CN2787877Y - Leakless polymer injection pump - Google Patents
Leakless polymer injection pump Download PDFInfo
- Publication number
- CN2787877Y CN2787877Y CN 200520090300 CN200520090300U CN2787877Y CN 2787877 Y CN2787877 Y CN 2787877Y CN 200520090300 CN200520090300 CN 200520090300 CN 200520090300 U CN200520090300 U CN 200520090300U CN 2787877 Y CN2787877 Y CN 2787877Y
- Authority
- CN
- China
- Prior art keywords
- pump
- chamber
- stuffing box
- box packing
- leakage
- 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
Links
Abstract
The utility model relates to a no-leakage injection pump, which comprises an inlet valve group, an outlet valve group, a plunger, and a sealed packing box, wherein the sealed packing box filled with sealing packing is provided with a reflux chamber which is communicated with a working chamber of a pump through a reflux pipe and a one-way valve. Leaked liquid is collected and then conveyed to the working chamber of the pump by the reflux chamber, therefore no leakage is realized. The utility model is characterized in that the pump runs stably, and has good sealing effect and no leakage; raw material which is conveyed can not run off; environment can not polluted, and money is saved; besides, the maintenance frequency of the pump is reduced.
Description
Technical field the utility model relates to a kind of pump, particularly a kind of polymer-injecting pump of plunger reciprocatory motion.
Background technique is used for the polymer-injecting pump to underground conveying polyacrylamide solution, its sealing is to realize by the soft packing in the stuffing box packing case, because the plunger of pump is reciprocating, in running, liquid can enter in the stuffing box packing case, and its internal pressure can be changed, cause leaking, sealing effect is bad, has both influenced the efficient of pump, and the liquid of leakage also pollutes the environment and the loss of polyacrylamide solution.
The summary of the invention the purpose of this utility model is to provide a kind of nothing of good sealing effect to leak polymer-injecting pump.
The purpose of this utility model is achieved in that a kind of nothing leakage polymer-injecting pump, comprise suction valve group, expulsion valve group, plunger, stuffing box packing case, it is characterized in that being provided with refluxing chamber in the stuffing box packing case of built-in stuffing box packing, refluxing chamber is connected with the active chamber of pump by reflow pipe, one-way valve.In the described stuffing box packing case main seal cavity, refluxing chamber and auxiliary seal cavity are set, refluxing chamber is located between the major and minor Seal cage, is provided with stuffing box packing in the major and minor Seal cage.
The utility model is to be provided with a refluxing chamber at the middle part of existing stuffing box packing case, the both sides in chamber are established the major and minor Seal cage of stuffing box packing in being, when liquid enters main seal cavity, operation with plunger constantly spreads outward in the refluxing chamber, refluxing chamber is collected the liquid of revealing, pump in suction process in its active chamber pressure instantaneous variation can take place, promptly form negative pressure, make the active chamber of connection pump and the one-way valve opens of refluxing chamber, the liquid in the refluxing chamber is delivered in the active chamber through reflow pipe, one-way valve.Owing in the auxiliary seal cavity that the liquid that can not of revealing is diffused into, realized that therefore the nothing of pump is leaked.
Characteristics of the present utility model are: pump safe and reliable to operation, and good sealing effect has been realized not having and has been leaked, and the raw material of conveying can not run off, and is both free from environmental pollution, economizes on the use of funds again, also reduced the maintenance frequency of pump, remarkable in economical benefits.
Description of drawings Fig. 1 is a structural representation of the present utility model.
Embodiment is done further auspicious stating below in conjunction with accompanying drawing to the utility model:
As shown in Figure 1, (1) is provided with expulsion valve group (10) and suction valve group (9) in the pump housing of polymer-injecting pump, and two valve groups are formed by valve seat (13), valve (14), spring (15), spring capping (16).The pump housing one side is connected with the stuffing box packing case, and its junction is provided with seal ring (2).Be provided with lining (11) between the plunger (5) and the pump housing and the stuffing box packing case (6), the middle part of stuffing box packing case is provided with annular refluxing chamber (7), it is divided into main seal cavity (3) and auxiliary seal cavity (4) with the stuffing box packing case, be provided with soft packing in two Seal cages, refluxing chamber is connected with the active chamber of pump by reflow pipe (12) and the one-way valve (8) that is arranged on the pump housing.Other structure of pump is all identical with prior art, repeats no more.
Claims (2)
1, a kind of nothing is leaked polymer-injecting pump, comprises suction valve group, expulsion valve group, plunger, stuffing box packing case, it is characterized in that being provided with refluxing chamber in the stuffing box packing case of built-in stuffing box packing, and refluxing chamber is connected with the active chamber of pump by reflow pipe, one-way valve.
2, nothing according to claim 1 is leaked polymer-injecting pump, it is characterized in that in the described stuffing box packing case main seal cavity, refluxing chamber and auxiliary seal cavity being set, and refluxing chamber is located between the major and minor Seal cage, is provided with stuffing box packing in the major and minor Seal cage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090300 CN2787877Y (en) | 2005-04-15 | 2005-04-15 | Leakless polymer injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520090300 CN2787877Y (en) | 2005-04-15 | 2005-04-15 | Leakless polymer injection pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2787877Y true CN2787877Y (en) | 2006-06-14 |
Family
ID=36786172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520090300 Expired - Fee Related CN2787877Y (en) | 2005-04-15 | 2005-04-15 | Leakless polymer injection pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2787877Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430500A (en) * | 2010-09-08 | 2012-05-02 | 塔工程有限公司 | Apparatus for preventing leakage liquid crystal from dropping on a pannel or stage in lc dispenser |
| WO2013028729A1 (en) * | 2011-08-22 | 2013-02-28 | Cummins Emission Solutions Inc. | Urea solution pumps having leakage bypass |
| 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 |
| CN103628838A (en) * | 2013-11-24 | 2014-03-12 | 刘文化 | Sealing technology for packing box of oil pumping unit |
| CN103925185A (en) * | 2014-04-29 | 2014-07-16 | 博山水泵制造厂 | Plunger pump and carbon dioxide injection device for oil field |
| 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 |
| CN104791237A (en) * | 2015-04-20 | 2015-07-22 | 宁波合力机泵有限公司 | Reciprocating plunger pump |
| CN107152399A (en) * | 2017-05-31 | 2017-09-12 | 中国矿业大学 | A kind of method that use polymer drag reducing agent improves gas drainage under suction liquid-ring vacuum pump |
| CN108869268A (en) * | 2018-06-28 | 2018-11-23 | 宁波钱湖石油设备有限公司 | High pressure liquid housing structure and Vertical Combination valve group |
-
2005
- 2005-04-15 CN CN 200520090300 patent/CN2787877Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430500A (en) * | 2010-09-08 | 2012-05-02 | 塔工程有限公司 | Apparatus for preventing leakage liquid crystal from dropping on a pannel or stage in lc dispenser |
| US9938875B2 (en) | 2011-08-22 | 2018-04-10 | Cummins Emission Solutions, Inc. | Urea injection systems valves |
| WO2013028729A1 (en) * | 2011-08-22 | 2013-02-28 | Cummins Emission Solutions Inc. | Urea solution pumps having leakage bypass |
| US10087804B2 (en) | 2011-08-22 | 2018-10-02 | Cummins Emission Solutions, Inc. | Urea solution pumps having leakage bypass |
| 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 |
| CN103628838A (en) * | 2013-11-24 | 2014-03-12 | 刘文化 | Sealing technology for packing box of oil pumping unit |
| CN103925185A (en) * | 2014-04-29 | 2014-07-16 | 博山水泵制造厂 | Plunger pump and carbon dioxide injection device for oil field |
| CN103925185B (en) * | 2014-04-29 | 2016-08-24 | 博山水泵制造厂 | Plunger displacement 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 |
| CN104791237A (en) * | 2015-04-20 | 2015-07-22 | 宁波合力机泵有限公司 | Reciprocating plunger pump |
| CN104791237B (en) * | 2015-04-20 | 2017-08-08 | 宁波合力机泵股份有限公司 | A kind of reciprocating plunger pump |
| CN107152399A (en) * | 2017-05-31 | 2017-09-12 | 中国矿业大学 | A kind of method that use polymer drag reducing agent improves gas drainage under suction liquid-ring vacuum pump |
| CN108869268A (en) * | 2018-06-28 | 2018-11-23 | 宁波钱湖石油设备有限公司 | High pressure liquid housing structure and Vertical Combination valve group |
| WO2020000617A1 (en) * | 2018-06-28 | 2020-01-02 | 宁波钱湖石油设备有限公司 | High pressure liquid cylinder structure and vertical type combination valve group |
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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: 20060614 Termination date: 20130415 |