CN209927234U - Auxiliary device capable of realizing high-temperature material measurement of high-frequency radar level meter - Google Patents
Auxiliary device capable of realizing high-temperature material measurement of high-frequency radar level meter Download PDFInfo
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- CN209927234U CN209927234U CN201920996024.5U CN201920996024U CN209927234U CN 209927234 U CN209927234 U CN 209927234U CN 201920996024 U CN201920996024 U CN 201920996024U CN 209927234 U CN209927234 U CN 209927234U
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Abstract
The utility model belongs to the technical field of the online level measurement of instrument and meter, an auxiliary device that can realize high frequency radar level measurement height high temperature material is disclosed, with the problem that exists among the blast furnace charge feed bin material level measurement of solution prior art, the device includes can dismantle the dirt driving cavity of being connected with the import of feed bin, the top of dirt driving cavity can be dismantled and is connected with the cooling cavity, and the top of dirt driving cavity can be dismantled the slope with the junction of the bottom of cooling cavity and be equipped with the diathermanous heat insulating board, the upper portion of cooling cavity is equipped with the cooling import, install cooling pipe in the cooling import, the thermometer still is equipped with on the upper portion of cooling cavity. The utility model discloses effectively realize the cooling function of microwave measurement high temperature medium, it is great to have overcome ordinary microwave level instrument cooling simultaneously and sweep the gaseous quantity, and the shortcoming of the extravagant energy practices thrift and sweeps the gaseous quantity of cooling.
Description
Technical Field
The utility model relates to an online level measurement technical field of instrument and meter, concretely relates to can realize auxiliary device of high-frequency radar level measurement meter high temperature material.
Background
The material level measuring medium in the electric furnace/blast furnace material bin is the furnace material which is just produced by the reduction furnace/coke oven, the temperature is 950-. The accurate measurement of the material level has great difficulty.
Common instrumentation includes gamma ray level gauges, weighing level gauges, and high frequency radar level gauges.
The gamma ray level indicator consists of gamma ray source, receiver and display and transmission unit. The radiation source (CS 137) needs to be opened and closed during the start-up and maintenance, and because the radiation dose outside the radiation source is large, the protection measures required for the installation and maintenance of the instrument are complex, continuous measurement cannot be provided, and the operation needs safety supervision.
The weighing charge level indicator needs to be provided with a plurality of weighing sensors before the storage bin is installed, the storage bin is suspended on the sensor, the sensor senses the pressure of the storage bin to measure the charge amount (the total weight minus the weight of the storage bin) of the storage bin, and the large proportion (hundreds of tons) of the total weight of the storage bin causes poor measurement precision, large difficulty in instrument maintenance and tens of thousands of yuan of investment cost.
The radar level gauge is a non-contact continuous measuring instrument, can continuously output the actual level of materials in a material bin, and is the mainstream design at present. The working principle is as follows: the radar antenna transmits high-frequency microwaves to the surface of the material and generates reflection, and the interval time between the reflected microwaves and the transmitted microwaves is detected so as to obtain the space height and further reflect the material level height. The radar level meter reflects the actual situation of the material level of the discharged dry charging material more truly, and provides reliable basis for the safe operation of the metallurgical furnace. The device is simple and convenient to install, high in reliability and high in precision, and can be used for continuously measuring the change of the material level of the storage bin (furnace burden) in a non-contact manner.
The charge level measuring medium of the charge bin of the electric furnace/blast furnace with problems is the charge produced by the reduction furnace/coke oven just now. When the microwave radar level gauge is installed, the temperature in the dry quenching furnace is up to 1050 ℃, and the high temperature can burn out the antenna and the electronic part of the transmitter, so that the microwave radar level gauge cannot be normally used, and the technical problem cannot be solved in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem existing in the blast furnace burden feed bin material level measurement in the prior art, providing an auxiliary device which can be used at high temperature and has lower cost and can realize the high-temperature material of a high-frequency radar level meter.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a can realize auxiliary device of high-frequency radar level meter high temperature material, includes and can dismantle the dirt chamber of driving of being connected with the import of feed bin, and the top of driving dirt chamber is equipped with the cooling cavity, and can dismantle the slope between the top of the dirt chamber and the bottom of cooling cavity and be equipped with the wave-transparent heat insulating board, and the upper portion of cooling cavity is equipped with the cooling inlet, installs the cooling trachea on the cooling inlet, and the thermometer still is equipped with on the upper portion of cooling cavity, and the top demountable installation of cooling cavity has high-frequency radar level meter.
Furthermore, a period purging air pipe is connected between the upper part of the dust removing chamber and the cooling chamber.
Furthermore, a wave-transparent heat insulation plate is arranged between the top of the dust-driving cavity and the bottom of the cooling cavity through a hoop flange.
Furthermore, the top of the dust driving cavity is provided with a first flange, the bottom of the cooling cavity is provided with a second flange, a wave-transparent heat-insulating plate is arranged between the second flange and the first flange, and the first flange and the second flange are fastened through bolts.
Furthermore, an asbestos heat insulation layer is arranged on the inner side of the hoop flange.
Furthermore, the asbestos heat insulation pad is arranged at the joint of the first flange and the second flange through a bolt.
Further, a cooler expansion nozzle is mounted on the cooling inlet.
Furthermore, the bottom of the dust-driving chamber is provided with a mounting flange, and the mounting flange is connected with the inlet of the storage bin through a bolt.
Furthermore, an instrument mounting flange is arranged at the top of the cooling cavity and connected with the high-frequency radar level meter through bolts.
Furthermore, an electromagnetic valve is installed on the cooling air pipe.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses a can realize auxiliary device of high-frequency radar level measurement height temperature level through being connected the drive dirt cavity with the feed bin, pass through the ripples heat insulating board at the top slope installation of drive dirt cavity, can dismantle and be connected with the cooling cavity, and the junction of the top of drive dirt cavity and the bottom of cooling cavity can be dismantled and is equipped with and pass through the ripples heat insulating board, its installation must have with slope instrument wave beam and set for the contained angle, can be better disperse the reflection echo, do not influence the measurement of changer, reach the thermal-insulated effect of best ripples that passes through. The radiant heat and the convection heat conduction of a high-temperature material heat source can be cut off; and a cooling air pipe is communicated with the upper part of the cooling cavity to cool the cooling cavity so as to ensure the normal use of the high-frequency radar level meter, and the thermometer measures the ambient temperature of the radar antenna in real time. The utility model discloses effectively realize the cooling function of microwave measurement high temperature medium, overcome ordinary microwave level instrument cooling simultaneously and sweep the gaseous quantity great, the shortcoming of the extravagant energy. The heat exchanger effectively cuts off all heat conduction paths, the cooling chamber adopts an expansion cooling principle to improve the refrigeration efficiency, and the consumption of sweeping and cooling gas is saved.
The utility model discloses a be connected with exhaust purge pipe between the upper portion of driving dirt cavity and the cooling cavity, the heat of taking away the compartment through exhaust purge pipe with the cooling cavity gas cooling sweeps back to the feed bin to driving dirt cavity down to the dust.
The utility model discloses a pass through ripples heat insulating board is installed through the clamp flange between the top of driving dirt cavity and the bottom of cooling cavity. On one hand, the clamping of the hoop flange can ensure that the dust driving cavity and the cooling cavity are not broken due to the thermal expansion of the barrel, and on the other hand, the clamping of the wave-transparent heat insulation plate can be realized. The inner side of the hoop flange is provided with an asbestos heat insulation layer which can cut off conduction heat conduction.
The utility model discloses a top of driving dirt cavity is equipped with first flange, and the bottom of cooling cavity is equipped with the second flange, and first flange passes through the bolt-up with the second flange, can fix and pass through ripples heat insulating board, and first flange passes through bolted connection department with the second flange and is equipped with the asbestos heat insulating mattress, can cut off conduction heat conduction.
The utility model discloses a be equipped with cooler expansion nozzle on the cooling import, with the cooling gas from the nozzle blowout disperse the step-down, make the temperature decline by a wide margin reach the best effect of cooling.
The utility model discloses an install the solenoid valve on the cooling tube, can be according to the temperature discontinuous control cooling air source's of thermometer measuring letting in.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the elliptical flange connection of the present invention.
Fig. 3 is a cross-sectional view of fig. 2 according to the present invention.
The reference numerals have the following meanings: 1. a dust-driving chamber; 2. a wave-transparent heat-insulating plate; 3. a thermometer; 4. cooling the air pipe; 5. a cooling inlet; 6. an instrument mounting flange; 7. an exhaust purge gas pipe; 8. installing a flange; 9. an electromagnetic valve; 10. a storage bin; 11. a second flange; 12. a first flange; 13. clamping a flange; 14. the chamber is cooled.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1-3, an auxiliary device for high temperature material measurement by a high frequency radar level meter comprises a dust-driving chamber 1 connected with an inlet of a storage bin 10, wherein a mounting flange 8 is welded at the bottom of the dust-driving chamber 1, and the mounting flange 8 is connected with the inlet flange of the storage bin 10 through a bolt. The top of the dust driving chamber 1 is provided with a cooling chamber 14, a wave-transmitting heat-insulating plate 2 is detachably and obliquely arranged between the top of the dust driving chamber 1 and the bottom of the cooling chamber 14, the wave-transmitting heat-insulating plate 2 is made of a heat-insulating wave-transmitting material, and the heat-insulating wave-transmitting special material has the advantages of low dielectric constant, light tightness, high temperature resistance and certain mechanical strength. The upper part of the cooling chamber 14 is provided with a cooling inlet 5, and a cooling gas expansion nozzle is arranged on the cooling inlet 5. The expansion nozzle of the cooler is connected with a cooling air pipe 4, and an electromagnetic valve 9 is arranged on the cooling air pipe 4. The thermometer 3 is still equipped with on the upper portion of cooling chamber 14, and the thermometer 3 is the thermal resistance thermometer, and the high frequency radar level meter is installed at the top of cooling chamber 14, and the top of cooling chamber 14 is equipped with instrument mounting flange 6, and instrument mounting flange 6 passes through bolted connection with the high frequency radar level meter. An exhaust gas scavenging pipe 7 is connected between the upper part of the dust removing chamber 1 and the upper part of the cooling chamber 14, and the exhaust gas scavenging pipe 7 is fixed with the cooling chamber 14 and the dust removing chamber 1 in a welding mode.
One installation mode of the wave-transparent heat insulation plate 2 is as follows: an inclined wave-transparent heat-insulating plate 2 is arranged between the top of the dust-removing chamber 1 and the bottom of the cooling chamber 14 through a welded hoop flange 13, and an asbestos heat-insulating layer is arranged at the contact position of the inner side of the hoop flange 13 and the wave-transparent heat-insulating plate 2.
Another installation mode of the wave-transparent heat insulation plate 2 comprises the following steps: the top welding of drive dirt cavity 1 has the first flange 12 of slope, and the welding of the bottom of cooling cavity 14 has the second flange 11 of slope, installs between second flange 11 and the first flange 12 and passes through ripples heat insulating board 2, and first flange 12 passes through the bolt-up with second flange 11, and first flange 12 is equipped with the asbestos heat insulating mattress through bolted connection department with second flange 11.
During the use, at first will drive dirt cavity 1, cooling cavity 14, wave-transparent heat insulating board 2 and instrument tube coupling back, will drive dirt cavity 1 and install on feed bin 10, at the top installation high frequency radar level meter of cooling cavity 14, lead to nitrogen gas through cooling gas expansion nozzle and cooling tube 4 and cool off cooling cavity 14 on upper portion in cooling cavity 14, blow the trachea 7 through the exhaust simultaneously and take away the heat of cooling cavity 14 to drive dirt cavity 1 down and sweep the feed bin 10 back to the dust with the gas cooling in cooling cavity 14. The thermometer 3 can measure in real time the ambient temperature in which the radar antenna is located. According to the ambient temperature, the electromagnetic valve 9 can intermittently control the introduction of the cooling air source according to the temperature measured by the thermometer 3.
A radar level meter is separated from the inside of the furnace by a wave-transmitting and heat-insulating plate 2, and the radar is arranged outside the furnace. The radar probe integrates a transmitter and a receiver. The electromagnetic wave signals emitted by the probe antenna in the form of wave beams penetrate through the wave-transparent heat-insulating plate 2, and the echo reflected by the medium to be detected is received by the antenna. The electronic component calculates the distance between the probe and the surface of the medium by analyzing and calculating the time interval from the emission to the reception of the radar pulse signal, and outputs a corresponding signal.
Claims (10)
1. An auxiliary device capable of realizing high-temperature material measurement of a high-frequency radar level meter is characterized in that: include and can dismantle dirt chamber (1) of driving of being connected with the import of feed bin (10), the top of driving dirt chamber (1) is equipped with cooling chamber (14), and can dismantle the slope between the top of driving dirt chamber (1) and the bottom of cooling chamber (14) and be equipped with wave-transparent heat insulating board (2), the upper portion of cooling chamber (14) is equipped with cooling inlet (5), install cooling pipe (4) on cooling inlet (5), thermometer (3) are still equipped with on the upper portion of cooling chamber (14), the top demountable installation of cooling chamber (14) has high frequency radar level meter.
2. The device as claimed in claim 1, wherein the high-temperature material measuring device comprises: an exhaust gas purging pipe (7) is connected between the upper part of the dust removing chamber (1) and the cooling chamber (14).
3. The device as claimed in claim 2, wherein the high-temperature material measuring device comprises: and a wave-transmitting heat-insulating plate (2) is arranged between the top of the dust-removing chamber (1) and the bottom of the cooling chamber (14) through a hoop flange (13).
4. The device as claimed in claim 2, wherein the high-temperature material measuring device comprises: the top of the dust driving chamber (1) is provided with a first flange (12), the bottom of the cooling chamber (14) is provided with a second flange (11), a wave-transmitting heat-insulating plate (2) is arranged between the second flange (11) and the first flange (12), and the first flange (12) and the second flange (11) are fastened through bolts.
5. The device as claimed in claim 3, wherein the high-temperature material measuring device comprises: and an asbestos heat insulation layer is arranged on the inner side of the hoop flange (13).
6. The device as claimed in claim 4, wherein the high-temperature material measuring device comprises: and the first flange (12) and the second flange (11) are provided with asbestos heat insulation pads at the joints through bolts.
7. An auxiliary device for high temperature material measurement with high frequency radar level gauge according to claim 5 or 6, wherein: and a cooler expansion nozzle is arranged on the cooling inlet (5).
8. The device as claimed in claim 7, wherein the high-temperature material measuring device comprises: the bottom of the dust removing chamber (1) is provided with a mounting flange (8), and the mounting flange (8) is connected with an inlet of the storage bin (10) through a bolt.
9. The device as claimed in claim 7, wherein the high-temperature material measuring device comprises: and an instrument mounting flange (6) is arranged at the top of the cooling cavity (14), and the instrument mounting flange (6) is connected with the high-frequency radar level meter through a bolt.
10. The device as claimed in claim 1, wherein the high-temperature material measuring device comprises: and the cooling air pipe (4) is provided with an electromagnetic valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996024.5U CN209927234U (en) | 2019-06-28 | 2019-06-28 | Auxiliary device capable of realizing high-temperature material measurement of high-frequency radar level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920996024.5U CN209927234U (en) | 2019-06-28 | 2019-06-28 | Auxiliary device capable of realizing high-temperature material measurement of high-frequency radar level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209927234U true CN209927234U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920996024.5U Active CN209927234U (en) | 2019-06-28 | 2019-06-28 | Auxiliary device capable of realizing high-temperature material measurement of high-frequency radar level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209927234U (en) |
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2019
- 2019-06-28 CN CN201920996024.5U patent/CN209927234U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200716 Address after: No.68, Xinhua East Road, economic and Technological Development Zone, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan nickel cobalt research and Design Institute Co., Ltd Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |