CN104564657A - Twin-screw liquid pump - Google Patents
Twin-screw liquid pump Download PDFInfo
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- CN104564657A CN104564657A CN201510011706.2A CN201510011706A CN104564657A CN 104564657 A CN104564657 A CN 104564657A CN 201510011706 A CN201510011706 A CN 201510011706A CN 104564657 A CN104564657 A CN 104564657A
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- gear
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Abstract
The invention discloses a twin-screw liquid pump which comprises a housing, wherein the housing is internally provided with a positive rotor assembly and a negative rotor assembly; a first gear is arranged at the first end of the positive rotor assembly, a second gear is arranged at the first end of the negative rotor assembly, and the first gear is engaged with the second gear; the second end of one of the rotors is connected with driving equipment; the positive rotor assembly comprises a positive rotor main body and a first connecting part and a second connecting part which are respectively arranged at two ends of the positive rotor main body and are connected with the positive rotor main bodies; the negative rotor assembly comprises a negative rotor main body and a third connecting part and a fourth connecting part which are respectively arranged at two ends of the negative rotor main body and are connected with the negative rotor main body; and sealing parts and bearing parts are respectively in circumferential directions of the first, second, third and fourth connecting parts. The twin-screw liquid pump disclosed by the invention is good in adaptability of gas and liquid phases and high in reliability.
Description
Technical field
The invention belongs to liquor pump technical field, relate to a kind of liquor pump, particularly relate to a kind of twin-screw liquid pump.
Background technique
Existing liquor pump mostly is gear pump or the centrifugal pump of opening type.
The defect of gear pump is: an always gear drive another one gear in gear pump, and the merit of consumption has half consumption in driving process; Meanwhile, in ORC circulation, the viscosity of liquid is usually lower, and gear is easy to wear.
The defect of centrifugal pump is: after liquid sucks by centrifugal pump, in suction process, pressure reduces, and liquid is easily vaporized, and causes the efficiency of centrifugal pump to reduce; Thus affect the efficiency of whole ORC circulation.The defect of the liquor pump of opening type is, working medium is easily revealed by shaft seal.
In view of this, nowadays in the urgent need to designing a kind of new liquor pump, to overcome the above-mentioned defect of existing liquor pump.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of twin-screw liquid pump, can further improve the sealing of liquor pump.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of twin-screw liquid pump, described twin-screw liquid pump comprises housing, is provided with male rotor, female rotor in described housing;
The first end of described male rotor is provided with the first gear, and the first end of female rotor is provided with the second gear, and the first gear is meshed with the second gear; Second end of one of them rotor connects driving arrangement;
Described male rotor assembly comprises male rotor main body, is arranged at male rotor main body two ends, the first joint be connected with male rotor main body, the second joint respectively;
Described female rotor assembly comprises female rotor main body, is arranged at female rotor main body two ends, the 3rd joint be connected with female rotor main body, the 4th joint respectively;
The circumference of the first joint, the second joint, the 3rd joint, the 4th joint is respectively equipped with Sealing, bearing part.
As a preferred embodiment of the present invention, the second end of described male rotor is fixedly connected with described driving arrangement.
As a preferred embodiment of the present invention, described second joint is the part of male rotor assembly near male rotor assembly second end, and the 4th joint is the part of female rotor assembly near female rotor assembly second end;
The bearing part that the circumference of described second joint, the 4th joint is arranged is respectively the second bearing pack, the 4th bearing pack, and the second bearing pack, the 4th bearing pack all at least comprise 2 bearings.
As a preferred embodiment of the present invention, described housing comprises body, end body, first joint, male rotor main body, the 3rd joint, female rotor main body are arranged in body, and the major component of the second joint, the major component of the 4th joint are arranged in end body.First gear, the second gear are arranged in the first lid.
As a preferred embodiment of the present invention, described body is furnished with the first lid, and described end body is furnished with the second lid.
As a preferred embodiment of the present invention, described second joint stretches out the second lid, and the joint of the second joint and the second lid is provided with the 5th Sealing.
Described male rotor assembly, female rotor assembly are twin-screw rotor assembly.The gear ratio of described female rotor assembly, male rotor assembly is 6:5.
Beneficial effect of the present invention is: the twin-screw liquid pump that the present invention proposes, and gas-liquid two-phase adaptability is good, and reliability is high.Be different from traditional gear pump, male rotor by gear transmission not higher than 25% power to female rotor, greatly reduce power loss, improve the efficiency of liquor pump; This twin-screw liquid pump adopts reliable sealing, active chamber and bearing bore is effectively separated, and effectively prevent lubricant oil and working medium pollutes mutually, significantly improves the sealing of liquor pump.
Accompanying drawing explanation
Fig. 1 is the structural representation of twin-screw liquid pump of the present invention.
Fig. 2 is the external structure schematic diagram of twin-screw liquid pump of the present invention.
Fig. 3 is the structural representation of twin-screw rotor in twin-screw liquid pump of the present invention.
Accompanying drawing primary clustering symbol description is as follows:
1: body 2: end body
3: male rotor assembly 4: female rotor assembly
5: the first lid 6: the second lids
7: the first gear 8: the second gears
9: clutch shaft bearing group 10: the second bearing pack
11: the three bearing pack 12: the four bearing pack
13: the first Sealing 14: the second Sealings
15: the three Sealing 16: the four Sealings
17: the five Sealings 18: male rotor assembly second end
21: liquor inlet 22: liquid outlet
Embodiment
The preferred embodiments of the present invention are described in detail below in conjunction with accompanying drawing.
Embodiment one
Refer to Fig. 1, Fig. 2, the present invention discloses a kind of twin-screw liquid pump, and described twin-screw liquid pump comprises housing, and described housing comprises body 1, end body 2, and described body 1 is furnished with the first lid 5, and described end body 2 is furnished with the second lid 6.
Male rotor assembly 3, female rotor assembly 4 is provided with in described housing; The first end of described male rotor assembly 3 is provided with the first gear 7, and the first end of female rotor assembly 4 is provided with the second gear 8, first gear 7 and is meshed with the second gear 8.Second end of one of them rotor assembly connects motor (also can be other drive units); In the present embodiment, the second end 18 of male rotor assembly 3 connects motor.
Described male rotor assembly 3 comprises male rotor main body, is arranged at male rotor main body two ends, the first joint be fixedly connected with male rotor main body, the second joint respectively.Described female rotor assembly comprises female rotor main body, is arranged at female rotor main body two ends, the 3rd joint be fixedly connected with female rotor main body, the 4th joint respectively.The circumference of the first joint, the second joint, the 3rd joint, the 4th joint is respectively equipped with Sealing, bearing part.
In the present embodiment, the first joint, the second joint, the 3rd joint, the 4th joint include the first linkage section, the second linkage section, and the first linkage section compares the second linkage section away from male rotor assembly/female rotor assembly; The external diameter of the second linkage section is greater than the first linkage section.The circumference of the first linkage section arranges bearing part 9,10,11,12, and the circumference of the second linkage section arranges Sealing 13,14,15,16.
Described second joint is the part of male rotor assembly near male rotor assembly second end 18, and the 4th joint is the part of female rotor assembly near female rotor assembly second end; The bearing part that the circumference of described first joint, the second joint, the 3rd joint, the 4th joint is arranged is respectively clutch shaft bearing group 9, the 3rd bearing pack 11, second bearing pack 10, the 4th bearing pack 12,3rd bearing pack 11, the 4th bearing pack 12 all at least comprise 2 bearings, and clutch shaft bearing group 9, second bearing pack 10 at least comprises 1 bearing respectively.
Particularly, the circumference of the first joint arranges clutch shaft bearing group 9, first Sealing 13 respectively, the circumference of the second joint arranges the 3rd Sealing 15, the 3rd bearing pack 11 respectively, the circumference that the circumference of the 3rd joint arranges the second bearing pack 10, second Sealing the 14, four joint respectively arranges the 4th Sealing 16, the 4th bearing pack 12 respectively.
First joint, male rotor main body, the 3rd joint, female rotor main body are arranged in body 1, and the major component of the second joint, the 4th joint are arranged in end body 2.
The joint that described second joint stretches out the second lid 6, second joint and the second lid 6 is provided with the 5th Sealing 17.
Refer to Fig. 2, the top of body 1 is provided with liquor inlet 21, and the side of body 1 is provided with liquid outlet 22.
Described male rotor, female rotor are twin-screw rotor, according to the difference of operating mode, select different yin, yang rotor gear ratios.In the present embodiment, yin, yang rotor gear ratio is selected to be 6:5, as shown in Figure 3.
In sum, the twin-screw liquid pump that the present invention proposes, gas-liquid two-phase adaptability is good, and reliability is high.Be different from traditional gear pump, male rotor by gear transmission not higher than 25% power to female rotor, greatly reduce power loss, improve the efficiency of liquor pump; This twin-screw liquid pump adopts reliable sealing, active chamber and bearing bore is effectively separated, and effectively prevent lubricant oil and working medium pollutes mutually, significantly improves the sealing of liquor pump.
Here description of the invention and application is illustrative, not wants by scope restriction of the present invention in the above-described embodiments.Distortion and the change of embodiment disclosed are here possible, are known for the replacement of embodiment those those of ordinary skill in the art and the various parts of equivalence.Those skilled in the art are noted that when not departing from spirit of the present invention or substantive characteristics, the present invention can in other forms, structure, layout, ratio, and to realize with other assembly, material and parts.When not departing from the scope of the invention and spirit, can other distortion be carried out here to disclosed embodiment and change.
Claims (8)
1. a twin-screw liquid pump, is characterized in that, described twin-screw liquid pump comprises housing, is provided with male rotor assembly, female rotor assembly in described housing;
The first end of described male rotor assembly is provided with the first gear, and the first end of female rotor assembly is provided with the second gear, and the first gear is meshed with the second gear; Second end of one of them rotor assembly connects driving arrangement;
Described male rotor assembly comprises male rotor main body, is arranged at male rotor main body two ends, the first joint be connected with male rotor main body, the second joint respectively;
Described female rotor assembly comprises female rotor main body, is arranged at female rotor main body two ends, the 3rd joint be connected with female rotor main body, the 4th joint respectively;
The circumference of the first joint, the second joint, the 3rd joint, the 4th joint is respectively equipped with Sealing, bearing part, and active chamber and bearing bore effectively separate by Sealing.
2. twin-screw liquid pump according to claim 1, is characterized in that:
Second end of described male rotor assembly is fixedly connected with described driving arrangement rotor.
3. twin-screw liquid pump according to claim 1, is characterized in that:
Described second joint is the part of male rotor assembly near male rotor second end, and the 4th joint is the part of female rotor assembly near female rotor assembly second end;
The bearing part that the circumference of described second joint, the 4th joint is arranged is respectively the second bearing pack, the 4th bearing pack, and the second bearing pack, the 4th bearing pack all at least comprise 2 bearings.
4. twin-screw liquid pump according to claim 1, is characterized in that:
Described housing comprises body, end body, and the first joint, male rotor main body, the 3rd joint, female rotor main body are arranged in body, and the major component of the second joint, the major component of the 4th joint are arranged in end body; First gear, the second gear are arranged in the first lid.
5. twin-screw liquid pump according to claim 4, is characterized in that:
Described body is furnished with the first lid, and described end body is furnished with the second lid.
6. twin-screw liquid pump according to claim 5, is characterized in that:
Described second joint stretches out the second lid, and the joint of the second joint and the second lid is provided with the 5th Sealing.
7. twin-screw liquid pump according to claim 1, is characterized in that:
Described male rotor assembly, female rotor assembly are twin-screw rotor assembly.
8. twin-screw liquid pump according to claim 7, is characterized in that:
The gear ratio of described female rotor assembly, male rotor assembly is 6:5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011706.2A CN104564657A (en) | 2015-01-09 | 2015-01-09 | Twin-screw liquid pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510011706.2A CN104564657A (en) | 2015-01-09 | 2015-01-09 | Twin-screw liquid pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104564657A true CN104564657A (en) | 2015-04-29 |
Family
ID=53081514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510011706.2A Pending CN104564657A (en) | 2015-01-09 | 2015-01-09 | Twin-screw liquid pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104564657A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487563A (en) * | 1982-09-17 | 1984-12-11 | Hitachi, Ltd. | Oil-free rotary displacement compressor |
| DE19728434A1 (en) * | 1997-07-03 | 1999-01-07 | Busch Sa Atel | Screw compressor for compressible media |
| CN2608725Y (en) * | 2003-03-17 | 2004-03-31 | 中国船舶重工集团公司第七一一研究所 | Water spray cooling hydrogen screw compressor |
| CN201080914Y (en) * | 2007-07-09 | 2008-07-02 | 刘彤贤 | Double screw rod vacuum fluid pump |
| CN201531418U (en) * | 2009-11-03 | 2010-07-21 | 辽宁天源泵业制造有限公司 | High-temperature wear-resisting double entry double-screw pump |
| CN102562590A (en) * | 2010-12-10 | 2012-07-11 | 株式会社神户制钢所 | Screw compressor |
| CN103388580A (en) * | 2013-08-02 | 2013-11-13 | 浙江大学 | Split type mechanical seal and double-screw pump with same |
| CN204436781U (en) * | 2015-01-09 | 2015-07-01 | 上海维尔泰克螺杆机械有限公司 | A kind of twin-screw liquid pump |
-
2015
- 2015-01-09 CN CN201510011706.2A patent/CN104564657A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4487563A (en) * | 1982-09-17 | 1984-12-11 | Hitachi, Ltd. | Oil-free rotary displacement compressor |
| DE19728434A1 (en) * | 1997-07-03 | 1999-01-07 | Busch Sa Atel | Screw compressor for compressible media |
| CN2608725Y (en) * | 2003-03-17 | 2004-03-31 | 中国船舶重工集团公司第七一一研究所 | Water spray cooling hydrogen screw compressor |
| CN201080914Y (en) * | 2007-07-09 | 2008-07-02 | 刘彤贤 | Double screw rod vacuum fluid pump |
| CN201531418U (en) * | 2009-11-03 | 2010-07-21 | 辽宁天源泵业制造有限公司 | High-temperature wear-resisting double entry double-screw pump |
| CN102562590A (en) * | 2010-12-10 | 2012-07-11 | 株式会社神户制钢所 | Screw compressor |
| CN103388580A (en) * | 2013-08-02 | 2013-11-13 | 浙江大学 | Split type mechanical seal and double-screw pump with same |
| CN204436781U (en) * | 2015-01-09 | 2015-07-01 | 上海维尔泰克螺杆机械有限公司 | A kind of twin-screw liquid pump |
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Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |