CN204064395U - A kind of radar levelmeter equipment - Google Patents
A kind of radar levelmeter equipment Download PDFInfo
- Publication number
- CN204064395U CN204064395U CN201420470134.5U CN201420470134U CN204064395U CN 204064395 U CN204064395 U CN 204064395U CN 201420470134 U CN201420470134 U CN 201420470134U CN 204064395 U CN204064395 U CN 204064395U
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- Prior art keywords
- antenna
- equipment
- heating arrangement
- heating
- radar
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- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005494 condensation Effects 0.000 abstract description 6
- 238000009833 condensation Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a kind of radar levelmeter equipment, this equipment comprises the antenna (6) for transmitting and receiving microwave pulse signal and the radar treating apparatus (1) for calculating thing position according to described microwave pulse signal, this equipment comprises: heating arrangement (4), be positioned at described antenna (6) outside, for heating this antenna (6).The utility model by installing heating arrangement outside antenna, solves owing to affecting by tank internal-external temperature difference, and antenna temperature is lower than temperature in tank and the antenna condensation trouble that causes.
Description
Technical field
The utility model relates to fields of measurement, more specifically, relates to a kind of radar levelmeter equipment.
Background technology
Radar levelmeter adopts the measuring method of microwave pulse, and use normal in industrial frequency wavelength band, beam energy is low.Radar levelmeter can be arranged in storage tank, intermediate buffer tank or process vessel, carries out contactless continuous coverage to the thing position of liquid, slurry and particulate material.Radar levelmeter is applicable to dust, pressure change greatly, has the occasion that inert gas and steam exist.
Generally tank humidity, temperature are higher than outside tank, affect by internal-external temperature difference, and antenna temperature is lower than temperature in tank, easily condenses on antenna.When internal-external temperature difference becomes large, condensation is more serious, the inside and outside condensation comprehensively of antenna.After antenna condensation, there will be the problem of level gauging precise decreasing or misalignment.
Utility model content
For overcoming above-mentioned defect of the prior art, the utility model spy provide a kind of radar levelmeter equipment that antenna can be avoided to condense.
The radar levelmeter equipment that the utility model provides comprises: for transmitting and receiving the antenna of microwave pulse signal and the radar treating apparatus for calculating thing position according to described microwave pulse signal, this equipment comprises: heating arrangement, be positioned at outside described antenna, for heating this antenna.
Wherein, described antenna is box horn, and described heating arrangement is positioned at outside the conical top of this box horn.
Wherein, described heating arrangement is the well heater of constant heating power.
Wherein, the power lead of described heating arrangement is connected with the instrument power terminal powering to described radar levelmeter equipment by the tapping for described radar levelmeter equipment being mounted to the mounting flange of tested point.
Wherein, outside described power lead, there is heat-resistant insulation material insulation course.
Wherein, described heating arrangement comprise following at least one: steam heater, hot-water heating system, air heating apparatus, infrared radiation heating device.
Wherein, the surface of contact place of described heating arrangement and antenna is coated with heat conductive silica gel.
The utility model by installing heating arrangement outside antenna, solves owing to affecting by tank internal-external temperature difference, and antenna temperature is lower than temperature in tank and the antenna condensation trouble that causes.
Accompanying drawing explanation
Fig. 1 is the heating arrangement mounting structure schematic diagram that the utility model provides.
Description of reference numerals
1 radar treating apparatus 2 instrument power terminal
3 through wires hole 4 heating arrangements
5 bar type antenna 6 box horns
Embodiment
More obviously, hereafter can will coordinate appended diagram, be described in detail below to allow above and other object of the present utility model, feature and advantage.
Fig. 1 is the heating arrangement mounting structure schematic diagram that the utility model provides.As shown in Figure 1, the radar levelmeter equipment that the utility model provides comprises: for transmitting and receiving the antenna 6 of microwave pulse signal and the radar treating apparatus 1 for calculating thing position according to described microwave pulse signal, this equipment comprises: heating arrangement 4, be positioned at outside described antenna 6, for heating this antenna 6.
Wherein, described antenna 6 can be box horn (such as, stainless steel).Present inventor finds, for box horn, the most seriously, therefore preferably, described heating arrangement 4 is positioned at outside the conical top of box horn for its hydraucone conical top and bar type antenna condensation.By this, the heat of heating arrangement 4 can effectively prevent hydraucone conical top and bar type antenna 5 from condensing, avoid because of be arranged at other regions by heat conduction to this hydraucone conical top prevent condense existing for thermal losses.
The measuring principle of described radar treating apparatus 1 pair of thing position is as follows:
Radar treating apparatus 1 launches radar microwave pulse by box horn, and radar microwave pulse runs with the light velocity.If radar microwave pulse runs into material in operational process, radar microwave pulse can be reflected by material.Box horn receives the radar microwave pulse of reflection, and is transferred to the electronic circuit in radar treating apparatus 1.Microprocessor in radar treating apparatus 1 processes this signal according to software program, and identifiable design goes out the echo that material surface produces, and precision can reach grade.Because radar treating apparatus 1 is directly proportional to the time stroke T of pulse to the distance D on material surface, i.e. D=C × T/2 (wherein C is the light velocity) and the height E of canful is known, then can calculate effluent position L to be: L=E-D.
Described heating arrangement 4 is the well heater of constant heating power.Current employing electric heater mode realizes the lifting of box horn temperature.Coefficient of heat conductivity according to air is in the closed state 0.023W/mk, and heater power is typically chosen in: P (W)=0.023 (W/mk) * Δ T (DEG C) * S (m
2)/0.0011 (m).In formula, S is the area of dissipation of box horn, and Δ T is the temperature difference that metal antenna and environment keep, and empirical value is 3 DEG C, and namely hypothesis distance box horn surface thickness is the air themperature reduction difference of 0.0011m is 3 DEG C.Every unit is: watt, watts/meter degrees Fahrenheit, degree Celsius, square metre, meter.When air circulation is strong, moist, heater power should increase a little.
Wherein, described heating arrangement comprise following at least one: steam heater, hot-water heating system, air heating apparatus, infrared radiation heating device.
Preferably, the surface of contact place of described heating arrangement and antenna is coated with heat conductive silica gel.By this, the thermal conductivity of heating arrangement and box horn is enhanced.
In addition, the power lead of described heating arrangement 4 is connected with the instrument power terminal 2 powering to described radar levelmeter equipment by the tapping 3 for described radar levelmeter equipment being mounted to the mounting flange of tested point.
Wherein, outside described power lead, there is heat-resistant insulation material insulation course.
The utility model by installing heating arrangement outside the conical top of box horn, and heating arrangement keeps "on" position for a long time, improve the temperature of box horn, make the air themperature of box horn inside be in more than dew point, can effectively prevent box horn from condensing.
Although the utility model is by disclosed in above-described embodiment, but above-described embodiment and be not used to limit the utility model, any the utility model the technical staff in the technical field, not departing from spirit and scope of the present utility model, should do various change and amendment.Therefore the scope that protection domain of the present utility model should define with appended claims is as the criterion.
Claims (7)
1. a radar levelmeter equipment, this equipment comprises the antenna (6) for transmitting and receiving microwave pulse signal and the radar treating apparatus (1) for calculating thing position according to described microwave pulse signal, it is characterized in that, this equipment comprises:
Heating arrangement (4), is positioned at described antenna (6) outside, for heating this antenna (6).
2. equipment according to claim 1, is characterized in that, described antenna (6) is box horn, and described heating arrangement (4) is positioned at outside the conical top of this box horn.
3. equipment according to claim 1, is characterized in that, the well heater that described heating arrangement (4) is constant heating power.
4. equipment according to claim 1, it is characterized in that, the power lead of described heating arrangement (4) is connected with the instrument power terminal (2) powering to described radar levelmeter equipment by the tapping (3) for described radar levelmeter equipment being mounted to the mounting flange of tested point.
5. equipment according to claim 4, is characterized in that, has heat-resistant insulation material insulation course outside described power lead.
6. equipment according to claim 1, is characterized in that, described heating arrangement (4) comprise following at least one: steam heater, hot-water heating system, air heating apparatus, infrared radiation heating device.
7. equipment according to claim 1, is characterized in that, described heating arrangement (4) is coated with heat conductive silica gel with the surface of contact place of antenna (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470134.5U CN204064395U (en) | 2014-08-20 | 2014-08-20 | A kind of radar levelmeter equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420470134.5U CN204064395U (en) | 2014-08-20 | 2014-08-20 | A kind of radar levelmeter equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064395U true CN204064395U (en) | 2014-12-31 |
Family
ID=52205883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420470134.5U Active CN204064395U (en) | 2014-08-20 | 2014-08-20 | A kind of radar levelmeter equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064395U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645482A (en) * | 2018-04-03 | 2018-10-12 | 芜湖航飞科技股份有限公司 | Radar levelmeter |
| CN108645484A (en) * | 2018-04-03 | 2018-10-12 | 芜湖航飞科技股份有限公司 | The radar levelmeter of crystallization-preventive |
-
2014
- 2014-08-20 CN CN201420470134.5U patent/CN204064395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108645482A (en) * | 2018-04-03 | 2018-10-12 | 芜湖航飞科技股份有限公司 | Radar levelmeter |
| CN108645484A (en) * | 2018-04-03 | 2018-10-12 | 芜湖航飞科技股份有限公司 | The radar levelmeter of crystallization-preventive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: BEIJING GUOHUA ELECTRIC POWER Corp.,Ltd. Patentee after: Guoneng Yuedian Taishan Power Generation Co.,Ltd. Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA ELECTRIC POWER Corp.,Ltd. Patentee before: GUANGDONG GUOHUA YUEDIAN TAISHAN POWER GENERATION Co.,Ltd. |
|
| CP03 | Change of name, title or address |