CN206545601U - Low liquid level liquid sucking device - Google Patents
Low liquid level liquid sucking device Download PDFInfo
- Publication number
- CN206545601U CN206545601U CN201621159476.0U CN201621159476U CN206545601U CN 206545601 U CN206545601 U CN 206545601U CN 201621159476 U CN201621159476 U CN 201621159476U CN 206545601 U CN206545601 U CN 206545601U
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- CN
- China
- Prior art keywords
- pump
- liquid
- housing
- enclosure interior
- check valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Low liquid level liquid sucking device provided by the utility model, with housing and pump, one closed space of enclosure interior formation, housing connects feed tube and blower fan respectively, enclosure interior is provided with screen pack and fluid level transmitter, fluid level transmitter distinguishes the frequency converter of connecting fan and pump, in addition, the drain pipe that the liquid of enclosure interior is connected through pump is discharged.The present apparatus is additionally provided with the first check valve, the second check valve, and housing bottom side is additionally provided with sewage draining exit.It is the utility model reasonable in design, practical, pass through being applied in combination for blower fan and pump, utilize the pull of vacuum of blower fan, liquid or scattered liquid is set to enter confined space, and the vacuum cavitations for making blower fan are within the available NPSH less than pump, pump is set to continue normal work, and being capable of withdrawal liquid, in summary, the utility model has reliability height, improves the good effect of operating efficiency.
Description
Technical field
The utility model is related to liquid sucking device technical field, especially belongs to a kind of low liquid level liquid sucking device.
Background technology
It is to use following several ways mostly that low liquid level, which starts pump, in current production and living：
1st, from self priming pump, though self-priming can be realized partly, the requirement to medium and pump is too high；
2nd, install water suction bottom valve additional, fill pump, trivial operations are high to operating personnel and working condition requirement；
3rd, vavuum pump is installed additional, cost is high, and operation difficulty is big.
In summary, in environmental protection, petrochemical industry, because the complicated of liquid (is probably sump oil, sewage, containing miscellaneous
The liquid such as thing residual night, mucus, chemical industry corrosive liquid and emergent leakage liquid)；And possible liquid level is low, liquid level is shallow, and makes liquid can not
Reclaim, or reclaim after can not transport and (can not be transported in other equipment), or re-injection ductwork pressure height can not re-injection (for example
The re-injection at petroleum well workover residual night).
The content of the invention
The purpose of this utility model is to be to provide a kind of low liquid level liquid sucking device, practical, safe and reliable to reach,
Improve the operating efficiency of pump and ensure the successional purpose of work.
Low liquid level liquid sucking device provided by the utility model, with housing and pump, enclosure interior one closed sky of formation
Between, it is characterised in that housing connects feed tube and blower fan respectively, and enclosure interior is provided with screen pack and fluid level transmitter, and liquid level becomes
Device is sent to distinguish the frequency converter of connecting fan and pump, in addition, the drain pipe that the liquid of enclosure interior is connected through pump is discharged.
Further, the drain pipe is provided with the first check valve.
Further, the present apparatus is additionally provided with the second check valve；Second check valve is arranged between housing and drain pipe
Or between housing and feed tube.
Further, housing bottom side is additionally provided with sewage draining exit.
Low liquid level liquid sucking device provided by the utility model, it is reasonable in design, practical, pass through blower fan and pump
It is applied in combination, using the pull of vacuum of blower fan, liquid or scattered liquid is entered confined space, and the vacuum cavitations of blower fan is existed
Within the available NPSH of pump, pump is continued normal work, and can withdrawal liquid, in summary, this practicality
The new good effect with reliability height, raising operating efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment one of the present utility model；
Fig. 2 is the structural representation of embodiment two of the present utility model；
Fig. 3 is the structural representation of embodiment three of the present utility model.
In figure：1st, fluid level transmitter；2nd, feed tube；3rd, screen pack；4th, sewage draining exit；5th, the first check valve；6th, pump；7th, second
Check valve；8th, drain pipe；9th, blower fan.
Embodiment
Low liquid level liquid sucking device provided by the utility model, with housing and pump, enclosure interior one closed sky of formation
Between.Housing connects feed tube 2 and blower fan 9 respectively, and enclosure interior is provided with screen pack 3 and fluid level transmitter 1, fluid level transmitter difference
The frequency converter of connecting fan and pump.Pump 6 can be exported the liquid level signal of the frequency converter of fan and pump, low liquid level by fluid level transmitter
When, revolution speed reduces and discharges and tail off；During high level, revolution speed increases and discharge capacity increases.
In addition, the drain pipe 8 that the liquid of enclosure interior is connected through pump is discharged, the drain pipe is provided with the first check valve 5,
Ensure that negative pressure can be formed in housing in air pump inoperative.Further, between housing as shown in Figure 1 and drain pipe and as schemed
Between housing and feed tube shown in 3, the second check valve 7 is respectively equipped with, by setting the second check valve, makes housing, drain pipe
Identical pressure balance is inside reached, liquid can be because together being risen, so as to effectively prevent due to being negative in housing by Action of Gravity Field
Press and cause the feed tube and drain pipe internal memory gas of pump, and pump air sinuses phenomenon is occurred, the normal work of device has been effectively ensured.
Housing bottom side is additionally provided with sewage draining exit 4.In use, after substantial amounts of debris is by filter screen filtration, after shutdown, leading to
Opening sewage draining exit is crossed, the sewage treatment of enclosure interior is carried out in time.
During Fig. 1 is the structural representation of liquid imbibition and re-injection, the embodiment applied to pressure line fluid leakage, realize
The liquid of leakage is drawn into device case in time, and is directly recycled into pressure line by high pressure pump.
Fig. 2 is the structural representation of liquid imbibition and transhipment, in the embodiment applied to the tank car leakage of transport liquid,
In the case that big quantity of fluid is scattered ground, it is necessary to be recovered on other car, by the present apparatus, the liquid of leakage is drawn into device
In housing, and it is directly transferred on other tank car, and lasting sex work can be realized.
Fig. 3 is the structural representation of low liquid level imbibition and recovery, and being unable to low liquid level applied to most centrifugal pumps starts, and wants
Liquid filling or dress vavuum pump draw in the embodiment of liquid, by the present apparatus, directly imbibition to the entrance of centrifugal pump, can open centrifugal pump
It is dynamic, realize normal work.
Claims (1)
1. low liquid level liquid sucking device, with housing and pump, one closed space of enclosure interior formation, it is characterised in that housing point
Not Lian Jie feed tube and blower fan, enclosure interior is provided with screen pack and fluid level transmitter, fluid level transmitter difference connecting fan and pump
Frequency converter, in addition, the drain pipe that the liquid of enclosure interior is connected through pump is discharged, the drain pipe is provided with the first check valve；
The present apparatus is additionally provided with the second check valve；Second check valve is arranged between housing and drain pipe；Second check valve
It is arranged between housing and feed tube；Housing bottom side is additionally provided with sewage draining exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159476.0U CN206545601U (en) | 2016-11-01 | 2016-11-01 | Low liquid level liquid sucking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159476.0U CN206545601U (en) | 2016-11-01 | 2016-11-01 | Low liquid level liquid sucking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206545601U true CN206545601U (en) | 2017-10-10 |
Family
ID=59992247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159476.0U Expired - Fee Related CN206545601U (en) | 2016-11-01 | 2016-11-01 | Low liquid level liquid sucking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206545601U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667769A (en) * | 2017-10-13 | 2019-04-23 | 吕彦龙 | A kind of liquids recovery and transfer device |
-
2016
- 2016-11-01 CN CN201621159476.0U patent/CN206545601U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667769A (en) * | 2017-10-13 | 2019-04-23 | 吕彦龙 | A kind of liquids recovery and transfer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171010 Termination date: 20211101 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |