CN105604956A - Combined type efficient self-sucking pump - Google Patents
Combined type efficient self-sucking pump Download PDFInfo
- Publication number
- CN105604956A CN105604956A CN201610053972.6A CN201610053972A CN105604956A CN 105604956 A CN105604956 A CN 105604956A CN 201610053972 A CN201610053972 A CN 201610053972A CN 105604956 A CN105604956 A CN 105604956A
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- China
- Prior art keywords
- pump
- cavity
- self
- scribing
- pump shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a combined type efficient self-sucking pump. A dividing sheet cavity is arranged in a front cavity of a sealing box body, and is an annular element; a pump shaft passes through the dividing sheet cavity; the front cavity of the sealing box body is in eccentric arrangement with the pump shaft; the dividing sheet cavity and the pump shaft are in eccentric arrangement; a self-sucking shaft sleeve arranged on the pump shaft is arranged between the pump shaft and the dividing sheet cavity; a plurality of strip-shaped dividing sheets parallel to the axial line of the pump shaft are arranged between the back part of the self-sucking shaft sleeve and the dividing sheet cavity; two opposite through holes, i.e., a sucking-in hole and a discharging hole are formed in the dividing sheet cavity. Compared with the prior art, the combined type efficient self-sucking pump has the advantages that the self-sucking time is short; the sucking stroke is long; the efficiency is high, and the like.
Description
Technical field the present invention relates to a kind of pump, relates in particular to a kind of self priming pump.
Background technology self priming pump is in industrial production, to apply more pump class, the basic structure of tradition self priming pump is: the pump case inside with fluid inlet and outlet is provided with impeller, it is fixed on the front end of horizontal pump shaft by impeller nut, pump shaft is through the bearing bracket stand that is positioned at pump case rear portion, rear end is positioned at outside bearing bracket stand housing, and wherein the front end of bearing bracket stand is connected with the rear end of pump case by bolt, in bearing bracket stand housing, front portion is provided with front roll bearing, in bearing bracket stand housing, rear rolling bearing is established at rear portion, front roll bearing and rear rolling bearing are all located between pump shaft and bearing bracket stand, and they are fixed by the bearing gland being connected with bearing bracket stand, the lower end of bearing bracket stand is also bolted underframe, the rear portion of impeller is provided with the pump cover being enclosed within on pump shaft, this pump cover is provided with the ring of evagination, this ring is located between described pump case and bearing bracket stand, in the die cavity that pump cover and link form, be provided with the seal case being enclosed within on pump shaft, sealing casing is bolted on the rear portion of pump cover, the rear cavity of described seal case has axle sleeve and mechanical seal, axle sleeve is arranged on pump shaft, between axle sleeve and seal case, establish mechanical seal. the shortcomings such as the self priming pump of this structure exists self-priming time long, and suction lift is low, and efficiency is low.
Summary of the invention the object of the present invention is to provide the compound efficient self priming pump that a kind of self-priming time is short, suction journey is high, efficiency is high.
The present invention is mainly again the improvement on traditional self priming pump basis, and concrete technical scheme is as follows:
The present invention mainly includes pump case, pump shaft, impeller, bearing bracket stand, forward and backward rolling bearing and mechanical seal, the pump case inside wherein with fluid inlet and outlet is provided with impeller, it is fixed on the front end of horizontal pump shaft by impeller nut, pump shaft is through the bearing bracket stand that is positioned at pump case rear portion, and rear end is positioned at outside bearing bracket stand housing, and wherein the front end of bearing bracket stand is connected with the rear end of pump case by bolt, in bearing bracket stand housing, front portion is provided with front roll bearing, in bearing bracket stand housing, rear rolling bearing is established at rear portion, front roll bearing and rear rolling bearing are all located between pump shaft and bearing bracket stand, and they are fixed by the bearing gland being connected with bearing bracket stand, the lower end of bearing bracket stand is also bolted underframe, the rear portion of impeller is provided with the pump cover being enclosed within on pump shaft, this pump cover is provided with the ring of evagination, this ring is located between described pump case and bearing bracket stand, in the die cavity that pump cover and link form, be provided with the seal case being enclosed within on pump shaft, sealing casing is bolted on the rear portion of pump cover, the rear cavity of described seal case has axle sleeve and mechanical seal, axle sleeve is arranged on pump shaft, between axle sleeve and seal case, establish mechanical seal, the present invention also includes self-priming assembly, suction line and gas exhaust piping, described self-priming assembly includes scribing cavity, self-priming axle sleeve, scribing and spring, wherein scribing cavity is arranged in the front cavity of seal case, and scribing cavity is annular element, and above-mentioned pump shaft is through scribing cavity, the front cavity of above-mentioned seal case and pump shaft eccentric setting, still eccentric setting of scribing cavity and pump shaft, between described pump shaft and scribing cavity, there is the self-priming axle sleeve being arranged on pump shaft, the axial front portion of self-priming axle sleeve is arranged in the centre bore of pump cover, and the axial rear portion of self-priming axle sleeve is arranged in the front cavity of seal case, between the rear portion of described self-priming axle sleeve and above-mentioned scribing cavity, establish the bar shaped scribing that several are parallel to pump shaft axis, wherein width one end of each scribing is all plugged in the bar shape trench hole A on self-priming axle sleeve, and in each slotted eye A of self-priming axle sleeve, some springs are all set, the bottom land of one end of spring and slotted eye A joins, and the other end of spring stretches in the slotted eye B in scribing, width the other end of described each scribing and the inwall of scribing cavity join, described scribing cavity is provided with two relative through holes, i.e. inlet hole and tap, one end of described suction line is connected with suction hole through seal case, and the other end of suction line is connected with the fluid suction casing of above-mentioned pump case, establishes valve A in described suction line, one end of described gas exhaust piping is connected with steam vent through seal case, and the other end of gas exhaust piping is arranged on the outside of bearing bracket stand, establishes valve B on described gas exhaust piping.
Further, the present invention also comprises a pouring pipe road, this pouring pipe road is made up of pipeline and three-way connection, this pouring pipe road comprises an inlet, two liquid outlets, one of them liquid outlet is connected with the rear cavity of seal case through bearing bracket stand, and another liquid outlet on pouring pipe road is connected with the fluid expulsion section of described pump case; Valve C is established near communication seals box location in described pouring pipe road, and valve D is established near inlet position in pouring pipe road.
The present invention is the self priming centrifugal pump that centrifugal pump and scribing formula self-priming impeller (self-priming assembly) are combined into one, this Combined type self-priming pump is in extracting liquid liquid level during lower than centrifugal pump, the gas that can utilize self-priming impeller to find time in centrifugal pump suction line, make to be pumped liquid enters in centrifugal pump under the effect of pressure differential, thereby complete self-priming process, make centrifugal pump possess normal operating conditions. the present invention is in the time of work, before pump startup, close pump discharge, open valve D, valve B, valve A and valve C, add appropriate amount of fluid in pouring pipe road after, mechanical seal is rinsed, start pump, by pump cover, self-priming assembly and seal case (5) composition scribing formula vacuum pump structure, by suction line, the gas in centrifugal pump entrance pipe is sucked in scribing chamber, gas is discharged by gas exhaust piping under self-priming impeller action, gas in centrifugal pump entrance pipe is endlessly under the effect of self-priming impeller like this, in gas exhaust piping, discharge, reach until be full of liquid in centrifugal pump shell the state that can work, self-priming impeller completes self-priming process, close each valve.
The present invention compared with prior art tool has the following advantages:
1, the gas that can find time in a short period of time in anticentripetal spiral casing suction line, completes self-priming process, and suction journey is high, through test, can complete the self-priming process of centrifugal pump in 15S, and suction lift can reach 8-9m;
2. operating efficiency is high, and maintenance is convenient, long service life;
3, self-priming impeller and centrifugal impeller share mechanical seal, simple in structure, compact.
Brief description of the drawings Fig. 1 is that master of the present invention looks generalized section.
Fig. 2 is the schematic cross-section of self-priming assembly of the present invention.
Next detailed description of the invention just elaborates to the present invention by reference to the accompanying drawings
As depicted in figs. 1 and 2, pump case 1 inside with fluid inlet and outlet is provided with impeller 2, and it is fixed on the front end of horizontal pump shaft 3 by impeller nut, and pump shaft is through the bearing bracket stand 4 that is positioned at pump case rear portion, rear end is positioned at outside bearing bracket stand housing, and wherein the front end of bearing bracket stand is connected with the rear end of pump case by bolt, in bearing bracket stand housing, front portion is provided with front roll bearing 5, in bearing bracket stand housing, rear rolling bearing 6 is established at rear portion, front roll bearing and rear rolling bearing are all located between pump shaft and bearing bracket stand, and they are fixed by the bearing gland being connected with bearing bracket stand, the lower end of bearing bracket stand is also bolted underframe, the rear portion of impeller is provided with the pump cover 7 being enclosed within on pump shaft, this pump cover is provided with the ring of evagination, this ring is located between described pump case and bearing bracket stand, in the die cavity that pump cover and link form, be provided with the seal case 8 being enclosed within on pump shaft, sealing casing is bolted on the rear portion of pump cover, the rear cavity of described seal case has axle sleeve 9 and mechanical seal 10, axle sleeve is arranged on pump shaft, between axle sleeve and seal case, establish mechanical seal, scribing cavity 11 is arranged in the front cavity of seal case, and scribing cavity is the annular element that external diameter is identical with the front cavity internal diameter of seal case, and above-mentioned pump shaft is through scribing cavity, the front cavity of above-mentioned seal case and pump shaft eccentric setting, still eccentric setting of scribing cavity and pump shaft, between described pump shaft and scribing cavity, there is the self-priming axle sleeve 12 being arranged on pump shaft, the axial front portion of self-priming axle sleeve is arranged in the centre bore of pump cover, and the axial rear portion of self-priming axle sleeve is arranged in the front cavity of seal case, between the rear portion of described self-priming axle sleeve and above-mentioned scribing cavity, establish 4 bar shaped scribings 13 that are parallel to pump shaft axis, wherein width one end of each scribing is all plugged in the bar shape trench hole 14 on self-priming axle sleeve, and each slotted eye 14 of self-priming axle sleeve is interior all arranges 5 springs 15, the bottom land of one end of spring and slotted eye 14 joins, and the other end of spring stretches in the slotted eye 16 in scribing, width the other end of described each scribing and the inwall of scribing cavity join, described scribing cavity is provided with two relative through holes, i.e. inlet hole 17 and tap 18, one end of suction line 19 is connected with suction hole through seal case, and the other end of suction line is connected with the fluid suction casing of above-mentioned pump case, establishes valve 20 in described suction line, one end of gas exhaust piping 21 is connected with steam vent through seal case, and the other end of gas exhaust piping is arranged on the outside of bearing bracket stand, establishes valve 22 on described gas exhaust piping, pouring pipe road 23 is made up of pipeline and three-way connection, this pouring pipe road comprises an inlet 24, two liquid outlets, one of them liquid outlet 25 is connected with the rear cavity of seal case through bearing bracket stand, and another liquid outlet 26 on pouring pipe road is connected with the fluid expulsion section of described pump case, valve 27 is established near communication seals box location in described pouring pipe road, and valve 28 is established near inlet position in pouring pipe road.
Claims (2)
1. a compound efficient self priming pump, comprises pump case, pump shaft, impeller, bearing bracket stand, forward and backward rollingBearing and mechanical seal, the pump case inside wherein with fluid inlet and outlet is provided with impeller, and it is by impeller spiral shellMother is fixed on the front end of horizontal pump shaft, and pump shaft is through the bearing bracket stand that is positioned at pump case rear portion, and rear end is positioned at bearing bracket standOutside housing, wherein the front end of bearing bracket stand is connected with the rear end of pump case by bolt; In bearing bracket stand housing, establish front portionHave front roll bearing, in bearing bracket stand housing, rear rolling bearing is established at rear portion, and front roll bearing and rear rolling bearing are equalBe located between pump shaft and bearing bracket stand, and they fix bearing bracket stand by the bearing gland being connected with bearing bracket standLower end be also bolted underframe, the rear portion of impeller is provided with the pump cover being enclosed within on pump shaft, on this pump cover, establishesHave the ring of evagination, this ring is located between described pump case and bearing bracket stand, in the die cavity that pump cover and link formBe provided with the seal case being enclosed within on pump shaft, sealing casing is bolted on the rear portion of pump cover, described closeThe rear cavity of joint sealing body has axle sleeve and mechanical seal, and axle sleeve is arranged on pump shaft, axle sleeve and seal caseBetween establish mechanical seal. It is characterized in that: also include self-priming assembly, suction line and gas exhaust piping, instituteState self-priming assembly and include scribing cavity, self-priming axle sleeve, scribing and spring, wherein scribing cavity is arranged onIn the front cavity of seal case, scribing cavity is annular element, and above-mentioned pump shaft is through scribing cavity; Above-mentioned closeThe front cavity of joint sealing body and pump shaft eccentric setting, still eccentric setting of scribing cavity and pump shaft, described pump shaft withBetween scribing cavity, have the self-priming axle sleeve being arranged on pump shaft, the axial front portion of self-priming axle sleeve is arranged on pump coverCentre bore in, the axial rear portion of self-priming axle sleeve is arranged in the front cavity of seal case; Described self-priming axleBetween the rear portion of cover and above-mentioned scribing cavity, establish the bar shaped scribing that several are parallel to pump shaft axis, wherein eachWidth one end of scribing is all plugged in the bar shape trench hole A on self-priming axle sleeve, and self-priming axle sleeveIn each slotted eye A, some springs are all set, the bottom land of one end of spring and slotted eye A joins, spring anotherOne end is stretched in the slotted eye B in scribing; Width the other end of described each scribing and scribing cavityInwall joins; Described scribing cavity is provided with two relative through holes, i.e. inlet hole and tap; Described suctionOne end of air pipe is connected with suction hole through seal case, the other end of suction line and above-mentioned main pump shellFluid suction casing be connected, in described suction line, establish valve A; One end of described gas exhaust piping is through closeJoint sealing body is connected with steam vent, and the other end of gas exhaust piping is arranged on the outside of bearing bracket stand, described blast pipeLu Shangshe valve B.
2. compound efficient centrifugal pump according to claim 1, is characterized in that: also comprise that is filled with a liquidPipeline, this pouring pipe road is made up of pipeline and three-way connection, and this pouring pipe road comprises an inlet,Two liquid outlets, one of them liquid outlet is connected with the rear cavity of seal case through bearing bracket stand, fills with liquidAnother liquid outlet of pipeline is connected with the fluid expulsion section of described pump case; Described pouring pipe road is near being communicated withValve C is established in seal case position, and valve D is established near inlet position in pouring pipe road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053972.6A CN105604956A (en) | 2016-01-27 | 2016-01-27 | Combined type efficient self-sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610053972.6A CN105604956A (en) | 2016-01-27 | 2016-01-27 | Combined type efficient self-sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105604956A true CN105604956A (en) | 2016-05-25 |
Family
ID=55985184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610053972.6A Pending CN105604956A (en) | 2016-01-27 | 2016-01-27 | Combined type efficient self-sucking pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105604956A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499639A (en) * | 2016-11-23 | 2017-03-15 | 深圳中广核工程设计有限公司 | Self priming pump |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
| CN114233642A (en) * | 2021-11-08 | 2022-03-25 | 利欧集团浙江泵业有限公司 | Water pump capable of discharging bubbles in fluid |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255098A (en) * | 1977-03-22 | 1981-03-10 | Barmag Barmer Machinenfabrik Aktiengesellschaft | Rotary vane pump assembly |
| CN2308741Y (en) * | 1997-05-20 | 1999-02-24 | 机械工业部合肥通用机械研究所 | Self-sucking centrifugal pump with air extracting wheel |
| CN101290013A (en) * | 2008-05-26 | 2008-10-22 | 江苏振华泵业制造有限公司 | Vertical self-priming centrifugal pump for ship |
| CN103267021A (en) * | 2013-03-29 | 2013-08-28 | 大连罗斯泵业有限公司 | Horizontal type self-priming pump |
| CN205533270U (en) * | 2016-01-27 | 2016-08-31 | 大连罗斯泵业有限公司 | High -efficient self priming pump of combined type |
-
2016
- 2016-01-27 CN CN201610053972.6A patent/CN105604956A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4255098A (en) * | 1977-03-22 | 1981-03-10 | Barmag Barmer Machinenfabrik Aktiengesellschaft | Rotary vane pump assembly |
| CN2308741Y (en) * | 1997-05-20 | 1999-02-24 | 机械工业部合肥通用机械研究所 | Self-sucking centrifugal pump with air extracting wheel |
| CN101290013A (en) * | 2008-05-26 | 2008-10-22 | 江苏振华泵业制造有限公司 | Vertical self-priming centrifugal pump for ship |
| CN103267021A (en) * | 2013-03-29 | 2013-08-28 | 大连罗斯泵业有限公司 | Horizontal type self-priming pump |
| CN205533270U (en) * | 2016-01-27 | 2016-08-31 | 大连罗斯泵业有限公司 | High -efficient self priming pump of combined type |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499639A (en) * | 2016-11-23 | 2017-03-15 | 深圳中广核工程设计有限公司 | Self priming pump |
| CN110500285A (en) * | 2019-10-11 | 2019-11-26 | 江苏优耐机械制造有限公司 | A kind of fast self-priming high-efficiency vertical pipeline self sucking pump |
| CN114233642A (en) * | 2021-11-08 | 2022-03-25 | 利欧集团浙江泵业有限公司 | Water pump capable of discharging bubbles in fluid |
| CN114233642B (en) * | 2021-11-08 | 2024-03-15 | 利欧集团浙江泵业有限公司 | Water pump capable of discharging bubbles in fluid |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160525 |
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| WD01 | Invention patent application deemed withdrawn after publication |