CN203012529U - Constant-liquid-level automatic control system based on sewage processing - Google Patents
Constant-liquid-level automatic control system based on sewage processing Download PDFInfo
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- CN203012529U CN203012529U CN 201220607389 CN201220607389U CN203012529U CN 203012529 U CN203012529 U CN 203012529U CN 201220607389 CN201220607389 CN 201220607389 CN 201220607389 U CN201220607389 U CN 201220607389U CN 203012529 U CN203012529 U CN 203012529U
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- cesspool
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Abstract
The utility model discloses a constant-liquid-level automatic control system based on sewage processing. The system comprises a cesspool (1) with pollution discharging pumps, wherein a pressure sensor (2) is arranged in the cesspool (1). The pollution discharging pumps are equipped with an automatic control mechanism which controls work of motors of the pollution discharging pumps and is connected with the pressure sensor (2). The constant-liquid-level automatic control system based on sewage processing is simple in structure and reasonable in design, can automatically adjust the pollution discharging pumps according to pressure change of the cesspool (1), saves energy, protects the environment, and employs a soft starter design to avoid impacts on electrical network and mechanical equipment in the starting or stopping process of the motors as well as complexity of manual operation.
Description
Technical field
The utility model relates to the liquid level control field, specifically, is based on the permanent automatic Control Systems of Liquids Height of wastewater treatment.
Background technology
Water pump is consuming mass energy as the universal machine of drainage system, and in China, the power consumption of annual water pump accounts for 21% of electric energy wastage in bulk or weight.Take wastewater treatment as example, in existing many commercial production, all need to relate to this flow process, and in order to guarantee the normal operation of whole system, need the waste water in factory is in time emitted.In existing unwatering system, usually need to control by manually-operated, as: manually boot the input of dredge pump and withdraw from, the variable valve on the adjusting dredge pump is to change its rotating speed etc., in actual application, staff's working experience is very important, although can keep the normal operation of system, as mentioned above, the power consumption of water pump is huge, particularly in During Process of Long-term Operation, the consumption of energy is inestimable especially.Development along with modern industry control, the utility model proposes a kind of control system that can automatically regulate pump rotary speed, drop into and withdraw from, can not only satisfy the requirement of factory's drainage, can also make whole system remain energy-efficient optimum condition, have market potential.
The utility model content
The purpose of this utility model is to provide the permanent automatic Control Systems of Liquids Height based on wastewater treatment, adopt the design of automatic controls, in use, can change according to the pressure of cesspool, automatically regulate sewage pump, make the water level of cesspool remain on constant setting liquid level, and satisfy the demand of factory's drainage, make whole system remain energy-efficient optimum condition.
the utility model is achieved through the following technical solutions: based on the permanent automatic Control Systems of Liquids Height of wastewater treatment, comprise the cesspool that is provided with dredge pump, be provided with pressure transducer in described cesspool, for reaching energy-saving and cost-reducing, reduce the purpose of dredge pump operating load, the utility model is provided with the automatic controls of controlling its machine operation on described dredge pump, described automatic controls is connected on pressure transducer, it can change according to the pressure of cesspool, automatically sewage pump is regulated, reasonable in design, greatly reduced cost of labor, the input of commercial power, needing to be particularly suitable in the commercial production of long-time running, has market potential.
In the utility model, described automatic control system mainly is comprised of the frequency converter and the programmable logic controller (PLC) that are connected successively, be provided with pressure unit on described pressure transducer, described pressure unit, sewage pump are connected with frequency converter respectively, in actual application, pressure transducer compares itself and setting value for detection of the pressure in cesspool, makes cesspool remain on permanent liquid level.Analog quantity because pressure transducer detects what return, can not directly deliver to frequency converter, so also need by pressure unit, the analog quantity that pressure transducer detects to be converted into digital quantity, and then deliver in frequency converter, compare with the set-point of frequency converter, and then by frequency converter, its signal results is relatively delivered in programmable logic controller (PLC) (PLC), by to the PLC programming, thereby realize control to the dredge pump rotating speed.
For better realizing said structure, also be provided with soft initiator on described programmable logic controller (PLC), described programmable logic controller (PLC) is connected on sewage pump by soft initiator, soft initiator is that the soft start of a kind of current collection machine, soft stop, light-load energy saving and multi-protective function are in the novel motor control assembly of one, when dredge pump starts, soft initiator can be realized the level and smooth startup of dredge pump motor, reduces starting current, avoids starting overcurrent tripping; During parking, the torque shock ends that soft initiator also can avoid free parking to cause realizes the soft stop function, makes constant level automatically excessive, thereby has avoided in electric motor starting, docking process impact and manually-operated numerous and diverse property that electrical network and plant equipment are caused.Certainly, when soft initiator has more ensured frequency converter failure, the normal operation of system, guarantee uninterrupted draining.
Sewage pump described in the utility model comprises a pump that is connected with frequency converter respectively, No. two pumps, a described pump, No. two pumps are connected on soft initiator, in actual application, can make a pump, No. two pumps realize having holidays by turns by software programming, extend the mechanical serviceable life of equipment.
Described programmable logic controller (PLC) is S7-200PLC controller, compact conformation, and scalability is good, its control scale can be from some to hundreds of point, in actual application, also can form PLC-PLC network or microcomputer-PLC network, thereby complete larger engineering.
The utility model compared with prior art has the following advantages and beneficial effect:
(1) the utility model is simple in structure, adopt the design of automatic controls, can change according to the pressure of cesspool, automatically sewage pump is regulated, reasonable in design, greatly reduced the input of cost of labor, commercial power, needing to be particularly suitable for to have a market potential in the commercial production of long-time running.
(2) the utility model is reasonable in design, the setting of frequency converter and soft initiator, not only can realize the adjusting to the dredge pump rotating speed, also possess soft start-stop function, thereby avoid in electric motor starting, docking process impact and manually-operated numerous and diverse property that electrical network and plant equipment are caused.
(3) programmable logic controller (PLC) described in the utility model can adopt S7-200PLC controller, compact conformation, scalability is good, its control scale can be from some to hundreds of point, in actual application, also can form PLC-PLC network or microcomputer-PLC network, thereby complete larger engineering, applied range.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1-cesspool, 2-pressure transducer, 3-number pump, 4-No. two pumps.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment:
the utility model is based on the permanent automatic Control Systems of Liquids Height of wastewater treatment, be mainly used in the wastewater treatment of factory's drainage, its structure as shown in Figure 1, comprise the cesspool 1 that is provided with dredge pump, be provided with pressure transducer 2 in cesspool 1, for reaching energy-saving and cost-reducing, reduce the operating load of dredge pump, the utility model also is provided with the automatic controls of controlling its machine operation on dredge pump, as shown in Figure 1, automatic controls is connected on pressure transducer 2, it can change according to the pressure of cesspool 1, automatically sewage pump is regulated, reasonable in design, greatly reduced cost of labor, the input of commercial power, needing to be particularly suitable in the commercial production of long-time running, has market potential.
in the utility model, automatic control system mainly is comprised of the frequency converter and the programmable logic controller (PLC) that are connected successively, be provided with pressure unit on pressure transducer 2, pressure unit, sewage pump is connected with frequency converter respectively, as shown in Figure 1, pressure transducer 2 is a kind of pressure signal acquisition modules for detection of 1 li of cesspool, for keeping the permanent liquid level of cesspool 1, pressure signal and the setting value that usually it need to be gathered gained compare, in actual application, analog quantity because pressure transducer 2 detects what return, can not directly deliver to frequency converter, so also need by pressure unit, the analog quantity that pressure transducer 2 detects to be converted into digital quantity, and then deliver in frequency converter, compare with the set-point of frequency converter, and then by frequency converter, its signal results is relatively delivered in programmable logic controller (PLC) (PLC), by PLC is programmed, thereby realize the control to the dredge pump rotating speed, gather in actual application, programmable logic controller (PLC) can adopt S7-200PLC controller, compact conformation, scalability is good, its control scale can be from some to hundreds of point, in actual application, also can form PLC-PLC network or microcomputer-PLC network, thereby complete larger engineering.
For better realizing said structure, as shown in Figure 1, the utility model also is provided with soft initiator on programmable logic controller (PLC), programmable logic controller (PLC) is connected on sewage pump by soft initiator, soft initiator be the soft start of a kind of current collection machine, soft stop, light-load energy saving and multi-protective function in the novel motor control assembly of one, when dredge pump started, soft initiator can be realized the level and smooth startup of dredge pump motor, reduce starting current, avoid starting overcurrent tripping; During parking, the torque shock ends that soft initiator also can avoid free parking to cause realizes the soft stop function, makes constant level automatically excessive, thereby has avoided in electric motor starting, docking process impact and manually-operated numerous and diverse property that electrical network and plant equipment are caused.Certainly, when soft initiator has more ensured frequency converter failure, system still can move, and guarantees uninterrupted draining.
In the utility model, sewage pump comprises a pump 3, No. two pumps 4, as shown in Figure 1, a pump 3, No. two pumps 4 are connected with frequency converter respectively, and carry out the start-stop car by soft initiator and control, as shown in Figure 1, a pump 3, No. two pumps 4 are connected on soft initiator, in actual application, can make by the software programming to PLC a pump 3, No. two pumps 4 realize having holidays by turns, extended the mechanical serviceable life of equipment.
The utility model is simple in structure, reasonable in design, can not only change according to the pressure of cesspool 1, automatically sewage pump is regulated, energy-conserving and environment-protective, adopt the design of soft initiator, can also avoid in electric motor starting, docking process impact and manually-operated numerous and diverse property that electrical network and plant equipment are caused.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, any simple modification, equivalent variations that every foundation technical spirit of the present utility model is done above embodiment are within all falling into protection domain of the present utility model.
Claims (5)
1. based on the permanent automatic Control Systems of Liquids Height of wastewater treatment, comprise the cesspool (1) that is provided with dredge pump, be provided with pressure transducer (2) in described cesspool (1), it is characterized in that: be provided with the automatic controls of controlling its machine operation on described dredge pump, described automatic controls is connected on pressure transducer (2).
2. the permanent automatic Control Systems of Liquids Height based on wastewater treatment according to claim 1, it is characterized in that: described automatic controls mainly is comprised of the frequency converter and the programmable logic controller (PLC) that are connected successively, be provided with pressure unit on described pressure transducer (2), described pressure unit, sewage pump are connected with frequency converter respectively.
3. the permanent automatic Control Systems of Liquids Height based on wastewater treatment according to claim 2, it is characterized in that: also be provided with soft initiator on described programmable logic controller (PLC), described programmable logic controller (PLC) is connected on sewage pump by soft initiator.
4. the permanent automatic Control Systems of Liquids Height based on wastewater treatment according to claim 3, it is characterized in that: described sewage pump comprises a pump (3), No. two pumps (4) that are connected with frequency converter respectively, and a described pump (3), No. two pumps (4) are connected on soft initiator.
5. the permanent automatic Control Systems of Liquids Height based on wastewater treatment according to claim 4, it is characterized in that: described programmable logic controller (PLC) is S7-200PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607389 CN203012529U (en) | 2012-11-16 | 2012-11-16 | Constant-liquid-level automatic control system based on sewage processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220607389 CN203012529U (en) | 2012-11-16 | 2012-11-16 | Constant-liquid-level automatic control system based on sewage processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203012529U true CN203012529U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220607389 Expired - Fee Related CN203012529U (en) | 2012-11-16 | 2012-11-16 | Constant-liquid-level automatic control system based on sewage processing |
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| Country | Link |
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| CN (1) | CN203012529U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371470A (en) * | 2015-10-09 | 2016-03-02 | 珠海格力电器股份有限公司 | Air conditioner drainage system and method |
| CN107376456A (en) * | 2017-08-17 | 2017-11-24 | 桑德集团有限公司 | A kind of sewage disposal filtering cloth filtering pool autocontrol method |
-
2012
- 2012-11-16 CN CN 201220607389 patent/CN203012529U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371470A (en) * | 2015-10-09 | 2016-03-02 | 珠海格力电器股份有限公司 | Air conditioner drainage system and method |
| CN107376456A (en) * | 2017-08-17 | 2017-11-24 | 桑德集团有限公司 | A kind of sewage disposal filtering cloth filtering pool autocontrol method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131116 |