CN114716005A - Control method of vertical decanter based on SBR process - Google Patents
Control method of vertical decanter based on SBR process Download PDFInfo
- Publication number
- CN114716005A CN114716005A CN202210226665.9A CN202210226665A CN114716005A CN 114716005 A CN114716005 A CN 114716005A CN 202210226665 A CN202210226665 A CN 202210226665A CN 114716005 A CN114716005 A CN 114716005A
- Authority
- CN
- China
- Prior art keywords
- decanter
- decanting
- liquid level
- pipe
- vertical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 38
- 239000007788 liquid Substances 0.000 claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 27
- 239000006228 supernatant Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010865 sewage Substances 0.000 claims abstract description 15
- 238000005070 sampling Methods 0.000 claims description 14
- 238000013459 approach Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 8
- 238000005273 aeration Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/006—Regulation methods for biological treatment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Activated Sludge Processes (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
本发明涉及污水处理领域，提供基于SBR工艺的立式滗水器控制方法，滗水器为立式浮筒，浮筒包括有滗水管、自动闭合系统、伸缩管和控制装置，浮筒的侧面垂直设置有多个滗水管，伸缩管的一端通过法兰与浮筒连接，伸缩管的另一端与污水池排水口连接，通过控制装置驱动自动闭合系统工作，使得滗水管排出反应池中的上清液，所述滗水管的底部设置有若干个孔洞，孔洞内通过自动闭合系统中的电磁阀闭合和打开，所述控制装置包括有主控模块、执行机构、频率采样器、液位传感器和流速传感器，多个液位传感器设置在每个滗水管的上下两侧，流速传感器设置在孔洞内，能够根据水池中的液面高度自适应关闭排水孔洞，避免浮渣随水流排出而影响水质指标。
The invention relates to the field of sewage treatment and provides a control method for a vertical decanter based on an SBR process. The decanter is a vertical buoy. The buoy includes a decanting pipe, an automatic closing system, a telescopic pipe and a control device. The side of the buoy is vertically arranged with a Multiple decanting pipes, one end of the telescopic pipe is connected to the buoy through the flange, and the other end of the telescopic pipe is connected to the drainage port of the sewage pool, and the automatic closing system is driven by the control device to work, so that the decanting pipe discharges the supernatant in the reaction tank, so The bottom of the decanting pipe is provided with a number of holes, and the holes are closed and opened by the solenoid valve in the automatic closing system. The control device includes a main control module, an actuator, a frequency sampler, a liquid level sensor and a flow rate sensor. Two liquid level sensors are arranged on the upper and lower sides of each decanting pipe, and the flow rate sensors are arranged in the holes, which can adaptively close the drainage holes according to the liquid level in the pool, so as to avoid the scum being discharged with the water flow and affecting the water quality index.
Description
技术领域technical field
本发明涉及乡镇和农村污水处理技术领域，具体涉及基于SBR工艺的立式滗水器控制方法。The invention relates to the technical field of township and rural sewage treatment, in particular to a vertical decanter control method based on an SBR process.
背景技术Background technique
经典SBR的基本运行模式。其操作由进水(fill)，反应(react)，沉淀(settle)，滗水(draw)和待机(idle)等5个基本过程组成。从污水流入开始到待机时间结束算做一个周期。在一个周期内一切过程都在一个设有曝气或搅拌装置的反应器内依次进行，不需要连续活性污泥法中必需设置的沉淀池、回流污泥泵等设备。连续活性污泥法是在空间上设置不同设施进行固定连续操作，与此相反，经典SBR是单一的反应器内，在时间上进行各种目的的不同操作。它的间歇运行方式与许多行业废水产生的周期比较一致，可以充分利用SBR的技术特点，因此在工业污水处理中应用非常广泛。The basic operating mode of the classic SBR. Its operation consists of five basic processes: fill, react, settle, draw and idle. From the start of sewage inflow to the end of the standby time is counted as one cycle. In one cycle, all processes are carried out in sequence in a reactor equipped with aeration or stirring devices, and there is no need for equipment such as sedimentation tanks and return sludge pumps that must be set up in the continuous activated sludge process. The continuous activated sludge method is to set up different facilities in space for fixed continuous operation. In contrast, the classic SBR is a single reactor, and different operations for various purposes are carried out in time. Its intermittent operation mode is consistent with the cycle of wastewater generated in many industries, and it can make full use of the technical characteristics of SBR, so it is widely used in industrial wastewater treatment.
SBR工作过程是：在较短的时间内把污水加入到反应器中，并在反应器充满水后开始曝气，污水里的有机物通过生物降解达到排放要求后停止曝气，沉淀一定时间将上清液排出。上述过程可概括为：短时间进水--曝气反应--沉淀--短时间排水--进入下一个工作周期，也可称为进水阶段——加入底物、反应阶段——底物降解、沉淀阶段——固液分离、排水阶段——排上清液和待机阶段——活性恢复五个阶段。The working process of SBR is: add sewage to the reactor in a short period of time, and start aeration after the reactor is filled with water. After the organic matter in the sewage meets the discharge requirements through biodegradation, the aeration is stopped, and the sedimentation will last for a certain period of time. The clear liquid is drained. The above process can be summarized as: short-time water inflow--aeration reaction--precipitation--short-time drainage--enter the next working cycle, which can also be called water inflow stage-substrate addition, reaction stage-substrate Degradation, precipitation stage - solid-liquid separation, drainage stage - supernatant discharge and standby stage - activity recovery five stages.
而其中的漂浮式滗水器可采用重力式排放或泵吸式排放，配备自动闭合系统，根据池内液位变化，始终保持液面以下排水防止表面漂浮物吸入，采用水平进水堰，保证沉淀后污泥不会吸入而随出水流出，自动闭合系统可实现搅拌或曝气阶段无悬浮物进入。因此如何准确的控制自动闭合系统工作成为了污水治理效率的重点。Among them, the floating decanter can use gravity discharge or pump suction discharge, and is equipped with an automatic closing system. According to the change of the liquid level in the tank, the drainage below the liquid level is always kept to prevent the inhalation of floating objects on the surface, and the horizontal inlet weir is used to ensure sedimentation. The sludge will not be inhaled and flow out with the effluent, and the automatic closing system can realize that no suspended matter enters during the stirring or aeration stage. Therefore, how to accurately control the work of the automatic closing system has become the focus of sewage treatment efficiency.
发明内容SUMMARY OF THE INVENTION
本发明目的在于提供基于SBR工艺的立式滗水器控制方法，实现滗水器的自动监测和控制，避免杂质堵塞孔洞，增加滗水器清洗的成本和人为监管成本。The purpose of the present invention is to provide a vertical decanter control method based on the SBR process, to realize automatic monitoring and control of the decanter, to prevent impurities from blocking holes, and to increase the cost of cleaning the decanter and the cost of human supervision.
为实现上述目的，本发明所采用的技术方案是：基于SBR工艺的立式滗水器控制方法，滗水器为立式浮筒，浮筒包括有滗水管、自动闭合系统、伸缩管和控制装置，浮筒的侧面垂直设置有多个滗水管，伸缩管的一端通过法兰与浮筒连接，伸缩管的另一端与污水池排水口连接，通过控制装置驱动自动闭合系统工作，使得滗水管排出反应池中的上清液，所述滗水管的底部设置有若干可孔洞，孔洞内通过自动闭合系统中的电磁阀闭合和打开，所述控制装置包括有主控模块、执行机构、频率采样器、液位传感器和流速传感器，多个液位传感器设置在每个滗水管的上下两侧，流速传感器设置在孔洞内，In order to achieve the above object, the technical scheme adopted in the present invention is: the control method of the vertical decanter based on the SBR process, the decanter is a vertical buoy, and the buoy includes a decanting pipe, an automatic closing system, a telescopic pipe and a control device, A plurality of decanting pipes are vertically arranged on the side of the buoy. One end of the telescopic pipe is connected to the buoy through a flange, and the other end of the telescopic pipe is connected to the drainage port of the sewage pool. The control device drives the automatic closing system to work, so that the decanting pipe is discharged into the reaction tank. The bottom of the decanting pipe is provided with a number of holes, and the holes are closed and opened by the solenoid valve in the automatic closing system, and the control device includes a main control module, an actuator, a frequency sampler, a liquid level Sensors and flow rate sensors, multiple liquid level sensors are arranged on the upper and lower sides of each decanting pipe, flow rate sensors are arranged in the holes,
频率采样器的输入端分别与液位传感器和流速传感器连接，频率采样器的输出端与主控模块连接，主控模块的输出端与执行机构连接，通过执行机构驱动电磁阀的开合，The input end of the frequency sampler is connected with the liquid level sensor and the flow rate sensor respectively, the output end of the frequency sampler is connected with the main control module, the output end of the main control module is connected with the actuator, and the opening and closing of the solenoid valve is driven by the actuator,
所述主控模块的工作原理包括下列步骤：The working principle of the main control module includes the following steps:
步骤S1：根据获取的液位信息判断滗水器的工作状态和反应池内的水量，其中液位信息根据频率采样器获取；Step S1: Judging the working state of the decanter and the amount of water in the reaction tank according to the obtained liquid level information, wherein the liquid level information is obtained according to the frequency sampler;
步骤S2：所述主控模块获取孔洞在T0时段内的流量并通过通信模块发送至远程终端；Step S2: the main control module obtains the flow of the hole in the T0 period and sends it to the remote terminal through the communication module;
步骤S3：远程终端通过比较T0时段内的流量与预存标准区间的大小关系，当流量小于标准区间时，驱动主控模块向执行机构发送关闭电磁阀的指令。Step S3: The remote terminal compares the magnitude relationship between the flow rate in the T0 period and the pre-stored standard interval, and when the flow rate is less than the standard interval, the drive main control module sends an instruction to close the solenoid valve to the actuator.
优选的，所述步骤S1中，通过液位传感器获取液位信息，当反应池内的污水超过了滗水管的上侧液位传感器时，主控模块驱动执行机构关闭该碧水管的电磁阀。Preferably, in the step S1, the liquid level information is obtained through a liquid level sensor, and when the sewage in the reaction tank exceeds the liquid level sensor on the upper side of the decanting pipe, the main control module drives the actuator to close the solenoid valve of the clear water pipe.
优选的，所述步骤S1中，频率采样器采样两次液位信息的间隔时间小于所述步骤S2中的T0。Preferably, in the step S1, the interval time between the frequency sampler sampling the liquid level information twice is less than T0 in the step S2.
优选的，T0时段内的总流量Q计算公式为：Preferably, the calculation formula of the total flow Q in the T0 period is:
Q＝QT0-Q0＝SvT0-Sv0 Q=Q T0 -Q 0 =Sv T0 -Sv 0
vQ＝Q/Sv Q = Q/S
式中，S为孔洞的截面积，单位为平方厘米，v0为初始时刻孔洞处的瞬时流速，vT0为T0时刻孔洞处的瞬时流速，vQ为T0时段内的平均流速，v0和vT0均通过频率采样器采样得到。In the formula, S is the cross-sectional area of the hole, in square centimeters, v 0 is the instantaneous flow velocity at the hole at the initial time, v T0 is the instantaneous flow velocity at the hole at T0, v Q is the average flow velocity during the T0 period, v 0 and v T0 are all sampled by the frequency sampler.
优选的，标准区间设定的标准为，当反应池内的液面高度趋近滗水管最上侧液位传感器时，计算滗水管内蓄满水为总体积V，密度为上清液的平均密度ρ，计算孔洞的速度为v11，当滗水堰内的水的体积小于(n-1)V/n时，计算孔洞的速度为v22，其中滗水器的孔洞开启的数量为n，通过v11和v22计算得到标准区间的流量最大值和流量最小值。Preferably, the standard set in the standard interval is that when the height of the liquid level in the reaction tank approaches the liquid level sensor on the uppermost side of the decanting pipe, the full volume of water in the decanting pipe is calculated as the total volume V, and the density is the average density ρ of the supernatant. , the velocity of the calculated hole is v 11 , when the volume of water in the decanter weir is less than (n-1)V/n, the velocity of the calculated hole is v 22 , and the number of holes opened in the decanter is n, through v 11 and v 22 calculate the maximum and minimum flow rates in the standard interval.
优选的，当单位时间内孔洞的流量与下一单位时间内孔洞的流量成非线性递减时，主控模块驱动执行机构关闭电磁阀。Preferably, when the flow rate of the hole in a unit time and the flow rate of the hole in the next unit time decrease non-linearly, the main control module drives the actuator to close the solenoid valve.
优选的，所述频率采样器的单位采样时间为T1，单位秒，当滗水器开始工作时，采样时间T1的计算公式为，Preferably, the unit sampling time of the frequency sampler is T1, and the unit is second. When the decanter starts to work, the calculation formula of the sampling time T1 is,
T1＝60V/(S*n*H)T1=60V/(S*n*H)
当反应池内的上清液的高度低于警戒高度时，采样时间T1的计算公式为，When the height of the supernatant in the reaction tank is lower than the warning height, the calculation formula of sampling time T1 is,
T1＝60V/(S*(n+1)*H)T1=60V/(S*(n+1)*H)
式中，H为滗水管的长度。In the formula, H is the length of the decanting pipe.
优选的，通通过在反应池的侧壁设置液位传感器来检测反应池内上清液的警戒高度，液位传感器设置的垂直高度距离地面为h，h＝滗水器高度-自上至下第一个滗水管高度。Preferably, the warning height of the supernatant in the reaction tank is detected by setting a liquid level sensor on the side wall of the reaction tank. The vertical height of the liquid level sensor is set to be h from the ground, and h=decanter height - the first from top to bottom One decanter height.
优选的，滗水管之间的距离不少于10公分。Preferably, the distance between the decanting pipes is not less than 10 cm.
优选的，滗水器和伸缩管之间设置有电磁阀。Preferably, a solenoid valve is arranged between the decanter and the telescopic tube.
综上所述，本发明的有益效果为：To sum up, the beneficial effects of the present invention are:
1、自动检测滗水器孔洞的流速来预防后期异物堵塞孔洞；1. Automatically detect the flow rate of the decanter hole to prevent foreign matter from blocking the hole later;
2、无需人为检测，根据反应池内的上清液情况自动监管；2. No need for manual detection, automatic supervision according to the condition of the supernatant in the reaction tank;
3、立式浮筒排水高度随液面上升、下降，确保最大程度、最快速度排水。3. The drainage height of the vertical buoy rises and falls with the liquid level to ensure maximum and fastest drainage.
附图说明Description of drawings
图1为本发明的基于SBR工艺的立式滗水器控制方法的示意图；Fig. 1 is the schematic diagram of the vertical decanter control method based on SBR process of the present invention;
图2为本发明实施例中滗水器的结构图。FIG. 2 is a structural diagram of a water decanter in an embodiment of the present invention.
附图标记说明：1、立式浮筒；2、液位传感器；3、孔洞；4、伸缩管；5、电磁阀。Description of reference numerals: 1. Vertical float; 2. Liquid level sensor; 3. Hole; 4. Telescopic tube; 5. Solenoid valve.
具体实施方式Detailed ways
下面结合本发明的附图1，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to FIG. 1 of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
实施例1：Example 1:
基于SBR工艺的立式滗水器控制方法，滗水器为立式浮筒，浮筒包括有滗水管、自动闭合系统、伸缩管和控制装置，浮筒的侧面垂直设置有多个滗水管，伸缩管的一端通过法兰与浮筒连接，伸缩管的另一端与污水池排水口连接，通过控制装置驱动自动闭合系统工作，使得滗水管排出反应池中的上清液，所述滗水管的底部设置有若干可孔洞，孔洞内通过自动闭合系统中的电磁阀闭合和打开，所述控制装置包括有主控模块、执行机构、频率采样器、液位传感器和流速传感器，多个液位传感器设置在每个滗水管的上下两侧，流速传感器设置在孔洞内，能够根据水池中的液面高度自适应关闭排水孔洞，避免最上面的杂质堵塞孔洞，The control method of the vertical decanter based on the SBR process. The decanter is a vertical buoy. The buoy includes a decanting pipe, an automatic closing system, a telescopic pipe and a control device. A plurality of decanting pipes are vertically arranged on the side of the buoy. One end is connected with the buoy through the flange, the other end of the telescopic pipe is connected with the drainage port of the sewage tank, and the automatic closing system is driven by the control device to work, so that the decanting pipe discharges the supernatant in the reaction tank. The bottom of the decanting pipe is provided with several The hole can be closed and opened by the solenoid valve in the automatic closing system. The control device includes a main control module, an actuator, a frequency sampler, a liquid level sensor and a flow rate sensor, and a plurality of liquid level sensors are arranged in each On the upper and lower sides of the decanting pipe, the flow rate sensors are set in the holes, which can automatically close the drainage holes according to the liquid level in the pool to avoid the top impurities from blocking the holes.
频率采样器的输入端分别与液位传感器和流速传感器连接，频率采样器的输出端与主控模块连接，主控模块的输出端与执行机构连接，通过执行机构驱动电磁阀的开合，The input end of the frequency sampler is connected with the liquid level sensor and the flow rate sensor respectively, the output end of the frequency sampler is connected with the main control module, the output end of the main control module is connected with the actuator, and the opening and closing of the solenoid valve is driven by the actuator,
所述主控模块的工作原理包括下列步骤：The working principle of the main control module includes the following steps:
步骤S1：根据获取的液位信息判断滗水器的工作状态和反应池内的水量，其中液位信息根据频率采样器获取；Step S1: Judging the working state of the decanter and the amount of water in the reaction tank according to the obtained liquid level information, wherein the liquid level information is obtained according to the frequency sampler;
步骤S2：所述主控模块获取孔洞在T0时段内的流量并通过通信模块发送至远程终端；Step S2: the main control module obtains the flow of the hole in the T0 period and sends it to the remote terminal through the communication module;
步骤S3：远程终端通过比较T0时段内的流量与标准区间的大小关系，当流量小于标准区间时，驱动主控模块向执行机构发送关闭电磁阀的指令。Step S3: The remote terminal compares the magnitude relationship between the flow rate in the T0 period and the standard interval, and when the flow rate is less than the standard interval, the main control module is driven to send an instruction to close the solenoid valve to the actuator.
所述步骤S1中，液位传感器设置在滗水管外侧的最高点，通过液位传感器获取滗水管外侧的液位信息，当反应池内的污水超过了滗水管的最高值时，主控模块驱动执行机构关闭电磁阀。In the step S1, the liquid level sensor is arranged at the highest point outside the decanting pipe, and the liquid level information on the outside of the decanting pipe is obtained through the liquid level sensor. When the sewage in the reaction tank exceeds the highest value of the decanting pipe, the main control module drives the execution. The mechanism closes the solenoid valve.
所述步骤S1中，频率采样器采样两次液位信息的间隔时间小于所述步骤S2中的T0。In the step S1, the interval time between the frequency sampler sampling the liquid level information twice is less than T0 in the step S2.
T0时段内的总流量Q计算公式为：The formula for calculating the total flow Q in the T0 period is:
Q＝Q T0-Q0＝Sv T0-Sv0 Q=Q T0 -Q 0 =Sv T0 -Sv 0
v Q＝Q/Sv Q = Q/S
式中，S为孔洞的截面积，单位为平方厘米，v0为初始时刻孔洞处的瞬时流速，v T0为T0时刻孔洞处的瞬时流速，v Q为T0时段内的平均流速，v0和v T0均通过频率采样器采样得到。In the formula, S is the cross-sectional area of the hole, in square centimeters, v 0 is the instantaneous flow velocity at the hole at the initial time, v T0 is the instantaneous flow velocity at the hole at T0, v Q is the average flow velocity during the T0 period, v 0 and v T0 are all sampled by the frequency sampler.
标准区间设定的标准为，当反应池内的液面高度趋近滗水管最高点时，计算滗水管内蓄满水为总体积V，密度为上清液的平均密度ρ，计算孔洞的速度为v11，当滗水堰内的水的体积为(n-1)V/n时，计算孔洞的速度为v22，其中滗水器的孔洞数量为n，通过v11和v22计算得到标准区间的流量最大值和流量最小值。The standard set in the standard interval is that when the liquid level in the reaction tank approaches the highest point of the decanting pipe, the total volume of water stored in the decanting pipe is calculated as the total volume V, the density is the average density ρ of the supernatant, and the velocity of the calculated hole is v 11 , when the volume of water in the decanter weir is (n-1)V/n, the velocity of the calculated holes is v 22 , and the number of holes in the decanter is n, and the standard is calculated by v 11 and v 22 The flow maximum and flow minimum of the interval.
当单位时间内孔洞的流量与下一单位时间内孔洞的流量成非线性递减时，主控模块驱动执行机构关闭电磁阀，由于滗水堰中的上清液持续下落，但下落中存在有杂质的堆积，导致洞口内的流速出现非线性递减，因此为了避免杂质堵塞孔洞，采用电磁阀关闭孔洞。When the flow rate of the hole in a unit time and the flow rate of the hole in the next unit time decrease nonlinearly, the main control module drives the actuator to close the solenoid valve, because the supernatant in the decanting weir continues to fall, but there are impurities in the falling Therefore, in order to prevent impurities from blocking the holes, a solenoid valve is used to close the holes.
所述频率采样器的单位采样时间为T1，单位秒，当滗水器开始工作时，采样时间T1的计算公式为，The unit sampling time of the frequency sampler is T1, and the unit is second. When the decanter starts to work, the calculation formula of the sampling time T1 is,
T1＝60V/(S*n*H)T1=60V/(S*n*H)
当反应池内的上清液的高度低于警戒高度时，采样时间T1的计算公式为，When the height of the supernatant in the reaction tank is lower than the warning height, the calculation formula of sampling time T1 is,
T1＝60V/(S*(n+1)*H)T1=60V/(S*(n+1)*H)
式中，H为滗水管的长度。In the formula, H is the length of the decanting pipe.
通过在反应池的侧壁设置液位传感器来检测反应池内上清液的警戒高度，液位传感器设置的垂直高度距离地面为h，h＝滗水器高度-自上至下第一个滗水管高度。The warning height of the supernatant liquid in the reaction tank is detected by setting a liquid level sensor on the side wall of the reaction tank. The vertical height of the liquid level sensor is set to be h from the ground, h = the height of the decanter - the first decanting pipe from top to bottom high.
值得说明的是，反应池内的污水治理是个长周期的动态过程，在滗水器不工作时，就通过电磁阀关闭孔洞，在滗水器工作后，实时检测孔洞流速，正常情况下，大部分杂质都会下沉至反应池底部，小部分杂质由于密度小漂浮在上清液上，而滗水器通过中间层的上清液进行滗水，而采用流速监测，原理是当反应池水量足够的情况下，滗水管内的上清液的体积是一定的，当孔洞数量是固定的情况下，孔洞的流速与滗水管内上清液体积、密度、是否堵塞均有线性关系，一旦混入了杂质，流速也会发生改变，根据污水治理池的规格和排水要求，可以设立支柱固定浮筒，避免浮筒重量过大，下沉至底部。It is worth noting that the sewage treatment in the reaction tank is a long-term dynamic process. When the decanter is not working, the hole is closed through the solenoid valve. After the decanter is working, the flow rate of the hole is detected in real time. The impurities will sink to the bottom of the reaction tank, and a small part of the impurities will float on the supernatant due to their low density, and the decanter decanters through the supernatant in the middle layer, and the flow rate monitoring is used. The principle is that when the amount of water in the reaction tank is sufficient Under the circumstance, the volume of the supernatant in the decanting pipe is fixed. When the number of holes is fixed, the flow rate of the holes has a linear relationship with the volume, density and blockage of the supernatant in the decanting pipe. Once impurities are mixed in. , the flow rate will also change. According to the specifications and drainage requirements of the sewage treatment tank, a pillar can be set up to fix the buoy to prevent the buoy from being too heavy and sinking to the bottom.
值得说明的是，本实施例不排除，对同一滗水器的多个孔洞采用多个执行机构进行一对一控制，例如，位于底部的孔洞设置更大的直径，使得单位时间内流量更大，但也避免存在杂质堵塞的情况，因此采样模块的灵敏度也更精确，确保滗水为最佳效果。It is worth noting that this embodiment does not exclude the use of multiple actuators for one-to-one control of multiple holes in the same decanter. For example, the holes at the bottom are set with a larger diameter, so that the flow rate per unit time is larger. , but also avoids impurity blockage, so the sensitivity of the sampling module is also more accurate, ensuring the best decanting effect.
在本发明的描述中，需要理解的是，术语“逆时针”、“顺时针”“纵向”、“横向”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。In the description of the present invention, it should be understood that the terms "counterclockwise", "clockwise", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of It is convenient to describe the present invention, not to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226665.9A CN114716005B (en) | 2022-03-09 | 2022-03-09 | Control method of vertical decanter based on SBR process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210226665.9A CN114716005B (en) | 2022-03-09 | 2022-03-09 | Control method of vertical decanter based on SBR process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114716005A true CN114716005A (en) | 2022-07-08 |
| CN114716005B CN114716005B (en) | 2023-03-24 |
Family
ID=82238569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210226665.9A Active CN114716005B (en) | 2022-03-09 | 2022-03-09 | Control method of vertical decanter based on SBR process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114716005B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1125529A (en) * | 1955-04-15 | 1956-10-31 | Creusot Forges Ateliers | Hydraulic device for using the difference in the levels of a liquid |
| ITGE940040V0 (en) * | 1993-12-09 | 1994-12-07 | Marcello Damiani | PERFECTED DOSER CASE. |
| CN201132797Y (en) * | 2007-12-04 | 2008-10-15 | 上海复旦水务工程技术有限公司 | Fixed water-decanting device |
| CN101575142A (en) * | 2009-04-30 | 2009-11-11 | 深圳市新环机械工程设备有限公司 | Rotary-type water decanter |
| CN102311167A (en) * | 2011-08-18 | 2012-01-11 | 浦华环保有限公司 | Decanting flow control apparatus of rotation type water decanter |
| US20150183658A1 (en) * | 2013-12-27 | 2015-07-02 | ClearCove Systems, Inc. | Method and apparatus for a vertical lift decanter system in a water treatment system |
| CN205294940U (en) * | 2015-11-12 | 2016-06-08 | 昆明佳晓自来水工程技术股份有限公司 | Hydrophone is strained to novel simple and easy submerged gravity suitable for sewage purifying treatment |
| KR20170035651A (en) * | 2015-09-23 | 2017-03-31 | 박연욱 | Flow regulation device and method for automatically regulating flow of Food Waste Leachate into decanter |
| CN106986444A (en) * | 2016-01-21 | 2017-07-28 | 扬州臻微生物技术有限公司 | A kind of novel stabilising water decanter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT233611Y1 (en) * | 1994-07-06 | 2000-02-01 | Laped Snc Di Pastorello Claudi | EXHAUST LIQUID FILTRATION DEVICE |
-
2022
- 2022-03-09 CN CN202210226665.9A patent/CN114716005B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1125529A (en) * | 1955-04-15 | 1956-10-31 | Creusot Forges Ateliers | Hydraulic device for using the difference in the levels of a liquid |
| ITGE940040V0 (en) * | 1993-12-09 | 1994-12-07 | Marcello Damiani | PERFECTED DOSER CASE. |
| CN201132797Y (en) * | 2007-12-04 | 2008-10-15 | 上海复旦水务工程技术有限公司 | Fixed water-decanting device |
| CN101575142A (en) * | 2009-04-30 | 2009-11-11 | 深圳市新环机械工程设备有限公司 | Rotary-type water decanter |
| CN102311167A (en) * | 2011-08-18 | 2012-01-11 | 浦华环保有限公司 | Decanting flow control apparatus of rotation type water decanter |
| US20150183658A1 (en) * | 2013-12-27 | 2015-07-02 | ClearCove Systems, Inc. | Method and apparatus for a vertical lift decanter system in a water treatment system |
| KR20170035651A (en) * | 2015-09-23 | 2017-03-31 | 박연욱 | Flow regulation device and method for automatically regulating flow of Food Waste Leachate into decanter |
| CN205294940U (en) * | 2015-11-12 | 2016-06-08 | 昆明佳晓自来水工程技术股份有限公司 | Hydrophone is strained to novel simple and easy submerged gravity suitable for sewage purifying treatment |
| CN106986444A (en) * | 2016-01-21 | 2017-07-28 | 扬州臻微生物技术有限公司 | A kind of novel stabilising water decanter |
Non-Patent Citations (3)
| Title |
|---|
| 王志宏: "《SBR工艺用滗水器的研究》", 《中国优秀博硕士学位论文全文数据库(硕士） 工程科技I辑》 * |
| 胡国光: "《无动力滗水器在横岗污水处理厂中的应用》", 《给水排水》 * |
| 黄卫东: "《浮动式滗水器的设计和运行》", 《中国给水排水》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114716005B (en) | 2023-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102105401B (en) | Primary equalization settling tank | |
| CN105064494A (en) | Rainwater closure system | |
| CN104740914B (en) | A kind of multistage anti-clogging plug filtration unit | |
| JP5990423B2 (en) | Septic tank wastewater treatment system | |
| CN201343463Y (en) | Float type novel decanter | |
| CN212450981U (en) | Treatment system of rain and sewage mixed flow water | |
| CN206800576U (en) | Cut dirt and receive pipe | |
| CN111744239A (en) | An intelligent zero-emission drainage method and a drainage sedimentation tank using the same | |
| CN212327507U (en) | Drainage sedimentation tank applying intelligent zero-discharge drainage method | |
| CN114716005B (en) | Control method of vertical decanter based on SBR process | |
| CN104891712B (en) | Integrated water purifier | |
| CN110384961A (en) | Sedimentation basin and its control method | |
| CN106823498A (en) | A kind of flat pond suction dredge | |
| CN106638900A (en) | Online handling storage pond, emergency flood discharge gallery and drainage pump station combined system | |
| CN218188095U (en) | A floating ball self-adjusting liquid level sewage sedimentation mechanism | |
| CN104445030A (en) | Automatic cleaning-type waste liquor collecting and discharging device | |
| CN114506921A (en) | A top-valve decanter | |
| CN204939122U (en) | Integrated water purifier | |
| US1544640A (en) | Siphon | |
| CN108240032B (en) | An initial runoff collection and diversion system with linkage control of water quality and liquid level | |
| CN102659211A (en) | Method and device for automatically removing floating oil and settled sand from oil-containing wastewater | |
| CN204671947U (en) | A kind of drift mud automatic clearing apparatus | |
| KR101921447B1 (en) | Upper water exhaust apparatus | |
| CN206624710U (en) | A kind of grease trap | |
| US8104499B2 (en) | Precision siphon operated septic field dosing system with filtration and backwash |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 901, building 15, No. 189, Tengfei Avenue, Qingyang District, Chengdu, Sichuan 610000 Patentee after: Dewen Huaneng (Chengdu) Technology Co.,Ltd. Country or region after: China Address before: No. 901, building 15, No. 189, Tengfei Avenue, Qingyang District, Chengdu, Sichuan 610000 Patentee before: Dewen Environmental Protection Technology Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |