CN106770489A - A kind of filtrate dilation measurement system - Google Patents
A kind of filtrate dilation measurement system Download PDFInfo
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- CN106770489A CN106770489A CN201611238146.5A CN201611238146A CN106770489A CN 106770489 A CN106770489 A CN 106770489A CN 201611238146 A CN201611238146 A CN 201611238146A CN 106770489 A CN106770489 A CN 106770489A
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- 238000005259 measurement Methods 0.000 title claims description 12
- 230000010339 dilation Effects 0.000 title claims 6
- 239000000706 filtrate Substances 0.000 title claims 6
- 239000000523 sample Substances 0.000 claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims abstract description 14
- 239000004576 sand Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 abstract description 29
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000003208 petroleum Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000008961 swelling Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Filtration Of Liquid (AREA)
Abstract
本发明公开了一种滤料膨胀度测定系统，所述滤料膨胀度测定系统设置有：沉砂盘；带有滤网的沉砂盘下端装有孔板，上端装有压盖；由至少一个沉砂盘通过固定螺栓串联组成探头；探头固定于中空的塑料导管的一端；导线一端从沉砂盘侧壁对称伸出，另一端贯穿塑料导管，于塑料导管的另一头伸出与欧姆表相接。本发明结构简单，便于携带组装，导管、导线的长度可以根据被测滤池(滤柱)的深度进行调整。滤料膨胀度测定装置在适当条件下也可用于，环保、石油、化工等行业，对液体、淤泥等界面进行测定。
The invention discloses a system for measuring the expansion degree of filter material. The system for measuring the expansion degree of filter material is provided with: a grit settling pan; the lower end of the grit settling plate with a filter screen is equipped with an orifice plate, and the upper end is equipped with a gland; at least A grit chamber is connected in series through fixing bolts to form a probe; the probe is fixed at one end of a hollow plastic conduit; one end of the wire protrudes symmetrically from the side wall of the grit chamber, the other end runs through the plastic conduit, and the other end of the plastic conduit protrudes to connect with the ohmmeter. connect. The invention is simple in structure, easy to carry and assemble, and the length of the conduit and the wire can be adjusted according to the depth of the filter tank (filter column) to be tested. The device for measuring the expansion degree of filter material can also be used in environmental protection, petroleum, chemical and other industries under appropriate conditions to measure the interface of liquid and silt.
Description
技术领域technical field
本发明属于环境保护技术领域，尤其涉及一种滤料膨胀度测定系统。The invention belongs to the technical field of environmental protection, and in particular relates to a system for measuring the expansion degree of filter material.
背景技术Background technique
在自来水厂及污水处理厂中的滤池(滤柱)进行水反冲洗的时，需测定其滤料砂的膨胀度。以往的方法是：采用一钢管，在它的下端不同位置上焊接一些乘砂用的小勺，通过砂勺里的含砂情况来确定滤料膨胀度。该方法工具制作复杂且无法根据所测目标进行调整，仅根据小勺中含沙量判断膨胀度，受小勺容积、滤柱内流速和操作误差等因素影响较大，且存在时滞性无法获得准确的实时数据。因此有必要研制一种较优化的、精确度高、便于操作的经济实用型滤料膨胀度测定装置和方法。When the filter tank (filter column) in the waterworks and sewage treatment plant is backwashed with water, it is necessary to measure the expansion degree of the filter sand. The previous method is: adopt a steel pipe, weld some small spoons for riding sand on different positions of its lower end, and determine the degree of expansion of the filter material by the sand content in the sand spoons. The tools of this method are complicated to make and cannot be adjusted according to the measured target. The expansion degree is only judged according to the sand content in the small spoon, which is greatly affected by factors such as the volume of the small spoon, the flow velocity in the filter column, and operating errors, and there is a time lag that cannot be adjusted. Get accurate real-time data. Therefore, it is necessary to develop an economical and practical filter material swelling degree measuring device and method that is optimized, high in accuracy, and easy to operate.
综上所述，现有的测定滤料砂的膨胀度方法存在操作不便且精确度低，购买专业设备成本过高等问题。To sum up, the existing methods for measuring the swelling degree of filter sand have problems such as inconvenient operation and low accuracy, and the cost of purchasing professional equipment is too high.
发明内容Contents of the invention
本发明的目的在于提供一种滤料膨胀度测定系统，旨在解决现有的测定滤料砂的膨胀度方法存在的操作不便且精确度低等问题。The purpose of the present invention is to provide a system for measuring the swelling degree of filter material, aiming to solve the problems of inconvenient operation and low accuracy existing in the existing method for measuring the swelling degree of filter material sand.
本发明是这样实现的，一种滤料膨胀度测定系统，所述滤料膨胀度测定系统设置有：The present invention is achieved in this way, a filter material swelling degree measuring system, the filter material swelling degree measuring system is provided with:
沉砂盘；Grit tray;
带有滤网的沉砂盘下端装有孔板，上端装有压盖；The lower end of the settling pan with filter screen is equipped with an orifice plate, and the upper end is equipped with a gland;
至少一个沉砂盘通过固定螺栓串联组成探头；探头固定于中空的塑料导管的一端；At least one grit chamber is connected in series through fixing bolts to form a probe; the probe is fixed at one end of a hollow plastic conduit;
导线一端从沉砂盘侧壁对称伸出，另一端贯穿塑料导管，于塑料导管的另一头伸出与欧姆表相接。One end of the wire protrudes symmetrically from the side wall of the grit chamber, the other end runs through the plastic conduit, and the other end of the plastic conduit protrudes to connect with the ohmmeter.
进一步，多个沉砂盘通过固定螺栓串联组成探头。Further, a plurality of grit chambers are connected in series through fixing bolts to form a probe.
进一步，所述带滤网的沉砂盘、孔板、压盖均采用PVC板材加工制作。Further, the grit settling pan with filter screen, orifice plate and gland are all made of PVC board.
进一步，所述沉砂盘和压盖直径70mm，厚度8mm；孔板直径70mm，厚度3mm，其上面均匀钻上Φ3mm小孔。Furthermore, the diameter of the grit chamber and the gland is 70 mm, and the thickness is 8 mm; the diameter of the orifice plate is 70 mm, and the thickness is 3 mm, and small holes of Φ3 mm are evenly drilled on it.
本发明提供的滤料膨胀度测定系统，能够通过在水和砂中电阻率大小的变化情况来判断泥、砂的膨胀高度，解决了过去测定滤料膨胀度存在的精确度差，操作不便的问题。本发明由沉砂盘；滤网；孔板；压盖；固定螺栓；导线(电极)；塑料导管；欧姆表组成。本发明的组成材料廉价易得，结构简单，便于携带组装，导管、导线的长度可以根据被测滤池(滤柱)进行调整；通过电极两端水和砂中电阻率大小的变化情况来判断泥、砂的膨胀高度，水和砂电阻变化明显，欧姆表具有一定的测量精度，因此可准确反应滤料膨胀度。The filter material expansion degree measurement system provided by the present invention can judge the expansion height of mud and sand through the change of resistivity in water and sand, and solve the problem of poor accuracy and inconvenient operation in the past measurement of filter material expansion degree. question. The invention is composed of a grit settling plate; a filter screen; an orifice plate; a gland; a fixing bolt; a wire (electrode); a plastic conduit; and an ohmmeter. The composition materials of the present invention are cheap and easy to obtain, simple in structure, easy to carry and assemble, the length of the catheter and the wire can be adjusted according to the filter tank (filter column) to be tested; it can be judged by the change of the resistivity in the water and sand at both ends of the electrode The expansion height of mud and sand, the resistance of water and sand change significantly, and the ohmmeter has a certain measurement accuracy, so it can accurately reflect the expansion degree of the filter material.
区别于传统测定方法反复用带有砂勺的钢管取样来判断膨胀度，本发明只需将探头置于所测流体即可获得实时数据。本发明还可配合即时控制系统，如典型均粒滤料滤池控制系统由一套或多套PLC(Programmable Logic Controller)可编程控制器来完成整个滤池的数据采集、运行和反冲洗过程控制。根据探头电极两端流体电阻差异，本发明可以将膨胀度以电信号的形式反馈于PLC，从而控制反冲洗阀门的开停。Different from the traditional measurement method, which repeatedly uses a steel pipe with a sand spoon to take samples to determine the degree of expansion, the present invention only needs to place the probe in the measured fluid to obtain real-time data. The present invention can also cooperate with the real-time control system, such as the control system of a typical uniform particle filter material filter, which is completed by one or more sets of PLC (Programmable Logic Controller) programmable controllers to complete the data collection, operation and backwashing process control of the entire filter . According to the difference in fluid resistance at both ends of the probe electrode, the invention can feed back the degree of expansion to the PLC in the form of an electrical signal, thereby controlling the opening and closing of the backwash valve.
基于流体中杂质含量不同，对应电极两端电阻不同的原理，本发明也可用于环保、石油、化工等行业，对液体、淤泥等界面进行测定，结构简单，便于携带组装。导管、导线的长度可以根据被测滤池(滤柱)的深度进行调整。滤料膨胀度测定装置在适当条件下也可用于，环保、石油、化工等行业，对液体、淤泥等界面进行测定。Based on the principle that the different impurity content in the fluid corresponds to the different resistance at both ends of the electrode, the invention can also be used in environmental protection, petroleum, chemical and other industries to measure the interface of liquid, sludge, etc. It has a simple structure and is easy to carry and assemble. The length of the conduit and wire can be adjusted according to the depth of the filter tank (filter column) to be tested. The device for measuring the degree of swelling of the filter material can also be used in environmental protection, petroleum, chemical and other industries under appropriate conditions to measure the interface of liquid and sludge.
附图说明Description of drawings
图1是本发明实施例提供的滤料膨胀度测定系统结构示意图；Fig. 1 is a schematic structural diagram of a filter material swelling degree measurement system provided by an embodiment of the present invention;
图2是本发明实施例提供的滤料膨胀度测定系统安装示意图；Fig. 2 is the schematic diagram of installation of the filter material swelling degree measurement system provided by the embodiment of the present invention;
图中：1、沉砂盘；2、滤网；3、孔板；4、压盖；5、固定螺栓；6、导线；7、塑料导管；8、欧姆表；9、滤料膨胀度测定装置；10、液面；11、滤层砂；12、滤池。In the figure: 1. Grit tray; 2. Filter screen; 3. Orifice plate; 4. Gland; 5. Fixing bolt; 6. Wire; 7. Plastic conduit; 8. Ohmmeter; device; 10, liquid level; 11, filter layer sand; 12, filter tank.
具体实施方式detailed description
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
下面结合附图对本发明的应用原理作详细的描述。The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
如图1所示，本发明实施例提供的滤料膨胀度测定系统包括：沉砂盘1、滤网2、孔板3、压盖4、固定螺栓5、导线6、塑料导管7。As shown in FIG. 1 , the system for measuring the degree of expansion of the filter material provided by the embodiment of the present invention includes: a grit chamber 1 , a filter screen 2 , an orifice plate 3 , a gland 4 , fixing bolts 5 , wires 6 , and plastic conduits 7 .
带有滤网2的沉砂盘1下端装有孔板3，上端装有压盖4，三个沉砂盘1通过固定螺栓5串联组成探头部分；探头固定于中空的塑料导管7的一端。导线6(电极)一端从沉砂盘1侧壁对称伸出，另一端贯穿塑料导管7，于塑料导管7的另一头伸出与欧姆表8相接。The lower end of grit chamber 1 with filter screen 2 is equipped with orifice plate 3 and the upper end is equipped with gland 4. Three grit chambers 1 are connected in series through fixing bolts 5 to form a probe part; the probe is fixed at one end of hollow plastic conduit 7. One end of the wire 6 (electrode) protrudes symmetrically from the side wall of the grit chamber 1, the other end runs through the plastic conduit 7, and the other end of the plastic conduit 7 protrudes to connect with the ohmmeter 8.
探头部分与反冲洗滤料的砂水界面接触时，由导线6(电极)将电信号反馈于欧姆表8。本发明可通过水和砂中电阻率的变化判断滤料膨胀度。取出沉砂盘1时，根据滤网2截留的滤料残留量也可提供判别依据。(经实验测得以砂砾为滤料的滤柱在反冲洗过程中，滤料浓度越高，电阻越小)When the probe part is in contact with the sand-water interface of the backwash filter material, the electrical signal is fed back to the ohmmeter 8 by the wire 6 (electrode). The invention can judge the expansion degree of the filter material through the change of resistivity in water and sand. When taking out the grit chamber 1, the residual amount of filter material intercepted by the filter screen 2 can also provide a basis for discrimination. (It has been tested by experiments that the filter column with gravel as the filter material is in the backwashing process, the higher the concentration of the filter material, the smaller the resistance)
带滤网2的沉砂盘1、孔板3、压盖均采用PVC板材加工制作。沉砂盘1和压盖4直径70mm，厚度8mm；孔板直径70mm，厚度3mm，其上面均匀钻上Φ3mm小孔。The grit settling tray 1 with the filter screen 2, the orifice plate 3, and the gland are all made of PVC sheet materials. The grit chamber 1 and the gland 4 are 70mm in diameter and 8mm in thickness; the orifice plate is 70mm in diameter and 3mm in thickness, and Φ3mm holes are evenly drilled on it.
本发明包括：沉砂盘、滤网、孔板、压盖、导线(电极)作为测量的主体部分(探头)，装置伸入滤料砂与水的交界面时，含滤料的反冲洗水进入装置探头部分。装置电极将电信号反馈于外界相连的欧姆表，欧姆表显示电极间流体的电阻。其中根据导线(电极)所接触的流体中含砂量的不同，对应的欧姆表的电阻读数也随之改变。因此可通过在水和砂中电阻率大小的变化情况来判断泥、砂的膨胀度。取出装置时，滤料被滤网截留，通过沉砂盘中滤料含量亦可直观反映水与滤层砂界面的滤料膨胀情况。The invention includes: grit settling disc, filter screen, orifice plate, gland, wire (electrode) as the main part (probe) of measurement, when the device extends into the interface between filter material sand and water, the backwash water containing filter material Access the Probe section of the device. The electrodes of the device feed back electrical signals to an ohmmeter connected to the outside, and the ohmmeter displays the resistance of the fluid between the electrodes. Among them, according to the difference in sand content in the fluid that the wire (electrode) contacts, the resistance reading of the corresponding ohmmeter also changes thereupon. Therefore, the expansion degree of mud and sand can be judged by the change of resistivity in water and sand. When the device is taken out, the filter material is retained by the filter screen, and the content of the filter material in the grit chamber can also directly reflect the expansion of the filter material at the interface between the water and the filter sand.
以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.
Claims (4)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114377442A (en) * | 2022-03-01 | 2022-04-22 | 中冶赛迪重庆信息技术有限公司 | On-line backwashing state detection method for sand filter |
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| CN201780280U (en) * | 2010-03-26 | 2011-03-30 | 陕西华斯特仪器有限责任公司 | Poking device for cotton bale moisture regain measurement |
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