CN204646617U - A kind of protective gear of reverse-osmosis treated mesohigh pump - Google Patents
A kind of protective gear of reverse-osmosis treated mesohigh pump Download PDFInfo
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- CN204646617U CN204646617U CN201520366278.0U CN201520366278U CN204646617U CN 204646617 U CN204646617 U CN 204646617U CN 201520366278 U CN201520366278 U CN 201520366278U CN 204646617 U CN204646617 U CN 204646617U
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Abstract
A protective gear for reverse-osmosis treated mesohigh pump, relates to Water Treatment electronic control technology field, refers in particular to a kind of protective gear of chemical water reverse-osmosis treated mesohigh pump.Comprise high-pressure service pump, the feed-water end of high-pressure service pump connects intake pipe, waterexit end connects outlet conduit, intake pipe connects low pressure switch, and outlet conduit connects modulating valve and high-pressure switch, and modulating valve is arranged between high-pressure service pump and high-pressure switch.The utility model ensures that high-pressure service pump does not operate when low pressure, high pressure, can regulate hydraulic pressure, avoids idle running, overload operation, makes high-pressure service pump be able to normal table under certain conditions and runs.
Description
Technical field
The utility model relates to Water Treatment electronic control technology field, refers in particular to a kind of protective gear of chemical water reverse-osmosis treated mesohigh pump.
Background technique
In the processing procedure of chemical water reverse osmosis, high-pressure service pump is a significant components of reverse osmosis water purification machine, and its effect is the water source to RO film conveying certain flow and pressure, should must not ensure and dally in using, can not overload operation for a long time, otherwise will high-pressure service pump be damaged.
So, need to solve the problem, avoid damaging, just must take to protect to high-pressure service pump, make to run under a stable condition, ensure that water treatment normally continues efficient operation.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art; a kind of protective gear of reverse-osmosis treated mesohigh pump is provided; ensure that high-pressure service pump does not operate when low pressure, high pressure; hydraulic pressure can be regulated; avoid idle running, overload operation, make high-pressure service pump be able to normal table under certain conditions and run.
The purpose of this utility model is achieved in that a kind of protective gear of reverse-osmosis treated mesohigh pump; comprise high-pressure service pump; the feed-water end of high-pressure service pump connects intake pipe, waterexit end connects outlet conduit; intake pipe connects low pressure switch; outlet conduit connects modulating valve and high-pressure switch, and modulating valve is arranged between high-pressure service pump and high-pressure switch.
Normal output battle of low pressure switch of the present utility model exports to connect with the normally closed of high-pressure switch and accesses in the control circuit on the spot of high-pressure service pump, protects high-pressure service pump by the contact break-make of low pressure switch, high-pressure switch.Or normal battle of low pressure switch exports with normally closed some output feedack of high-pressure switch in PLC, whether control the operation of high-pressure service pump by PLC, reach protected effect.When pressure is less than the hydrodynamic pressure low value preset, lower pressure switch contact (often making war) disconnects, and when pressure is greater than the hydrodynamic pressure high level preset, high-voltage switch gear contact (normally closed point) disconnects, thus reaches the effect of protection high-pressure service pump.When hydrodynamic pressure is too high or too low; suitably can be regulated by modulating valve, to obtain metastable hydrodynamic pressure, stable operation can play good effect to high-pressure service pump; protect again RO film below and can not be subject to impacting with high pressure, whole operation is able to normal operation.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
As shown in Figure 1; the protective gear of reverse-osmosis treated mesohigh pump; comprise high-pressure service pump 1; the feed-water end of high-pressure service pump 1 connects intake pipe 5; intake pipe 5 connects low pressure switch 2; the waterexit end of high-pressure service pump 1 connects outlet conduit 6, and outlet conduit 6 connects modulating valve 3 and high-pressure switch 4, and modulating valve 3 is arranged between high-pressure service pump 1 and high-pressure switch 4.Suitably can be regulated by modulating valve 3, to obtain metastable hydrodynamic pressure.
When low pressure switch 2 normal make war that exporting is together in series with the normally closed some output of high-pressure switch 4 and access again high-pressure service pump on the spot in running control circuit time; high-pressure service pump 1 is protected by the contact break-make of low pressure switch 2, high-pressure switch 4; when hypotony; the normal battle of low pressure switch 2 is in off state always; when overpressure; the normally closed point of high-pressure switch 4 is in off state, be then disconnected the control circuit of high-pressure service pump, high-pressure service pump 1 will be in halted state.When long-range, can by the signal feed back of low pressure, high pressure to PLC, whether control the operation of high-pressure service pump by PLC, when having low pressure and high-voltage feedback signal, just out of service; And can automatically regulate modulating valve 3 by PLC, reach full-automatic stable operation.Stable operation can play good effect to high-pressure service pump, protect again RO film below and can not be subject to impacting with high pressure, ensure that whole operation is able to normal operation.
Claims (1)
1. the protective gear of a reverse-osmosis treated mesohigh pump; comprise high-pressure service pump; the feed-water end of high-pressure service pump connects intake pipe, waterexit end connects outlet conduit; it is characterized in that: on intake pipe, connect low pressure switch; outlet conduit connects modulating valve and high-pressure switch, and modulating valve is arranged between high-pressure service pump and high-pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366278.0U CN204646617U (en) | 2015-06-01 | 2015-06-01 | A kind of protective gear of reverse-osmosis treated mesohigh pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366278.0U CN204646617U (en) | 2015-06-01 | 2015-06-01 | A kind of protective gear of reverse-osmosis treated mesohigh pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646617U true CN204646617U (en) | 2015-09-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520366278.0U Active CN204646617U (en) | 2015-06-01 | 2015-06-01 | A kind of protective gear of reverse-osmosis treated mesohigh pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204646617U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422667A (en) * | 2017-06-21 | 2017-12-01 | 无锡威奥液压机电设备有限公司 | A kind of low-voltage variation system of sewage-treatment plant |
-
2015
- 2015-06-01 CN CN201520366278.0U patent/CN204646617U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422667A (en) * | 2017-06-21 | 2017-12-01 | 无锡威奥液压机电设备有限公司 | A kind of low-voltage variation system of sewage-treatment plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |