CN204458375U - Self-priming system of centrifugal pump - Google Patents
Self-priming system of centrifugal pump Download PDFInfo
- Publication number
- CN204458375U CN204458375U CN201420816198.6U CN201420816198U CN204458375U CN 204458375 U CN204458375 U CN 204458375U CN 201420816198 U CN201420816198 U CN 201420816198U CN 204458375 U CN204458375 U CN 204458375U
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- centrifugal pump
- liquid
- vacuum water
- water pot
- pump
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Abstract
The utility model relates to a low liquid level liquid of oil system carries the field, especially a centrifugal pump is from inhaling system, it includes the centrifugal pump, characterized by: the inlet end of the centrifugal pump is connected to the outlet end of the filtering device, the inlet end of the filtering device is connected to the bottom of the vacuum water tank, the top of the vacuum water tank is connected with one end of an inlet pipeline, and the other end of the inlet pipeline extends into the sewage tank; by adopting the centrifugal pump self-priming system, the liquid can be conveyed away without installing a bottom valve on a pipeline of the liquid inlet of the centrifugal pump and without starting the pump to pump the centrifugal pump every time, and the operation is simple and reliable. The liquid leakage caused by untight closing of the bottom valve arranged at the lower part of the liquid inlet of the centrifugal pump and time and labor waste caused by the need of re-filling the pump are reduced.
Description
Technical field
The utility model relates to petroleum system low liquid level liquid transportation art, particularly a kind of centrifugal pump self-suction system.
Background technique
In current crude oil exploitation enterprise, on crude oil transfer station or multi-purpose station, all design 1-2 lower than ground, for the cesspool of sewage in accumulator plant, the sewage in cesspool needs submerged centrifugal pump or ground installation centrifugal pump to be transported in ground large tank or tank car.
Use Under Water Pumps conveying sewage, owing to containing a certain amount of impurity in sewage, easily Under Water Pumps import blocked, simultaneously due to Under Water Pumps maintenance difficult, the centrifugal pump that on-the-spot most all installation grounds fill carries out conveying sewage.Surface-mounted centrifugal pump, when carrying sewage, due to the bottom valve that liquid inlet of centrifugal pump is installed, when termination of pumping, easily blocked by the dirt in sewage, cause the liquid in centrifugal pump head to flow back to when next time opens pump in pond, must pump priming be re-started, waste time and energy.Often occur misoperation, run under not having liquid case in centrifugal pump generation pump head, the situation causing centrifugal pump seal part to damage occurs.
Summary of the invention
The purpose of this utility model is the deficiency overcoming existing centrifugal pump system, provides a kind of simplicity of design, making and installation centrifugal pump self-suction system easily.This system when not pump priming, just can realize centrifugal pump and directly start conveying liquid.
The technological scheme that the utility model solves the employing of its technical problem is: a kind of centrifugal pump self-suction system, it comprises centrifugal pump, it is characterized in that: the entry end of centrifugal pump is connected to the outlet end of filtrating equipment, the entry end of filtrating equipment is connected to the bottom of vacuum water pot, the top of vacuum water pot connects one end of inlet line, and the other end of inlet line extends in cesspool.
Connecting line between described centrifugal pump and filtrating equipment is provided with entrance gate.
The outlet line of described centrifugal pump is provided with out port strobe.
The top of described vacuum water pot is equipped with pressure vacuum gauge.
The top of described vacuum water pot is provided with fluid infusion mouth, and fluid infusion mouth place is provided with moisturizing gate 3.
The bottom water outlet of the entry end of described centrifugal pump, the outlet end of filtrating equipment and vacuum water pot is all in same level line.
Described cesspool locates below ground level, and vacuum water pot is positioned on the ground of cesspool side.
When the beneficial effects of the utility model are the liquid using centrifugal pump conveying liquid level height lower than its liquid entering hole, this centrifugal pump self-suction system is adopted not need, on liquid inlet of centrifugal pump pipeline, bottom valve is installed, do not need to open pump at every turn and pump priming operation is carried out to centrifugal pump yet, just Liquid transfer can be walked, operation is simple and reliable.The bottom valve reduced because of the installation of liquid inlet of centrifugal pump bottom is not closed completely, and causes hydraulic slip, and what need again pump priming operation to cause wastes time and energy.
Accompanying drawing explanation
Below in conjunction with embodiment's accompanying drawing, the utility model is further illustrated.
Fig. 1 is the utility model structural representation;
In figure: 1, inlet line; 2, pressure vacuum gauge; 3, moisturizing gate; 4, vacuum water pot; 5, filtrating equipment; 6, entrance gate; 7, centrifugal pump; 8, port strobe is gone out; 9, outlet line; 10, cesspool.
Embodiment
Embodiment 1
As shown in this centrifugal pump self-suction system structural representation of Fig. 1, it comprises centrifugal pump 7, it is characterized in that: the entry end of centrifugal pump 7 is connected to the outlet end of filtrating equipment 5, the entry end of filtrating equipment 5 is connected to the bottom of vacuum water pot 4, the top of vacuum water pot 4 connects one end of inlet line 1, and the other end of inlet line 1 extends in cesspool 10.
This centrifugal pump self-suction system first time is when using, vacuum water pot 4 and centrifugal pump 7 is needed to fill liquid, then centrifugal pump 7 is started, liquid in pump head and in vacuum water pot 4 is transferred out by pump discharge pipeline 9 by centrifugal pump 7, liquid levels in vacuum water pot 4 starts to decline, form certain degree of vacuum, under atmospheric pressure, liquid in cesspool 10 enters vacuum water pot 4 by the inlet line 1 of vacuum water pot 4, after liquid enters vacuum water pot 4, liquid under gravity, flow to rapidly vacuum water pot 4 bottom, fill because centrifugal pump 7 is by after in vacuum water pot 4, Liquid transfer is walked, the space stayed.
In the inlet line 1 of vacuum water pot 4, liquid under atmospheric pressure, after starting flowing, enters the air in vacuum water pot 4, and under the carrying of conveying liquid, be all transported away by centrifugal pump 7 very soon, centrifugal pump 7 starts normally to carry liquid.After completing first time conveying liquid, when starting centrifugal pump 7, because vacuum water pot 4 liquid entering hole position is in a high position later, vacuum water pot 4 can not flow back to pond, all the time be full of liquid in vacuum water pot 4 and centrifugal pump 7 pump head, without the need to pump priming again, just can complete the object of conveying liquid.
During the liquid using centrifugal pump 7 to carry liquid level height lower than its entry end liquid entering hole, this centrifugal pump self-suction system is adopted not need, on centrifugal pump 7 liquid entering hole pipeline, bottom valve is installed, also do not need to open pump at every turn and carry out pump priming operation to centrifugal pump 7, just Liquid transfer can be walked, operation is simple and reliable.The bottom valve reduced because of the installation of liquid inlet of centrifugal pump bottom is not closed completely, and causes hydraulic slip, and what need again pump priming operation to cause wastes time and energy.
This centrifugal pump self-suction system structure is simple simultaneously, simply transforms existing system, just can realize not pump priming and start the function of centrifugal pump, and of many uses: native system also can need extensive use in low liquid level self-suction system in other industry simultaneously.
Embodiment 2
In the present embodiment, the connecting line between centrifugal pump 7 and filtrating equipment 5 is provided with entrance gate 6, also can be provided with out port strobe 8 on the outlet line 9 of centrifugal pump 7.
Cutting off the liquid entering hole of centrifugal pump 7 in using process by closing entrance gate 6, carrying out the operations such as maintenance conditions, closing out the outlet line 9 that port strobe 8 then can close centrifugal pump 7.
Embodiment 3
In the present embodiment, the top of vacuum water pot 4 is equipped with pressure vacuum gauge 2, and the top of vacuum water pot 4 is put and also can be provided with fluid infusion mouth, and fluid infusion mouth place is provided with moisturizing gate 3.
By the fluid infusion mouth liquid make-up at its top when vacuum water pot 4 uses, guarantee that in using process, in vacuum water pot 4, liquid is in full load condition, guarantee that liquid in cesspool 10 sucks in vacuum water pot 4 by atmospheric pressure after being walked by Liquid transfer in vacuum water pot 4 by centrifugal pump 7, moisturizing gate 3 for controlling the keying of fluid infusion mouth, and guarantees the sealing under fluid infusion mouth closed condition.
The pressure vacuum gauge 2 at vacuum water pot 4 top can real-time monitored vacuum water pot 4 internal pressure situation, avoids underpressure to cause to be depressed in vaccum conduit 4 by liquid in cesspool by barometric pressure.
Embodiment 4
In the present embodiment, the bottom water outlet of the entry end of centrifugal pump 7, the outlet end of filtrating equipment 5 and vacuum water pot 4 is all in same level line.
This setting type does not only need to install bottom valve on centrifugal pump 7 liquid entering hole pipeline, and is more convenient to the running of centrifugal pump 7, improves the treatment effeciency of system.
Embodiment 5
In the present embodiment, cesspool 10 locates below ground level, and vacuum water pot 4 is positioned on the ground of cesspool 10 side.
The filtrating equipment 5 be connected successively with vacuum water pot 4 and centrifugal pump 7 are also all installed on ground, and therefore the maintenance of vacuum water pot 4, filtrating equipment 5 and centrifugal pump 7 is convenient.
Claims (7)
1. a centrifugal pump self-suction system, it comprises centrifugal pump (7), it is characterized in that: the entry end of centrifugal pump (7) is connected to the outlet end of filtrating equipment (5), the entry end of filtrating equipment (5) is connected to the bottom of vacuum water pot (4), the top of vacuum water pot (4) connects one end of inlet line (1), and the other end of inlet line (1) extends in cesspool (10).
2. a kind of centrifugal pump self-suction system according to claim 1, is characterized in that: the connecting line between described centrifugal pump (7) and filtrating equipment (5) is provided with entrance gate (6).
3. a kind of centrifugal pump self-suction system according to claim 1, is characterized in that: the outlet line (9) of described centrifugal pump (7) is provided with out port strobe (8).
4. a kind of centrifugal pump self-suction system according to claim 1, is characterized in that: the top of described vacuum water pot (4) is equipped with pressure vacuum gauge (2).
5. a kind of centrifugal pump self-suction system according to claim 1 or 4, is characterized in that: the top of described vacuum water pot (4) is provided with fluid infusion mouth, and fluid infusion mouth place is provided with moisturizing gate (3).
6. a kind of centrifugal pump self-suction system according to claim 1, is characterized in that: the bottom water outlet of the entry end of described centrifugal pump (7), the outlet end of filtrating equipment (5) and vacuum water pot (4) is all in same level line.
7. a kind of centrifugal pump self-suction system according to claim 1, is characterized in that: described cesspool (10) locates below ground level, and vacuum water pot (4) is positioned on the ground of cesspool (10) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816198.6U CN204458375U (en) | 2014-12-22 | 2014-12-22 | Self-priming system of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816198.6U CN204458375U (en) | 2014-12-22 | 2014-12-22 | Self-priming system of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458375U true CN204458375U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420816198.6U Expired - Fee Related CN204458375U (en) | 2014-12-22 | 2014-12-22 | Self-priming system of centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458375U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895005A (en) * | 2015-12-19 | 2017-06-27 | 曾舟华 | Without bottom valve centrifugal pump is poured water exhaust apparatus and application method |
| CN107034974A (en) * | 2017-04-24 | 2017-08-11 | 四川亦海科机械设备制造有限公司 | A kind of oil gas field waste water of mine conveying device with cleaning and descaling system |
| CN107559213A (en) * | 2017-10-18 | 2018-01-09 | 南京腾图节能科技有限公司 | A kind of remote monitoring centrifugal pump of high height of drawing water |
| CN109667797A (en) * | 2019-01-24 | 2019-04-23 | 福建热心环保科技有限公司 | A kind of equipment for liquid transportation based on vacuum control check valve structure |
| CN109944807A (en) * | 2019-04-30 | 2019-06-28 | 中国五冶集团有限公司 | A slurry pump system provided with a tundish and a method of using the same |
| CN114949702A (en) * | 2022-06-09 | 2022-08-30 | 大唐河北发电有限公司马头热电分公司 | Fire-fighting water curtain spraying system and method for treating liquid ammonia leakage |
-
2014
- 2014-12-22 CN CN201420816198.6U patent/CN204458375U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895005A (en) * | 2015-12-19 | 2017-06-27 | 曾舟华 | Without bottom valve centrifugal pump is poured water exhaust apparatus and application method |
| CN107034974A (en) * | 2017-04-24 | 2017-08-11 | 四川亦海科机械设备制造有限公司 | A kind of oil gas field waste water of mine conveying device with cleaning and descaling system |
| CN107559213A (en) * | 2017-10-18 | 2018-01-09 | 南京腾图节能科技有限公司 | A kind of remote monitoring centrifugal pump of high height of drawing water |
| CN109667797A (en) * | 2019-01-24 | 2019-04-23 | 福建热心环保科技有限公司 | A kind of equipment for liquid transportation based on vacuum control check valve structure |
| CN109944807A (en) * | 2019-04-30 | 2019-06-28 | 中国五冶集团有限公司 | A slurry pump system provided with a tundish and a method of using the same |
| CN114949702A (en) * | 2022-06-09 | 2022-08-30 | 大唐河北发电有限公司马头热电分公司 | Fire-fighting water curtain spraying system and method for treating liquid ammonia leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150708 |