CN105402108A - Extrusion pump with pulsation buffering function and buffering method of extrusion pump - Google Patents
Extrusion pump with pulsation buffering function and buffering method of extrusion pump Download PDFInfo
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- CN105402108A CN105402108A CN201510747355.1A CN201510747355A CN105402108A CN 105402108 A CN105402108 A CN 105402108A CN 201510747355 A CN201510747355 A CN 201510747355A CN 105402108 A CN105402108 A CN 105402108A
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- extrusion
- extrusion pump
- housing
- extruded tube
- inner chamber
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- Reciprocating Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
An extrusion pump with a pulsation buffering function comprises a shell, a rolling wheel carrier, an extrusion pipe, extrusion wheels and guide wheels. The shell comprises an involute type inner cavity section close to an outlet of the extrusion pipe. The rolling wheel carrier is mounted in the center of the shell. The extrusion pipe comprises an inlet located in the lower portion and the outlet located in the upper portion. The extrusion wheels and the guide wheels are mounted on the periphery of the rolling wheel carrier. The extrusion pipe is arranged in a gap formed by the extrusion wheels, the guide wheels and the shell. The invention further provides a method for buffering slurry through the extrusion pump. Flow pulsation of an original extrusion pump is buffered through the involute type inner cavity, so that the slurry discharging uniformity of the extrusion pump is improved, and the extrusion pump is more suitable for spraying. The extrusion wheels deviate from the extrusion pipe gradually and slowly, so that the abrasion degree of the extrusion pipe is reduced, and the service life of the extrusion pipe is prolonged.
Description
Technical field
The present invention relates to a kind of pulsation damping method and device, particularly relate to a kind of extrusion pump and the way to play for time thereof with pulsation damping function.
Background technique
Extrusion pump is a kind of conventional slurry conveying equipment, extruded tube generation resiliently deformable is forced by extruding wheel, make the slurry in extruded tube to the direction motion that extruding wheel rotates and discharge from outlet, realize midge function by the elastic restoring force of extruded tube simultaneously, thus continuously slurries sucked from entrance and discharge from outlet, realize the conveying of slurries.There is pulsation phenomenon due to the problem of self existing structure in original extrusion pump, that is, during extruding, slurries are discharged from outlet, and slurries decrement is discharged or stops discharging when unclamping, this can cause conveying slurry off and on, easily causes slurry to emanate and plugging occurs, affect construction quality and efficiency.Coating thickness can be caused uneven if be used in spraying occasion, waste serious problem.In addition, be used in metering occasion can cause measuring misalignment.
Therefore, in order to solve many deficiencies and the defect of above-mentioned prior art, be necessary to study a kind of extrusion pump and way to play for time thereof with pulsation damping function.
Summary of the invention
Consider at least one the problems referred to above and complete the present invention, and one object of the present invention is to provide a kind of extrusion pump with pulsation damping function, it devises Novel extrusion pump inner-cavity structure, by the cylindrical cavity of extrusion pump extruded tube outlet section is designed to involute curved surface cavity, cushioning the flow pulsation problem of extrusion pump. this extrusion pump with pulsation damping function comprises:
Housing, it comprises the involute inner chamber section of the outlet closing on following extruded tube;
Turning rolls, it is installed on housing central authorities;
Extruded tube, it comprises the entrance and superposed outlet that are positioned at bottom;
Extruding wheel and upper saw pulley, it is arranged on the surrounding of turning rolls, and extruded tube is arranged on extruding wheel and in the space that formed between upper saw pulley and housing.
According to a further aspect of the invention, described extruding wheel is to leaving in the process of extruded tube completely from rotating to the starting point of involute inner chamber section, and extruded tube is original cylindric by being reverted to by the flat extruded completely progressively along involute inner chamber section.
According to a further aspect of the invention, the starting point of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, and terminal is L to the distance of housing central authorities, and wherein L is greater than R.
According to a further aspect of the invention, additionally provide a kind of extrusion pump with pulsation damping function, it is characterized in that the housing of this extrusion pump comprises the involute inner chamber section of the outlet closing on extruded tube.
According to a further aspect of the invention, the starting point of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, and terminal is L to the distance of housing central authorities, and wherein L is greater than R.
According to a further aspect of the invention, additionally provide a kind of extrusion pump that adopts and cushion slurry methods, it adopts the above-mentioned extrusion pump buffering slurry with pulsation damping function.
According to a further aspect of the invention, described extrusion pump is for carrying slurry, medical fluid or chemical liquid.
Compared with prior art, beneficial effect of the present invention is:
1, by adopting involute inner chamber to cushion the flow pulsation of original extrusion pump, improve extruding pump performance characteristic, making it more be appropriate to spraying operation.
2, extruding wheel leaves extruded tube gradually slowly, reduces the degree of wear of extruded tube, improves the working life of extruded tube.
Accompanying drawing explanation
Fig. 1 is the structural representation with the extrusion pump of pulsation damping function according to a kind of preferred embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing; by preferred embodiment, preferred forms of the present invention is described; here embodiment is to explain the present invention; and should not be construed as limitation of the present invention; when not departing from spirit of the present invention and essential scope; can make various changes and modifications, these all should be included within protection scope of the present invention.
Embodiment 1
See Fig. 1, the invention provides a kind of extrusion pump with pulsation damping function, it devises Novel extrusion pump inner-cavity structure, by the cylindrical cavity of extrusion pump extruded tube outlet section is designed to involute curved surface cavity, cushioning the flow pulsation problem of extrusion pump. this extrusion pump with pulsation damping function can comprise:
Housing, it comprises the involute inner chamber section 2 of the outlet 6 closing on following extruded tube;
Turning rolls, it is installed on housing central authorities;
Extruded tube, it comprises the entrance 3 and superposed outlet 6 that are positioned at bottom;
Extruding wheel and upper saw pulley (not shown), it is arranged on the surrounding of turning rolls, and extruded tube is arranged on extruding wheel and in the space that formed between upper saw pulley and housing.
Preferably, described extruding wheel is to leaving in the process of extruded tube completely from rotating to the starting point 4 of involute inner chamber section, and extruded tube is original cylindric by being reverted to by the flat extruded completely progressively along involute inner chamber section.
Preferably, the starting point 4 of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, and terminal 5 is L to the distance of housing central authorities, and wherein L is greater than R.
Preferably, additionally provide a kind of method adopting extrusion pump to cushion slurry, it adopts the above-mentioned extrusion pump buffering slurry with pulsation damping function.
Preferably, described extrusion pump is for carrying slurry such as mortar, medical fluid or chemical liquid.
Preferably, described housing is on the basis of cylindrical cavity housing, be provided with involute inner chamber section 2.Be understandable that, the dotted portion indicated by mark 1 in Fig. 1 is original cylindrical cavity housing.
Preferably, pulsation such as can be made to be less than 5% by the present invention, even less.
Preferably, additionally provide a kind of extrusion pump with pulsation damping function, it is characterized in that the housing of this extrusion pump comprises the involute inner chamber section of the outlet closing on extruded tube.Preferably, the starting point of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, and terminal is L to the distance of housing central authorities, and wherein L is greater than R.
Preferably, additionally provide a kind of extrusion pump with pulsation damping function, the housing of involute inner chamber, extruded tube, extruding wheel, upper saw pulley, turning rolls can be comprised, it is characterized in that: extruding wheel and upper saw pulley are arranged on turning rolls surrounding, turning rolls is installed on housing central authorities, and extruded tube is placed on extruding wheel and in the space that formed between upper saw pulley and housing.
Be understandable that, extruding wheel is away to leaving in the process of extruded tube completely from rotating to involute inner chamber place, and extruded tube is original cylindric along involute inner chamber being reverted to by flat slowly.
Preferably, relative to traditional cylindrical cavity housing, this shell inner surface curved surface is uniform away from original cylndrical surface gradually.
Be understandable that, know-why of the present invention is:
By the structural design of involute curved surface cavity, extruding wheel from rotating to involute inner chamber place away to leaving in the process of extruded tube completely, extruded tube is original cylindric along involute inner chamber being reverted to by flat slowly, make extruding wheel slowly away from extruded tube, realize extruded tube to increase slowly in the space of extruded segment, to ensure that follow-up slurry can supplement in time, avoid causing ducted slurry to be sucked back extruded tube because supplementing slurry deficiency, thus cushioned the flow pulsation caused because extruded tube resets suddenly in original structure.
In sum, beneficial effect of the present invention is:
1, by adopting involute inner chamber to cushion the flow pulsation of original extrusion pump, improve extruding pump performance characteristic, making it more be appropriate to spraying operation.
2, extruding wheel leaves extruded tube gradually slowly, reduces the degree of wear of extruded tube, improves the working life of extruded tube.
The invention is not restricted to above-mentioned specific embodiment.Be understandable that, when not departing from spirit of the present invention and essential scope, can make various changes and modifications, these all should be included within protection scope of the present invention.
Claims (7)
1. there is an extrusion pump for pulsation damping function, it is characterized in that comprising:
Housing, it comprises the involute inner chamber section of the outlet closing on following extruded tube;
Turning rolls, it is installed on housing central authorities;
Extruded tube, it comprises the entrance and superposed outlet that are positioned at bottom;
Extruding wheel and upper saw pulley, it is arranged on the surrounding of turning rolls, and extruded tube is arranged on extruding wheel and in the space that formed between upper saw pulley and housing.
2. the extrusion pump with pulsation damping function according to claim 1, it is characterized in that described extruding wheel to leaving in the process of extruded tube completely from rotating to the starting point of involute inner chamber section, extruded tube is original cylindric by being reverted to by the flat extruded completely progressively along involute inner chamber section.
3. the extrusion pump with pulsation damping function according to claim 2, it is characterized in that the starting point of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, terminal is L to the distance of housing central authorities, and wherein L is greater than R.
4. the extrusion pump with pulsation damping function according to claim 3, is characterized in that described extrusion pump is for carrying slurry, medical fluid or chemical liquid.
5. there is an extrusion pump for pulsation damping function, it is characterized in that the housing of this extrusion pump comprises the involute inner chamber section of the outlet closing on extruded tube.
6. the extrusion pump with pulsation damping function according to claim 5, it is characterized in that the starting point of described involute inner chamber section is the radius R of housing to the distance of housing central authorities, terminal is L to the distance of housing central authorities, and wherein L is greater than R.
7. adopt extrusion pump to cushion a method for slurry, its feature carries out slurry buffering at the extrusion pump with pulsation damping function of employing according to any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510747355.1A CN105402108A (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffering function and buffering method of extrusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510747355.1A CN105402108A (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffering function and buffering method of extrusion pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105402108A true CN105402108A (en) | 2016-03-16 |
Family
ID=55467808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510747355.1A Pending CN105402108A (en) | 2015-11-06 | 2015-11-06 | Extrusion pump with pulsation buffering function and buffering method of extrusion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105402108A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965041A (en) * | 1956-05-16 | 1960-12-20 | Clark Robert Edward David | Rotary pump apparatus |
| CN2256044Y (en) * | 1995-06-13 | 1997-06-11 | 丹阳光辉机械制造有限公司 | Pulsing infusion pump with elastic pipe-wall |
| CN2747379Y (en) * | 2004-11-16 | 2005-12-21 | 保定兰格恒流泵有限公司 | Peristaltic pump capable of automatically adjusting pressure pipe gap |
| CN102878064A (en) * | 2012-08-31 | 2013-01-16 | 温州工程机械有限公司 | Multi-connection type rubber tube extrusion pump |
| CN203430763U (en) * | 2013-09-03 | 2014-02-12 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion type delivery pump |
| CN204253335U (en) * | 2014-11-17 | 2015-04-08 | 张彦峰 | Micropulsation Wriggling Pump Head and peristaltic pump |
| CN205260279U (en) * | 2015-11-06 | 2016-05-25 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion pump with pulsation buffer function |
-
2015
- 2015-11-06 CN CN201510747355.1A patent/CN105402108A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2965041A (en) * | 1956-05-16 | 1960-12-20 | Clark Robert Edward David | Rotary pump apparatus |
| CN2256044Y (en) * | 1995-06-13 | 1997-06-11 | 丹阳光辉机械制造有限公司 | Pulsing infusion pump with elastic pipe-wall |
| CN2747379Y (en) * | 2004-11-16 | 2005-12-21 | 保定兰格恒流泵有限公司 | Peristaltic pump capable of automatically adjusting pressure pipe gap |
| CN102878064A (en) * | 2012-08-31 | 2013-01-16 | 温州工程机械有限公司 | Multi-connection type rubber tube extrusion pump |
| CN203430763U (en) * | 2013-09-03 | 2014-02-12 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion type delivery pump |
| CN204253335U (en) * | 2014-11-17 | 2015-04-08 | 张彦峰 | Micropulsation Wriggling Pump Head and peristaltic pump |
| CN205260279U (en) * | 2015-11-06 | 2016-05-25 | 中国建筑科学研究院建筑机械化研究分院 | Extrusion pump with pulsation buffer function |
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Application publication date: 20160316 |
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| RJ01 | Rejection of invention patent application after publication |