CN204921284U - Drain of vacuum vessel - Google Patents
Drain of vacuum vessel Download PDFInfo
- Publication number
- CN204921284U CN204921284U CN201520516767.XU CN201520516767U CN204921284U CN 204921284 U CN204921284 U CN 204921284U CN 201520516767 U CN201520516767 U CN 201520516767U CN 204921284 U CN204921284 U CN 204921284U
- Authority
- CN
- China
- Prior art keywords
- positive displacement
- vacuum vessel
- nozzle
- liquid
- pump
- 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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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model provides a drain of vacuum vessel has the vacuum vessel, vacuum vessel connection positive displacement positive displacement pump, its characterized in that: the fluidic device including blast tube, nozzle, fluid -discharge tube has, the exit linkage nozzle of blast tube, and blast tube and nozzle install are in the fluid -discharge tube entrance, positive displacement positive displacement pump and check valve or back pressure valve be with the pipe connection, and the entry linkage of the backflow pipeline that the pipeline connect out between positive displacement positive displacement pump and check valve or the back pressure valve and the blast tube of fluidic device, the fluid -discharge tube of fluidic device export and the entry linkage of positive displacement positive displacement pump, the fluid -discharge tube of fluidic device is located below the liquid level of vacuum vessel. The utility model discloses when the pump outlet pressure back that risees, carry to the pump intake through the liquid in the supplementary vacuum vessel of jet action, can increase pump inlet line's pressure value, can avoid the condition of positive displacement positive displacement pump flowing back difficulty and unusual noise of appearance under high vacuum environment, also there is certain inhibitory action to the internal leakage of pump.
Description
Technical field
This device relates to the technical field needing to discharge liquid in vacuum vessel, is particularly suitable for isolation of purified industry vacuum tank oil extraction operation.
Background technique
At present in isolation of purified industry, a large amount of employing vacuum technique carries out oil purification operation, and all adopt positive displacement pump as the positive displacement pump of vacuum vessel, under high vacuum (absolute pressure≤1KPa) operating mode, adopt common displacement pump (as gear pump, crescent gear pump) as positive displacement pump, often occur that discharge opeing is not smooth, occur abnormal noise phenomenon, usually adopt for the custom-designed pusher gear pump of this operating mode, pusher crescent gear pump or screw pump in industry.And these dedicated pump prices are 3-4 times of common displacement pump price, and manufacturer quantitative comparison is more less than 1/10.And the dedicated pump of stainless steel, because consumption is few, manufacture difficulty large, nearly all producer does not produce, and pole is hard to buy, and stainless gear pump can have been bought.
Consider from cost and versatility, common positive displacement pump preferably can be adopted as positive displacement pump, also can solve overcurrent material needs the vacuum cleaning installation of stainless steel cannot configure the problem of stainless steel oil drain pump, fills a hole in the market, but the discharge opeing problem proposed before need solving.
Model utility content
The utility model provides a kind of pumping equipment of vacuum vessel, its objective is the shortcoming solving prior art and exist, and to make under high vacuum operating mode discharge opeing from vacuum vessel smooth and easy, has no abnormal sound.
The utility model solves the technological scheme that its technical problem adopts:
A kind of pumping equipment of vacuum vessel, have vacuum vessel, vacuum vessel connects positive displacement positive displacement pump, it is characterized in that: have the fluidic device comprising nozzle pipe, nozzle, liquid-discharging tube, the outlet of nozzle pipe connects nozzle, and nozzle pipe and nozzle are arranged on liquid-discharging tube ingress; Positive displacement positive displacement pump is connected with pipeline with one-way valve or back pressure valve, the reflux line that positive displacement positive displacement pump and the pipeline between one-way valve or back pressure valve pick out is connected with the entrance of the nozzle pipe of fluidic device, and the liquid-discharging tube outlet of fluidic device is connected with the entrance of positive displacement positive displacement pump; The liquid-discharging tube of fluidic device is positioned at below the liquid level of vacuum vessel.
Reflux line is provided with flow control valve.
Part below the liquid level that liquid-discharging tube is positioned at vacuum vessel is provided with some through holes, and the through hole gross area is greater than the cross-sectional flow area of liquid-discharging tube.
Entrance one end of liquid-discharging tube is welded with flange, and flange is connected with fastening piece with the anti-flange of reducing; The anti-flange of reducing welds with entrance one end of nozzle pipe, and liquid-discharging tube is stretched in the outlet of nozzle pipe, and the exit end of nozzle pipe is welded with nozzle carrier, and nozzle carrier is provided with nozzle, and entrance one end of nozzle pipe is welded with reflux line.
Usefulness of the present utility model is:
The utility model is after pump discharge pressure raises, carried to pump intake by the liquid in jet action assisted vacuum container, the force value of pump intake pipeline can be increased, positive displacement positive displacement pump discharge opeing difficulty and the situation occurring abnormal sound under high vacuum environment can be avoided, also have certain inhibitory action to the internal leakage of pump.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model stereogram;
Fig. 2 is the utility model structural representation;
Fig. 3 is the utility model system schematic;
Fig. 4 is the utility model fluidic device structural drawing.
Embodiment
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the utility model has vacuum vessel 1, and vacuum vessel 1 connects positive displacement positive displacement pump 2.
Fluidic device 3 comprises nozzle pipe 31, nozzle 33, liquid-discharging tube 32, and the outlet of nozzle pipe 31 connects nozzle 33, and nozzle pipe 31 and nozzle 33 are arranged on liquid-discharging tube 32 ingress.
Export normal configuration pressure gauge 7 at positive displacement positive displacement pump 2, positive displacement positive displacement pump 2 is connected with pipeline with one-way valve 4, can connect other apparatus, to meet the technological requirement of whole equipment or system after the utility model one-way valve 4.
The reflux line 5 that pipeline between positive displacement positive displacement pump 2 with one-way valve 4 picks out is connected with the entrance of the nozzle pipe 31 of fluidic device 3, and as the medium sources of fluidic device 3, the outlet of the liquid-discharging tube 32 of fluidic device 3 is connected with the entrance of positive displacement positive displacement pump 2; The liquid-discharging tube 32 of fluidic device 3 is positioned at below the liquid level of vacuum vessel 1.
Reflux line 5 is provided with stop valve 6 as flow control valve.The flow-rate ratio that the adjustable one-way valve 4 of the stop valve 6 that reflux line 5 is installed consumes with fluidic device 3, to be adjusted to the operating mode that needed for energy normal drainage, consumed flow is less.
As optimized project, back pressure valve can be adopted to substitute one-way valve, and the utility model effect is better.When the back pressure that equipment Pipe-Line produces after back pressure valve is lower than back pressure valve setting value, if when the stop valve 6 in reflux line 5 is fixed on certain aperture, the consumed flow produced can be basicly stable, and namely equipment draining flow is basicly stable.
As shown in Figure 2, Figure 4 shows, fluidic device 3 structure of the present utility model is: liquid-discharging tube 32 is through below liquid levels in vacuum vessel 1, weld together with vacuum vessel 1, the part of liquid-discharging tube 32 in vacuum vessel 1, there are groove milling or the boring of some through hole 30 forms, and groove milling or the boring gross area are greater than the cross-sectional flow area of liquid-discharging tube 32, so that the liquid in vacuum vessel 1 enters.Flange 35 welds with entrance one end of liquid-discharging tube 32, and flange 35 is connected by supporting Sealing 37, fastening piece 38 with the anti-flange of reducing 36.The exit end of liquid-discharging tube 32 is connected with positive displacement positive displacement pump 2.The anti-flange 36 of reducing welds with entrance one end of nozzle pipe 31, and liquid-discharging tube 32 is stretched in the outlet of nozzle pipe 31, and the exit end of nozzle pipe 31 welds with nozzle carrier 34, and entrance one end of nozzle pipe 31 is welded with reflux line 5.Nozzle 33 is arranged on nozzle carrier 34 by available Sealing.
This kind of design can facilitate the examine and replace of nozzle 33.As optimized project, liquid-discharging tube 32 latus rectum is greater than positive displacement positive displacement pump 2 entrance latus rectum, needs to consider that the bolt not affecting row's positive displacement positive displacement pump 2 entrance is installed simultaneously.
According to actual drainage effect difference, exporting at liquid-discharging tube 32 can as after Fig. 3 connects liquid jetting device diffusing tube 39, liquid jetting device diffusing tube 39 is connected with the entrance of positive displacement positive displacement pump 2 again, and liquid-discharging tube 32 exports and also can not connect liquid jetting device diffusing tube 39 and directly be connected with the entrance of positive displacement positive displacement pump 2.
The utility model before one-way valve 4, by reflux line 5, liquid is drawn a part be used for fluidic device 3, fluidic device 3 is arranged on below the liquid level of in vacuum vessel 1, and point to the entrance of positive displacement positive displacement pump 2, after positive displacement positive displacement pump 2 outlet pressure raises, carried to positive displacement positive displacement pump 2 entrance by the liquid in jet action assisted vacuum container 1, can the force value of enlarging volume formula positive displacement pump 2 entrance, positive displacement positive displacement pump 2 discharge opeing difficulty and the situation occurring abnormal sound under high vacuum environment can be avoided, also certain inhibitory action is had to the internal leakage of positive displacement positive displacement pump 2.
Claims (4)
1. the pumping equipment of a vacuum vessel, have vacuum vessel, vacuum vessel connects positive displacement positive displacement pump, it is characterized in that: have the fluidic device comprising nozzle pipe, nozzle, liquid-discharging tube, the outlet of nozzle pipe connects nozzle, and nozzle pipe and nozzle are arranged on liquid-discharging tube ingress; Positive displacement positive displacement pump is connected with pipeline with one-way valve or back pressure valve, the reflux line that positive displacement positive displacement pump and the pipeline between one-way valve or back pressure valve pick out is connected with the entrance of the nozzle pipe of fluidic device, and the liquid-discharging tube outlet of fluidic device is connected with the entrance of positive displacement positive displacement pump; The liquid-discharging tube of fluidic device is positioned at below the liquid level of vacuum vessel.
2. the pumping equipment of a kind of vacuum vessel as claimed in claim 1, is characterized in that: on reflux line, be provided with flow control valve.
3. the pumping equipment of a kind of vacuum vessel as claimed in claim 1, is characterized in that: the part below the liquid level that liquid-discharging tube is positioned at vacuum vessel is provided with some through holes, and the through hole gross area is greater than the cross-sectional flow area of liquid-discharging tube.
4. the pumping equipment of a kind of vacuum vessel as claimed in claim 1, is characterized in that: entrance one end of liquid-discharging tube is welded with flange, and flange is connected with fastening piece with the anti-flange of reducing; The anti-flange of reducing welds with entrance one end of nozzle pipe, and liquid-discharging tube is stretched in the outlet of nozzle pipe, and the exit end of nozzle pipe is welded with nozzle carrier, and nozzle carrier is provided with nozzle, and entrance one end of nozzle pipe is welded with reflux line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516767.XU CN204921284U (en) | 2015-07-16 | 2015-07-16 | Drain of vacuum vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520516767.XU CN204921284U (en) | 2015-07-16 | 2015-07-16 | Drain of vacuum vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921284U true CN204921284U (en) | 2015-12-30 |
Family
ID=54970418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520516767.XU Expired - Fee Related CN204921284U (en) | 2015-07-16 | 2015-07-16 | Drain of vacuum vessel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921284U (en) |
-
2015
- 2015-07-16 CN CN201520516767.XU patent/CN204921284U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20171017 Granted publication date: 20151230 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20191017 Granted publication date: 20151230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20180716 |