PLC control system and sewage treatment system thereof

Abstract

The invention discloses a plc control system and a sewage treatment system thereof, the plc control system comprises a power box and a DCS control panel arranged outside the power box, a battery pack and a controller are arranged inside the power box, and a ventilation opening is arranged outside the power box; the protection mechanism is arranged outside the power supply box; the wiring mechanism is arranged in the power box, the protection mechanism of the plc control system is composed of a sliding part, a clamping part and other parts, when the plc control system is started or closed, the sliding part can be pushed to be matched with the clamping part, so that a switch is located in the sliding part, and the protection effect is achieved; the situation that the switch is accidentally turned on or turned off due to manual touch is prevented, and the flocculation efficiency is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of flocculators, and in particular to a PLC control system and a sewage treatment system thereof. Background Art

[0002] In environmental protection requirements, factory sewage needs to be treated to qualified water quality before it can be discharged. In sewage treatment, many use electrocoagulation to precipitate or float impurities in sewage, separate impurities, and purify water. Electrocoagulation uses a high-power power supply to work, usually for about 15 minutes, then reverse the positive and negative poles and run for another 15 minutes.

[0003] When a high-power switching power supply switches polarity at a current of several hundred amperes, it is easy for the power supply to work at the limit state, that is, when working under heavy load, the load is suddenly removed or the power supply is suddenly working under heavy load, which can easily make the PWM of the power supply work at the limit, and the pulse is extremely high, which can easily burn the power supply, and even if it does not burn, the life span is not easy to guarantee. Once the power supply is broken, it cannot be restored in a short time and needs to be returned to the factory for repair. In the current environment protection requirements, it may cause the factory to stop production. In addition, because the switch button of the power supply device is too exposed, the user or other personnel around it may press the switch button when they accidentally collide with the switch button, thereby turning on the electric flocculation device when the flocculation tank is not in use or mistakenly turning off the electric flocculation device when the flocculation tank is in use, thereby shutting down the flocculation tank in use, affecting the flocculation efficiency. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the above-mentioned problem that the switch button of the power supply device is too exposed, which may cause the surrounding users or other personnel to press the switch button accidentally when colliding with the switch button, thereby turning on the electric flocculation device when the flocculation tank is not in use or mistakenly turning off the electric flocculation device when the flocculation tank is in use, thereby shutting down the flocculation tank in use and affecting the flocculation efficiency, a PLC control system is proposed.

[0006] Therefore, the object of the present invention is to provide a PLC control system and a sewage treatment system.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a PLC control system, comprising:

[0008] A power supply box, including a DCS control panel arranged outside the power supply box, a battery pack and a controller are arranged inside the power supply box, and a vent is arranged outside the power supply box; and,

[0009] A protection mechanism, wherein the protection mechanism is arranged outside the power box; and

[0010] A wiring mechanism is arranged inside the power box.

[0011] As a preferred solution of the PLC control system of the present invention, the protection mechanism includes a protection groove and a switch arranged outside the power box, and a sliding part and a locking part are arranged on the protection groove.

[0012] As a preferred solution of the PLC control system of the present invention, the wiring mechanism includes a winding member arranged inside the power box, and a limiting member is arranged on the winding member.

[0013] As a preferred solution of the PLC control system described in the present invention, the sliding part includes a sliding groove arranged on the power box, a protective plate is arranged in the sliding groove, a groove is arranged on the protective plate, and the protective plate is connected to the bottom of the sliding groove through a reset spring.

[0014] As a preferred solution of the PLC control system described in the present invention, the engaging part includes a receiving groove and an engaging groove arranged on the power box, the engaging groove is connected to the receiving groove, a wedge plate is arranged in the engaging groove, and the specification of the wedge plate is compatible with the groove.

[0015] As a preferred solution of the PLC control system described in the present invention, the engaging groove is connected to the wedge plate through a pull rod, a limiting spring is provided on the pull rod, a driving handle is provided outside the power box, and the driving handle is drivingly connected to the pull rod.

[0016] As a preferred solution of the PLC control system of the present invention, the winding member includes a winding shaft arranged inside the power box, and a winding plate is arranged on the winding shaft.

[0017] As a preferred solution of the PLC control system described in the present invention, wherein: a limiting opening is provided on the winding plate, a limiting slot is provided inside the power box, and the limiting opening and the limiting slot are connected through a limiting pin.

[0018] The beneficial effects of the PLC control system of the present invention are as follows: the protection mechanism of the PLC control system is composed of components such as sliding parts and locking parts. When the PLC control system is started or shut down, the sliding part can be pushed to cooperate with the locking part, so that the switch is inside the sliding part, which plays a protective role and prevents the switch from being accidentally started or shut down due to human touch, thereby avoiding affecting the flocculation efficiency.

[0019] In view of the problem that the PLC control system is prone to burn out the power supply and cause the factory to stop production, a sewage treatment system was proposed.

[0020] In order to solve the above technical problems, the present invention also provides the following technical solution: comprising the PLC control system described in any one of claims 1 to 4; and,

[0021] A DCS control unit, the DCS control unit is electrically connected to the controller; and

[0022] A flocculator is electrically connected to the battery pack.

[0023] As a preferred solution of the sewage treatment system and establishment method described in the present invention, the battery pack includes a plurality of building block-type parallel batteries arranged inside a power box, the positive line of the battery pack is connected to the anode column of the flocculator, and the negative line of the battery pack is connected to the cathode column of the flocculator.

[0024] The beneficial effect of the sewage treatment system of the present invention is that the system forms a battery pack by combining multiple batteries connected in parallel in a building block manner and forms a plc control system by combining a controller and other mechanisms, so that when the pulse is too high, only one of the batteries will be burned, so that the entire plc control system can still be used under this condition, reducing the phenomenon of factory shutdown due to power supply damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0026] Figure 1 It is a schematic diagram of the overall structure of the power box in the present invention.

[0027] Figure 2 It is an enlarged schematic diagram of the structure at point A of the power box in the present invention.

[0028] Figure 3 It is a structural schematic diagram of the protection mechanism in the present invention.

[0029] Figure 4It is a schematic cross-sectional view of the structure of the protection mechanism in the present invention.

[0030] Figure 5 It is a schematic diagram of the internal structure of the power box in the present invention.

[0031] Figure 6 It is an enlarged schematic diagram of the structure at point B inside the power box of the present invention.

[0032] Figure 7 It is a schematic diagram of the sewage treatment system in the present invention. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0035] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0036] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0037] Example 1

[0038] Reference Figures 1 to 4 , which is the first embodiment of the present invention. This embodiment provides a PLC control system. When the switch 202 is started, the protective plate 203b needs to be pushed to the wedge plate 204c in the receiving groove 204a to engage. At this time, the switch can be protected from being accidentally touched and causing the flocculator 500 to be closed. When the switch 202 needs to be closed, the driving handle 204f is lifted, and the protective plate 203b is pulled back by the return spring 203c, so that the switch 202 is in an exposed position, and the closing operation can be performed at this time.

[0039] Specifically, the power box 100 includes a DCS control panel 101 arranged on the outside thereof, a battery pack 102 and a controller 103 are arranged inside the power box 100, and a ventilation hole 104 is arranged outside the power box 100; and a protection mechanism 200, which is arranged outside the power box 100; and a wiring mechanism 300, which is arranged inside the power box 100.

[0040] The protection mechanism 200 includes a protection groove 201 and a switch 202 arranged outside the power box 100, the protection groove 201 is provided with a sliding member 203 and a locking member 204, the sliding member 203 includes a sliding groove 203a arranged on the power box 100, a protection plate 203b is arranged in the sliding groove 203a, a groove 203b-1 is arranged on the protection plate 203b, and the protection plate 203b is connected to the bottom of the sliding groove 203a through a return spring 203c;

[0041] The engaging member 204 includes a receiving groove 204a and an engaging groove 204b provided on the power supply box 100. The engaging groove 204b is connected with the receiving groove 204a. A wedge plate 204c is provided in the engaging groove 204b. The specification of the wedge plate 204c is adapted to the groove 203b-1.

[0042] The engaging groove 204b is connected to the wedge plate 204c via a pull rod 204d, a limiting spring 204e is provided on the pull rod 204d, a driving handle 204f is provided outside the power supply box 100, and the driving handle 204f is drivingly connected to the pull rod 204d.

[0043] The vent 104 can keep the internal environment of the power box 100 ventilated. When the switch 202 is not in use, the protective plate 203b is pushed to slide on the sliding groove 203a to the receiving groove 204a, and the wedge plate 204c is squeezed. The wedge plate 204c will slide up in the engaging groove 204b. At this time, the wedge plate 204c is engaged with the groove 203b-1 on the protective plate 203b. At this time, the protective plate 203b is in a closed state; when the switch 202 When it is needed, pull the driving handle 204f, and the driving handle 204f drives the pull rod 204d to pull the wedge plate 204c out of the groove 203b-1. At this time, the reset spring 203c will drive the protective plate 203b to withdraw from the receiving groove 204a. At this time, the protective plate 203b is in the open state. When the protective plate 203b is in the closed state, it can protect the switch 202 to prevent it from being accidentally touched, and it can also prevent dust from falling when it is not used for a long time.

[0044] Example 2

[0045] Reference Figures 5-6, which is the second embodiment of the present invention, is based on the previous embodiment, with the difference that: since a plurality of batteries 102a are arranged in the power box 100, more connecting wires need to be arranged, and in order to ensure that the various connecting wires inside the power box 100 are arranged neatly and orderly, a wiring mechanism 300 is arranged, and in order to prevent the connecting wires from scattering, a limiter 302 is arranged on the wiring mechanism 300, which is beneficial to maintaining the beautiful layout of the circuits inside the power box 100 and facilitating maintenance work.

[0046] Specifically, the wiring mechanism 300 includes a winding member 301 arranged inside the power box 100, and a limiting member 302 is arranged on the winding member 301. The winding member 301 includes a winding shaft 301a arranged inside the power box 100, and a winding plate 301b is arranged on the winding shaft 301a. A limiting opening 301b-1 is arranged on the winding plate 301b, and a limiting groove 301b-2 is arranged inside the power box 100. The limiting opening 301b-1 and the limiting groove 301b-2 are connected by a limiting pin 301b-3.

[0047] Among them, there are multiple limit openings 301b-1 and they are arranged in a ring shape, and the limit groove 301b-2 can always find the limit opening 301b-1 aligned with it. When the winding plate 301b rotates, the connecting wire will be wound on the winding shaft 301a between the winding plate 301b and the inner wall of the power box 1. When the connecting wire is wound up, the limit pin 301b-3 is inserted into the limit opening 301b-1 on the winding plate 301b and its corresponding limit groove 301b-2. At this time, the winding plate 301b will not rotate and cause the connecting wire on it to scatter.

[0048] Example 3

[0049] Reference Figures 1 to 7 , which is the third embodiment of the present invention, provides a sewage treatment system, which changes the positive and negative pole operation mode of the PLC control system through a DCS control unit 400, wherein a plurality of batteries 102a are arranged in parallel in a building block manner to form a battery pack 102, so that when one of the batteries 102a is damaged, it will not affect the working state of the entire system, which can increase the service life of the power supply and reduce the situation where the factory needs to stop production due to partial power supply damage.

[0050] Specifically, the DCS control unit 400 is electrically connected to the controller 103 ; and the flocculator 500 is electrically connected to the battery pack 102 .

[0051] The battery pack 102 includes a plurality of parallel-connected batteries 102a arranged inside the power supply box 100. The positive line of the battery pack 102 is connected to the anode column of the flocculator 500, and the negative line of the battery pack 102 is connected to the cathode column of the flocculator.

[0052] Among them, the DCS control unit 400 can transmit a signal to the controller 103 to control the change of the positive and negative operating modes of the power supply, wherein the controller 103 and the battery pack 102 are connected by a connecting line, and the battery pack 102 adopts a building block parallel connection method so that when any battery 102a is damaged, the entire line transmission is not affected, and the flocculator 500 can feedback the current to the controller through the negative line connected to its cathode column.

[0053] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0054] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0055] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. PLC control system, characterized by: include, A power supply box (100), comprising a DCS control panel (101) arranged outside the power supply box (100), a battery pack (102) and a controller (103) arranged inside the power supply box (100), and a vent (104) arranged outside the power supply box (100); and, a protection mechanism (200), wherein the protection mechanism (200) is arranged outside the power supply box (100); and A wiring mechanism (300), wherein the wiring mechanism (300) is arranged inside the power box (100).

2. The plc control system according to claim 1, characterized in that: The protection mechanism (200) comprises a protection groove (201) and a switch (202) arranged outside the power supply box (100); a sliding member (203) and a locking member (204) are arranged on the protection groove (201).

3. The plc control system according to claim 1, characterized in that: The wiring mechanism (300) comprises a winding member (301) arranged inside the power supply box (100), and a limiting member (302) is arranged on the winding member (301).

4. The plc control system according to claim 2, characterized in that: The sliding member (203) comprises a sliding groove (203a) arranged on the power supply box (100), a protective plate (203b) is arranged in the sliding groove (203a), a groove (203b-1) is arranged on the protective plate (203b), and the protective plate (203b) is connected to the bottom of the sliding groove (203a) via a return spring (203c).

5. The plc control system according to claim 4, characterized in that: The engaging member (204) comprises a receiving groove (204a) and an engaging groove (204b) arranged on the power supply box (100); the engaging groove (204b) is connected to the receiving groove (204a); a wedge plate (204c) is arranged in the engaging groove (204b); and the specification of the wedge plate (204c) is compatible with the groove (203b-1).

6. The plc control system according to claim 5, characterized in that: The engaging groove (204b) is connected to the wedge plate (204c) via a pull rod (204d), a limiting spring (204e) is provided on the pull rod (204d), a driving handle (204f) is provided outside the power supply box (100), and the driving handle (204f) is drivingly connected to the pull rod (204d).

7. The plc control system according to claim 3, characterized in that: The wire winding member (301) comprises a wire winding shaft (301a) arranged inside the power supply box (100), and a wire winding plate (301b) is arranged on the wire winding shaft (301a).

8. The sewage treatment system according to claim 7, characterized in that: The winding plate (301b) is provided with a limiting opening (301b-1), the power supply box (100) is provided with a limiting slot (301b-2) inside, and the limiting opening (301b-1) and the limiting slot (301b-2) are connected via a limiting pin (301b-3).

9. Sewage treatment system, characterized by: A plc control system comprising any one of claims 1 to 8; and A DCS control unit (400), the DCS control unit (400) being electrically connected to the controller (103); and A flocculator (500) is electrically connected to the battery pack (102).

10. The sewage treatment system according to claim 9, characterized in that: The battery pack (102) comprises a plurality of modular parallel-connected batteries (102a) arranged inside the power supply box (100); the positive line of the battery pack (102) is connected to the anode column of the flocculator (500); and the negative line of the battery pack (102) is connected to the cathode column of the flocculator.

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