CN2394204Y - Piston metering pump - Google Patents
Piston metering pump Download PDFInfo
- Publication number
- CN2394204Y CN2394204Y CN 99225189 CN99225189U CN2394204Y CN 2394204 Y CN2394204 Y CN 2394204Y CN 99225189 CN99225189 CN 99225189 CN 99225189 U CN99225189 U CN 99225189U CN 2394204 Y CN2394204 Y CN 2394204Y
- Authority
- CN
- China
- Prior art keywords
- pump
- liquid collecting
- collecting ring
- metering
- utility
- 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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Abstract
The utility model relates to a plunger metering pump, which comprises a pump body, a pull rod, sealing filler, calan see vinpocetine and a liquid collecting ring, wherein, the liquid collecting ring is arranged in a filler chamber, and an annular gap on the liquid collecting ring is communicated with the intake of the pump. The metering pump of the utility model enables leaked working media to be circulated in the pump so as to decrease leakage loss, raise metering accuracy, prolong the stable operation time and the service life of the pump and lighten environmental pollution. The plunger metering pump of the utility model can be widely used in accurate metering of various liquids and be especially suitable for liquid metering in a high-pressure system environment.
Description
The utility model is a kind of plunger type metering pump.
In the existing plunger type metering pump, packing seal is generally adopted in the sealing between the pull bar and the pump housing, promptly by blue filler is compressed of card filler is closely contacted with the pull bar surface, forms sealing.From principle or structure, leakage loss has two approach: the one, and the filler seepage; The 2nd, low-pressure area (working environment) leakage outside pump chamber from the pump chamber higher-pressure region along the pull bar surface.The result of leaking makes metering inaccurate on the one hand, loses the material contaminated environment on the other hand.In order to reduce its leakage loss, the filler chamber's length that certainly will will extend to be increasing the quantity of filler, or adds the blue pressure of kilocalorie, to compress filler, it more closely contact with the pull bar surface, and resistance is strengthened, and enhance faster wear, and leakage is aggravated.Therefore, in actual applications, stipulate the leakage rate scope usually, make it neither excessive, can not be too small, thus the purpose that realizes prolonging filler serviceable life and protection pump.However be difficult in practice grasp well, and will check and adjust the leakage rate of pump at any time, increased workload.
The purpose of this utility model is to design a kind of actuating medium round-robin plunger type metering pump in pump that makes seepage, reduces leakage loss, improves metering accuracy, prolongs pump parallel-adder settle-out time and serviceable life, and alleviates environmental pollution.
Plunger type metering pump of the present utility model comprises the pump housing 1, pull bar 2, airtight and watertight padding 3 and Ka Lan 4, also comprises a liquid collecting ring 5, and this liquid collecting ring is installed in the filler chamber, and the annular spaces on the liquid collecting ring is communicated with pump intake.
The utility model is that a liquid collecting ring is set in the filler chamber of original plunger type metering pump, and this liquid collecting ring will be leaked to the actuating medium of filler chamber, lead back the inlet of pump, and circulation in the pump of realizing revealing avoids the actuating medium benefit to go out outside the pump.
Fig. 1 is the diagrammatic cross-section of a kind of embodiment of the present utility model.
Fig. 2 is the diagrammatic cross-section of the employed a kind of liquid collecting ring of the utility model.
Describe structure of the present utility model in detail below in conjunction with accompanying drawing.
The plunger type metering pump of volume pump of the present utility model comprises the pump housing 1, pull bar 2, airtight and watertight padding 3, card orchid 4, and liquid collecting ring 5 and pump intake a and pump discharge b form.Described liquid collecting ring 5 can be a ring, and its external diameter is consistent with the filler chamber internal diameter, railing 2 external diameters consistent (being slidingly matched) of its internal diameter and pump, and the inside and outside edge of liquid collecting ring 5 has a ring-shaped groove respectively, and links up mutually by several perforates radially.
Because the utility model has been installed the liquid collecting ring in filler chamber, and makes effusion lead back pump population by return port, thereby has reduced the leakage loss of actuating medium, has improved metering accuracy, alleviated simultaneously owing to leak the environmental pollution that causes.。Because liquid collecting ring and pump intake link, make plunger often keep lubricating status among often being in the pump intake actuating medium herein, and can cool off plunger and filler, prolonged pump parallel-adder settle-out time and serviceable life.
The new plunger type metering pump of this practicality can be widely used in the accurate metering of various liquid, is specially adapted to the liquid meter of high-pressure system environment.
Claims (4)
1, a kind of plunger type metering pump comprises the pump housing [1], pull bar [2], airtight and watertight padding [3] and card blue [4], it is characterized in that also comprising a liquid collecting ring [5], and this liquid collecting ring is installed in the filler chamber, and the annular spaces on the liquid collecting ring [5] is communicated with pump intake.
2,, it is characterized in that liquid collecting ring [5] is installed in the stage casing of filler chamber according to the plunger type metering pump of claim 1.
3,, it is characterized in that the outer rim groove on the liquid collecting ring [5] is communicated with pump intake by the return port [6] on the pump housing [1] according to the plunger type metering pump of claim 1.
4,, it is characterized in that the outer rim groove on the liquid collecting ring [5] is communicated with pump intake by the outer pipeline of a pump housing according to the plunger type metering pump of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225189 CN2394204Y (en) | 1999-09-29 | 1999-09-29 | Piston metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99225189 CN2394204Y (en) | 1999-09-29 | 1999-09-29 | Piston metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394204Y true CN2394204Y (en) | 2000-08-30 |
Family
ID=34015104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99225189 Expired - Fee Related CN2394204Y (en) | 1999-09-29 | 1999-09-29 | Piston metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394204Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062050A (en) * | 2013-01-10 | 2013-04-24 | 宁波得利时泵业有限公司 | Packing seal device of rotor pump |
| CN104747432A (en) * | 2015-03-31 | 2015-07-01 | 中国石油大学(北京) | Single-plunger metering pump and pump head assembly thereof |
| CN107449479A (en) * | 2017-07-26 | 2017-12-08 | 成都西屋科技发展有限公司 | A kind of contactless pneumatic metering plunger pump |
| CN108278189A (en) * | 2018-03-20 | 2018-07-13 | 浙江力高泵业科技有限公司 | A kind of No leakage plunger type metering pump |
-
1999
- 1999-09-29 CN CN 99225189 patent/CN2394204Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103062050A (en) * | 2013-01-10 | 2013-04-24 | 宁波得利时泵业有限公司 | Packing seal device of rotor pump |
| CN103062050B (en) * | 2013-01-10 | 2016-04-20 | 宁波得利时泵业有限公司 | The stuffing seal of rotor pump |
| CN104747432A (en) * | 2015-03-31 | 2015-07-01 | 中国石油大学(北京) | Single-plunger metering pump and pump head assembly thereof |
| CN107449479A (en) * | 2017-07-26 | 2017-12-08 | 成都西屋科技发展有限公司 | A kind of contactless pneumatic metering plunger pump |
| CN108278189A (en) * | 2018-03-20 | 2018-07-13 | 浙江力高泵业科技有限公司 | A kind of No leakage plunger type metering pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |