CN106768009A - A kind of scale aerobic compost temperature oxygen monitoring system - Google Patents
A kind of scale aerobic compost temperature oxygen monitoring system Download PDFInfo
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- CN106768009A CN106768009A CN201510832156.0A CN201510832156A CN106768009A CN 106768009 A CN106768009 A CN 106768009A CN 201510832156 A CN201510832156 A CN 201510832156A CN 106768009 A CN106768009 A CN 106768009A
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- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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Abstract
To obtain scale aerobic composting process critical data in real time; realize Automated condtrol, optimization composting process, lifting product quality; herein on existing Research foundation; a kind of scale aerobic compost temperature oxygen monitoring system is invented, the system mainly includes that temperature data acquisition module, oxysome fraction data acquisition module, signal processing module, data show/storing module.And system has carried out laboratory and actual scale aerobic compost performance test and analysis and research.Wherein, temperature monitoring relative standard deviation is respectively less than 3.02%, and the response time is respectively less than 45s；Oxysome fraction monitoring relative standard deviation is respectively less than 2.96%, and the response time is respectively less than 30s.Result of study shows：The system is respectively provided with superperformance at aspects such as accuracy, stability and the speeds of response, can meet scale aerobic composting process temperature and oxysome fraction spatial data real-time monitoring and scientific research demand.
Description
Technical field
The present invention relates to a kind of monitoring system, more particularly to a kind of scale aerobic compost temperature oxygen monitoring system.
Background technology
In recent years, as China's economy, the fast development of society, all kinds of organic solid castoff yield are huge, if not being subject to scientific and reasonable utilization, the wasting of resources is not only resulted in, serious threat is will also result in ecological environment and human health.By taking China's scale livestock farming as an example, the organic solid castoff Cycling And Utilizing Patterns with biogas engineering and organic fertilizer engineering as core are advocated（《Livestock and poultry breeding scale pollution prevention ordinance》）.Aerobic composting (Aerobiccomposting) is one of innoxious organic solid castoff, minimizing, recycling treatment and important channel for utilizing.In aerobic composting process, space heap temperature, oxysome fraction are two critical process control parameters for influenceing Composting process and composting production quality.Suitable temperature and oxysome fraction can effectively facilitate heap body and be brought rapidly up and kept for the good megathermal period, accelerate organic matter degradation, a large amount of to reduce greenhouse gases and foul gas product row, and lift composting production quality.In addition; compost fermentation environment is more severe; it is unfavorable for that personnel enter operation for a long time; therefore;, for realizing aerobic composting process Automated condtrol, the scientific research such as lifting compost quality and development numerical simulation is respectively provided with significance for research and development on-line monitoring scale aerobic composting process temperature, the outfit technology of oxysome fraction data.
At present, for organic solid waste aerobic compost process temperature and the existing correlative study report of oxysome fraction data acquisition aspect.Scale aerobic compost actual condition is being based oneself upon in existing correlative study, and towards material characteristic, lifting is obtained data integrity energy and remained in weak point using aspects such as portability, but there is provided preferable early-stage Study basis.
The content of the invention
The present invention be directed to scale aerobic compost demand, a kind of portable monitoring system accurately obtained suitable for batch production aerobic composting process temperature, oxysome fraction data real-time online is researched and developed.
The technical solution adopted for the present invention to solve the technical problems is：
Scale aerobic compost temperature oxygen monitoring system by temperature data acquisition module, oxysome fraction data acquisition module, signal processing module and data it is aobvious/part such as storing module constitutes.
Described temperature data acquisition module includes temperature sensor, data line and overcoat, and wherein temperature sensor is its core.
Described oxysome fraction data acquisition module includes oxysome fraction sensor and overcoat, data line, stainless steel protection set, air inlet and anti-block apparatus, handle etc..Oxysome fraction real-time monitoring sensor selects zirconia-type oxysome fraction sensor（Honeywell GMS10-RVS types, the U.S.）, its Specifeca tion speeification is as follows：Preheating time 30s, accuracy class is less than 500Pa, oxygen pressure measurement range is 200Pa ~ 300kPa, sensitivity is 0.0105ms/Pa, allow that air temperature ranges are -100 ~+250 DEG C, it has certainty of measurement and good high-temperature stability higher, can be good at meeting on-line monitoring accuracy high, good stability, the requirement of fast response time.
Described signal processing module includes signal picker and signal transmssion line.The signal picker Specifeca tion speeification of this paper is：Temperature data signal processing accuracy（FS）± 1%, 0.1 DEG C of resolution ratio；Oxysome fraction data-signal processing accuracy（FS）± 2%, resolution ratio 0.1%.
Described data are aobvious/and storing module includes multichannel temperature and oxysome fraction data-signal input interface, storage terminal and software through pictures.Multi channel signals input interface includes 8 temperature data input interfaces and 1 oxysome fraction Data Input Interface.
The beneficial effects of the invention are as follows：
This research and design a set of scale aerobic composting process temperature, oxygen real-time monitoring system, mainly include temperature data acquisition module, oxysome fraction data acquisition module, signal processing module, data it is aobvious/storing module composition, integrated level is high, good portability.3.02% is respectively less than by carrying out laboratory and actual scale aerobic compost performance test and analysis and research, result of study displays temperature monitoring relative standard deviation for the system, the response time is respectively less than 45s；Oxysome fraction monitoring relative standard deviation is respectively less than 2.96%, and the response time is respectively less than 30s.Show that the system is respectively provided with superperformance at aspects such as accuracy, stability and the speeds of response, can be used for China's batch production aerobic composting process temperature and oxysome fraction different spaces gradient multidimensional data real time on-line monitoring, to realize that composting process Automated condtrol, optimization composting process, lifting product quality provide equipment technology support.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is scale aerobic compost temperature oxygen Monitoring System scheme.
Fig. 2 is oxysome fraction data acquisition module schematic diagram.
Wherein, 1- handles, 2- stainless steel protection sets, 3- oxysome fraction sensors and overcoat, 4- air inlets and anti-block apparatus.
Specific embodiment
As shown in figure 1, scale aerobic compost temperature oxygen monitoring system by temperature data acquisition module, oxysome fraction data acquisition module, signal processing module and data it is aobvious/part such as storing module constitutes.Temperature data acquisition module includes temperature sensor, data line and overcoat, and wherein temperature sensor is its core.Aerobic composting process temperature range can be divided into temperature raising period, 3 Main Stages of megathermal period and cooldown period, and duration megathermal period is more long, and maximum temperature is up to 70 DEG C or so.PT100 temperature sensors have the advantages that precision is higher, suitable environment is extensive, cheap, is widely used in temperature monitoring.Therefore, herein using PT100 temperature sensors（Heraeus32208551 types, Germany）, its Specifeca tion speeification is as follows：Accuracy standard is Class1/3B, and temperature-coefficient of electrical resistance is 3.85 × 10-3/K, and temperature highest measurement value is 150 DEG C, response time 3s.In addition, scale aerobic compost composting environment is weak acid or mild alkaline conditions, stainless steel encapsulation safeguard structure is designed with corrosivity, outside temperature sensor, housing encapsulation degree of protection is IP65；Data line selects silver-plated tetrafluoro shielding line.Data are aobvious/and storing module includes multichannel temperature and oxysome fraction data-signal input interface, storage terminal and software through pictures.Multi channel signals input interface includes 8 temperature data input interfaces and 1 oxysome fraction Data Input Interface.Based on the different demands such as Engineering Control and scientific research, monitoring system Data Data obtains frequency should be adjustable, the a set of man-machine interaction software through pictures of VB Programming with Pascal Language technological development are used herein, after installing and open software through pictures in storage terminal, adjusting parameter can obtain different time interval lower temperature, oxygen data, and realize real-time storage.Signal processing module includes signal picker and signal transmssion line.Resistance and partial pressure of oxygen signal are converted into voltage signal by signal picker by transmitter, then voltage signal is converted into by data signal by analog-digital converter, data signal enters the processing system with single-chip microcomputer as core, and is shown on a display screen in decimal numeral form.The signal picker Specifeca tion speeification for designing herein is：Temperature data signal processing accuracy（FS）± 1%, 0.1 DEG C of resolution ratio；Oxysome fraction data-signal processing accuracy（FS）± 2%, resolution ratio 0.1%.Through experimental study, continuous function relational expression after correction between 0 ~ 70 DEG C of temperature range temperature sensor temperature value output and voltage signal and 0 ~ 21%（Do not include 0）.The continuous function relational expression that oxysome is integrated between number interval oxysome fraction sensor oxysome fraction output valve and voltage signal is respectively：
T=41.665989Et-24.999588
Wherein, T-temperature value output, DEG C
The corresponding voltage signal values of Et-temperature, V
C02=10.094435E02-6.056661。
Wherein, C02- oxysome fraction output valve.
E02The corresponding voltage signal values of-oxysome fraction.
As shown in Fig. 2 oxysome fraction data acquisition module includes that oxysome fraction sensor and overcoat 3, data line, stainless steel protection cover 2, air inlet and anti-block apparatus 4, handle 1 etc..The main flow oxysome fraction real-time monitoring sensor for being applied to compost field at present has two kinds of zirconia-type and electrochemistry type.There is corrosivity in view of scale aerobic compost composting environment, and humidity of materials viscosity is larger, traditional electrochemistry type oxysome fraction sensor easily fails, and is unfavorable for the real time on-line monitoring of composting process oxysome fraction data.Zirconia-type oxysome fraction sensor is selected herein, and its Specifeca tion speeification is as follows：Preheating time 30s, accuracy class is less than 500Pa, oxygen pressure measurement range is 200Pa ~ 300kPa, sensitivity is 0.0105ms/Pa, allow that air temperature ranges are -100 ~+250 DEG C, it has certainty of measurement and good high-temperature stability higher, can be good at meeting on-line monitoring accuracy high, good stability, the requirement of fast response time.Consider scale aerobic compost heap body average height, stainless steel protection covers 2 effective lengths and is designed as 1.2m, is connected through a screw thread with handle 1.To reduce insertion heap body frictional resistance, its tip designs is 20 ° coniform.Whole protective case is hollow structure, and zirconia sensor is placed in hollow structure middle position.Air inlet is that at the coniform sophisticated top 2cm of protective case, 2 slots of 8 × 2.5cm of specification are symmetrical in protective case circumference.In view of compost material high humidity, it is high viscous be easily caused blocking and air-flow is not smooth, based on hydrodynamics and anti-blocking principle, dual stack network structure is designed with air inlet.Zirconium oxide oxysome fraction sensor is externally provided with overcoat, is stainless steel sleeve tubular construction, and is tightened on handle 1 by screw thread, and data line is flame-proof PVC material.
Claims (5)
1. a kind of scale aerobic compost temperature oxygen monitoring system, by temperature data acquisition module, oxysome fraction data acquisition module, signal processing module and data it is aobvious/part such as storing module constitutes.
2. scale aerobic compost temperature oxygen monitoring system according to claim 1, it is characterized in that described temperature data acquisition module includes temperature sensor, data line and overcoat, wherein temperature sensor is its core.
3. scale aerobic compost temperature oxygen monitoring system according to claim 1; it is characterized in that described oxysome fraction data acquisition module includes oxysome fraction sensor and overcoat, data line, stainless steel protection set, air inlet and anti-block apparatus, handle etc., oxysome fraction real-time monitoring sensor selects zirconia-type oxysome fraction sensor（Honeywell GMS10-RVS types, the U.S.）, its Specifeca tion speeification is as follows：Preheating time 30s, accuracy class is less than 500Pa, oxygen pressure measurement range is 200Pa ~ 300kPa, sensitivity is 0.0105ms/Pa, allow that air temperature ranges are -100 ~+250 DEG C, it has certainty of measurement and good high-temperature stability higher, can be good at meeting on-line monitoring accuracy high, good stability, the requirement of fast response time.
4. scale aerobic compost temperature oxygen monitoring system according to claim 1, it is characterized in that described signal processing module includes signal picker and signal transmssion line；The signal picker Specifeca tion speeification of this paper is：Temperature data signal processing accuracy（FS）± 1%, 0.1 DEG C of resolution ratio；Oxysome fraction data-signal processing accuracy（FS）± 2%, resolution ratio 0.1%.
5. scale aerobic compost temperature oxygen monitoring system according to claim 1, it is characterized in that described data it is aobvious/storing module includes multichannel temperature and oxysome fraction data-signal input interface, storage terminal and software through pictures；Multi channel signals input interface includes 8 temperature data input interfaces and 1 oxysome fraction Data Input Interface.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579128A (en) * | 2020-06-01 | 2020-08-25 | 杭州岚达科技有限公司 | Compost internal temperature field monitoring system |
| CN112830835A (en) * | 2021-01-25 | 2021-05-25 | 赵柯柯 | Temperature-detecting device for organic fertilizer compost |
-
2015
- 2015-11-25 CN CN201510832156.0A patent/CN106768009A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111579128A (en) * | 2020-06-01 | 2020-08-25 | 杭州岚达科技有限公司 | Compost internal temperature field monitoring system |
| CN111579128B (en) * | 2020-06-01 | 2021-11-23 | 杭州岚达科技有限公司 | Compost internal temperature field monitoring system |
| CN112830835A (en) * | 2021-01-25 | 2021-05-25 | 赵柯柯 | Temperature-detecting device for organic fertilizer compost |
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