CN105114301A - Rotor liquid pump without external leakage - Google Patents
Rotor liquid pump without external leakage Download PDFInfo
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- CN105114301A CN105114301A CN201510570766.8A CN201510570766A CN105114301A CN 105114301 A CN105114301 A CN 105114301A CN 201510570766 A CN201510570766 A CN 201510570766A CN 105114301 A CN105114301 A CN 105114301A
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- pump
- rotor
- liquid
- motor
- external leakage
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Abstract
The invention discloses a rotor liquid pump without external leakage. The rotor liquid pump comprises a closed outer shell, a motor arranged in the closed outer shell and a pump device driven by the motor. A liquid sucking opening is formed in one end of the closed outer shell, and a liquid draining opening is formed in the other end of the closed outer shell; the pump device is close to the liquid sucking opening, and the motor is close to the liquid draining opening. The rotor liquid pump is of a sealed structure, and is reliable in airtightness, and the problem that liquid leaks outside is avoided; pressurized liquid firstly flows through the motor and then is drained, heat generated by work of the motor can be taken away in time, and coil windings and other components in the motor are effectively cooled, so that the motor is high in efficiency and long in service life. The rotor liquid pump is especially suitable for pressure feeding of liquid which is flammable and explosive, prone to leakage, precious and rare, and has wide application prospects in the fields of the petrochemical industry, refrigeration air conditioners, low-grade energy power generation and the like.
Description
Technical field
The present invention relates to pump field, be specifically related to a kind of rotor liquor pump without external leakage.
Background technique
Pump is the energy conversion device of the pressure energy mechanical energy of prime mover being converted to liquid.Pump is mainly used to the liquid such as conveying water, oil, acid & alkali liquid, emulsified liquid, suspended emulsion and liquid metal, also can conveying liquid, gas mixture and the liquid containing suspended solids.The classification of pump has multiple, and wherein, rotor liquor pump is a class pump of extensive use.
Existing rotor liquor pump, its structure is generally motor and is in transmission connection by coupling and pump shaft, and pump shaft is provided with mechanical seal device, and whole pump assembly is placed in external environment condition, is opening type structure.The liquor pump Problems existing of existing structure is: along with liquor pump runs for a long time, on the one hand, the rotating ring of mechanical seal and the seal face of stationary ring very easily cause sealing unreliable owing to wearing and tearing or being corroded, cause leaked liquid to leak, can not meet force feed some are inflammable and explosive, be corrosive or the needs of the special liquid working medium such as valuable rare liquid; On the other hand, run for a long time, motor internal coil winding can be caused to generate heat, produce amount of heat and can not get effective cooling, affecting the efficiency even working life of motor.
Summary of the invention
In view of this, technical problem to be solved by this invention is: provide a kind of rotor liquor pump without external leakage, leaked liquid can be avoided to leak, can carry out effective cooling again to motor, improves electric efficiency.
For solving the problems of the technologies described above, technological scheme of the present invention is: without the rotor liquor pump of external leakage, comprise: closure is with the motor be located in described closure and by described motor-driven pump-unit, one end of described closure is provided with liquid sucting port, the other end of described closure is provided with liquid port, described pump-unit is near described liquid sucting port, and described motor is near described liquid port.When rotor liquor pump runs, the liquid sucting port on the self-enclosed shell of liquid enters pump-unit, under motor drives, by pump-unit, the pressure energy of liquid is increased, and the liquid stream after supercharging is after motor, and the liquid port on self-enclosed shell is discharged; On the one hand, because motor and pump-unit are arranged in closure, thus there is not the problem of liquid to external leakage; On the other hand, the liquid stream after supercharging, when motor, can be taken away the heat that motor produces, carry out effective cooling, improve electric efficiency to parts such as motor internal coil winding.
Below to multinomial optimal design of carrying out without the rotor liquor pump of external leakage of the present invention:
Wherein, described pump-unit comprises: pump case, is located at the rotor assembly in the pump chamber of described pump case, and is located at the chamber partition component described pump case coordinated with described rotor assembly for described pump chamber being divided into suction chamber and discharge side.
Wherein, further, described pump case comprises: cylinder body and the end cap being individually fixed in described cylinder body two ends, and described cylinder body and described end cap cross described pump chamber, described cylinder body is provided with the imbibition passage be communicated with the liquid sucting port of described closure, and described end cap is provided with apocenosis passage.
Wherein, described rotor assembly comprises: pump shaft, the columnar collar be located at the disc cam on described pump shaft and be set on described disc cam; The outer wall of the described collar and the contact internal walls of described cylinder body, form axially extended sealing strip.Disc cam drives the collar to rotate, and the volume of suction chamber and discharge side periodically changes, and constantly realizes the suction of liquid, supercharging and discharge.
Wherein, further, the rotating shaft of described pump shaft and described motor becomes one, and is defined as integrated rotating shaft; Described integrated rotating shaft has the axial passage along its axially extended hollow, and described integrated rotating shaft is provided with the radial passage be communicated with described axial passage near described motor place.Pump shaft and machine shaft become one, and are convenient to manufacturing; Axial passage in integrated rotating shaft and radial passage form fluid path, are convenient to liquid and flow out, strengthen the cooling to parts such as motor internal rotor windings.
Wherein, described chamber partition component comprises: along slide plate and the spring be connected to outside described slide plate of the radial groove linear reciprocating motion on described cylinder body, the inboard of described slide plate contacts with the outer circumferential face of described rotor assembly, forms axially extended sealing strip.
Wherein, described end cap corresponds to described apocenosis passage place and be provided with safety check, described safety check comprises discharge opeing valve block; Described safety check also comprises the bounding means for limiting described discharge opeing lift of valve plate, is provided with shock absorber between described discharge opeing valve block and described bounding means.The setting of safety check, effectively can stop the backflow of highly pressurised liquid, improves the volumetric efficiency of pump.
Wherein, the inwall of described cylinder body offers the compensating groove be communicated with described discharge side, described end cap is provided with the pressure relief vent be communicated with described compensating groove.The setting of compensating groove and pressure relief vent, provides the pressure release passage of highly pressurised liquid, the pulsating pressure that the confined space can eliminating discharge side produces because of liquid pressure rise and moment of torsion.
Wherein, described closure comprises: housing main body and the end socket being sealingly fastened in described housing main body two ends of tubular.Adopt the closure of this structure, first motor and pump-unit be installed in housing main body, then end socket is sealingly fastened in the two ends of housing main body, install, easily manufactured.
After have employed technique scheme, rotor liquor pump without external leakage of the present invention, due to motor and be located in closure by motor-driven pump-unit, whole rotor liquor pump adopts enclosed construction, sealing is reliable, there is not the problem of liquid to the external leakage of closure, without the need to arranging the shaft seal structures such as mechanical seal on pump shaft; When rotor liquor pump runs, liquid stream is through motor, and take away a large amount of heat that machine operation produces, can carry out effective cooling to parts such as the Inside coil windings of motor, electric efficiency is high, long service life.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of the embodiment of the present invention;
Fig. 2 is A-A cross-sectional schematic in Fig. 1 (eliminating housing main body Ib and liquid sucting port 14);
Fig. 3 forms suction chamber and discharge side schematic diagram in Fig. 2;
Fig. 4 is check valve structure schematic diagram in Fig. 1;
Fig. 5 is integrated turning shaft structure schematic diagram in Fig. 1:
In figure: I-closure; Ia-upper cover; Ib-housing main body; Ic-lower seal head; II-motor; III-pump-unit; A-suction chamber; B-discharge side;
1-liquid port; 2-connection plug; 3-rotor; 4-stator; 5-upper end cap; 51-annular protrusion; 6-cylinder body; 61-imbibition passage; 62-radial groove; 63-compensating groove; 7-lower end cap; 8-clamping bolt; The 9-collar; 10-chamber partition component; 101-slide plate; 102-spring; The integrated rotating shaft of 11-; 111-disc cam; 112-axial passage; 113-radial passage; 12-safety check; 121-discharge opeing valve block; 122-shock absorber; 123-bounding means; 124-clamping bolt; 13-apocenosis passage; 14-liquid sucting port.
Embodiment
Core of the present invention is to provide a kind of rotor liquor pump without external leakage, by motor and be located in closure by motor-driven pump-unit, whole rotor liquor pump adopts enclosed construction, and leaked liquid can be avoided to leak, effective cooling can be carried out to motor again, improve electric efficiency.
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with drawings and Examples, the technological scheme in the embodiment of the present invention is clearly and completely described.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, for vertical pump, the rotor liquor pump without external leakage of the present embodiment, comprising: closure I and the pump-unit III being located at the motor II in closure I and being driven by motor II.For convenience of installing and manufacturing, closure I adopts components welding to form, and comprising: the housing main body Ib of tubular and be fixed on upper cover Ia and the lower seal head Ic at housing main body Ib two ends by welded seal; First motor II and pump-unit III are installed in housing main body Ib, then upper cover Ia and lower seal head Ic end socket welded seal are fixed on the two ends of housing main body Ib.Wherein, upper cover Ia is provided with liquid port 1 and connection plug 2, and motor II is near liquid port 1.Wherein, be provided with liquid sucting port 14 in the bottom of housing main body Ib, pump-unit III is near liquid sucting port 14.
As shown in figures 1 and 3, pump-unit III comprises: pump case, is located at the rotor assembly in the pump chamber of pump case, and is located at the chamber partition component 10 pump case coordinated with rotor assembly for pump chamber being divided into suction chamber A and discharge side B.
As shown in Figure 1, pump case adopts modular construction, comprise: cylinder body 6 and be individually fixed in upper end cap 5 and the lower end cap 7 at cylinder body 6 two ends by clamping bolt 8, cylinder body 6 crosses pump chamber jointly with upper end cap 5 and lower end cap 7, cylinder body 6 is provided with the imbibition passage 61 (as shown in Figure 2) be communicated with liquid sucting port 14, upper end cap 5 and lower end cap 7 are respectively equipped with apocenosis passage 13.The outer circumferential face of cylinder body 6 and the internal face of housing main body Ib adopt symmetrical multi-point welding to fix.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 5, rotor assembly comprises: pump shaft, the columnar collar 9 be located at the disc cam 111 on pump shaft and be set on disc cam 111; The outer wall of the collar 9 and the contact internal walls of cylinder body 6, form axially extended sealing strip, for the ease of distinguishing, this sealing strip is called the first sealing strip.Disc cam 111 drives the collar 9 to rotate, and the continuous change in position of the first sealing strip, the volume of suction chamber A and discharge side B periodically changes, and constantly realizes the suction of liquid, supercharging and discharge.
Further, the rotating shaft of pump shaft and motor II is become one, be defined as integrated rotating shaft 11; Integrated rotating shaft 11 is provided with the axial passage 112 along its axially extended hollow, integrated rotating shaft 11 is provided with near motor II place the radial passage 113 be communicated with axial passage 112.Pump shaft and machine shaft become one, and are convenient to manufacturing, save coupling, and structure is simple; Axial passage 112 in integrated rotating shaft 11 and radial passage 113 form fluid path, are convenient to liquid and flow out, strengthen the cooling to parts such as motor II inner rotator windings.
As shown in Figures 2 and 3, wherein, chamber partition component 10 comprises: along slide plate 101 and the spring 102 be connected to outside slide plate 101 of radial groove 62 linear reciprocating motion on cylinder body 6, under spring 102 acts on, the inboard of slide plate 101 and the outer circumferential face of the collar 9 keep in touch, forming axially extended sealing strip, for the ease of distinguishing, this sealing strip being called the second sealing strip.
As shown in Figure 1 and Figure 4, for effectively stoping the backflow of highly pressurised liquid, improve the volumetric efficiency of pump, end cap corresponds to apocenosis passage 13 place and is provided with safety check 12, safety check 12 comprises discharge opeing valve block 121, the shock absorber 122 also comprising the bounding means 123 for limiting discharge opeing valve block 121 lift further and be located between discharge opeing valve block 121 and bounding means 123, bounding means 123 and shock absorber 122 can adopt sheet structure or rod-like structure, discharge opeing valve block 121, shock absorber 122 and bounding means 123 are fixed on end cap by clamping bolt 124, apocenosis passage 13 outlet port on end cap is also provided with the annular protrusion 51 for support safety check 12.
As shown in Figures 2 and 3, on the inwall of cylinder body 6, also offer the compensating groove 63 be communicated with discharge side B further, end cap is provided with the pressure relief vent (not shown) be communicated with compensating groove 63.Compensating groove 63 and the setting of pressure relief vent, provide the pressure release passage of highly pressurised liquid, and the pulsating pressure that the confined space can eliminating discharge side B produces because of liquid pressure rise and moment of torsion, be beneficial to liquor pump smooth running.
The rotor liquor pump working procedure without external leakage of the present embodiment is as follows:
In rotor liquor pump running, outside liquid enters from liquid sucting port 14, imbibition passage 61 on cylinder body 6 enters pump chamber, motor II drives integrated rotating shaft 11 to rotate, disc cam 111 in integrated rotating shaft 11 drives the collar 9 to rotate, the position of the first sealing strip constantly changes along with the rotation of disc cam 111, and the volume of suction chamber A and discharge side B periodically changes, thus constantly realizes suction, the supercharging of liquid and discharge from discharge side B; As shown by the arrows in Figure 1, liquid after supercharging is divided into two-way, wherein the apocenosis passage 13 of a route discharge side B, upper end cap 5 is discharged, flow through the parts such as the stator 4 of motor II and the coil winding of rotor 3, the apocenosis passage 13 of another route discharge side B, lower end cap 7 is discharged, be introduced into the axial passage 112 of integrated rotating shaft 11, flow out from the radial passage 113 of integrated rotating shaft 11 again, flow through the parts such as the coil winding of the rotor 3 of motor II, strengthen the cooling to rotor coil winding, the liquid port 1 that two-way liquid confluxes finally on upper cover Ia is discharged.
In sum, rotor liquor pump without external leakage of the present invention, because motor II and the pump-unit III that driven by motor II are arranged in closure I, whole rotor liquor pump assembly adopts enclosed construction, sealing is reliable, there is not the problem of liquid to the external leakage of closure, without the need to arranging the shaft seal structures such as mechanical seal on pump shaft; When rotor liquor pump runs, the liquid after supercharging first flows through motor and discharges, can take away a large amount of heat that machine operation produces in time, and carry out effective cooling to parts such as the Inside coil windings of motor, electric efficiency is high, long service life.Be particularly suitable for inflammable and explosive, the easy leakage of force feed, valuable rare liquid, have broad application prospects in fields such as petrochemical industry, refrigeration air-conditioner, low-grade energy generatings.
Above for vertical pump, the rotor liquid pump structure without external leakage of embodiment of the present invention composition and working principle thereof are described in detail.Certainly, the rotor liquor pump without external leakage of the present invention is not limited to vertical structure, also can be designed as horizontal type structure according to actual needs.
Claims (10)
1. without the rotor liquor pump of external leakage, it is characterized in that, comprise: closure is with the motor be located in described closure and by described motor-driven pump-unit, one end of described closure is provided with liquid sucting port, the other end of described closure is provided with liquid port, described pump-unit is near described liquid sucting port, and described motor is near described liquid port.
2. as claimed in claim 1 without the rotor liquor pump of external leakage, it is characterized in that, described pump-unit comprises: pump case, be located at the rotor assembly in the pump chamber of described pump case, and be located at the chamber partition component described pump case coordinated with described rotor assembly for described pump chamber being divided into suction chamber and discharge side.
3. as claimed in claim 2 without the rotor liquor pump of external leakage, it is characterized in that, described pump case comprises: cylinder body and the end cap being individually fixed in described cylinder body two ends, described cylinder body and described end cap cross described pump chamber, described cylinder body is provided with the imbibition passage be communicated with the liquid sucting port of described closure, and described end cap is provided with apocenosis passage.
4. as claimed in claim 3 without the rotor liquor pump of external leakage, it is characterized in that, described rotor assembly comprises: pump shaft, the columnar collar be located at the disc cam on described pump shaft and be set on described disc cam; The outer wall of the described collar and the contact internal walls of described cylinder body.
5., as claimed in claim 4 without the rotor liquor pump of external leakage, it is characterized in that, the rotating shaft of described pump shaft and described motor becomes one, and is defined as integrated rotating shaft; Described integrated rotating shaft has the axial passage along its axially extended hollow, and described integrated rotating shaft is provided with the radial passage be communicated with described axial passage near described motor place.
6. as claimed in claim 3 without the rotor liquor pump of external leakage, it is characterized in that, described chamber partition component comprises: along slide plate and the spring be connected to outside described slide plate of the radial groove linear reciprocating motion on described cylinder body, the inboard of described slide plate contacts with the outer circumferential face of described rotor assembly.
7. as claimed in claim 3 without the rotor liquor pump of external leakage, it is characterized in that, described end cap corresponds to described apocenosis passage place and be provided with safety check, described safety check comprises discharge opeing valve block.
8., as claimed in claim 7 without the rotor liquor pump of external leakage, it is characterized in that, described safety check also comprises the bounding means for limiting described discharge opeing lift of valve plate, is provided with shock absorber between described discharge opeing valve block and described bounding means.
9., as claimed in claim 3 without the rotor liquor pump of external leakage, it is characterized in that, the inwall of described cylinder body offers the compensating groove be communicated with described discharge side, described end cap is provided with the pressure relief vent be communicated with described compensating groove.
10. the rotor liquor pump without external leakage as described in any one of claim 1 to 9, it is characterized in that, described closure comprises: housing main body and the end socket being sealingly fastened in described housing main body two ends of tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570766.8A CN105114301B (en) | 2015-09-09 | 2015-09-09 | Rotor liquid pump without external leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510570766.8A CN105114301B (en) | 2015-09-09 | 2015-09-09 | Rotor liquid pump without external leakage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105114301A true CN105114301A (en) | 2015-12-02 |
| CN105114301B CN105114301B (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510570766.8A Active CN105114301B (en) | 2015-09-09 | 2015-09-09 | Rotor liquid pump without external leakage |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06299974A (en) * | 1993-04-13 | 1994-10-25 | Mitsubishi Heavy Ind Ltd | Liquid coolant pump |
| US6095783A (en) * | 1998-02-20 | 2000-08-01 | Hansen; Craig N. | Fluid mover |
| CN2586830Y (en) * | 2002-11-13 | 2003-11-19 | 梁肇基 | Roller sliding-vane pump |
| CN102224345A (en) * | 2008-12-01 | 2011-10-19 | 日立空调·家用电器株式会社 | Rotary fluid machine |
| CN103912495A (en) * | 2012-12-28 | 2014-07-09 | Lg电子株式会社 | Compressor |
| CN204140398U (en) * | 2014-08-21 | 2015-02-04 | 洛阳中方实业有限公司 | A kind of rolling piston refrigeration compressor with sufficient lubrication system |
| US20150071807A1 (en) * | 2013-09-10 | 2015-03-12 | John McIntye | Swinging abutment rotary pump |
| CN204961289U (en) * | 2015-09-09 | 2016-01-13 | 山东科灵新能源发展有限公司 | There is not outer rotor liquor pump that leaks |
-
2015
- 2015-09-09 CN CN201510570766.8A patent/CN105114301B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06299974A (en) * | 1993-04-13 | 1994-10-25 | Mitsubishi Heavy Ind Ltd | Liquid coolant pump |
| US6095783A (en) * | 1998-02-20 | 2000-08-01 | Hansen; Craig N. | Fluid mover |
| CN2586830Y (en) * | 2002-11-13 | 2003-11-19 | 梁肇基 | Roller sliding-vane pump |
| CN102224345A (en) * | 2008-12-01 | 2011-10-19 | 日立空调·家用电器株式会社 | Rotary fluid machine |
| CN103912495A (en) * | 2012-12-28 | 2014-07-09 | Lg电子株式会社 | Compressor |
| US20150071807A1 (en) * | 2013-09-10 | 2015-03-12 | John McIntye | Swinging abutment rotary pump |
| CN204140398U (en) * | 2014-08-21 | 2015-02-04 | 洛阳中方实业有限公司 | A kind of rolling piston refrigeration compressor with sufficient lubrication system |
| CN204961289U (en) * | 2015-09-09 | 2016-01-13 | 山东科灵新能源发展有限公司 | There is not outer rotor liquor pump that leaks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105114301B (en) | 2017-06-23 |
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Effective date of registration: 20201208 Address after: 261061 Shandong city of Weifang province high tech Zone Weihe Road intersection northbound 1 km east street and silver Patentee after: SHANDONG COOLING ENERGY SAVING EQUIPMENT Co.,Ltd. Address before: 261061 Shandong city of Weifang province high tech Zone Weihe Road intersection northbound 1 km east street and silver Patentee before: SHANDONG KELING NEW ENERGY DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhong Caixia Inventor after: Ge Jianmin Inventor after: Ma Xinjun Inventor after: Zheng Hongcai Inventor before: Ge Jianmin Inventor before: Ma Xinjun Inventor before: Zheng Hongcai |
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| CB03 | Change of inventor or designer information |