CN213145684U - Heat insulation flange with purging function - Google Patents
Heat insulation flange with purging function Download PDFInfo
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- CN213145684U CN213145684U CN202022159175.0U CN202022159175U CN213145684U CN 213145684 U CN213145684 U CN 213145684U CN 202022159175 U CN202022159175 U CN 202022159175U CN 213145684 U CN213145684 U CN 213145684U
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- purging
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Abstract
The utility model discloses a heat insulation flange with purging, which comprises a connecting flange, a connecting pipeline and a high-temperature heat insulation plate; the connecting flange comprises a pipe body, a first flange plate connected to the upper end of the pipe body and a second flange plate connected to the lower end of the pipe body, a jacket is arranged in the pipe wall of the pipe body, an air inlet port communicated with the upper portion of the jacket and an air outlet port communicated with the lower portion of the jacket are connected to the outside of the pipe body respectively, and the first flange plate is used for mounting the radar level meter; a third flange plate is arranged on the connecting pipeline, the second flange plate is connected with the third flange plate, the side part of the connecting pipeline is connected with a purging interface, and the purging interface is connected with the air outlet interface through an air pipe; the high-temperature heat insulation plate is plugged between the second flange plate and the third flange plate. The utility model discloses make full use of sweeps gas and dispels the heat to thermal-insulated flange, improves thermal-insulated effect, ensures radar level meter safe operation.
Description
Technical Field
The utility model relates to an instrument and instrument installation technical field, concretely relates to thermal-insulated flange that area was swept.
Background
The radar level meter adopts a microwave pulse measuring method, can be installed on various industrial equipment such as metal and nonmetal containers or pipelines, carries out non-contact continuous measurement on the level of liquid, slurry and granular materials in the radar level meter, and is suitable for occasions with large changes of dust, temperature and pressure and the presence of inert gases and steam.
The radar level gauge cannot exceed a given temperature of the gauge, which would otherwise cause damage to the gauge, and therefore installation of the radar level gauge in a high temperature vessel or pipe requires the use of an insulating flange for insulation.
Among the prior art, thermal-insulated flange generally is through setting up the high temperature heat insulating board between the ring flange and carry out the choke thermal-insulated, when high temperature tiny granule and steam contact high temperature heat insulating board, can take place the condensation, lead to the downside scale deposit of high temperature heat insulating board, if the scale deposit is too thick, can influence the electromagnetic wave and pass, thereby influence the measuring result, therefore in order to solve above-mentioned problem, be connected with on the connecting tube of the downside of high temperature heat insulating board and sweep the pipe, with introducing high-pressure gas through sweeping the pipe and sweeping, prevent high temperature tiny granule and steam contact high temperature heat insulating.
When sweeping, the sweeping gas can take away a part of heat of the connecting pipeline, however, the heat transfer efficiency between the connecting pipeline and the industrial equipment is very high, the heat taken away by the sweeping gas has little influence on the temperature of the connecting pipeline, the heat insulation between the heat insulation flange and the connecting pipeline is only insulated through the high-temperature heat insulation plate, a small part of heat is still transmitted to the heat insulation flange, the heat insulation flange can not radiate heat in time, and the condition that the radar level meter is damaged by overtemperature is still easy to occur.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a thermal-insulated flange that area was swept to make full use of sweeps gas and dispels the heat to thermal-insulated flange, improves thermal-insulated effect, ensures radar level meter safe operation.
The utility model provides a heat-insulating flange that area was swept, include: the connecting flange comprises a pipe body, a first flange plate connected to the upper end of the pipe body and a second flange plate connected to the lower end of the pipe body, a jacket is arranged in the pipe wall of the pipe body, an air inlet interface communicated with the upper portion of the jacket and an air outlet interface communicated with the lower portion of the jacket are respectively connected to the outside of the pipe body, the air inlet interface is used for introducing air, and the first flange plate is used for installing a radar level meter; the connecting pipeline is provided with a third flange plate, the second flange plate is connected with the third flange plate, the side part of the connecting pipeline is connected with a purging interface, and the purging interface is connected with the air outlet interface through an air pipe; and the high-temperature heat insulation plate is plugged between the second flange plate and the third flange plate.
Furthermore, an annular chamber is arranged outside the connecting pipeline, the blowing interface is connected with the annular chamber, and a plurality of blowing holes communicated with the connecting pipeline and the annular chamber are distributed on the pipe wall of the connecting pipeline at intervals along the annular direction.
Further, the blowing holes are arranged from outside to inside in a downward inclined mode.
Further, the number of the purge holes is four.
Furthermore, two ends of the air pipe are respectively fixed on the air outlet interface and the purging interface through threaded connection caps.
Further, the high temperature insulation board is obliquely arranged.
Further, the high-temperature heat insulation board is made of mica boards.
Further, the gas introduced by the gas inlet interface is nitrogen.
The beneficial effects of the utility model are embodied in:
connecting tube connects on industrial equipment, and the during operation blows in low temperature through the interface that admits air to the cover of pressing from both sides of body and sweeps gas, sweeps gas and passes through the cover and take away the heat of flange most, and the temperature rise sweeps gas and loops through the interface of giving vent to anger, trachea and sweeps the interface, blows in the connecting tube through sweeping the interface at last, reaches the purpose of sweeping high temperature tiny particle and steam in order to avoid contacting the high temperature heat insulating board. Because the connecting flange is insulated from the connecting pipeline through the high-temperature heat insulation plate, the heat conduction efficiency between the connecting flange and the connecting pipeline is very low, and meanwhile, the heat of the connecting flange is taken away through low-temperature sweeping gas to be cooled, so that the temperature of the connecting flange can be reduced to a lower level. Therefore, the purging gas is fully utilized to dissipate heat of the heat insulation flange, the heat insulation effect is improved, and the safe operation of the radar level gauge is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the drawings, 10-attachment flange; 11-a tube body; 111-jacket; 112-an air intake interface; 113-an air outlet interface; 12-a first flange; 13-a second flange; 20-connecting a pipe; 21-a third flange; 22-purge interface; 23-an annular chamber; 24-purge holes; 30-trachea; 31-a threaded connection cap; 40-high temperature insulation board; 50-radar level gauge.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1, the embodiment of the utility model provides a heat insulating flange that area purged, include: a connecting flange 10 and a connecting pipe 20.
The connecting flange 10 includes a pipe body 11, a first flange 12 connected to an upper end of the pipe body 11, and a second flange 13 connected to a lower end of the pipe body 11, a jacket 111 is disposed in a pipe wall of the pipe body 11, an air inlet 112 communicated with an upper portion of the jacket 111 and an air outlet 113 communicated with a lower portion of the jacket 111 are respectively connected to an outside of the pipe body 11, the air inlet 112 is used for introducing air, the air introduced through the air inlet 112 is preferably nitrogen, and the first flange 12 is used for installing the radar level gauge 50.
The connecting pipeline 20 is provided with a third flange 21, the second flange 13 is connected with the third flange 21, the side part of the connecting pipeline 20 is connected with a purging connector 22, and the purging connector 22 is connected with the air outlet connector 113 through an air pipe 30. In this embodiment, the two ends of the air tube 30 are respectively fixed to the air outlet port 113 and the purge port 22 through the screw caps 31, so that the air tube 30 is very convenient to connect and assemble.
The high-temperature heat-insulating board 40 can be made of mica plate, the high-temperature heat-insulating board 40 is blocked between the second flange 13 and the third flange 21, in this embodiment, the high-temperature heat-insulating board 40 is arranged obliquely to prevent the high-temperature heat-insulating board 40 from directly reflecting electromagnetic waves, and influence and interference of the high-temperature heat-insulating board 40 on measurement are reduced.
Connecting tube 20 is connected on industrial equipment, and during operation, blows in low temperature purge gas through interface 112 to the jacket 111 of body 11 through admitting air, and purge gas passes through jacket 111 and takes away flange 10 most heat, and purge gas that the temperature rose loops through interface 113, trachea 30 and purge interface 22 of giving vent to anger, blows in connecting tube 20 through purge interface 22 at last, reaches and prevents high temperature tiny particle and steam in order to contact the purpose of high temperature heat insulating board 40. Since the connection flange 10 and the connection pipe 20 are insulated from each other by the high-temperature insulation plate 40, the heat transfer efficiency between the connection flange 10 and the connection pipe 20 is very low, and the heat of the connection flange 10 is taken away by the low-temperature purge gas to reduce the temperature, so that the temperature of the connection flange 10 can be reduced to a low level. Therefore, the purging gas is fully utilized to dissipate heat of the heat insulation flange, the heat insulation effect is improved, and the safe operation of the radar level gauge 50 is ensured.
As a further optimization of the above scheme, an annular chamber 23 is arranged outside the connecting pipeline 20, the purging interface 22 is connected with the annular chamber 23, a plurality of purging holes 24 communicating the connecting pipeline 20 and the annular chamber 23 are circumferentially and uniformly distributed on the pipe wall of the connecting pipeline 20 at intervals, and the number of the purging holes 24 is specifically four, and the four purging holes are respectively arranged from outside to inside in a downward inclined manner. The blowing air cylinders are uniformly distributed into the connecting pipeline 20 through the blowing holes 24, so that the blowing is more uniform, and the blowing effect is improved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. A heat insulating flange that area purged, includes:
the connecting flange comprises a pipe body, a first flange plate connected to the upper end of the pipe body and a second flange plate connected to the lower end of the pipe body, a jacket is arranged in the pipe wall of the pipe body, an air inlet interface communicated with the upper portion of the jacket and an air outlet interface communicated with the lower portion of the jacket are respectively connected to the outside of the pipe body, the air inlet interface is used for introducing air, and the first flange plate is used for installing a radar level meter;
the connecting pipeline is provided with a third flange plate, the second flange plate is connected with the third flange plate, the side part of the connecting pipeline is connected with a purging interface, and the purging interface is connected with the air outlet interface through an air pipe;
and the high-temperature heat insulation plate is plugged between the second flange plate and the third flange plate.
2. The heat insulation flange with the purging function according to claim 1, wherein an annular chamber is arranged outside the connecting pipeline, the purging interface is connected with the annular chamber, and a plurality of purging holes communicated with the connecting pipeline and the annular chamber are uniformly distributed on the pipe wall of the connecting pipeline at intervals along the annular direction.
3. The heat insulating flange with purge according to claim 2, wherein the purge holes are provided to be inclined downward from the outside to the inside.
4. The heat insulating flange with purge of claim 2, wherein the purge hole is provided with four.
5. The heat insulating flange with purging of claim 1, wherein two ends of the air pipe are respectively fixed to the air outlet port and the purging port through threaded connection caps.
6. A heat insulating flange with purge according to any one of claims 1 to 5, wherein the high temperature heat insulating plate is disposed obliquely.
7. The heat insulating flange with purging of claim 6, wherein the high temperature heat insulating plate is made of mica plate.
8. The heat insulating flange with purging of claim 1, wherein the gas introduced by the gas inlet interface is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022159175.0U CN213145684U (en) | 2020-09-27 | 2020-09-27 | Heat insulation flange with purging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022159175.0U CN213145684U (en) | 2020-09-27 | 2020-09-27 | Heat insulation flange with purging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213145684U true CN213145684U (en) | 2021-05-07 |
Family
ID=75720462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022159175.0U Active CN213145684U (en) | 2020-09-27 | 2020-09-27 | Heat insulation flange with purging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213145684U (en) |
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2020
- 2020-09-27 CN CN202022159175.0U patent/CN213145684U/en active Active
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