstly enters between the pressure container and the heat insulation material, then most of the gas enters the bottom of the equipment through a pipeline outlet of a gas circulation system on the upper part of the pressure container layer and finally enters a high-temperature area, and the gas is heated in the high-temperature area and is exhausted from an upper exhaust port.
The normal temperature gas can fill the cavity between the pressure container and the heat insulation material at first, then the gas can naturally form pressure difference in the flowing process, so that the pressure of the cavity is greater than the gas pressure of a high-temperature area, an air cushion is formed to inhibit the outward convection of hot gas, and the pressure container is protected.
In addition, the device has a cooling function besides inhibiting the convection of hot air flow, the air inlet is arranged at the bottom of the pressure container, the outlet of the air circulation system is arranged at the top of the pressure container, and normal-temperature air needs to flow through the pressure container body to cool the pressure container body in the process.
In conclusion, the safe air inlet structure and the safe air inlet method for the high-temperature and high-pressure equipment, which are related to the embodiment, have the advantages that the structure is simple and reliable, the outward convection of hot gas can be effectively inhibited, the safe reliability of the operation of the equipment is guaranteed, the energy consumption of the equipment is greatly reduced, and the cost is saved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The method for safely feeding air into the high-temperature and high-pressure equipment is characterized by being applied to a safe air feeding structure of the high-temperature and high-pressure equipment, and the safe air feeding structure of the high-temperature and high-pressure equipment comprises the following steps:
a high temperature region space; the pressure container layer is arranged on the periphery of the high-temperature area space, and a pressure space is formed between the pressure container layer and the high-temperature area space; a gas circulation system disposed at the plenum; an air intake portion disposed at the plenum; an exhaust part provided at the high-temperature region space;
the gas circulation system includes: a circulation pipe; a pipe inlet communicated with the circulation pipe and disposed at an upper portion of the pressure space; a pipeline outlet which is communicated with the circulating pipeline and is arranged at the bottom of the high-temperature area space;
the method for safely feeding air into the high-temperature and high-pressure equipment comprises the following steps:
s1: normal temperature gas enters the pressure space from the lower part of the pressure container layer, and the gas pressure is increased to form high-pressure gas;
s2: the gas pressure of the pressure space is higher than that of the high-temperature heating area, an air cushion is formed to inhibit the outward convection of hot gas and protect the pressure container layer, and high-pressure gas enters the high-temperature area space through a gas circulation system under the action of air pressure;
s3: discharging the gas heated in the high-temperature area space from the top of the high-temperature area space;
wherein, in S1, the high-pressure gas enters the gas circulation system from the pipeline inlet at the top of the pressure space, and enters the high-temperature area space after circulation.
2. The method for safely feeding air into high-temperature high-pressure equipment as claimed in claim 1, wherein a heat insulation layer is further arranged between the high-temperature area space and the pressure vessel layer.
3. The method for safely feeding air into high-temperature high-pressure equipment is characterized in that the heat insulation layer is manufactured by integrally needling and molding carbon fiber tows.
4. A method for safe air intake of a high temperature and high pressure apparatus according to claim 1, wherein the circulation duct is a spiral circulation duct.
5. A method for safely feeding air into a high-temperature high-pressure equipment according to claim 1, wherein the air inlet part is arranged at the bottom of the pressure container layer; the exhaust part is specifically arranged at the top of the high-temperature area space.
6. A method for safely feeding gas into a high temperature and high pressure apparatus according to claim 1, wherein the gas is discharged from a gas discharge portion at the top of the high temperature region space after being heated to a predetermined temperature in the high temperature region space at S3.
7. A method for safely introducing gas into a high-temperature high-pressure equipment as claimed in claim 6, wherein the high-pressure gas flows from bottom to top in the pressure space under the action of the gas circulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811089317.1A CN109012494B (en) | 2018-09-18 | 2018-09-18 | Safe air inlet method for high-temperature and high-pressure equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811089317.1A CN109012494B (en) | 2018-09-18 | 2018-09-18 | Safe air inlet method for high-temperature and high-pressure equipment |
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| CN109012494A CN109012494A (en) | 2018-12-18 |
| CN109012494B true CN109012494B (en) | 2021-06-11 |
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| JP2013109215A (en) * | 2011-11-22 | 2013-06-06 | Ngk Insulators Ltd | Method for removing deposit in jacket and device for removing deposit in jacket |
| CN105271697A (en) * | 2015-11-03 | 2016-01-27 | 江苏亨通光电股份有限公司 | Sintering furnace |
| CN205157080U (en) * | 2015-11-27 | 2016-04-13 | 辽宁华科石油设备科技有限公司 | Temperature sensor heat pipe assay furnace |
| CN206036643U (en) * | 2016-07-22 | 2017-03-22 | 天津良华新能源科技有限公司 | Thermal -insulated heat preservation natural gas storage device |
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Address after: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee after: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. Address before: Room 606, complex building, 1318 Kaiyuan East Road, Xingsha industrial base, Changsha Economic and Technological Development Zone, Changsha, Hunan 410005 Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |
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Address after: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee after: Hunan Dingli Technology Co.,Ltd. Address before: 410199 No. 1271, liangtang East Road, Xingsha industrial base (Changlong Street), Changsha area, China (Hunan) pilot Free Trade Zone, Changsha, Hunan Province Patentee before: ADVANCED CORPORATION FOR MATERIALS & EQUIPMENTS Co.,Ltd. |