Sewage disinfection system

Abstract

The utility model relates to a sewage disinfection system which comprises a sewage disinfection reaction unit, a first monitoring subunit, a disinfectant adding subunit, a second monitoring subunit and a disinfectant control subunit, the first monitoring subunit, the disinfectant adding subunit and the second monitoring subunit are all connected with the sewage disinfection reaction unit and the disinfectant control subunit; and one output end of the disinfectant control subunit is communicated with one input end of the disinfectant adding subunit. The regulation and control system has the beneficial effects that the regulation and control system is simple in composition and convenient to operate, and monitored signals are transmitted to the disinfectant control subunit through the first monitoring subunit, the disinfectant adding subunit and the second monitoring subunit so as to regulate and control the disinfectant adding subunit to disinfect sewage in the sewage disinfection reaction unit; the sewage disinfection effect is indicated through the effluent ORP value, the water quality stability of the sewage disinfection effluent is improved, and the ecological safety of the effluent is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage treatment technical field, specifically a sewage disinfection system. BACKGROUND

[0002] The influent of the urban sewage treatment plant contains a large number of microorganisms, bacteria, viruses and other pathogens, and the sewage without disinfection treatment is directly discharged into the water body, which can cause the pathogens to spread through different channels and produce health risks. Therefore, the disinfection process unit in sewage treatment is crucial. At present, the main disinfection method of the urban sewage treatment plant in China is chlorine disinfection.

[0003] However, the operation control of the disinfection process unit of the urban sewage treatment plant still faces a series of problems, for example, ① there is a lag in using the fecal coliform count as the control index of disinfection effect. The fecal coliform count is detected by the multi-tube fermentation method, and the detection time is 48h, which cannot judge the disinfection effect of the effluent in real time. ② The addition of chlorine disinfectant cannot be precisely controlled. At present, the addition amount of chlorine disinfectant in the disinfection unit of the sewage treatment plant is controlled according to the experience of the operation personnel, and the precise addition and dynamic adjustment of the chlorine disinfectant cannot be realized. ③ Excessive chlorine disinfectant can affect the ecological safety of the receiving water body, and research shows that excessive residual chlorine can also have a certain toxic effect on aquatic organisms. In addition, excessive chlorine disinfectant can generate chlorine disinfection by-products. These substances have carcinogenicity and mutagenicity, and pose a long-term threat to human health. Especially in sewage with high organic matter content, the generation amount of by-products increases, which increases the pollution risk of the water body and affects the environmental safety. CONTENT

[0004] In view of the technical problems existing in the prior art, the utility model provides a sewage disinfection system to judge and adjust the addition amount of disinfectant and realize the effective control of the disinfectant.

[0005] The technical scheme for solving the above technical problems is as follows:

[0006] A sewage disinfection system, comprising a sewage disinfection reaction unit, a first monitoring subunit, a disinfectant addition subunit, a second monitoring subunit, a disinfectant control subunit and a central remote control unit.

[0007] The first monitoring subunit, the disinfectant addition subunit and the second monitoring subunit are connected with the sewage disinfection reaction unit and the disinfectant control subunit, the first monitoring subunit is used to monitor the influent flow of the sewage disinfection reaction unit in real time, the disinfectant addition subunit is used to add disinfectant to the sewage disinfection reaction unit, and the second monitoring subunit is used to monitor the oxidation-reduction potential value of the effluent in the sewage disinfection reaction unit in real time.

[0008] An output end of the disinfectant control subunit is in communication with an input end of the disinfectant dosing subunit to regulate the dosing amount of the disinfectant dosing subunit after data collection of the first monitoring subunit, the disinfectant dosing subunit and the second monitoring subunit.

[0009] As a further technical solution, the first monitoring subunit comprises a flow meter and a first sensor arranged on the flow meter, and the flow meter is arranged on a water inlet pipeline of the sewage disinfection reaction unit.

[0010] As a further technical solution, the disinfectant dosing subunit comprises a metering pump, a disinfectant storage tank connected to an input end of the metering pump, a second sensor and a controller, and the metering pump is connected to a disinfection reaction tank in the sewage disinfection reaction unit.

[0011] As a further technical solution, the second monitoring subunit comprises a redox potential instrument and a third sensor arranged on the redox potential instrument, and the redox potential instrument is arranged on a water outlet channel in the sewage disinfection reaction unit.

[0012] As a further technical solution, the disinfectant control subunit comprises an input module, a central processing unit, a memory and an output module, an output end of the input module is connected to an input end of the central processing unit, an output end of the central processing unit is connected to the output module, the central processing unit is connected to the memory and realizes bidirectional transmission of data signals.

[0013] The first sensor, the second sensor and the third sensor are connected to input ends of the input module, and an output end of the output module is connected to the controller to control the flow of the metering pump.

[0014] As a further technical solution, a central remote control unit is further included, the central remote control unit is connected to the disinfectant control subunit and realizes bidirectional transmission of data signals.

[0015] As a further technical solution, the central remote control unit comprises a data server, an application server and a security gateway, and the data server realizes bidirectional transmission of data signals with the application server and the security gateway.

[0016] An output end of the output module is connected to an input end of the security gateway in signal, and data of the data server is read in real time through the application server.

[0017] The utility model discloses beneficial effect is: the utility model control system composition simple, convenient operation, through first monitoring subunit, disinfectant adds subunit, second monitoring subunit, the signal of monitoring is passed to disinfectant control subunit to the disinfectant adding subunit of regulation and control, and the sewage in sewage disinfection reaction unit is disinfected and handled, through the control disinfectant adding amount, effectively reduce the drug consumption and disinfection process unit operating cost of disinfectant, to help sewage treatment plant realizes energy -conserving and carbon -reducing green operation, through the effluent ORP (oxidation -reduction potential) value instruction sewage disinfection effect, equivalent replacement fecal coliform group number and residual chlorine index, improved sewage disinfection effluent water quality stability, has guaranteed the ecological safety of effluent. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the connection structure block diagram of the utility model one kind sewage disinfection system;

[0019] Figure 2 It is the structure block diagram of the utility model first monitoring subunit;

[0020] Figure 3 It is the structure block diagram of the utility model disinfectant adding subunit;

[0021] Figure 4 It is the structure block diagram of the utility model second monitoring subunit;

[0022] Figure 5 It is the structure block diagram of the utility model disinfectant control subunit;

[0023] Figure 6 It is the structure block diagram of the utility model central remote control unit.

[0024] In the drawing, the component list that each sign represents is as follows:

[0025] Sewage disinfection reaction unit 10, inlet conduit 11, disinfection reaction pool 12, effluent channel 13;

[0026] First monitoring subunit 20, flowmeter 21, first sensor 22;

[0027] Disinfectant adding subunit 30, metering pump 31, disinfectant storage tank 32, second sensor 33, controller 34;

[0028] Second monitoring subunit 40, oxidation -reduction potential instrument 41, third sensor 42;

[0029] Disinfectant control subunit 50, input module 51, central processing unit 52, memory 53, output module 54;

[0030] Central remote control unit 60, data server 61, application server 62, security gateway 63. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative work fall within the scope of protection of the present application.

[0032] In the description of the present application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0033] In the description of the present application, the term "for example" is used to indicate "as an example, illustration or explanation". Any embodiment described as "for example" in the present application is not necessarily interpreted as more preferred or more advantageous than other embodiments. The following description is given in order to enable any person skilled in the art to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person skilled in the art can realize the present application without using these specific details. In other examples, well-known structures and processes will not be described in detail in order to avoid unnecessary details making the description of the present application obscure. Therefore, the present application is not intended to be limited to the shown embodiments, but is consistent with the broadest scope of principles and features disclosed in the present application.

[0034] Embodiment 1

[0035] In order to effectively treat sewage, for example, to disinfect sewage, by monitoring the inflow, effluent ORP, effective chlorine dosage and feeding back to the control system, the operator adjusts the disinfectant dosage according to the judgment to realize the dosage control of the disinfectant, see Figure 1 The present embodiment provides a sewage disinfection system, which comprises a sewage disinfection reaction unit 10, a first monitoring subunit 20, a disinfectant dosing subunit 30, a second monitoring subunit 40, a disinfectant control subunit 50, and a central remote control unit 60.

[0036] The first monitoring subunit 20, the disinfectant adding subunit 30, the second monitoring subunit 40 are connected with the sewage disinfection reaction unit 10 and the disinfectant control subunit 50, the first monitoring subunit 20 is used to monitor the water inflow of the sewage disinfection reaction unit 10 in real time, the disinfectant adding subunit 30 is used to add disinfectant to the sewage disinfection reaction unit 10, and the second monitoring subunit 40 is used to monitor the oxidation-reduction potential value of the water outflow in the sewage disinfection reaction unit 10 in real time; at the same time, the first monitoring subunit 20 feeds back the water inflow value monitored in real time to the disinfectant control subunit 50;

[0037] An output end of the disinfectant control subunit 50 is communicated with an input end of the disinfectant adding subunit 30, so as to regulate the adding amount of the disinfectant adding subunit 30 after data collection of the first monitoring subunit 20, the disinfectant adding subunit 30 and the second monitoring subunit 40;

[0038] The central remote control unit 60 is connected with the disinfectant control subunit 50, and bidirectional transmission of data signals is realized.

[0039] It can be explained that the disinfectant in the embodiment can be chlorine disinfectant; the sewage disinfection reaction unit 10 is used for the disinfection contact reaction process of sewage.

[0040] In the specific implementation process, referring to Figure 2 The first monitoring subunit 20 includes a flowmeter 21 and a first sensor 22 arranged on the flowmeter 21, the flowmeter 21 is arranged on the water inflow pipeline 11 of the sewage disinfection reaction unit 10, so as to monitor the inflow of sewage in the sewage disinfection reaction unit 10 in real time, and the first sensor 22 is used to read the data of the flowmeter 21 in real time and transmit the read data to the disinfectant control subunit 50.

[0041] In the specific implementation process, referring to Figure 3 The disinfectant adding subunit 30 includes a metering pump 31, a disinfectant storage tank 32 connected with an input end of the metering pump 31, a second sensor 33 and a controller 34, the metering pump 31 is connected with the disinfection reaction tank 12 in the sewage disinfection reaction unit 10, so as to add disinfectant, for example, chlorine disinfectant, to the sewage disinfection reaction unit 10; the second sensor 33 and the controller 34 are arranged on the metering pump 31, the flow data of the metering pump 31 is monitored in real time through the second sensor 33, and the controller 34 is used to adjust and control the working state and parameters of the metering pump 31, that is, to control the flow of the metering pump 31.

[0042] In the specific implementation process, referring toFigure 4 The second monitoring subunit 40 comprises a redox potential instrument 41 and a third sensor 42 arranged on the redox potential instrument 41. The redox potential instrument 41 is arranged on the effluent channel 13 in the sewage disinfection reaction unit 10 to monitor the redox potential value of the effluent after disinfection in real time. The third sensor 42 is used to read the data of the redox potential instrument 41 in real time and transmit the data to the disinfectant control subunit 50.

[0043] In the specific implementation process, referring to Figure 5 The disinfectant control subunit 50 comprises an input module 51, a central processing unit 52, a memory 53, and an output module 54. An output end of the input module 51 is connected to an input end of the central processing unit 52. An output end of the central processing unit 52 is connected to the output module 54. The central processing unit 52 is connected to the memory 53 and realizes bidirectional transmission of data signals. The first sensor 22, the second flow meter 21, and the third sensor 42 are all connected to the input end of the input module 51. An output end of the output module 54 is connected to the controller 34 to control the flow of the metering pump 31.

[0044] It can be explained that the first sensor 22, the second sensor 33, and the third sensor 42 are all connected to the input module 51. It can be known that the input module 51 is used at least to receive the relevant data detected by each sensor. The memory 53 is used to store system programs and user programs. The central processing unit 52 transmits corresponding instructions to the output module 54 after comparing the data transmitted by the input module 51 according to the programs in the memory 53. The output module 54 is connected to the controller 34 to transmit the instructions of the central processing unit 52 to the metering pump 31, realizing the regulation and control of the disinfectant dosing subunit 30 by the disinfectant control subunit 50.

[0045] In the specific implementation process, referring to Figure 1 , Figure 6The central remote control unit 60 comprises a data server 61, an application server 62 and a security gateway 63, the data server 61 is bidirectionally connected with the application server 62 and the security gateway 63 to transmit data signals; one output end of the output module 54 is signal connected with one input end of the security gateway 63, the data of the central processing unit 52, the result and the instruction are transmitted to the data server 61 to be stored through the application server 62, the application server 62 can read the real-time data and the historical data from the data server 61, and the user can read the data of the first monitoring subunit 20, the disinfectant adding subunit 30, the second monitoring subunit 40 and the disinfectant control subunit 50 through the application server 62, and the user can also send the instruction to the disinfectant control subunit 50 through the application server 62 to realize the remote regulation and control of the disinfectant adding subunit 30.

[0046] It can be explained that the central remote control unit 50 comprises a power supply for providing power supply for the input module 51, the central processing unit 52, the memory 53 and the output module 54.

[0047] It can be explained that in the utility model:

[0048] The flow meter 21 can be an ultrasonic flow meter LRF-3000SC or an electromagnetic flow meter ORBLDBE-50-316L-4F; the first sensor 22 can be a KJT-LSA500 flow sensor;

[0049] The metering pump 31 can be a diaphragm metering pump GM170 or an electromagnetic diaphragm metering pump AKS600;

[0050] The second sensor 33 can be an ACU10L-L flow sensor;

[0051] The controller 34 can be a Milton Roy HED1P1C controller or a Pasfi Da NEMA4 controller;

[0052] The oxidation-reduction potential instrument 41 can be a JD-ZS6 oxidation-reduction potential instrument or a MIK-MDC oxidation-reduction potential instrument;

[0053] The third sensor 42 can be a Y533-A sensor;

[0054] The input module 51 can be a Siemens EM DE08 or an Omron CJ1W-ID261;

[0055] The central processing unit 52 can be a Siemens CPU SR20 or an Omron CJ1M-CPU13-ETN;

[0056] The memory 53 can be Siemens 6ES7952-1AM00-0AA0 or Omron C200H-ME431;

[0057] The output module 54 can be Siemens EM DR08 or Omron EM DT08.

[0058] The utility model discloses a sewage disinfection system, which comprises a sewage disinfection reaction unit 10, a disinfectant control subunit 50, a disinfectant adding subunit 30 and an input module 51.

[0059] The disinfectant adding subunit 30 can add disinfectant into the sewage disinfection reaction unit 10 to disinfect the sewage.

[0060] The first sensor 22 obtains the flow data of the water inlet pipeline 11 measured by the flow meter 21 in real time, the second sensor 33 obtains the flow data of the metering pump 31 in real time, and the third sensor 42 obtains the effluent ORP data measured by the oxidation-reduction potential instrument 41 in real time. The first sensor 22, the second sensor 33 and the third sensor 42 transmit the obtained data signals to the input module 51 in real time. The memory 53 is pre-set with an effluent ORP control value (ORP≥650mV). When the effluent ORP is greater than or equal to 650mV, the effective chlorine adding amount is kept unchanged. When the effluent ORP is less than 650mV, the central processor 52 sends an instruction to increase the adding amount of the metering pump 31 until the effluent ORP is greater than or equal to 650mV. The output module 54 transmits the real-time data signals of the central processor 52 to the data server 61 through the security gateway 63. The user can call the real-time data signals through the application server 62, or send an instruction to the disinfectant control subunit 50 to remotely control the disinfectant adding subunit 30.

[0061] That is, by monitoring the water inlet flow, the effluent ORP and the effective chlorine adding amount of the sewage, and feeding these values back to the disinfectant control subunit 50, the adding amount of the disinfectant can be controlled, the amount of disinfectant can be effectively controlled, and the cost is low and the effect is good.

[0062] It should be noted that in the above examples, the description of each example has its own emphasis, and the parts not described in detail in a certain example can be referred to the related description of other examples.

[0063] Although the preferred embodiments of the utility model have been described, those skilled in the art can make other changes and modifications to the embodiments once they know the basic creative concept.

[0064] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A sewage disinfection system, characterized by, The sewage disinfection reaction unit (10), the first monitoring sub-unit (20), the disinfectant adding sub-unit (30), the second monitoring sub-unit (40), and the disinfectant control sub-unit (50) are connected with each other. The first monitoring sub-unit (20) is used to monitor the water inflow of the sewage disinfection reaction unit (10) in real time, the disinfectant adding sub-unit (30) is used to add disinfectant into the sewage disinfection reaction unit (10), and the second monitoring sub-unit (40) is used to monitor the oxidation-reduction potential value of the water outflow of the sewage disinfection reaction unit (10) in real time. An output end of the disinfectant control sub-unit (50) is in communication with an input end of the disinfectant adding sub-unit (30) to regulate the adding amount of the disinfectant adding sub-unit (30) after data collection of the first monitoring sub-unit (20), the disinfectant adding sub-unit (30), and the second monitoring sub-unit (40).

2. A sewage disinfection system according to claim 1, wherein The first monitoring sub-unit (20) comprises a flow meter (21) and a first sensor (22) arranged on the flow meter (21), and the flow meter (21) is arranged on the water inflow pipeline (11) of the sewage disinfection reaction unit (10).

3. A sewage disinfection system according to claim 2, wherein The disinfectant adding sub-unit (30) comprises a metering pump (31), a disinfectant storage tank (32) connected with the input end of the metering pump (31), a second sensor (33), and a controller (34), and the metering pump (31) is connected with the disinfection reaction tank (12) in the sewage disinfection reaction unit (10).

4. A sewage disinfection system according to claim 3, wherein The second monitoring sub-unit (40) comprises an oxidation-reduction potential instrument (41) and a third sensor (42) arranged on the oxidation-reduction potential instrument (41), and the oxidation-reduction potential instrument (41) is arranged on the water outflow channel (13) in the sewage disinfection reaction unit (10).

5. A sewage disinfection system according to claim 4, wherein The disinfectant control sub-unit (50) comprises an input module (51), a central processing unit (52), a memory (53), and an output module (54), an output end of the input module (51) is connected with an input end of the central processing unit (52), an output end of the central processing unit (52) is connected with the output module (54), the central processing unit (52) is connected with the memory (53) and realizes bidirectional transmission of data signals. The first sensor (22), the second sensor (33), and the third sensor (42) are connected with the input end of the input module (51), and an output end of the output module (54) is connected with the controller (34) to control the flow of the metering pump (31).

6. A sewage disinfection system according to claim 5, wherein The central remote control unit (60) is connected with the disinfectant control sub-unit (50) and realizes bidirectional transmission of data signals.

7. A sewage disinfection system according to claim 6, wherein The central remote control unit (60) comprises a data server (61), an application server (62) and a security gateway (63), the data server (61) is bidirectional with the application server (62) and the security gateway (63) for data signal transmission; An output end of the output module (54) is signal connected with an input end of the security gateway (63), and the data of the data server (61) is read in real time through the application server (62).

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