CN204356158U - Changing food waste high-concentration sewage treatment facility - Google Patents
Changing food waste high-concentration sewage treatment facility Download PDFInfo
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- CN204356158U CN204356158U CN201420740339.0U CN201420740339U CN204356158U CN 204356158 U CN204356158 U CN 204356158U CN 201420740339 U CN201420740339 U CN 201420740339U CN 204356158 U CN204356158 U CN 204356158U
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- nanofiltration membrane
- membrane component
- core filter
- pipeline
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Abstract
The utility model relates to a kind of changing food waste high-concentration sewage treatment facility, belongs to water pump control techniques field.Comprise core filter, described core filter is connected with nanofiltration membrane component by pipeline, pipeline between described core filter and nanofiltration membrane component is provided with the first high-pressure pump, circulating water line is connected with between described nanofiltration membrane component feed-water end and water side, the feed-water end of described core filter is provided with electric conductivity detector, described electric conductivity detector is electrically connected with PLC, and described PLC is electrically connected with frequency transformer, and described frequency transformer is electrically connected with the first high-pressure pump.The utility model extends the work-ing life of nano-filtration membrane equipment, alleviates labor strength, eliminates many loaded down with trivial details manual operations, reduces energy consumption.
Description
Technical field
The utility model belongs to water pump control techniques field, is specifically related to a kind of changing food waste high-concentration sewage treatment facility.
Background technology
In external changing food waste composition, major part is food and based on fruit and vegetable, account for 94.8% of total quantity of refuse, condiment accounts for 2.3% of total quantity of refuse, and other impurity accounts for 2.9% of total quantity of refuse, reviews domestic rubbish, its classification is undesirable, domestic changing food waste food accounts for 60 ~ 90% according to statistics, and oil accounts for 4 ~ 17%, also has the different foreign material of other complicated component; Meanwhile, consider the difference of cooking culture, domestic cooking method is more various, abundanter to the use of condiment, and the consumption of oil, salt is more.These differences cause domestic meal kitchen percolate to have supersalinity more abroad, containing features such as greases, prior art adopts biochemistry+membrane process process usually, carries out qualified discharge.In existing NF film (nanofiltration membrane) equipment, original high-pressure pump generally adopts power frequency directly to start, only has a kind of operating frequency, flow, pressure, set when rotating speed dispatches from the factory, cannot change in actual applications, while unlatching high-pressure pump, also need artificial slowly adjusting water outlet valve opening, prevent water hammer or cavitation, manual shift outlet valve aperture, time accurately cannot be supportted and be held, not only increase the labour intensity of workman like this, and have a large amount of waste of energy in the loss of water pump valve resistance, and cannot according to the flow of actual conductivity adjusting high-pressure pump, pressure, a kind of waste for electric energy in actual motion, also there is impact to the life-span of pump and film simultaneously.
Utility model content
The purpose of this utility model is exactly the defect for prior art, provides a kind of changing food waste high-concentration sewage treatment facility.Export by frequency transformer the control that the frequency controlling high-pressure pump realizes water pressure flow, reduce energy consumption and low rate of occurrence of equipment failure, increase work efficiency.
The technical solution adopted in the utility model is: comprise core filter, described core filter is connected with nanofiltration membrane component by pipeline, pipeline between described core filter and nanofiltration membrane component is provided with the first high-pressure pump, circulating water line is connected with between described nanofiltration membrane component feed-water end and water side, the feed-water end of described core filter is provided with electric conductivity detector, described electric conductivity detector is electrically connected with PLC, and described PLC is electrically connected with frequency transformer, and described frequency transformer is electrically connected with the first high-pressure pump.
Preferred structure further, described nanofiltration membrane component comprises the first nanofiltration membrane component and the second nanofiltration membrane component; Pipeline between described core filter and the first nanofiltration membrane component is also provided with the second high-pressure pump; Pipeline between described core filter and the second nanofiltration membrane component is also provided with third high press pump.
Preferred structure further, described circulating water line comprises the first circulating water line and the second circulating water line; Described first circulating water line one end is connected on the pipeline between described core filter and the first nanofiltration membrane component, and the other end is connected on described first nanofiltration membrane component water side; Described second circulating water line one end is connected on the pipeline between described core filter and the second nanofiltration membrane component, and the other end is connected on described second nanofiltration membrane component water side.
Preferred structure further, the pipeline between described core filter and nanofiltration membrane component is provided with vent valve and sampling valve.
Preferred structure further, described circulating water line is provided with exhaust-valve.
After the utility model adopts variable frequency control, the start time of high-pressure pump and stand-by time, can by the pick-up period of frequency transformer and deceleration time parameter arbitrarily arrange, slowly increase and reduction with the pressure flow of guarantee effect in unlatching and when stopping water pump on NF film (nanofiltration membrane) equipment, can not because of pressure, flow suddenlys change, and prevents water hammer or cavitation, cause the damage of NF film (nanofiltration membrane), greatly extend the work-ing life of filtering membrane.
Simultaneously, frequency transformer is utilized to carry out speed governing, manual shift valve is replaced to regulate the method for motor start-up rotating speed, avoid the infringement to high-pressure pump, hidden danger factor, and run under making system be in a kind of power save mode all the time, extend the work-ing life of equipment, better adapt to the needs of production technique.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure, 1-core filter; 2-electric conductivity detector; 3-PLC; 4-frequency transformer; 5-the first high-pressure pump; 6-the second high-pressure pump; 7-third high press pump; 8-vent valve; 9-nanofiltration membrane component; 10-circulating water line; 11-sampling valve; 12-exhaust-valve.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, is convenient to be well understood to the utility model, but they do not form restriction to the utility model.
As shown in Figure 1, the utility model comprises core filter 1, described core filter 1 is connected with nanofiltration membrane component 9 by pipeline, pipeline between described core filter 1 and nanofiltration membrane component 9 is provided with the first high-pressure pump 5, circulating water line 10 is connected with between described nanofiltration membrane component 9 feed-water end and water side, the feed-water end of described core filter 1 is provided with electric conductivity detector 2, described electric conductivity detector 2 is electrically connected with PLC 3, described PLC 3 is electrically connected with frequency transformer 4, and described frequency transformer 4 is electrically connected with the first high-pressure pump 5.
In such scheme, described nanofiltration membrane component 9 comprises the first nanofiltration membrane component 9.1 and the second nanofiltration membrane component 9.2; Pipeline between described core filter 1 and the first nanofiltration membrane component 9.1 is also provided with the second high-pressure pump 6; Pipeline between described core filter 1 and the second nanofiltration membrane component 9.2 is also provided with third high press pump 7.
In such scheme, described circulating water line 10 comprises the first circulating water line 10.1 and the second circulating water line 10.2; Described first circulating water line 10.1 one end is connected on the pipeline between described core filter 1 and the first nanofiltration membrane component 9.1, and the other end is connected on described first nanofiltration membrane component 9.1 water side; Described second circulating water line 10.2 one end is connected on the pipeline between described core filter 1 and the second nanofiltration membrane component 9.2, and the other end is connected on described second nanofiltration membrane component 9.2 water side.
In such scheme, the pipeline between described core filter 1 and nanofiltration membrane component 9 is provided with vent valve 8 and sampling valve 11.Described circulating water line 10 is provided with exhaust-valve 12.
The utility model arranges electric conductivity detector at high-pressure pump feed-water end, the signal (4 ~ 20ma) of the conductivity sensor feedback of electric conductivity detector is passed to PLC program PID arithmetic and is outputed signal the frequency that frequency transformer changes high-pressure pump, namely pressure and the flow of high-pressure pump output is changed, realize closed-loop automatic control very easily, control accuracy is high, improve level of automation and save energy, eliminate many loaded down with trivial details manual operations.
Jerk when high-pressure pump is started and water hammer when shutting down suddenly often easily cause pipeline loosen or break; the serious damage that may cause motor; and during electric motor starting/stopping, needing On/Off valve to reduce the impact of water hammer; operation like this on the one hand working strength is large, and is difficult to the needs meeting technique.Install after frequency transformer in high-pressure pump, can according to the needs of technique, make that motor is soft opens/soft stop, thus jerk and water hammer are resolved.After adopting Frequency Converter Control, to the highest frequency of frequency transformer, upper limiting frequency, lower frequency limit, Acceleration and deceleration time, torque magnification, electronic overcurrent protection, the setting of the correlation parameter such as stall protection and overvoltage protection, to ensure that high-pressure pump motor runs more safely and efficiently.
The content that this specification sheets is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. a changing food waste high-concentration sewage treatment facility, comprise core filter (1), described core filter (1) is connected with nanofiltration membrane component (9) by pipeline, pipeline between described core filter (1) and nanofiltration membrane component (9) is provided with the first high-pressure pump (5), described nanofiltration membrane component (9) is connected with circulating water line (10) between feed-water end and water side, it is characterized in that: the feed-water end of described core filter (1) is provided with electric conductivity detector (2), described electric conductivity detector (2) is electrically connected with PLC (3), described PLC (3) is electrically connected with frequency transformer (4), described frequency transformer (4) is electrically connected with the first high-pressure pump (5).
2. changing food waste high-concentration sewage treatment facility according to claim 1, is characterized in that: described nanofiltration membrane component (9) comprises the first nanofiltration membrane component (9.1) and the second nanofiltration membrane component (9.2); Pipeline between described core filter (1) and the first nanofiltration membrane component (9.1) is also provided with the second high-pressure pump (6); Pipeline between described core filter (1) and the second nanofiltration membrane component (9.2) is also provided with third high press pump (7).
3. changing food waste high-concentration sewage treatment facility according to claim 2, is characterized in that: described circulating water line (10) comprises the first circulating water line (10.1) and the second circulating water line (10.2); Described first circulating water line (10.1) one end is connected on the pipeline between described core filter (1) and the first nanofiltration membrane component (9.1), and the other end is connected on described first nanofiltration membrane component (9.1) water side; Described second circulating water line (10.2) one end is connected on the pipeline between described core filter (1) and the second nanofiltration membrane component (9.2), and the other end is connected on described second nanofiltration membrane component (9.2) water side.
4. changing food waste high-concentration sewage treatment facility according to claim 1, is characterized in that: the pipeline between described core filter (1) and nanofiltration membrane component (9) is provided with vent valve (8) and sampling valve (11).
5. changing food waste high-concentration sewage treatment facility according to claim 1, is characterized in that: described circulating water line (10) is provided with exhaust-valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740339.0U CN204356158U (en) | 2014-11-28 | 2014-11-28 | Changing food waste high-concentration sewage treatment facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420740339.0U CN204356158U (en) | 2014-11-28 | 2014-11-28 | Changing food waste high-concentration sewage treatment facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204356158U true CN204356158U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420740339.0U Active CN204356158U (en) | 2014-11-28 | 2014-11-28 | Changing food waste high-concentration sewage treatment facility |
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| CN (1) | CN204356158U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542150A (en) * | 2018-12-03 | 2019-03-29 | 浙江清华长三角研究院 | A kind of adjusting method of rural domestic sewage treatment facility influent load |
-
2014
- 2014-11-28 CN CN201420740339.0U patent/CN204356158U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542150A (en) * | 2018-12-03 | 2019-03-29 | 浙江清华长三角研究院 | A kind of adjusting method of rural domestic sewage treatment facility influent load |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |