CN2541632Y - Vertical self-sucking pump - Google Patents
Vertical self-sucking pump Download PDFInfo
- Publication number
- CN2541632Y CN2541632Y CN 02220428 CN02220428U CN2541632Y CN 2541632 Y CN2541632 Y CN 2541632Y CN 02220428 CN02220428 CN 02220428 CN 02220428 U CN02220428 U CN 02220428U CN 2541632 Y CN2541632 Y CN 2541632Y
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- CN
- China
- Prior art keywords
- pump
- liquid
- self
- screw bolt
- inlet pipe
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- Expired - Lifetime
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Abstract
A vertical-type self-sucking pump is used in conveying clean liquid or liquid with small quantity of solid particles, and especially in conveying corrosive medium. The utility model comprises a generator arranged on the upper portion, a pump body arranged on the middle portion, and a generator chassis connecting the generator and the pump body. A liquid storage barrel is arranged on the lower portion of the pump body, and a pipette which is arranged in the liquid storage barrel is communicated with the pump cavity of the pump body, then a liquid inlet pipe of the pump which is higher than the horizontal height of the blade in the pump body is connected with the liquid storage barrel, further the liquid inlet pipe of the pump is sequentially provided with an air inlet screw bolt and a water inlet and air outlet screw bolt, and a liquid control air valve is positioned on the liquid outlet end of the pump, wherein the air inlet screw bolt is connected with the liquid control air valve by an air inlet pipe. The utility model has the advantages that the structure is simple, and once filled with water the self-sucking pump is capable of being self-sucked perpetually, further once the self-sucking pump is started water is yielded without self-sucking time. The utility model is applicable to broad fields.
Description
Technical field
The utility model relates to a kind of self-priming pump, and particularly a kind of vertical direct connection self-priming pump is used to carry liquid cleaning or that contain the small amount of solid particle, particularly corrosive medium.
Technical background
Vertical self-sucking pump commonly used has two types, first kind is to adopt gas-liquid mixed formula self-priming mode, promptly be to separate in the gas from liquid through gas-liquid separator again after gas and the liquid mixing earlier, the self-priming pump complex structure of this structure, particularly after shutdown, form siphonage easily, water in the pump chamber is missed, still need irritate liquid drainage when treating to start shooting once more, do not reach the performance of " drainage first; lifelong self-priming " of self-priming pump requirement, though Chinese patent 94242840 disclosed " ventilated type self-priming pump " improves it, set up an electric air control valve, it is with breathing pipe and U type intake pipe UNICOM, after the shutdown, air can enter the intake pipe of water pump by the electric air control valve of opening from breathing pipe, destroy the negative pressure state at intake pipe place, make the enough self-gravitation flow liquids of storage in the pump chamber, thereby realize the performance of " once adding water; lifelong self-priming ", but when the self-priming pump of this kind structure starts owing to exist the gas-liquid separation process, all need a few minutes just can suct liquid after the general start, and along with the increase self-priming time of the self-priming degree of depth also can correspondingly increase, can't reach a start is the purpose of fluid; Second kind is the working principle that adopts the vacuum self-priming; as Chinese patent 94237524 described " easy vertical self-priming seat pump "; it is designed to seal pot type with hydroecium, and pump chamber part is installed in the hydroecium with impeller, just can directly get liquid after filling liquid; need not carry out gas-liquid separation; features simple structure, reliable operation, but there is a fatal weakness in it; be exactly in dead time long after just self-priming once more, must add in hydroecium could self-priming behind some water again.This is because during water pump operation; be in bigger negative pressure state in the inlet pipeline; after the shutdown; water in the pump chamber can be missed a part because of negative-pressure siphon from inlet pipeline; till negative pressure in inlet pipeline disappears; though the water in the hydroecium can all not missed at this moment; but the water level in the hydroecium can descend and be lower than impeller; just can not get liquid when starting shooting again; must in hydroecium, add some liquid again, impeller is immersed in the liquid, just can get liquid during start; therefore the vertical self-sucking pump of this structure can not be shut down oversize; though it is simple in structure, the energy self-priming, and do not need self-priming time; but it can not realize the self-priming pump performance requirement of necessary " once adding water, lifelong self-priming ".
Summary of the invention
The utility model is just in order to overcome the deficiency of above-mentioned technical background, a kind of vertical self-sucking pump is provided, can realize the self-priming pump requirement of necessary " once adding water; lifelong self-priming ", have again regardless of self-priming degree of depth height, a start gets final product fluid, does not need the good characteristics of self-priming time, simple in structure, the reliability height.The utility model belongs to vacuum self priming pump, the main improvement is to set up the air inlet double-screw bolt on the liquid inlet pipe of pump, outlet end at pump is installed the hydraulic control air valve, the air inlet double-screw bolt is connected by a suction tude with the hydraulic control air valve, it specifically is to implement like this: a kind of vertical self-sucking pump, the motor that comprises top, the pump housing at middle part and the motor cabinet that connects both, pump housing bottom is provided with stock solution tube, suction pipe in the stock solution tube is communicated with the pump chamber of the pump housing, it is characterized in that the pump liquid inlet pipe pipeline that is higher than impeller level height in the pump housing connects stock solution tube, be provided with the air inlet double-screw bolt on the pump liquid inlet pipe successively and add water exhaust double-screw bolt, the pump outlet end is equipped with the hydraulic control air valve, is connected with a suction tude between described air inlet double-screw bolt and the hydraulic control air valve.The utility model generally is connected in the pump liquid inlet pipe top of stock solution tube with the elbow pipeline, the also connecting pipeline of available other shape, before start is used, the pump outlet end does not have pressure, the hydraulic control air valve is opening state, be that the pump liquid inlet pipe is communicated with atmosphere by the air inlet double-screw bolt on it, before the start, earlier by adding the water filling in the pump housing and stock solution tube of water exhaust double-screw bolt on the liquid inlet pipe, till filling with, close and add water exhaust double-screw bolt, because the horizontal plane of liquid inlet pipe is higher than impeller horizontal plane in the pump chamber, impeller just is submerged in the water, can get liquid after the start, the interior liquid level of stock solution tube this moment descends, and forms vacuum, water in the pond enters stock solution tube by the feed liquor pipeline under the barometric pressure effect, originally the air in the feed liquor pipeline just is stored in stock solution tube top, and the continuous drain of impeller, the water in the pond just constantly flow into stock solution tube, make the water level in the stock solution tube keep certain height, pump is drain constantly just; Because a start impeller will be got water; the outlet end hydraulic pressure of pump is strengthened; the variation of pressure makes the hydraulic control air valve that is installed in the pump outlet end move; this air valve one cuts out; air inlet double-screw bolt on the pump liquid inlet pipe just can not communicate with atmosphere; the required negative pressure of liquid feeding end in the time of also just can not destroying pump work; after the shutdown, the water in the outlet end pipeline is back in the stock solution tube by the pump housing, and the air on stock solution tube top is just discharged by liquid inlet pipe; up to the whole pump housing; in stock solution tube and the inlet bend once more till the full of liquid; at this moment, impeller is flooded by liquid once more, for start next time lays the foundation; so repeatedly, realize self-priming.After shutdown; the pressure of pump outlet end disappears; the hydraulic control air valve resets; after air valve is opened; the pipeline of pump liquid feeding end is just by the air inlet double-screw bolt; suction tude and hydraulic control air valve communicate with atmosphere, because the negative pressure that produces during pump work disappears immediately, the water in the pump housing just can not pour off because of the negative pressure in the liquid inlet pipe produces siphonage in the liquid inlet pipe; like this; no matter how long have dead time, and impeller is submerged in the water all the time, whenever starts shooting; liquid is got in the capital immediately; and need not in the pump housing, add water for the second time, thereby realized the performance of " once add water, lifelong self-priming; start gets final product water outlet, do not need self-priming time ".
In order to slow down the speed of shutting down aqueous reflux in the drain pipe of back; prevent to flow out through air inlet double-screw bolt, suction tude and air valve because of aqueous reflux makes water too soon; also prevent from simultaneously to make water level be lower than impeller because of aqueous reflux makes water rush out from liquid inlet pipe too soon, the utility model is provided with trimmer valve on liquid inlet pipe.
The utility model also is provided with the tapping double-screw bolt in stock solution tube bottom, so that during the pump maintenance in the emptying pump and the liquid in the stock solution tube.
The utility model has the advantages that simple in structure, really realized the performance of " once adding water; lifelong self-priming " that self-priming pump should have, and having possessed start simultaneously is water outlet, need not the advantage of self-priming time, can be widely used in cleaning or containing the particularly conveying of Korrosionsmedium of liquid of small amount of solid particle.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Embodiment
A kind of vertical self-sucking pump, the motor on top (1) is connected with the pump housing (7) at middle part by motor cabinet (2), stock solution tube (9) is set under the pump housing (7), suction pipe (11) in the stock solution tube (9) is communicated with the pump chamber of the pump housing (7), the pump liquid inlet pipe (12) that is higher than the interior impeller of the pump housing (7) (10) level height is connected the top of stock solution tube (9) by inlet bend (6), the bottom of stock solution tube (9) also is provided with tapping double-screw bolt (8), be provided with air inlet double-screw bolt (3) on the liquid inlet pipe of pump (12) successively, trimmer valve (5) and add water exhaust double-screw bolt (4), the outlet end of pump is equipped with hydraulic control air valve (13), is connected with a suction tude (14) between air inlet double-screw bolt (3) and the hydraulic control air valve (13).
Claims (4)
1. vertical self-sucking pump, comprise the motor on top, the pump housing at middle part and the motor cabinet that connects both, pump housing bottom is provided with stock solution tube, suction pipe in the stock solution tube is communicated with the pump chamber of the pump housing, it is characterized in that the pump liquid inlet pipe pipeline that is higher than impeller level height in the pump housing connects stock solution tube, be provided with air inlet double-screw bolt and add water exhaust double-screw bolt on the pump liquid inlet pipe successively, the pump outlet end is equipped with the hydraulic control air valve, is connected with a suction tude between described air inlet double-screw bolt and the hydraulic control air valve.
2. vertical self-sucking pump according to claim 1 is characterized in that the pump liquid inlet pipe is connected the stock solution tube top with inlet bend.
3. vertical self-sucking pump according to claim 1 and 2, it is characterized in that on the liquid inlet pipe add water exhaust double-screw bolt before be provided with trimmer valve.
4. vertical self-sucking pump according to claim 3 is characterized in that the stock solution tube bottom is provided with the tapping double-screw bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220428 CN2541632Y (en) | 2002-05-01 | 2002-05-01 | Vertical self-sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02220428 CN2541632Y (en) | 2002-05-01 | 2002-05-01 | Vertical self-sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541632Y true CN2541632Y (en) | 2003-03-26 |
Family
ID=33698716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02220428 Expired - Lifetime CN2541632Y (en) | 2002-05-01 | 2002-05-01 | Vertical self-sucking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541632Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032063A (en) * | 2020-08-22 | 2020-12-04 | 安徽江南泵阀集团有限公司 | Self-priming pump capable of filtering sewage strongly by self-priming |
-
2002
- 2002-05-01 CN CN 02220428 patent/CN2541632Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112032063A (en) * | 2020-08-22 | 2020-12-04 | 安徽江南泵阀集团有限公司 | Self-priming pump capable of filtering sewage strongly by self-priming |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120502 Granted publication date: 20030326 |