CN201013608Y - Centrifugal pump liquid feeding system - Google Patents
Centrifugal pump liquid feeding system Download PDFInfo
- Publication number
- CN201013608Y CN201013608Y CNU2007200835302U CN200720083530U CN201013608Y CN 201013608 Y CN201013608 Y CN 201013608Y CN U2007200835302 U CNU2007200835302 U CN U2007200835302U CN 200720083530 U CN200720083530 U CN 200720083530U CN 201013608 Y CN201013608 Y CN 201013608Y
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- liquid
- centrifugal pump
- liquid level
- unicom
- inlet pipe
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Abstract
The utility model relates to a liquid supply system of centrifugal pump, which includes a centrifugal pump (2), a liquid inlet tube (1), a liquid outlet tube (5), a return tube (1). One end of the liquid inlet tube (1) is communicated with the end of liquid inlet end of the centrifugal pump (2); the other end is inserted below the liquid surface of low level liquid source; one end of the liquid outlet tube (5) is communicated with the liquid outlet end of the centrifugal pump (2); the other end is communicated with the top of high level Liquid pool (8); one end of the return tube (10) is communicated with the bottom of the high level liquid pool (8); The other end is communicated with the liquid outlet end of the centrifugal pump (2). The returning tube of the liquid supply system of the centrifugal pump of the utility model can automatically supplement liquid in a high liquid level liquid pool into the liquid inlet tube and the centrifugal pump, which is no need for liquid supplementing operation. In addition, since only small amount leakage occurs at the packing and the bottom valve of water inlet tube of the centrifugal pump, the lost liquid in the high-level liquid pool may not be too much.
Description
Technical field
The utility model relates to from the liquid-supplying system, particularly centrifugal pump liquid-supplying system of low liquid level liquid source to high liquid level liquid pool feed flow.
Background technique
The centrifugal pump liquid-supplying system is the liquid-supplying system that is interrupted feed flow by centrifugal pump from low liquid level liquid source (as the water source) to high liquid level liquid pool (as water tank).As shown in Figure 3, traditional centrifugal pump liquid-supplying system comprises centrifugal pump 2, liquid inlet pipe 1, drain pipe 3.The mounting point of centrifugal pump 2 is higher than low liquid level liquid source.One end of liquid inlet pipe 1 and the liquid feeding end UNICOM of centrifugal pump 2, the other end is inserted into liquid level below, low liquid level liquid source; The liquid inlet pipe 1 of liquid level below, low liquid level liquid source is provided with bottom valve 11; Bottom valve 11 is for only allowing liquid from the one-way valve of low liquid level liquid source and course to centrifugal pump 2; One end of drain pipe 5 and centrifugal pump 2 outlet end UNICOMs, the top UNICOM of the other end and high liquid level liquid pool 8.
Traditional centrifugal pump liquid-supplying system, stop in centrifugal pump 2 time of feed flow, because centrifugal pump packing place and intake pipe bottom valve 11 have minor leakage, the liquid in liquid inlet pipe 1 and the centrifugal pump 2 can run off, and the liquid that is in low liquid level can not be full of the impeller cavity in liquid inlet pipe 1 and the centrifugal pump 2 automatically, so, before restarting centrifugal pump 2, the liquid make-up operation must be carried out at every turn, promptly liquid inlet pipe bottom valve 11 must be sealed, allow liquid be full of liquid inlet pipe and impeller cavity, restart centrifugal pump 2.
For overcoming the defective that traditional centrifugal pump liquid-supplying system exists, CN2186809 discloses a kind of " centrifugal pump negative pressure starter ", this device has been installed the container of a band bleed valve on centrifugal pump liquid feeding end pipeline, when centrifugal pump stops feed flow, liquid in the container can make the interior full of liquid of the impeller cavity in liquid inlet pipe 1 and the centrifugal pump 2, thereby solve the problem that the centrifugal pump negative pressure starts, but, make this system still can not realize restarting the preceding automatic supplementing liquid operation of centrifugal pump fully because the liquid in the container can't replenish automatically at every turn.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of centrifugal pump liquid-supplying system is provided, and this system need not carry out the liquid make-up operation at every turn before restarting centrifugal pump.
The utility model solves the problems of the technologies described above the technological scheme that is adopted:
A kind of centrifugal pump liquid-supplying system, it comprises centrifugal pump, liquid inlet pipe, drain pipe;
One end of liquid inlet pipe and the liquid feeding end UNICOM of centrifugal pump, the other end is inserted into liquid level below, low liquid level liquid source; The liquid inlet pipe of liquid level below, low liquid level liquid source is provided with bottom valve; Bottom valve is for only allowing liquid from the one-way valve of low liquid level liquid source and course to centrifugal pump;
One end of drain pipe and centrifugal pump outlet end UNICOM, the top UNICOM of the other end and high liquid level liquid pool;
System also comprises a reflow pipe, an end of reflow pipe and the bottom UNICOM of high liquid level liquid pool, the other end and centrifugal pump outlet end UNICOM.
In the such scheme, reflow pipe is provided with safety check, and safety check is for only to allow liquid to flow to the one-way valve of centrifugal pump from high liquid level liquid pool.
In the such scheme, system also comprises a seal container, and an end of liquid inlet pipe is by the liquid feeding end UNICOM of seal container and centrifugal pump, the bottom UNICOM of the liquid feeding end of centrifugal pump and seal container, the top UNICOM of liquid inlet pipe and seal container; Liquid level height in the seal container is higher than the height of the impeller cavity in liquid inlet pipe and the centrifugal pump.
In the such scheme, the top of seal container is provided with valve air relief.
In the such scheme, the caliber of reflow pipe is less than the caliber of drain pipe.
Compared with prior art, the utility model system has the following advantages:
1, system comprises a reflow pipe, an end of reflow pipe and the bottom UNICOM of high liquid level liquid pool, the other end and centrifugal pump outlet end UNICOM.Reflow pipe can add to the liquid in the high liquid level liquid pool in liquid inlet pipe and the centrifugal pump automatically, therefore, restart centrifugal pump at every turn before, need not carry out liquid make-up operation.In addition, because centrifugal pump packing place and intake pipe bottom valve only have minor leakage, the liquid that can not that high liquid level liquid pool runs off is too many.
2, reflow pipe is provided with safety check, and safety check is for only to allow liquid to flow to the one-way valve of centrifugal pump from high liquid level liquid pool.In the time of can preventing centrifugal pump work, liquid enters high liquid level liquid pool from reflow pipe.
3, system also comprises a seal container, and the liquid level height in the seal container is higher than the height of the impeller cavity in liquid inlet pipe and the centrifugal pump, helps keeping full of liquid in liquid inlet pipe and the centrifugal pump.
4, the top of seal container is provided with bleed valve, exits when can the air in seal container reaching a certain amount of.
5, because centrifugal pump packing place and intake pipe bottom valve only have minor leakage, the caliber of reflow pipe is less than the caliber of drain pipe.
The utility model system can utilize Ordinary Centrifugal Pumps, and by increasing the mode of reflow pipe pipeline, liquid make-up in trend liquid inlet pipe and centrifugal pump is for condition has been created in the automatic startup of system's unmanned and centrifugal pump.
The utility model centrifugal pump liquid-supplying system is simple in structure, cheap, easy for installation, reliable performance, greatly reduce working strength, be particularly suitable for Ordinary Centrifugal Pumps from the river, low level water sources such as pool, pond, well are to elevated tank (pond) automatic water-supply, the remote automatic-taking-water system that can be used as the electrolytic manganese industry uses.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation
Fig. 2 is the utility model embodiment 2 a structural representation
Fig. 3 be traditional centrifugal pump liquid-supplying system structural representation
Embodiment
The utility model centrifugal pump liquid-supplying system embodiment 1 as shown in Figure 1, but it is the automatically actuated centrifugal pump liquid-supplying system of unmanned and centrifugal pump.It comprises centrifugal pump 2, liquid inlet pipe 1, drain pipe 5; One end of liquid inlet pipe 1 and the liquid feeding end UNICOM of centrifugal pump 2, the other end is inserted into liquid level below, low liquid level liquid source; The liquid inlet pipe 1 of liquid level below, low liquid level liquid source is provided with bottom valve 11; Bottom valve 11 is for only allowing liquid from the one-way valve of low liquid level liquid source and course to centrifugal pump 2.One end of drain pipe 5 and centrifugal pump 2 outlet end UNICOMs, the top UNICOM of the other end and high liquid level liquid pool 8.
System also comprises the reflow pipe 10 with safety check 6, an end of reflow pipe 10 and the bottom UNICOM of high liquid level liquid pool 8, the other end and centrifugal pump 2 outlet end UNICOMs; Safety check 6 is for only to allow liquid to flow to the one-way valve of centrifugal pump 2 from high liquid level liquid pool 8.The caliber of reflow pipe 10 is significantly smaller than the caliber of drain pipe 5.
System also comprises a seal container 3, and an end of liquid inlet pipe 1 is by the liquid feeding end UNICOM of seal container 3 with centrifugal pump 2, the bottom UNICOM of the liquid feeding end of centrifugal pump 2 and seal container 3, the top UNICOM of liquid inlet pipe 1 and seal container 3.Liquid level height in the seal container 3 is higher than the height of the impeller cavity in liquid inlet pipe 1 and the centrifugal pump 2.The top of seal container 3 is provided with bleed valve 4.
System also comprise centrifugal pump controller 9, be arranged on the liquid-level switch 7 in the high liquid level liquid pool 8.The output terminal of liquid-level switch 7 is connected with controller 9, and controller 9 is according to the work of the liquid level information control centrifugal pump 2 in the high liquid level liquid pool 8.
The utility model centrifugal pump liquid-supplying system embodiment 2 as shown in Figure 2, it comprises centrifugal pump 2, liquid inlet pipe 1, drain pipe 5; One end of liquid inlet pipe 1 and the liquid feeding end UNICOM of centrifugal pump 2, the other end is inserted into liquid level below, low liquid level liquid source; The liquid inlet pipe 1 of liquid level below, low liquid level liquid source is provided with bottom valve 11; Bottom valve 11 is for only allowing liquid from the one-way valve of low liquid level liquid source and course to centrifugal pump 2.One end of drain pipe 5 and centrifugal pump 2 outlet end UNICOMs, the top UNICOM of the other end and high liquid level liquid pool 8.
System also comprises reflow pipe 10, an end of reflow pipe 10 and the bottom UNICOM of high liquid level liquid pool 8, the other end and centrifugal pump 2 outlet end UNICOMs.
Claims (5)
1. centrifugal pump liquid-supplying system, it comprises centrifugal pump (2), liquid inlet pipe (1), drain pipe (5);
The liquid feeding end UNICOM of one end of liquid inlet pipe (1) and centrifugal pump (2), the other end is inserted into liquid level below, low liquid level liquid source; The liquid inlet pipe (1) of liquid level below, low liquid level liquid source is provided with bottom valve (11); Bottom valve (11) is for only allowing liquid from the one-way valve of low liquid level liquid source and course to centrifugal pump (2);
One end of drain pipe (5) and centrifugal pump (2) outlet end UNICOM, the top UNICOM of the other end and high liquid level liquid pool (8);
It is characterized in that: system also comprises a reflow pipe (10), the bottom UNICOM of an end of reflow pipe (10) and high liquid level liquid pool (8), the other end and centrifugal pump (2) outlet end UNICOM.
2. liquid-supplying system as claimed in claim 1 is characterized in that: reflow pipe (10) is provided with safety check (6), and safety check (6) is for only to allow liquid to flow to the one-way valve of centrifugal pump (2) from high liquid level liquid pool (8).
3. liquid-supplying system as claimed in claim 1, it is characterized in that: it also comprises a seal container (3), one end of liquid inlet pipe (1) is by the liquid feeding end UNICOM of seal container (3) with centrifugal pump (2), the bottom UNICOM of the liquid feeding end of centrifugal pump (2) and seal container (3), the top UNICOM of liquid inlet pipe (1) and seal container (3); Liquid level height in the seal container (3) is higher than the height of the impeller cavity in liquid inlet pipe (1) and the centrifugal pump (2).
4. liquid-supplying system as claimed in claim 3 is characterized in that: the top of seal container (3) is provided with valve air relief (4).
5. liquid-supplying system as claimed in claim 1 is characterized in that: the caliber of reflow pipe (10) is less than the caliber of drain pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200835302U CN201013608Y (en) | 2007-02-12 | 2007-02-12 | Centrifugal pump liquid feeding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200835302U CN201013608Y (en) | 2007-02-12 | 2007-02-12 | Centrifugal pump liquid feeding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201013608Y true CN201013608Y (en) | 2008-01-30 |
Family
ID=39025396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200835302U Expired - Fee Related CN201013608Y (en) | 2007-02-12 | 2007-02-12 | Centrifugal pump liquid feeding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201013608Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277315A (en) * | 2013-06-20 | 2013-09-04 | 长沙山水节能研究院有限公司 | Vacuumizing system and vacuumizing method |
-
2007
- 2007-02-12 CN CNU2007200835302U patent/CN201013608Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277315A (en) * | 2013-06-20 | 2013-09-04 | 长沙山水节能研究院有限公司 | Vacuumizing system and vacuumizing method |
| CN103277315B (en) * | 2013-06-20 | 2015-10-21 | 长沙山水节能研究院有限公司 | Pumped vacuum systems and vacuum pumping method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20100212 |