CN101016900A - Single-stage middle pressure screw bolt refrigerant compressor - Google Patents
Single-stage middle pressure screw bolt refrigerant compressor Download PDFInfo
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- CN101016900A CN101016900A CN 200710013602 CN200710013602A CN101016900A CN 101016900 A CN101016900 A CN 101016900A CN 200710013602 CN200710013602 CN 200710013602 CN 200710013602 A CN200710013602 A CN 200710013602A CN 101016900 A CN101016900 A CN 101016900A
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Abstract
The invention relates to a single-stage middle-pressure screw refrigerating compressor, comprising a body 3, a discharge base 6 connected at one end of the body 3, a cathode rotor 4 and an anode rotor 7, while the meshed rotors 4, 7, the body 3 and the discharge base 6 form a working chamber. An air adsorption base is integrated with the body to make structure compact, improve bearing ability or the like. The invention can work at 4.0MPa discharge pressure and 2.0MPa pressure difference with improve reliability and refrigerating efficiency, to be used in R410A, R134a and R22 high-temperature heat pump systems and air pressurizing machine.
Description
Technical field
The present invention relates to a kind of Spiral Lobe Refrigeration Compressor, press screw bolt refrigerant and air compressor in particularly a kind of single-stage.
Background technique
Because the defective of body and rotor design, existing single stage screw compressor be under 2.0MPa pressure reduction operating mode, exhaust pressure is 4.0MPa down during operation, and compressor reliability and refrigerating efficiency all reduce greatly, so application area is very limited.
On the other hand, press the suction end base of screw bolt refrigerant and air compressor and body to adopt split processing in the existing single-stage, be connected with seal ring by bolt, have manufacture, installation, maintenance inconvenience, sealing is relatively poor, defectives such as bearing capacity deficiency.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned existing refrigeration compressor, press Spiral Lobe Refrigeration Compressor and provide in a kind of single-stage.Technical problem to be solved is, by housing construction and molded lines of rotor are carried out design improvement, make compressor can be under 4.0MPa row pressure, 2.0MPa pressure reduction operating mode efficient, reliable operation, and and make the compressor volume littler, more compact structure.
The technical solution adopted for the present invention to solve the technical problems is with as follows:
Press Spiral Lobe Refrigeration Compressor in a kind of single-stage, comprise body and the exhausting end base that is connected body one end, also comprise female rotor and male rotor, it is characterized in that: intermeshing female rotor and male rotor and body, exhausting end base are formed active chamber.
Female rotor and male rotor bilateral asymmetric, form the tooth curve and be circular arc and envelope thereof, the gear ratio of negative and positive rotor is 8: 5, the negative and positive gap between rotor is 0.05mm, the ratio of negative and positive rotor tooth outside diameter circle is 1.0880, and the ratio of negative and positive rotor tooth Root diameter is 1.1375, and the ratio of negative and positive rotor pitch diameter is 1.6000, the ratio of negative and positive rotor torsion angle is 0.625, and the ratio of negative and positive rotor helical pitch is 1.6.
The cutter diameter of the cutter of female rotor and male rotor is 200mm, and the established angle of the cutter of female rotor and male rotor is 34.5 °.
Compared with the prior art the present invention has following good effect:
(1), the present invention can be 4.0MPa in exhaust pressure, moves under the 2.0MPa pressure reduction operating mode, compressor reliability and refrigerating efficiency all obviously improve.The application area of compressor is increased, can be widely used in R410A, R134a, R22 high temperature heat pump system and supercharging air machine.
(2), rotor composition tooth curve of the present invention is circular arc or arc envelope line, this makes the rotor flank of tooth change face seal into by linear sealing, can obviously improve sealing effect, help forming the hydrodynamic lubrication oil film and reduce tooth surface abrasion, Line of contact is short, engagement is steadily lowered the horizontal leakage by Line of contact, improves compressor efficiency.
(3), smooth connection between the bent flank of tooth of rotor of the present invention, do not have cusp on the shape line, be convenient to processing and detect, cleanliness is good, noise is low.
(4), rotor of the present invention adopts bilateral molded lines, root diameter is easy to adjust, moment is distributed rationally between rotor, vibrates little.
(5), than rationally, the bearing capacity height has less thermal distortion and bending deflection to rotor negative and positive root diameter of the present invention, can be used for the bigger operating mode of pressure reduction and pressure ratio than, torsion angle.
(6), suction end base and body one process, and makes more compact structure, bearing capacity is stronger, sealability is better, installs, safeguards more convenient.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is a negative and positive rotor end-face shape schematic representation of the present invention.
Embodiment elaborates to the present invention below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, the present invention mainly forms whole compressor by energy indicator 1, oily piston 2, body 3, female rotor 4, male rotor 7, energy adjustment guiding valve 5 and exhausting end base 6.Male rotor 7 is meshing with each other with female rotor 4, forms active chamber with body 3, exhausting end base 6.Be respectively equipped with intakeport and oilhole on the body 3, be compressed to behind the certain pressure and discharge by the relief opening of exhausting end base 6.
Female rotor 4 and male rotor 7 are connected by sliding bearing and body 3, exhausting end base 6 respectively, and female rotor 4, male rotor 7 are axially by thrust bearing and exhaust end body location.
Gas enters the active chamber of being made up of body 3, female rotor 4, male rotor 7, exhausting end base 6 from compressor, by controlling the turnover of oily piston 2 both sides lubricant oil, change the pressure of oily piston 2 both sides, driving energy adjustment guiding valve 5 respectively moves in rotor chamber, thereby change effective active length of rotor, realize the energy step-less adjustment of compressor.The energy position of energy indicator 1 indication compressor.Lubricant oil by the oil pump supercharging after bearing of compressor, axle envelope and equalizing piston 8 etc. locate to enter rotor chamber at different levels.Refrigerator oil in the rotor chamber with together discharged after the steam of suction mixes by cold compressor.
As shown in Figure 3, female rotor 4 of the present invention and male rotor 7 bilateral asymmetric formed the tooth curve and is circular arc or arc envelope line, and the number of teeth of female rotor is 8, and the number of teeth of male rotor is 5, and the negative and positive gap between rotor is 0.05mm.
The male rotor tip diameter is 125mm, and the female rotor tip diameter is 136mm.The male rotor root diameter is 80mm, and the female rotor root diameter is 91mm.The male rotor pitch diameter is 83.076mm, and the female rotor pitch diameter is 132.924mm.250 ° of male rotor torsion angles, 156.25 ° of female rotor torsion angles.The male rotor helical pitch is 180mm, and the female rotor helical pitch is 288mm.
The cutter diameter of the cutter of female rotor 4 and male rotor 7 is 200mm, and the established angle of the cutter of female rotor 4 and male rotor 7 is 34.5 °.
Claims (3)
1, presses Spiral Lobe Refrigeration Compressor in a kind of single-stage, comprise body (3) and be connected the exhausting end base (6) of body (3) one ends, also comprise female rotor (4) and male rotor (7), it is characterized in that: intermeshing female rotor (4) and male rotor (7) are formed active chamber with body (3), exhausting end base (6).
2, press Spiral Lobe Refrigeration Compressor in the single-stage as claimed in claim 1, it is characterized in that: female rotor (4) and male rotor (7) bilateral asymmetric, form the tooth curve and be circular arc and envelope thereof, the gear ratio of negative and positive rotor is 8: 5, the negative and positive gap between rotor is 0.05mm, the ratio of negative and positive rotor tooth outside diameter circle is 1.0880, the ratio of negative and positive rotor tooth Root diameter is 1.1375, the ratio of negative and positive rotor pitch diameter is 1.6000, the ratio of negative and positive rotor torsion angle is 0.625, and the ratio of negative and positive rotor helical pitch is 1.6.
3, press Spiral Lobe Refrigeration Compressor in the single-stage as claimed in claim 1 or 2, it is characterized in that: the cutter diameter of the cutter of female rotor (4) and male rotor (7) is 200mm, and the established angle of the cutter of female rotor (4) and male rotor (7) is 34.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013602 CN101016900A (en) | 2007-02-07 | 2007-02-07 | Single-stage middle pressure screw bolt refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710013602 CN101016900A (en) | 2007-02-07 | 2007-02-07 | Single-stage middle pressure screw bolt refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101016900A true CN101016900A (en) | 2007-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710013602 Pending CN101016900A (en) | 2007-02-07 | 2007-02-07 | Single-stage middle pressure screw bolt refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101016900A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062092A (en) * | 2011-01-25 | 2011-05-18 | 深圳振华亚普精密机械有限公司 | Single-stage medium-pressure single-screw air compressor |
-
2007
- 2007-02-07 CN CN 200710013602 patent/CN101016900A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062092A (en) * | 2011-01-25 | 2011-05-18 | 深圳振华亚普精密机械有限公司 | Single-stage medium-pressure single-screw air compressor |
| CN102062092B (en) * | 2011-01-25 | 2013-04-17 | 深圳振华亚普精密机械有限公司 | Single-stage medium-pressure single-screw air compressor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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