CN109732782A - A kind of concrete moisture content online monitoring system and monitoring method - Google Patents
A kind of concrete moisture content online monitoring system and monitoring method Download PDFInfo
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- CN109732782A CN109732782A CN201910166355.0A CN201910166355A CN109732782A CN 109732782 A CN109732782 A CN 109732782A CN 201910166355 A CN201910166355 A CN 201910166355A CN 109732782 A CN109732782 A CN 109732782A
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- moisture content
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Abstract
The invention discloses a kind of concrete moisture content online monitoring system and monitoring methods, including temperature sensor, humidity sensor, density sensor, programmable controller, add water control subsystem, add water branch and turbine flowmeter, temperature sensor, humidity sensor and density sensor are respectively arranged on the discharge port of blender, and it is connect with programmable controller signal, programmable controller also respectively with add water control subsystem, add water branch, turbine flowmeter is connected with host computer signal, programmable controller obtains the true moisture content of aggregate by calculation process, and revised moisture content is compared with the moisture content standard value being previously set, if being lower than standard value, then control the water filling of water pump Xiang Jiashui branch, it is filled the water by the way that turbine flowmeter is quantitative into blender, moisture content is set to reach established standards value, and by corresponding signal Host computer is transmitted to data.The present invention improves the quality of production and efficiency and easy to operate of concrete, reduces the workload of worker.
Description
Technical field
The invention belongs to technical field of building construction, in particular to a kind of concrete moisture content online monitoring system and monitoring
Method.
Background technique
Concrete structure occupies very big specific gravity in construction projects, rises in terms of the safety reliability of structure and durability
Absolute effect.Slump is an important quality index of concrete production, influences the determination of the slump of commerical ready-mixed concrete
Have much with uncertain factor, wherein the moisture content of institute's amount of water aggregate is one of most important influence factor when stirring.
In the production process of commerical ready-mixed concrete, the moisture content of aggregate is directly related with weather conditions, mostly uses at present
Artificial detection is caused time lag for example, by using " offline " sampling Detection technology using this detection mode, cumbersome, most
The quality of production and efficiency of concrete are affected eventually.
In modern industry, using the programmable controller of large scale integrated circuit technology, such as PLC PLC technology
Device has become the main flow control device of industrial control field.
Summary of the invention
For the technical problems in the prior art, the present invention provides a kind of concrete moisture content online monitoring system,
The quality of production and efficiency of concrete can be improved.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
A kind of concrete moisture content online monitoring system, for real-time monitoring and control blender in sandstone aggregate it is aqueous
Rate, including temperature sensor, humidity sensor, density sensor, programmable controller plus water control subsystem plus water branch
And turbine flowmeter, the temperature sensor, humidity sensor and density sensor are respectively arranged on the discharge port of blender, and
Connect with programmable controller signal, the programmable controller also respectively with add water control subsystem, plus water branch, turbine flow
Meter is connected with host computer signal, adds water branch and turbine flowmeter quantitative successively to pass through by control plus water control subsystem
It is filled the water into blender, so that moisture content is reached established standards value, and corresponding signal and data are transmitted to host computer.
Preferably, described plus water control subsystem includes that switch closes relay and water pump, the water pump is supplied by water source
Water, the switch relay are connect with programmable controller and water pump respectively.
Preferably, described plus water branch includes straight stroke electric valve, the straight stroke electric valve and programmable controller
Connection, the water pump passes sequentially through straight stroke electric valve and turbine flowmeter is connect with blender, to fill the water into blender.
Preferably, described plus water branch further includes hand control valve, the water pump passes sequentially through hand control valve and whirlpool
Flowmeters are connect with blender, to fill the water into blender.
Preferably, programmable controller is PLC programmable controller.
A kind of monitoring method of concrete moisture content online monitoring system, includes the following steps:
(a) firstly, initial feed is sent into blender mixing, then pass through temperature sensor, humidity sensor respectively
Temperature, humidity and the density that mixing aggregate is measured with density sensor, then output signal to programmable controller, programmable control
Device processed obtains the true moisture content of aggregate by calculation process, then shows on the Human-machine Control interface of host computer；
(b) then revised moisture content is compared by programmable controller with the moisture content standard value being previously set,
If being lower than standard value, to switch relay output signal, to control the switch Xiang Jiashui branch water filling of water pump；
(c) regulate and control straight stroke electric valve, by the control operation of programmable controller to pass through control straight stroke electric
The switch size of valve carrys out regulating pondage size.
(d) water flow is filled the water by turbine flowmeter to blender, the flow of water is measured by turbine flow, then
Programmable controller is outputed signal to, obtains accumulative water injection rate by calculation process, is shown on the Human-machine Control interface of host computer
It shows and；
(e) when the moisture content in aggregate reaches established standards, stop water filling.
Preferably, the alternative steps of the step (c) are, adjusted by manually adjusting the switch size of hand control valve
Water-saving amount size.
Preferably, the calculation process in the step (a) measures compensation using temperature-compensation circuit, being used for can
The real-time moisture measurement number of the collected real-time compensation temperature measuring data of programmable controller, density data and preliminary linear transformation
Data fusion is carried out according to according to Nonlinear Quasi hop algorithm, to offset the influence of temperature of charge and density to measured value.
It compared with prior art, can the present invention has the beneficial effects that the present invention uses PLC programmable controller
To receive the signal of temperature sensor, humidity sensor and density sensor input at any time, and pass through the reality that operation obtains aggregate
When moisture content information fill the water, will eventually get aqueous to aggregate is mixed then by the control to water control subsystem is added
The satisfactory concrete of rate improves the quality of production and efficiency and easy to operate of concrete, reduces the workload of worker.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of concrete moisture content online monitoring system in the present invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, in the following with reference to the drawings and specific embodiments
It elaborates to the present invention.
As shown in Figure 1, embodiment of the invention discloses a kind of concrete moisture content online monitoring system, for supervising in real time
Survey and control blender 1 in sandstone aggregate moisture content, including temperature sensor 2, humidity sensor 3, density sensor 4, can
Programmable controller 5 plus water control subsystem, plus water branch and turbine flowmeter 11, temperature sensor 2, humidity sensor 3 and close
Degree sensor 4 is respectively arranged on the discharge port of blender 1, and connect with 5 signal of programmable controller, and programmable controller 5 is also
It is connect respectively with water control subsystem plus water branch, turbine flowmeter 11 and 6 signal of host computer is added, to pass through control plus water control
Subsystem successively by adding water branch and turbine flowmeter 11 quantitatively to fill the water into blender 1, makes moisture content reach setting mark
Quasi- value, and corresponding signal and data are transmitted to host computer 6.
In the present embodiment, adding water control subsystem includes that switch closes relay 7 and water pump 8, and water pump 8 is supplied water by water source,
Switch relay 7 is connect with programmable controller 5 and water pump 8 respectively.
In the present embodiment, water branch is added to include straight stroke electric valve 9 or hand control valve 10, hand control valve 10 respectively with
Water pump 8 and turbine flowmeter 11 connect, and straight stroke electric valve 9 is connect with programmable controller 5, and water pump 8 passes sequentially through Direct Travel
Motor-driven valve 9 and turbine flowmeter 11 are connect with blender 1, to fill the water into blender 1.
In the present embodiment, programmable controller is PLC programmable controller.
The invention also discloses a kind of monitoring methods of concrete moisture content online monitoring system, include the following steps:
(a) firstly, initial feed is sent into the mixing of blender 1, then pass through temperature sensor 2, humidity sensor respectively
Device 3 and density sensor 4 measure temperature, humidity and the density of mixing aggregate, then output signal to programmable controller 5, can
Programmable controller 5 obtains the true moisture content of aggregate by calculation process, then shows on the Human-machine Control interface of host computer 6
Out；
(b) then revised moisture content is compared by programmable controller 5 with the moisture content standard value being previously set,
If being lower than standard value, to 7 output signal of switch relay, to control the switch Xiang Jiashui branch water filling of water pump 8；
(c) regulate and control straight stroke electric valve 9, by the control operation of programmable controller 5 to pass through control Direct Travel electricity
The switch size of dynamic valve 9 carrys out regulating pondage size.
(d) water flow is filled the water by turbine flowmeter to blender, the flow of water is measured by turbine flow, then
Programmable controller is outputed signal to, obtains accumulative water injection rate by calculation process, is shown on the Human-machine Control interface of host computer
It shows and；
(e) when the moisture content in aggregate reaches established standards, stop water filling.
In the present embodiment, the alternative steps of step (c) are adjusted by manually adjusting the switch size of hand control valve 10
Water-saving amount size.
In the present embodiment, the calculation process in step (a) measures compensation using temperature-compensation circuit, for that can compile
The real-time moisture measurement number of the collected real-time compensation temperature measuring data of range controller 5, density data and preliminary linear transformation
Data fusion is carried out according to according to Nonlinear Quasi hop algorithm, to offset the influence of temperature of charge and density to measured value.
The monitoring method of one of present invention concrete moisture content online monitoring system and traditional " offline " sampling are examined
Survey technology is compared, and has the advantages that easy to operate, timeliness, controllability, and concrete is monitored online using PLC programmable controller
The principle of moisture content technology is to carry out processing to the signal that sensor inputs by PLC and host computer to realize real-time monitoring.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (8)
1. a kind of concrete moisture content online monitoring system, in real-time monitoring and control blender sandstone aggregate it is aqueous
Rate, which is characterized in that including temperature sensor, humidity sensor, density sensor, programmable controller plus water management subsystem
System plus water branch and turbine flowmeter, the temperature sensor, humidity sensor and density sensor are respectively arranged on blender
Discharge port, and being connect with programmable controller signal, the programmable controller also respectively with add water control subsystem, Jia Shui
Branch, turbine flowmeter are connected with host computer signal, add water branch and whirlpool successively to pass through by control plus water control subsystem
Flowmeters are quantitative to fill the water into blender, so that moisture content is reached established standards value, and corresponding signal and data are transmitted to
Host computer.
2. a kind of concrete moisture content online monitoring system according to claim 1, which is characterized in that described plus water management
Subsystem includes that switch closes relay and water pump, and the water pump is supplied water by water source, the switch relay respectively with may be programmed
Controller is connected with water pump.
3. a kind of concrete moisture content online monitoring system according to claim 2, which is characterized in that described plus water branch
Including straight stroke electric valve, the straight stroke electric valve is connect with programmable controller, and the water pump passes sequentially through Direct Travel electricity
Dynamic valve and turbine flowmeter are connect with blender, to fill the water into blender.
4. a kind of concrete moisture content online monitoring system according to claim 2, which is characterized in that described plus water branch
It further include hand control valve, the water pump passes sequentially through hand control valve and turbine flowmeter is connect with blender, with to stirring
Water filling in machine.
5. a kind of concrete moisture content online monitoring system according to any one of claims 1 to 4, which is characterized in that institute
Stating programmable controller is PLC programmable controller.
6. a kind of monitoring method of such as concrete moisture content online monitoring system described in any one of claim 1 to 5, feature
It is, includes the following steps:
(a) firstly, initial feed is sent into blender is mixed, then pass through temperature sensor, humidity sensor and close respectively
Degree sensor measures temperature, humidity and the density of mixing aggregate, then outputs signal to programmable controller, programmable controller
The true moisture content of aggregate is obtained by calculation process, is then shown on the Human-machine Control interface of host computer；
(b) then revised moisture content is compared by programmable controller with the moisture content standard value being previously set, if low
In standard value, then to switch relay output signal, to control the switch Xiang Jiashui branch water filling of water pump；
(c) regulate and control straight stroke electric valve, by the control operation of programmable controller to pass through control straight stroke electric valve
Switch size carrys out regulating pondage size.
(d) water flow is filled the water by turbine flowmeter to blender, and the flow of water is measured by turbine flow, is then exported
Signal obtains accumulative water injection rate to programmable controller, by calculation process, shows on the Human-machine Control interface of host computer
Come；
(e) when the moisture content in aggregate reaches established standards, stop water filling.
7. a kind of monitoring method of concrete moisture content online monitoring system according to claim 6, which is characterized in that institute
The alternative steps for stating step (c) are, by manually adjusting the switch size of hand control valve come regulating pondage size.
8. a kind of monitoring method of concrete moisture content online monitoring system according to claim 6, which is characterized in that institute
The calculation process stated in step (a) measures compensation using temperature-compensation circuit, for programmable controller is collected
The real-time moisture measurement data of real-time compensation temperature measuring data, density data and preliminary linear transformation is worthwhile according to Nonlinear Quasi
Method carries out data fusion, to offset the influence of temperature of charge and density to measured value.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252194A (en) * | 2019-07-02 | 2019-09-20 | 清远南玻节能新材料有限公司 | Liquid injection system and mixing arrangement |
| CN110293630A (en) * | 2019-05-21 | 2019-10-01 | 海南圣岛科技有限公司 | A kind of manufacture system and its manufacturing method of concrete |
| CN113942121A (en) * | 2021-09-03 | 2022-01-18 | 湖南中联重科混凝土机械站类设备有限公司 | Control method, processor and device for aggregate moisture content of mixing station |
| CN114972722A (en) * | 2022-07-27 | 2022-08-30 | 中科启业(聊城)建筑科技有限公司 | Novel remote control system for concrete production |
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| CN107064179A (en) * | 2017-06-23 | 2017-08-18 | 福建南方路面机械有限公司 | A kind of sand material moisture content online automatic detection instrument |
| CN109187588A (en) * | 2018-09-12 | 2019-01-11 | 中联重科股份有限公司 | Water content of sandstone measurement method and device, concrete generate system and mixing plant |
| CN109203246A (en) * | 2018-09-25 | 2019-01-15 | 长江水利委员会长江科学院 | A kind of concrete production process self compensating system automatically determined based on fine aggregate water content and method |
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| GB2356628A (en) * | 1999-11-29 | 2001-05-30 | Innovation Holdings | Foamed concrete production; concrete mixing equipment and vehicles |
| EP1308725A1 (en) * | 2001-10-31 | 2003-05-07 | Addtek Research & Development Oy Ab | Method for moisture measurement in concrete with the help of electromagnetic fields |
| CN106994746A (en) * | 2017-06-07 | 2017-08-01 | 青岛普能电气有限公司 | A kind of concrete humidity control system and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293630A (en) * | 2019-05-21 | 2019-10-01 | 海南圣岛科技有限公司 | A kind of manufacture system and its manufacturing method of concrete |
| CN110252194A (en) * | 2019-07-02 | 2019-09-20 | 清远南玻节能新材料有限公司 | Liquid injection system and mixing arrangement |
| CN113942121A (en) * | 2021-09-03 | 2022-01-18 | 湖南中联重科混凝土机械站类设备有限公司 | Control method, processor and device for aggregate moisture content of mixing station |
| CN114972722A (en) * | 2022-07-27 | 2022-08-30 | 中科启业(聊城)建筑科技有限公司 | Novel remote control system for concrete production |
| CN114972722B (en) * | 2022-07-27 | 2022-10-25 | 中科启业(聊城)建筑科技有限公司 | Novel remote control system for concrete production |
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Application publication date: 20190510 |