CN204344462U - A kind of semi-enclosed single machine two-stage screw bolt compressor - Google Patents
A kind of semi-enclosed single machine two-stage screw bolt compressor Download PDFInfo
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- CN204344462U CN204344462U CN201420777648.5U CN201420777648U CN204344462U CN 204344462 U CN204344462 U CN 204344462U CN 201420777648 U CN201420777648 U CN 201420777648U CN 204344462 U CN204344462 U CN 204344462U
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Abstract
The utility model relates to a kind of semi-enclosed single machine two-stage screw bolt compressor, comprise housing, control system, the first rotor, coupling and the second rotor, described control system, the first rotor, coupling and the second rotor are arranged in housing, one end of described housing is provided with suction port, the other end of described housing is provided with relief opening, described the first rotor, coupling and the second rotor set gradually along suction port to relief opening direction, described the first rotor comprises the first female rotor and the first male rotor, described first female rotor engages with the first male rotor, described second rotor comprises the second female rotor and the second male rotor, described second female rotor engages with the second male rotor, described first male rotor is connected by coupling with the second male rotor, described control system is electrically connected with the first rotor and drives the first rotor to rotate.Semi-enclosed single machine two-stage screw bolt compressor of the present utility model has the advantages such as compression efficiency is high, energy adjustment is accurate.
Description
Technical field
The utility model relates to refrigerant compression equipment, particularly the semi-enclosed single machine two-stage screw bolt compressor of one.
Background technique
Helical-lobe compressor utilizes screw shaped rotor compress do rotation motion in cylinder and carry the rotary compressor of gas.The core component of helical-lobe compressor is compressor host, it is the one in positive displacement compressor, the compression of air is the volume-variation of the teeth groove of the negative and positive rotor by being installed on engagement parallel to each other in casing and reaches, rotor is secondary to rotate and makes the gas between rotor teeth groove constantly produce periodic volume-variation and along rotor axis in the casing of its precision-fit, push discharge side to by suction side, complete suction, compression, exhaust three working procedure.Existing helical-lobe compressor comprises opening type single machine two-stage screw bolt compressor and semi-enclosed Singe stage screw compressor.
Opening type single machine two-stage screw bolt compressor of the prior art, between its fixed block and movement parts, must shaft seal be set, and its shaft seal structure exists the shortcoming easily occurring to leak, because current most of refrigeration agent is that toxic substance maybe can damage atmospheric ozone layer, serious pollution is produced to environment; , there is inefficient problem in its mode adopting motor to be connected by coupling and compressor simultaneously.
The semi-enclosed helical-lobe compressor of prior art only has single-stage, and when the compression ratio of single-stage semi-hermetic screw compressor is more than more than 12, then the efficiency of compressor is very low.
At present, Spiral Lobe Refrigeration Compressor adopts freon as refrigeration working medium mostly, and be reply Global Greenhouse Effect, reduce the destruction of atmospheric ozone layer, people just actively find environmentally friendly working medium and come replacement fluorine Leon.Ammonia is as a kind of natural medium, its unit volume refrigerating capacity is large, refrigerating efficiency is high, cheap, the latent energy value that damages the ozone layer (ODP) and chamber effect potential value (WGP) value are 0, but ammonia has intense stimulus, harmfulness is had to human body, tool is flammable, meets the danger that naked light has blast, therefore requires that compressor has good sealing.Ammonia has corrosive action to copper and alloy thereof, therefore can not use copper and copper alloy in the refrigeration system of ammonia.Coil due to motor is all form with copper wire winding usually, and ammonia has corrosive action to copper, therefore ammonia seldom as refrigerant applications in close or semi-enclosed refrigeration plant in.Open pattern when motor and compressor adopt, be sealed with higher requirement to helical-lobe compressor, the use of coupling also can reduce the transmission efficiency of motor, runs noise also larger simultaneously.
When most screw type refrigerating compressor adopts ammonia as refrigeration agent, be fixed rotating speed, do not carry out energy adjustment by speed change, in Large Scale Ammonia Spiral Lobe Refrigeration Compressor, the general energy guiding valve controlling mechanism that adopts carries out energy adjustment, but the regulation range of guiding valve is generally more than 10%, and in the process of adjusting energy change, the change of power of motor not with load be changing into direct ratio, make motor inefficiency low year time, and then reduce cooling system efficiency.
Model utility content
Technical problem to be solved in the utility model is: provide the semi-enclosed single machine two-stage screw bolt compressor that a kind of refrigerating efficiency is high.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of semi-enclosed single machine two-stage screw bolt compressor, comprise housing, control system, the first rotor, coupling and the second rotor, described control system, the first rotor, coupling and the second rotor are arranged in housing, one end of described housing is provided with suction port, the other end of described housing is provided with relief opening, described the first rotor, coupling and the second rotor set gradually along suction port to relief opening direction, described the first rotor comprises the first female rotor and the first male rotor, described first female rotor engages with the first male rotor, described second rotor comprises the second female rotor and the second male rotor, described second female rotor engages with the second male rotor, described first male rotor is connected by coupling with the second male rotor, described control system is electrically connected with the first rotor and drives the first rotor to rotate.
Further, the output terminal of described control system is provided with controlling device, and described controlling device comprises regulating slide valve and piston, and described piston is connected with regulating slide valve by piston rod.
Further, described control system comprises temperature transducer, pressure transducer, controller, frequency variator and motor, and described temperature transducer and pressure transducer are electrically connected with controller respectively, and described controller is electrically connected with motor by frequency variator.
Further, the coil of described motor is aluminium matter motor coil or copper motor coil.
Further, the output terminal of described motor is connected with the first male rotor.
Further, described control system comprises motor, and described housing comprises electric machine casing, and described electric machine casing is provided with pouring orifice, and described motor is positioned at electric machine casing, and the output terminal of described motor is corresponding with suction port to be arranged.
The beneficial effects of the utility model are:
(1) semi-enclosed single machine two-stage screw bolt compressor of the present utility model is by set-up of control system in internal body, solves the problem that opening type single machine two-stage screw bolt compressor exists shaft sealing leakage;
(2) design the first rotor and the second rotor carry out Two-stage Compression to gas, and when compression ratio reaches more than 40, still can keep high efficiency, solving single stage compressor cannot cannot keep high efficiency problem when high compression ratio.
Accompanying drawing explanation
Fig. 1 is the semi-enclosed single machine two-stage screw bolt compressor longitudinal sectional view of the utility model embodiment;
Fig. 2 is the semi-enclosed single machine two-stage screw bolt compressor transverse sectional view of the utility model embodiment;
Fig. 3 is the structure compositional block diagram of the control system of the semi-enclosed single machine two-stage screw bolt compressor of the utility model embodiment.
Label declaration:
1, housing; 2, control system; 21, motor; 211, pouring orifice; 212, electric machine casing; 31, the first male rotor; 32, the first female rotor; 4, coupling; 51, the second male rotor; 52, the second female rotor; 6, suction port; 7, relief opening; 81, regulating slide valve; 82, piston.
Embodiment
By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained below in conjunction with mode of execution.
The design of the utility model most critical is: by control system is built-in and two-spool design, thus solves the problem of the shaft sealing leakage of prior art opening type single machine two-stage screw bolt compressor and the low problem of single stage compressor compression efficiency.
Please refer to Fig. 1, Fig. 2 and Fig. 3, semi-enclosed single machine two-stage screw bolt compressor of the present utility model, comprise housing 1, control system 2, the first rotor, coupling 4 and the second rotor, described control system 2, the first rotor, coupling 4 and the second rotor are arranged in housing 1, one end of described housing 1 is provided with suction port 6, the other end of described housing 1 is provided with relief opening 7, described the first rotor, coupling 4 and the second rotor set gradually along suction port 6 to relief opening 7 direction, described the first rotor comprises the first female rotor 32 and the first male rotor 31, described first female rotor 32 engages with the first male rotor 31, described second rotor comprises the second female rotor 52 and the second male rotor 51, described second female rotor 52 engages with the second male rotor 51, described first male rotor 31 is connected by coupling 4 with the second male rotor 51, described control system 2 is electrically connected with the first rotor and drives the first rotor to rotate.
From foregoing description, the beneficial effects of the utility model are:
(1) semi-enclosed single machine two-stage screw bolt compressor of the present utility model is by set-up of control system in internal body, solves the problem that opening type single machine two-stage screw bolt compressor exists shaft sealing leakage;
(2) design the first rotor and the second rotor carry out Two-stage Compression to gas, and when compression ratio reaches more than 40, still can keep high efficiency, solving single stage compressor cannot cannot keep high efficiency problem when high compression ratio.
Further, the output terminal of described control system 2 is provided with controlling device, and described controlling device comprises regulating slide valve 81 and piston 82, and described piston 82 is connected with regulating slide valve 81 by piston rod.Described control system 2 comprises temperature transducer, pressure transducer, controller, frequency variator and motor 21, and described temperature transducer and pressure transducer are electrically connected with controller respectively, and described controller is electrically connected with motor 21 by frequency variator.
Seen from the above description, the control system of the present embodiment comprises frequency variator, can be realized the first rotor and bitrochanteric speed Control by frequency variator, by the control system of the present embodiment and being equipped with of controlling device, make the fine degree of regulating slide valve to the control of displacement higher, also solve in the process adopting separately regulating slide valve to change at adjusting energy simultaneously, because the change of power of motor is not directly proportional to the change of load, make motor inefficiency low year time, cause the inefficient problem of cooling system.
Further, the coil of described motor 21 is aluminium matter motor coil or copper motor coil.
Seen from the above description, the coil of motor can be aluminium matter motor coil, also can be copper motor coil, when adopting ammonia as refrigeration working medium, because ammonia has corrosive action to copper, therefore needs to adopt aluminium matter motor coil.
Further, the output terminal of described motor 21 is connected with the first male rotor 31.
Further, described control system 2 comprises motor 21, and described housing comprises electric machine casing 212, and described electric machine casing 212 is provided with pouring orifice 211, and described motor 21 is positioned at electric machine casing 212, and the output terminal of described motor 21 is corresponding with suction port 6 to be arranged.
Embodiment one of the present utility model is:
The semi-enclosed single machine two-stage screw bolt compressor of the present embodiment, comprise housing, control system, the first rotor, coupling and the second rotor, described control system, the first rotor, coupling and the second rotor are arranged in housing, one end of described housing is provided with suction port, the other end of described housing is provided with relief opening, described the first rotor, coupling and the second rotor set gradually along suction port to relief opening direction, described the first rotor comprises the first female rotor and the first male rotor, described first female rotor engages with the first male rotor, described second rotor comprises the second female rotor and the second male rotor, described second female rotor engages with the second male rotor, described first male rotor is connected by coupling with the second male rotor, described control system is electrically connected with the first rotor and drives the first rotor to rotate.The output terminal of described control system is provided with controlling device, and described controlling device comprises regulating slide valve and piston, and described piston is connected with regulating slide valve by piston rod.Described control system comprises temperature transducer, pressure transducer, controller, frequency variator and motor, and described temperature transducer and pressure transducer are electrically connected with controller respectively, and described controller is electrically connected with motor by frequency variator.The coil of described motor is aluminium matter motor coil.The output terminal of described motor is connected with the first male rotor.Described housing comprises electric machine casing, and described electric machine casing is provided with pouring orifice, and described motor is positioned at electric machine casing, and the output terminal of described motor is corresponding with suction port to be arranged.
In sum, the semi-enclosed single machine two-stage screw bolt compressor that the utility model provides solves the problem that opening type single machine two-stage screw bolt compressor exists shaft sealing leakage; When compression ratio reaches more than 40, still can keep high efficiency, solving single stage compressor cannot cannot keep high efficiency problem when high compression ratio.
The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a semi-enclosed single machine two-stage screw bolt compressor, it is characterized in that, comprise housing, control system, the first rotor, coupling and the second rotor, described control system, the first rotor, coupling and the second rotor are arranged in housing, one end of described housing is provided with suction port, the other end of described housing is provided with relief opening, described the first rotor, coupling and the second rotor set gradually along suction port to relief opening direction, described the first rotor comprises the first female rotor and the first male rotor, described first female rotor engages with the first male rotor, described second rotor comprises the second female rotor and the second male rotor, described second female rotor engages with the second male rotor, described first male rotor is connected by coupling with the second male rotor, described control system is electrically connected with the first rotor and drives the first rotor to rotate.
2. semi-enclosed single machine two-stage screw bolt compressor according to claim 1, it is characterized in that, the output terminal of described control system is provided with controlling device, and described controlling device comprises regulating slide valve and piston, and described piston is connected with regulating slide valve by piston rod.
3. semi-enclosed single machine two-stage screw bolt compressor according to claim 1 and 2, it is characterized in that, described control system comprises temperature transducer, pressure transducer, controller, frequency variator and motor, described temperature transducer and pressure transducer are electrically connected with controller respectively, and described controller is electrically connected with motor by frequency variator.
4. semi-enclosed single machine two-stage screw bolt compressor according to claim 3, is characterized in that, the coil of described motor is aluminium matter motor coil or copper motor coil.
5. semi-enclosed single machine two-stage screw bolt compressor according to claim 3, is characterized in that, the output terminal of described motor is connected with the first male rotor.
6. semi-enclosed single machine two-stage screw bolt compressor according to claim 1, it is characterized in that, described control system comprises motor, described housing comprises electric machine casing, described electric machine casing is provided with pouring orifice, described motor is positioned at electric machine casing, and the output terminal of described motor is corresponding with suction port to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777648.5U CN204344462U (en) | 2014-12-10 | 2014-12-10 | A kind of semi-enclosed single machine two-stage screw bolt compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420777648.5U CN204344462U (en) | 2014-12-10 | 2014-12-10 | A kind of semi-enclosed single machine two-stage screw bolt compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344462U true CN204344462U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420777648.5U Withdrawn - After Issue CN204344462U (en) | 2014-12-10 | 2014-12-10 | A kind of semi-enclosed single machine two-stage screw bolt compressor |
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| CN (1) | CN204344462U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454533A (en) * | 2014-12-10 | 2015-03-25 | 福建雪人股份有限公司 | Semi-closed single-machine double-stage screw compressor |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN108194360A (en) * | 2018-03-05 | 2018-06-22 | 珠海格力电器股份有限公司 | Compressor and air-conditioner set |
-
2014
- 2014-12-10 CN CN201420777648.5U patent/CN204344462U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454533A (en) * | 2014-12-10 | 2015-03-25 | 福建雪人股份有限公司 | Semi-closed single-machine double-stage screw compressor |
| CN105715548A (en) * | 2016-04-01 | 2016-06-29 | 浙江开山凯文螺杆机械有限公司 | Two-grade screw rod compressor with flexible slide valve |
| CN108194360A (en) * | 2018-03-05 | 2018-06-22 | 珠海格力电器股份有限公司 | Compressor and air-conditioner set |
| CN108194360B (en) * | 2018-03-05 | 2023-08-25 | 珠海格力电器股份有限公司 | Compressor and air conditioning unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150520 Effective date of abandoning: 20171117 |
|
| AV01 | Patent right actively abandoned |