CN206990053U - Novel liquid level measurement mechanism - Google Patents
Novel liquid level measurement mechanism Download PDFInfo
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- CN206990053U CN206990053U CN201720865324.0U CN201720865324U CN206990053U CN 206990053 U CN206990053 U CN 206990053U CN 201720865324 U CN201720865324 U CN 201720865324U CN 206990053 U CN206990053 U CN 206990053U
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- liquid level
- boiler
- temperature sensor
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- measurement mechanism
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Abstract
A kind of novel liquid level measurement mechanism.The level gauging of traditional boiler used applying ultrasonic lever meter to measure, but was influenceed by water vapour, and saltus step often occurs for level gauging.A kind of novel liquid level measurement mechanism, consisting of：Boiler and liquid level emasuring device, boiler（5）Side wall upper part is provided with upper temperature sensor（1）, boiler side wall middle part is provided with middle portion temperature sensor（2）, boiler lower sidewall is provided with lower temperature sensor（3）, boiler bottom is provided with base pressure sensor（4）, above, neutralize the mean module that lower temperature sensor is connected to inside liquid level emasuring device（6）, mean module wire is connected to temperature/Density Calculation Module（7）, temperature/Density Calculation Module wire is connected to Water in Water Tank density sensing end（11）, divider two is additionally attached between mean module and temperature/Density Calculation Module（10）Input.The present utility model application is applied to novel liquid level measurement mechanism.
Description
Technical field：
It the utility model is related to a kind of novel liquid level measurement mechanism.
Background technology：
The level gauging of traditional boiler used applying ultrasonic lever meter to measure, but was influenceed by water vapour, and liquid level is surveyed
Saltus step often occurs for amount, and boiler carries out level gauging using called putting-into-type liquid level meter at present, but this metering system is still deposited
In following two problems：（1）Due to water, density is different at different temperature, and called putting-into-type liquid level meter can not carry out real-time to liquid level
Density revision, cause level gauging larger error to be present, level gauging is forbidden, on the one hand easily cause the too high water of actual liquid level
Case is metalled run out, and is on the other hand easily caused actual liquid level is too low to cause cavitation occurs during hot water pump operation, is caused heat-exchanger pump to damage；
（2）Because between 85-100 DEG C of the temperature of boiler reclaimed water, the cable between called putting-into-type liquid level meter sensor and transmitter is for a long time
Soak in the hot water, cause service life not long, it is necessary to irregularly be changed, add equipment maintenance cost.
The content of the invention：
The purpose of this utility model is to provide a kind of novel liquid level measurement mechanism.
Above-mentioned purpose is realized by following technical scheme：
A kind of novel liquid level measurement mechanism, its composition include：Boiler and liquid level emasuring device, described boiler side wall
Top is provided with upper temperature sensor, and middle portion temperature sensor, described hot water are provided with the middle part of described boiler side wall
Case lower sidewall is provided with lower temperature sensor, and described boiler bottom is provided with base pressure sensor, and described is upper
Portion's temperature sensor, described middle portion temperature sensor and described lower temperature sensor are connected to liquid level by wire respectively
On mean module inside measurement apparatus, described mean module is connected on temperature/Density Calculation Module further through wire, institute
Temperature/the Density Calculation Module stated is connected on Water in Water Tank density sensing end by wire, and described mean module and temperature/close
Line between degree computing module is additionally attached to the input of divider two.
Described novel liquid level measurement mechanism, described base pressure sensor are commonly connected to division with constant control point
The input of arithmetic unit one, the output end of described divider one have the input for being connected to described divider two
End.
Described novel liquid level measurement mechanism, described constant control point are arranged in described liquid level emasuring device, institute
The Water in Water Tank density sensing end stated is connected to the output end of base pressure sensor, described division fortune by DCS logic circuits
The output end for calculating device two is high water tank display end.
Described novel liquid level measurement mechanism, include by mean module, temperature/Density Calculation Module, constant inside it
The DCS logic circuits that control point, divider one, divider two and Water in Water Tank density sensing end form.
The beneficial effects of the utility model：
1. liquid level emasuring device of the present utility model, saves equipment maintenance cost, the accuracy of level gauging is improved,
Solve the problems, such as because the inaccurate caused hot water pump cavitation of level gauging and water tank are metalled run out.
Brief description of the drawings：
Accompanying drawing 1 is the mounting structure schematic diagram of spot sensor of the present utility model.
Accompanying drawing 2 is liquid level emasuring device structural representation of the present utility model.
In figure：1-upper temperature sensor；2-middle portion temperature sensor；3-lower temperature sensor；4-bottom
Portion's pressure sensor；5-boiler；6-mean module；7-temperature/Density Calculation Module；8-constant control point；9
- divider one；10-divider two；11-Water in Water Tank density sensing end；12-high water tank display end；13
- liquid level emasuring device.
Embodiment：
Embodiment 1：
A kind of novel liquid level measurement mechanism, its composition include：Boiler and liquid level emasuring device, the described side of boiler 5
Wall top is provided with upper temperature sensor 1, and middle portion temperature sensor 2 is provided with the middle part of described boiler side wall, described
Boiler lower sidewall is provided with lower temperature sensor 3, and described boiler bottom is provided with base pressure sensor 4, institute
The upper temperature sensor stated, described middle portion temperature sensor are connected by wire respectively with described lower temperature sensor
On mean module 6 inside liquid level emasuring device, described mean module is connected to temperature/density further through wire and calculates mould
On block 7, described temperature/Density Calculation Module is connected on Water in Water Tank density sensing end 11 by wire, described average mould
Line between block and temperature/Density Calculation Module is additionally attached to the input of divider 2 10.
Embodiment 2：
According to the novel liquid level measurement mechanism described in embodiment 1, described base pressure sensor is common with constant control point 8
With the input for being connected to divider 1, the output end of described divider one, which has, is connected to described division fortune
Calculate the input of device two.
Embodiment 3：
According to the novel liquid level measurement mechanism described in embodiment 2, described constant control point is arranged on described liquid level and surveyed
To measure in device 13, described Water in Water Tank density sensing end is connected to the output end of base pressure sensor by DCS logic circuits,
The output end of described divider two is high water tank display end 12.
Embodiment 4：
Include according to the novel liquid level measurement mechanism described in embodiment 2, inside it by mean module, temperature/densitometer
Calculate the DCS logics electricity of module, constant control point, divider one, divider two and Water in Water Tank density sensing end composition
Road.
Embodiment 5：
Novel liquid level measurement mechanism according to one of embodiment 1 to 4, its measuring method are：From upper in boiler
3 sensors, teletransmission to DCS are sequentially arranged under；Boiler bottom is installed by 1 sensor, pressure measuring value teletransmission to DCS；
The average temperature value of boiler is calculated by averaging module in DCS in real time, then calculated by temperature and density modular converter
Go out real-time boiler average density value ρ, according to formula：P=ρ gH, and then export boiler liquid level H=P/ ρ g；
P：Boiler bottom observed pressure value Pa
g：9.8 N/kg
ρ：Real-time density value（kg/m³）
Principle carry out Logical Configuration in dcs, draw boiler liquid level H.
Claims (4)
1. a kind of novel liquid level measurement mechanism, its composition includes：Boiler and liquid level emasuring device, it is characterized in that：Described heat
Water tank side wall upper part is provided with upper temperature sensor, and middle portion temperature sensor, institute are provided with the middle part of described boiler side wall
The boiler lower sidewall stated is provided with lower temperature sensor, and described boiler bottom is provided with base pressure sensor,
Described upper temperature sensor, described middle portion temperature sensor and described lower temperature sensor is connected by wire respectively
It is connected on the mean module inside liquid level emasuring device, described mean module is connected to temperature/density further through wire and calculated
In module, described temperature/Density Calculation Module is connected on Water in Water Tank density sensing end by wire, described mean module
Line between temperature/Density Calculation Module is additionally attached to the input of divider two.
2. novel liquid level measurement mechanism according to claim 1, it is characterized in that：Described base pressure sensor and constant
Control point is commonly connected to the input of divider one, the output end of described divider one have be connected to it is described
The input of divider two.
3. novel liquid level measurement mechanism according to claim 2, it is characterized in that：Described constant control point is arranged on described
Liquid level emasuring device in, described Water in Water Tank density sensing end is connected to base pressure sensor by DCS logic circuits
Output end, the output end of described divider two is high water tank display end.
4. novel liquid level measurement mechanism according to claim 2, it is characterized in that：Include inside it by mean module, temperature
What degree/Density Calculation Module, constant control point, divider one, divider two and Water in Water Tank density sensing end formed
DCS logic circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865324.0U CN206990053U (en) | 2017-07-17 | 2017-07-17 | Novel liquid level measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720865324.0U CN206990053U (en) | 2017-07-17 | 2017-07-17 | Novel liquid level measurement mechanism |
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| Publication Number | Publication Date |
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| CN206990053U true CN206990053U (en) | 2018-02-09 |
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| CN201720865324.0U Active CN206990053U (en) | 2017-07-17 | 2017-07-17 | Novel liquid level measurement mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692334A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Pressure vessel liquid level measurement system and method |
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2017
- 2017-07-17 CN CN201720865324.0U patent/CN206990053U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111692334A (en) * | 2020-06-22 | 2020-09-22 | 中国核动力研究设计院 | Pressure vessel liquid level measurement system and method |
| CN111692334B (en) * | 2020-06-22 | 2022-04-15 | 中国核动力研究设计院 | Pressure vessel liquid level measurement system and method |
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