CN102465855A - Pulsed reciprocating pump - Google Patents
Pulsed reciprocating pump Download PDFInfo
- Publication number
- CN102465855A CN102465855A CN2010105496077A CN201010549607A CN102465855A CN 102465855 A CN102465855 A CN 102465855A CN 2010105496077 A CN2010105496077 A CN 2010105496077A CN 201010549607 A CN201010549607 A CN 201010549607A CN 102465855 A CN102465855 A CN 102465855A
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- air cavity
- suction
- reciprocating pump
- valve
- pulsed
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Abstract
The invention discloses a pulsed reciprocating pump, belonging to the field of a liquid transmission device. The pulsed reciprocating pump comprises a pump cylinder, a piston, a piston rod, a suction valve and an exhaust valve, wherein the piston is arranged in the pump cylinder; the piston rod extends from one end of the pump cylinder and is connected with a transmission mechanism; the suction valve and the exhaust valve are one-way valves which are arranged on the pump cylinder; an exhaust air cavity is arranged on the pipeline of the exhaust valve; a liquid outlet pipe is arranged at the lower side part of the exhaust air cavity; a suction pipe corresponding to the suction valve is arranged in a suction air cavity; a liquid inlet pipe is arranged on the suction air cavity; an expansion cavity is arranged at the upper part of the suction air cavity; a corrugated pipe is arranged in the expansion cavity; a spring for pushing the corrugated pipe to extend is arranged in the expansion cavity; and the inner cavity of the corrugated pipe is communicated with the suction air cavity. When the pulsed reciprocating pump works, the corrugated pipe contracts and extends to compensate a vibration of a suction pressure so as to ensure that the suction pressure of the reciprocating pump is in a relatively constant state and the reciprocating pump is stably operated. The pulsed reciprocating pump is suitable for single acting.
Description
Technical field
The present invention relates to a kind of fluid delivery system, particularly a kind of reciprocating pump.
Background technique
Reciprocating pump is a kind of pump commonly used in the existing technology, and its critical piece comprises pumping cylinder, piston, piston rod, suction valve and expulsion valve.Piston is arranged in the pumping cylinder, and piston rod stretches out from pumping cylinder one end, links to each other with driving mechanism, and suction valve and expulsion valve are the one-way valve that is arranged on the pumping cylinder; Its working principle: piston forms negative pressure from when a side shifting in the pumping cylinder, liquid is in suction valve gets into pumping cylinder; When piston when opposite side moves, liquid is squeezed in the pumping cylinder, pressure increases, and is discharged by expulsion valve.The principal element that influences the fluctuation of reciprocating pump head pressure is the inertial force of flow; Less for the inertia that guarantees flow, a kind of way is arranged in the existing technology, be that the pipeline of expulsion valve and suction valve correspondence is provided with the discharge air cavity and sucks air cavity, suck on air cavity and the discharge air cavity and all leave the part air; When the reciprocating pump proper functioning, along with the cyclical movement of reciprocating pump, in discharge process, liquid at first is discharged into the discharge air cavity; When head pressure increased, the gas of discharging in the air cavity was compressed, and accommodates a part of liquid; When head pressure reduced, gas expanded, and pressure can slowly be reduced; The principle that sucks air cavity is similar with the principle of discharging air cavity, and this measure can obviously improve the fluctuation of reciprocating pump suction pressure, makes its work more steady; But, suck still having in the air cavity than great fluctuation process, how could reduce the suction fluctuation of reciprocating pump more effectively, make its work more steady, at present, still there are not means further in the art.
Summary of the invention
The purpose of this invention is to provide a kind of pulsed reciprocating pump, make the reciprocating pump can be in when work, the volume that sucks air cavity changes volume with the action of reciprocating pump, keeps the stable of suction pressure, guarantees that pump work is more steady.
The objective of the invention is to realize like this: a kind of pulsed reciprocating pump; Comprise pumping cylinder, piston, piston rod, suction valve and expulsion valve; Said piston is arranged in the pumping cylinder; Piston rod stretches out and links to each other with driving mechanism from pumping cylinder one end, and suction valve and expulsion valve are the one-way valve that is arranged on the pumping cylinder; The pipeline of expulsion valve is provided with the discharge air cavity, is provided with drain pipe at the side lower part of discharging air cavity; The suction pipe that said suction valve is corresponding is arranged on and sucks in the air cavity; Suck air cavity and be provided with liquid inlet pipe, suck air cavity top and be provided with expansion chamber, be provided with bellows in the said expansion chamber; Be provided with the spring of pushing the bellows elongation in the expansion chamber, said bellows inner chamber is connected with the suction air cavity.
When the present invention worked, along with the action of each suction valve, suction pipe sucked liquid from suck air cavity; In sucking air cavity, form negative pressure, suck air cavity, suck in the air cavity and form negative pressure again from the liquid inlet pipe feed liquor; Order about the bellows pressure spring, suck the constant relatively negative pressure of maintenance in the air cavity, after reciprocating pump is accomplished suction action; Spring can restPose, and pushes the bellows elongation, in the working procedure that reciprocating pump is discharged; Suck the still sustainable feed liquor of air cavity, and be that the next feed liquor of multiple pump is got ready.Compared with prior art, the present invention is simple in structure, has guaranteed that the suction pressure of reciprocating pump is in relative constant state, avoids the vibration owing to the feed liquor pipeline that causes of fluctuation, has guaranteed the stationarity of reciprocating pump running.This device is particularly useful for single reciprocating pump.
As further improvement of the present invention, said discharge air cavity becomes the upright cylinder that is provided with barrel-shaped, and the height and the diameter ratio of discharging air cavity are (1.5-1.3): 1.But discharge the drum shape that air cavity can be arranged to pressure-bearing, adopting height and diameter ratio is (1.5-1.3): 1 structure, and can guarantee to discharge the air cavity volume and be unlikely to excessive, simultaneously, have good buffer function again.
As further improvement of the present invention, the bottom angled setting of said suction pipe.During work, negative pressure impels the gas in the liquid to separate out, and when the product gas foot is too much, can from the suction pipe that is obliquely installed, be discharged from, and avoids a large amount of air that suck under flat mouthful situation, causes the fluctuation of suction pressure.
As further improvement of the present invention, said spring is permanent tension spring.This perseverance tension spring can be formed by stacking by the more weak belleville spring of a plurality of elasticity in opposite directions.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1: discharge air cavity, 2: drain pipe, 3: discharge tube, 4: pumping cylinder, 5: suction pipe, 6: liquid inlet pipe, 7: suck air cavity, 8: spring, 9: bellows.
Embodiment
Below in conjunction with accompanying drawing the present invention is elaborated
As shown in Figure 1, be the pulsed reciprocating pump, draw together pumping cylinder 4, piston, piston rod, suction valve and expulsion valve, piston is arranged in the pumping cylinder 4, and piston rod stretches out and links to each other with driving mechanism from pumping cylinder 4 one ends, and suction valve and expulsion valve are the one-way valve that is arranged on the pumping cylinder; The pipeline of expulsion valve is provided with discharges air cavity 1, is provided with drain pipe 2 at the side lower part of discharging air cavity 1, and the suction pipe 5 that suction valve is corresponding is arranged on and sucks in the air cavity 7, and the bottom of suction pipe 5 is provided with the tangent plane of inclination; Suck air cavity 7 and be provided with liquid inlet pipe 6; Suck air cavity 7 tops and be provided with expansion chamber, be provided with bellows 9 in the expansion chamber, be provided with the spring 8 of pushing the bellows elongation in the expansion chamber; This spring 8 can be helical spring, also can be permanent tension spring, the inner chamber of bellows 9 with suck air cavity 7 and be connected; It is barrel-shaped to discharge 1 one-tenths upright cylinder that is provided with of air cavity, and the height and the diameter ratio of discharge air cavity 1 are (1.5-1.3): 1, and be 1.42 to be the best with ratio between two; The discharge tube 3 that expulsion valve is corresponding is connected the bottom of discharging air cavity 1.
Claims (4)
1. a pulsed reciprocating pump is drawn together pumping cylinder, piston, piston rod, suction valve and expulsion valve, and said piston is arranged in the pumping cylinder, and piston rod stretches out and links to each other with driving mechanism from pumping cylinder one end, and suction valve and expulsion valve are the one-way valve that is arranged on the pumping cylinder; The pipeline of expulsion valve is provided with the discharge air cavity, is provided with drain pipe at the side lower part of discharging air cavity; It is characterized in that: the suction pipe that said suction valve is corresponding is arranged on and sucks in the air cavity; Suck air cavity and be provided with liquid inlet pipe; Suck air cavity top and be provided with expansion chamber; Be provided with bellows in the said expansion chamber, be provided with the spring of pushing the bellows elongation in the expansion chamber, said bellows inner chamber is connected with the suction air cavity.
2. a kind of pulsed reciprocating pump according to claim 1 is characterized in that: said discharge air cavity becomes the upright cylinder that is provided with barrel-shaped, and the height and the diameter ratio of discharging air cavity are (1.5-1.3): 1.
3. a kind of pulsed reciprocating pump according to claim 1 and 2 is characterized in that: the bottom of said suction pipe is provided with the tangent plane of inclination.
4. a kind of pulsed reciprocating pump according to claim 1 and 2 is characterized in that: said spring is permanent tension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105496077A CN102465855A (en) | 2010-11-19 | 2010-11-19 | Pulsed reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105496077A CN102465855A (en) | 2010-11-19 | 2010-11-19 | Pulsed reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102465855A true CN102465855A (en) | 2012-05-23 |
Family
ID=46069864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105496077A Pending CN102465855A (en) | 2010-11-19 | 2010-11-19 | Pulsed reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102465855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619151A (en) * | 2013-11-13 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Bellows type pressurization expansion device of airplane liquid cooling system |
| CN108675417A (en) * | 2018-05-13 | 2018-10-19 | 王秀勤 | A kind of working method of the sewage disposal flocculation stirring equipment of rotation disturbance formula |
-
2010
- 2010-11-19 CN CN2010105496077A patent/CN102465855A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619151A (en) * | 2013-11-13 | 2014-03-05 | 中国航空工业集团公司西安飞机设计研究所 | Bellows type pressurization expansion device of airplane liquid cooling system |
| CN103619151B (en) * | 2013-11-13 | 2015-12-09 | 中国航空工业集团公司西安飞机设计研究所 | Aircraft liquid cooling system bellows-type pressuring expansion device |
| CN108675417A (en) * | 2018-05-13 | 2018-10-19 | 王秀勤 | A kind of working method of the sewage disposal flocculation stirring equipment of rotation disturbance formula |
| CN108675417B (en) * | 2018-05-13 | 2021-03-02 | 九江市蓝天碧水环保有限公司 | Working method of rotary disturbance type flocculation stirring equipment for sewage treatment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |