Modular control system for water treatment pool

Abstract

The modular control system of a water treatment pool relates to a control system dedicated to water purification treatment, including a control cabinet and a plurality of sub-function modules connected to the control cabinet through a bus cable. Each sub-function module has its own ID, and each sub-function module is used to control a device or a group of devices in the water treatment pool. There is also a button module connected to the bus cable, and the button module has an ID encoder. It has the advantages of simple structure and convenient operation.

Description

Technical Field

[0001] The invention relates to a control system, in particular to a modular control system for a water treatment pool. Background Art

[0002] In the field of surface water purification or sewage treatment, treatment tanks consisting of reaction tanks and sedimentation tanks are often used to purify the water. At present, water treatment processes are becoming more and more advanced, and at the same time, the automation, integration and modularization of water treatment plants are required to be improved accordingly. The removal of suspended matter in the water treatment process is crucial and directly affects the quality of the effluent. The reaction sedimentation in the water treatment tank is an important process for removing suspended matter. The sludge from the front end of the reaction tank to the rear end of the sedimentation tank is distributed in a stepped manner. The sludge at the end of the sedimentation tank depends on the selected sedimentation process. The reaction tank and the sedimentation tank are both equipped with a sludge pump and a sludge pipe, and the sludge pipe is connected to a sludge valve. The sludge is sucked into the sludge pipe and discharged out of the tank by opening the sludge valve.

[0003] Each mud discharge valve on the mud discharge pipe of the above-mentioned water treatment pool is equipped with an electric control box, which is designed and manufactured according to the control requirements and is equipped with buttons and indicator lights. One of the existing control methods is that the operator goes to the water treatment pool to operate the control box to discharge mud, and the other is to transmit the valve status signal to the main control cabinet through the control cable, and the main control cabinet automatically controls it by designing the mud discharge cycle and mud discharge time. Although both methods can achieve mud discharge, they are relatively arbitrary, and the mud discharge cycle and mud discharge time are difficult to control. There are many control cables connecting each electric control box to the main control cabinet, and the construction is highly professional. The equipment cannot be restored in a short time after being damaged, and the compatibility is not strong. It is difficult to add equipment to the completed system, which is inconvenient for later maintenance and function upgrades.

[0004] In addition, traditional water treatment pools are also equipped with flushing devices and various instruments. The control systems of these devices generally include a control cabinet consisting of an on-site valve control cabinet and a PLC control cabinet, power cables, control cables, signal cables, bridges and pipelines. The equipment is large in size, so the number of cables increases accordingly. The equipment is full of cables, the on-site installation is complicated, the engineering workload is large, and it is easy to cause fire or electric shock accidents. When the cables are damaged, the entire system will be paralyzed and cannot be used. Recovery requires professional technicians and takes a long time to complete.

[0005] In view of the shortcomings of traditional control methods, it is necessary to design and develop a modular intelligent control system to improve the above-mentioned shortcomings of traditional water treatment pool control systems. Summary of the invention

[0006] The main purpose of the present invention is to provide a modular control system for a water treatment pool with a simple structure;

[0007] Another object of the present invention is to provide a modular control system for a water treatment pool that is easy to operate.

[0008] To achieve the main purpose of the present invention, the water treatment modular control system provided by the present invention includes a control cabinet and a plurality of sub-function modules connected to the control cabinet via a bus cable. Each sub-function module has its own ID, and each sub-function module is used to control a device or a group of devices in the water treatment pool. There is also a button module connected to the bus cable, and the button module has an ID encoder.

[0009] It can be seen from the above scheme that each sub-function module has its own ID, that is, its own identity address code. When a certain device needs to be controlled, as long as the ID encoding is performed through the button module to correspond to the ID of the sub-function module corresponding to the device, the control cabinet can send a control signal to the sub-function module corresponding to the device or the group of devices through ID identification, so that the device can operate as needed, and the sub-function modules with the same function have exactly the same structure, only the ID is different. The sub-function modules and the button modules are connected by bus, which eliminates the complex and numerous control cables in the middle. On the other hand, the modular operation buttons make the overall structure relatively simple, and there is no need to consider issues such as the cabinet panel opening and the operability of the installation position.

[0010] A further solution is that the bus cable is a two-core cable; the connection between the sub-function module and the two-core cable is a needle-piercing connection, a connector connection, or a crimping connection. This solution brings great convenience to fault repair. Once a sub-function module fails and needs to be replaced with a new sub-function module, it is only necessary to write the ID into the new sub-function module and simply insert the needle of the new sub-function module into the two-core cable, or insert the connector or crimp.

[0011] A further solution is that the two-core cable has a cross-sectional shape that is a combination of a circle and a polygon; and the sub-functional module has a power-collecting head shape that matches the cross-sectional shape.

[0012] To achieve another purpose of the present invention, another further solution is that the bus cable is a two-core cable; the button module is connected to the two-core cable by a needle-piercing connection. This solution brings convenience to the equipment control operation on the water treatment pool site. The operator carries a button module with him. When a certain device needs to be controlled on site, he only needs to pierce the needle of the button module into the two-core cable or insert it into the connector or crimp it, and input the ID and control code of the sub-function module of the device through the ID encoder, and the main control cabinet can control the device.

[0013] A further solution is that the two-core cable has a combined cross section of a circle and a polygon; the button modules all have a power-taking head shape that matches the combined cross section. The advantage of this solution is that it can effectively avoid wiring errors when the button modules take power.

[0014] A further solution is that the two-core cable has a core, an outer insulating layer and a traceless insulating layer between the core and the outer insulating layer. The advantage of this solution is that it can greatly increase the safe service life of the cable and effectively prevent leakage.

[0015] A further solution is that the traceless insulating layer is insulating oil or insulating silicone or insulating silicone grease.

[0016] A further solution is that the bus cable is a common cable for module power supply and data signals.

[0017] A further solution is that the equipment includes a pneumatic valve or a hydraulic quick-opening valve or an electric valve or a flushing device or an instrument or a mud pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of a first embodiment of the present invention;

[0019] Figure 2 is a schematic diagram of a second embodiment of the present invention;

[0020] Figure 3 is a schematic diagram of a third embodiment of the present invention;

[0021] Figure 4 is a schematic diagram of a fourth embodiment of the present invention;

[0022] Figure 5 is a schematic diagram of a fifth embodiment of the present invention;

[0023] Figure 6 is a cross-sectional structural diagram of a bus cable of the present invention;

[0024] Figure 7 It is a structural schematic diagram of the power-taking head in the sub-functional module and the button module of the present invention;

[0025] Figure 8 It is a schematic diagram of the power taking state of the power taking head of the present invention being connected to the bus cable.

[0026] The various solutions of the present invention are further described below in conjunction with various embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0027] First embodiment

[0028] See also Figure 1The modular control system for a water treatment pool in this example has a control main cabinet 1 far away from a water treatment pool 10. The water treatment pool 10 has 5 pneumatic valves, 5 hydraulic quick-opening valves, 5 electric valves, 5 flushing devices and 4 instruments. Therefore, pneumatic valve control modules 31, pneumatic valve control modules 32, pneumatic valve control modules 33, pneumatic valve control modules 34 and pneumatic valve control modules 35 are respectively used to control the 5 pneumatic valves; hydraulic quick-opening valve control modules 41, hydraulic quick-opening valve control modules 42, hydraulic quick-opening valve control modules 43, hydraulic quick-opening valve control modules 44 are respectively used to control the 5 hydraulic quick-opening valves. 4 and a hydraulic quick-opening valve control module 45; an electric valve control module 51, an electric valve control module 51, an electric valve control module 52, an electric valve control module 53, an electric valve control module 54 and an electric valve control module 55 for controlling five electric valves respectively; a flushing device control module 61, a flushing device control module 62, a flushing device control module 63, a flushing device control module 64 and a flushing device control module 65 for controlling five flushing devices respectively; an instrument control module 71, an instrument control module 72, an instrument control module 73 and an instrument control module 74 for controlling four instruments respectively.

[0029] See also Figure 1 The control cabinet 1 is electrically connected to the above-mentioned sub-functional modules through the bus cable 2, that is, the bus 2 is electrically connected to the pneumatic valve control module 31, the pneumatic valve control module 32, the pneumatic valve control module 33, the pneumatic valve control module 34 and the pneumatic valve control module 35, the hydraulic quick-opening valve control module 41, the hydraulic quick-opening valve control module 42, the hydraulic quick-opening valve control module 43, the hydraulic quick-opening valve control module 44, the hydraulic quick-opening valve control module 45, the electric valve control module 51, the electric valve control module 51, the electric valve control module 52, the electric valve control module 53, the electric valve control module 54, the electric valve control module 55, the flushing device control module 61, the flushing device control module 62, the flushing device control module 63, the flushing device control module 64, the flushing device control module 65, the instrument control module 71, the instrument control module 72, the instrument control module 73 and the instrument control module 74, and these sub-functional modules have their own IDs.

[0030] Two button modules are placed at the water treatment pool site 10, one of which is carried by the operator, and the other is a spare part, which is used to prevent the button module carried by the operator from malfunctioning. The button module is provided with an ID encoder. When the operator finds that a certain device needs to change its working state at the water treatment pool site 10, for example, when the operator finds that a certain mud discharge pipe needs to open the corresponding pneumatic valve for mud discharge, the encoder of the button module 8 can be used to input the ID of the pneumatic valve control module 33 that controls the pneumatic valve, and the button module is used to issue a control instruction, and the control cabinet 1 can control the pneumatic valve to open for mud discharge.

[0031] All the above sub-function modules have the same structure, and only have different IDs. The bus cable 2 uses a two-core cable, which serves as a power cable and a data cable at the same time.

[0032] See also Figure 6 The bus cable 2 has a positive electrode core 21, a negative electrode core 22, and a non-marking insulating layer 23 and 24 wrapped in the core in the middle layer. In this example, the non-marking insulating layer 23 and 24 are made of insulating silicone grease, and the insulating layer 25 wrapped in the non-marking insulating layer 23 and the insulating layer 26 wrapped in the non-marking insulating layer 24 can be made of the insulating material of the outer layer of the existing cable core. Figure 6 It can be seen that the cross-sectional shape of the two-core cable used in the bus cable of this example is a combination of a circle and a square.

[0033] As mentioned above, each sub-functional module has the same structure, and their power supply heads and the power supply heads of the button module also have the same structure. Figure 7 It is a schematic diagram of the power-collecting head 81 of the button module, which has a power-collecting head shape that matches the cross-section of the two-core cable 2, that is, the cross-sectional shape of the power-collecting head 81 is a combination of a semicircle and a semi-square, the positive pole power-collecting needle 82 is located in the semicircle, and the negative pole power-collecting needle is located in the semi-square.

[0034] See also Figure 8 When the power extraction head 81 penetrates the bus cable 2, the positive power extraction needle 82 successively penetrates the insulating layer 25 and the traceless insulating layer 23 to be electrically connected to the positive battery cell 21; the negative power extraction needle 83 successively pierces the insulating layer 26 and the traceless insulating layer 24 to be electrically connected to the negative battery cell 22. Thus, the button module can be operated. The advantage of the present invention is that the button module can be operated. Figure 1 The operation can be performed by piercing the bus cable 2 anywhere to make an electrical connection, and is not limited to being performed near the device to be operated. When the operation is completed, the operator can pull out the power extraction head 81 of the button module from the bus cable 2. Since the power extraction needle is thin enough, the insulating layers 25 and 26 can basically close the pinhole, and the traceless insulating layers 23 and 24 can completely and tracelessly close the pinhole to achieve safe insulation.

[0035] In this example, for the frequently operated equipment, its corresponding sub-function modules are easily damaged, so it is appropriate to use a needle-piercing power connection. For the sub-function modules that are seldom operated or not easily damaged, a fixed electrical connection with the bus cable can be used.

[0036] Second embodiment

[0037] See also Figure 2One of the differences between this example and the previous example is that the network form of the system is different. This example is a general network form. In addition, the water treatment pool in this example is relatively small, and the equipment that needs to be controlled is only 2 electric valves, 2 sets of flushing devices and 1 instrument. Therefore, the system in this example only sets up electric valve control modules 51 and 52, flushing device control modules 61 and 62, and instrument control module 71 at the water treatment pool site 10, and the module power supply 9 and the control cabinet 1 far away from the water treatment pool site 10 are also electrically connected to these sub-function modules through the bus cable 2. In addition, the bus cable in this example uses a two-core cable, and its cross-sectional shape is a combination of a circle and a regular hexagon. Therefore, the shape of the power head of the sub-function module is a combination of a semicircle and a semi-regular hexagon. Since the water treatment pool in this example is relatively small, two button modules 8 can be fixed and electrically connected at appropriate positions of the bus cable where each device can be visually observed, which is also convenient for operators to control on-site.

[0038] Third embodiment

[0039] See also Figure 3 One of the differences between this example and the previous two examples is that the network form of the system is different. This example adopts a bus structure. The equipment that needs to be controlled in the water treatment pool of this example includes 3 pneumatic valves, 3 hydraulic quick-opening valves, 2 electric valves, 2 flushing devices and 2 instruments. Therefore, the system of this example is equipped with pneumatic valve control modules 31, 32 and 33, hydraulic quick-opening valve control modules 41, 42 and 43, electric valve control modules 51 and 52, flushing control modules 61 and 62, instrument control modules 71 and 72, and a button control module 8 at the water treatment pool site. These sub-function control modules are electrically connected to the control cabinet 1 through the bus cable 2. The bus cable 2 of the system of this example adopts a two-core cable, and its cross-sectional shape is a combination of an ellipse and a regular octagon. The shape of the power supply head of each sub-function module is a combination of a semi-ellipse and a semi-regular octagon.

[0040] Fourth embodiment

[0041] See also Figure 4One of the differences between this example and the previous two examples is that the network form of the system is different. This example adopts a star bus structure. The equipment that needs to be controlled in the water treatment pool in this example includes 3 pneumatic valves, 5 electric valves, 2 sets of flushing devices and 4 instruments. Therefore, the system in this example is equipped with pneumatic valve control modules 31, 32 and 33, electric valve control modules 51, 52, 53, 54 and 55, flushing control modules 61 and 62, instrument control modules 71, 72, 73 and 74, and a portable button control module and a spare button control module. These sub-function control modules are electrically connected to the control cabinet 1 through the bus cable 2. The cross-sectional shape of the two-core cable used in the bus cable 2 in this example is a combination of a circular and a square cross-sectional shape, and the shape of the power supply head of each sub-function module is a combination of a semicircle and a semi-square shape.

[0042] Fifth embodiment

[0043] See also Figure 5 One of the differences between this example and the previous two examples is that the network form of the system is different. This example adopts a tree bus structure. The equipment that needs to be controlled in the water treatment pool in this example includes 4 pneumatic valves, 3 hydraulic quick-opening valves, 2 sets of flushing devices and 2 instruments. Therefore, the system in this example is equipped with pneumatic valve control modules 31, 32, 33 and 34, hydraulic quick-opening valve control modules 41, 42 and 43, flushing control modules 61 and 62, instrument control modules 71 and 72, button module 8, and a portable button control module at the water treatment pool site. These sub-function control modules are electrically connected to the control cabinet 1 through the bus cable 2. The cross-sectional shape of the two-core cable used in the bus cable 2 in this example is a combination of a circular and a square cross-sectional shape, and the shape of the power supply head of each sub-function module is a combination of a semicircle and a semi-square shape.

[0044] Sixth embodiment

[0045] The difference between this example and the first embodiment is as follows: considering that the five pneumatic valves usually have uniform operation when in use, and the five flushing devices also have uniform operation when in use, only one pneumatic valve control module 31 is used to control the five pneumatic valves, and one flushing device control module 61 is used to control the five flushing devices. In addition, each sub-function module in this example is connected to the bus cable by crimping, while the button module 8 is connected to the bus cable by connector plugging.

[0046] Other Implementations

[0047] In the above-mentioned embodiments of the present invention, the sub-functional modules are electrically connected to the bus cables or electrically connected by needle puncture as required.

[0048] The traceless insulating layers 23 and 24 of the two-core cable may also be made of insulating oil or insulating silica gel.

Claims

1. A modular control system for a water treatment pool, comprising a main control cabinet and a plurality of sub-function modules connected to the main control cabinet via a bus cable; Features: The bus cable is a two-core cable, which is used as a power cable and a data cable at the same time. The two-core cable has a core, an outer insulating layer and a traceless insulating layer located between the two. The two-core cable has a cross-sectional shape that is a combination of a circle and a polygon. The sub-function module is connected to the two-core cable by a needle connection, a connector connection or a crimping connection. Each of the sub-function modules has its own ID. Each of the sub-function modules is used to control a device or a group of devices in the water treatment pool. The sub-function module has a power head shape that matches the cross-sectional shape. A button module connected to the bus cable has an ID encoder. The button module is connected to the two-core cable by needle connection, connector connection or crimping. The button module has a power-collecting head shape that matches the cross-sectional shape.

2. The modular control system for a water treatment pool according to claim 1, characterized in that: The traceless insulating layer is insulating oil or insulating silica gel or insulating silicone grease.

3. The modular water treatment control system according to claim 1 or 2, characterized in that: The equipment includes a pneumatic valve, a hydraulic quick-opening valve, an electric valve, a flushing device, an instrument, or a mud pump.

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