CN104454537A - Screw-rod compressor - Google Patents
Screw-rod compressor Download PDFInfo
- Publication number
- CN104454537A CN104454537A CN201410792540.8A CN201410792540A CN104454537A CN 104454537 A CN104454537 A CN 104454537A CN 201410792540 A CN201410792540 A CN 201410792540A CN 104454537 A CN104454537 A CN 104454537A
- Authority
- CN
- China
- Prior art keywords
- body shell
- variable
- frequency motor
- compressor
- permanent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001360 synchronised effect Effects 0.000 claims abstract description 24
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/10—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member
- F04C18/107—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention discloses a screw-rod compressor. The screw-rod compressor comprises a compressor body shell, wherein the two ends of the compressor body shell are provided with an air suctioning cover and an air discharging cover; the compressor body shell is internally provided with a motor and a screw rod; the space in the air suctioning cover is communicated with the space in the air discharging cover by the space between the motor and the screw rod and the compressor body shell; the motor is a permanent-magnetic synchronous variable-frequency motor; the permanent-magnetic synchronous variable-frequency motor comprises a stator and a rotor; the stator is fixedly connected with the compressor body shell; the rotor is arranged in the stator; the screw rod comprises a coaxial extending rod part which is fixedly connected at the central position of the rotor. The screw-rod compressor also comprises a variable-frequency motor control system which is electrically connected with the permanent-magnetic synchronous variable-frequency motor. The screw-rod compressor disclosed by the invention has the beneficial effects that the electric-power waste can be reduced, and high efficiency and energy conservation of operation of the screw-rod compressor are realized; and simultaneously, the structure is compact and the transmission efficiency is high.
Description
Technical field
The present invention relates to compressor apparatus field, particularly relate to helical-lobe compressor.
Background technique
At present, screw type refrigerating compressor major part is fixed rotating speed, general employing energy guiding valve controlling mechanism carries out energy adjustment, in the process of adjusting energy change, the change of power of motor not with load be changing into direct ratio, motor is inefficiency when low load, and this can reduce cooling system efficiency; Simultaneously, fraction screw type refrigerating compressor adopts converter technique, is coordinated with frequency variator by phase asynchronous variable-frequency motor, but this needs independent installation frequency conversion electrical control cabinet, increase the space of unit, and there is the problems such as volume is large, efficiency is low in existing threephase asynchronous machine.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of energy-efficient and novel helical-lobe compressor of miniaturization for existing helical-lobe compressor Problems existing.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of helical-lobe compressor, comprise body shell, the two ends of described body shell are provided with air-breathing lid and lid of giving vent to anger, motor and screw rod is provided with in body shell, space in described air-breathing lid is communicated with the described space in covering of giving vent to anger with the space between body shell through described motor and described screw rod, described motor is permanent-magnet synchronous variable-frequency motor, permanent-magnet synchronous variable-frequency motor comprises a stator and a rotor, described stator is fixedly connected with body shell, described rotor is installed in the stator, described screw rod comprises a coaxial extension rod portion, this extension rod portion is fixedly connected on the center of rotor, also comprise variable-frequency motor control system, this variable-frequency motor control system is electrically connected with permanent-magnet synchronous variable-frequency motor.
Beneficial effect of the present invention is: permanent-magnet synchronous variable-frequency motor is compared with phase asynchronous frequency-changeable compressor, in electric efficiency, the aspects such as middle and slow speed of revolution torque characteristics and mechanical structure have obvious advantage, and it is little also to have volume, lightweight advantage, and this device adopts permanent-magnet synchronous variable-frequency motor as compression main frame, permanent-magnet synchronous variable-frequency motor can as requested by control any speed change in adjustable extent of variable-frequency motor control system, compressor refrigerating capacity is regulated according to the refrigerating capacity of actual demand, minimization waste, realize the efficient and energy-conservation of helical-lobe compressor operation, meanwhile, frequency-changing control system is directly installed on compressor body, compact structure.
Accompanying drawing explanation
Fig. 1 is the surface structure schematic diagram of the helical-lobe compressor of the embodiment of the present invention.
Fig. 2 is the cross-sectional view of the helical-lobe compressor of the embodiment of the present invention.
Fig. 3 is the power consumption comparison diagram of helical-lobe compressor relative to existing equipment of the embodiment of the present invention.
Label declaration: 1, body shell; 11, electric box; 2, air-breathing lid; 21, Aspirating valves assembly; 3, to give vent to anger lid; 31, exhaust valve component; 32, oil separator; 4, motor; 41, stator; 42, rotor; 5, screw rod; 51, extension rod portion; 6, variable-frequency motor control system.
Embodiment
By describing technology contents of the present invention in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with mode of execution.
The design of most critical of the present invention is: adopt variable-frequency motor to coordinate variable-frequency motor control system to control compressor operating, screw rod is directly installed in variable-frequency motor, simplifies the structure, improves working efficiency.
Refer to Fig. 1 and Fig. 2, a kind of helical-lobe compressor, comprise body shell 1, the two ends of described body shell 1 are provided with air-breathing lid 2 and lid 3 of giving vent to anger, motor 4 and screw rod 5 is provided with in body shell 1, space in described air-breathing lid 2 is communicated with described space of giving vent to anger in lid 3 with the space between body shell through described motor 4 and described screw rod 5, described motor 4 is permanent-magnet synchronous variable-frequency motor, permanent-magnet synchronous variable-frequency motor comprises stator 41 and a rotor 42, described stator 41 is fixedly connected with body shell 1, described rotor 42 is arranged in stator 41, described screw rod 5 comprises a coaxial extension rod portion 51, this extension rod portion 51 is fixedly connected on the center of rotor 42, also comprise variable-frequency motor control system 6, this variable-frequency motor control system 6 is electrically connected with permanent-magnet synchronous variable-frequency motor.
From foregoing description, beneficial effect of the present invention is: permanent-magnet synchronous variable-frequency motor, compared with phase asynchronous frequency-changeable compressor, has obvious advantage, specifically can refer to accompanying drawing 3 in electric efficiency, middle and slow speed of revolution torque characteristics and mechanical structure etc.Simultaneously, permanent-magnet synchronous variable-frequency motor also has little, the lightweight advantage of volume, and this device adopts permanent-magnet synchronous variable-frequency motor as compression main frame, permanent-magnet synchronous variable-frequency motor can as requested by control any speed change in adjustable extent of variable-frequency motor control system, compressor refrigerating capacity is regulated according to the refrigerating capacity of actual demand, minimization waste, realizes the efficient and energy-conservation of helical-lobe compressor operation; Meanwhile, frequency-changing control system is directly installed on compressor body, compact structure.
Further, described body shell 1 is provided with electric box 11, described variable-frequency motor control system 6 is arranged in described electric box 11, variable-frequency motor control system 6 comprises frequency variator and compressor controller, described compressor controller be located at described in give vent to anger temperature transducer in lid 3 and pressure transducer be electrically connected, compressor controller is electrically connected with described frequency variator, and frequency variator is electrically connected with described permanent-magnet synchronous variable-frequency motor.
Seen from the above description, said structure makes this device very high integrity, frequency variator and compressor controller are arranged in the electric box of fuselage, use flexibly, external circuit is simple, motor signal transmission interference is little, in manufacture process, the fine setting of converter parameter is all carried out according to the every compressor of small difference of mechanical part working process, make compressor operating reliable and stable, simultaneously without the need to making frequency conversion tank separately, saving and taking up an area space.
Further, described air-breathing lid 2 is provided with Aspirating valves assembly 21, and described Aspirating valves assembly 21 is communicated with the inside of air-breathing lid 2.
Further, described in lid 3 of giving vent to anger be provided with exhaust valve component 31, described exhaust valve component 31 is communicated with the inside of exhaust cap 3.
Further, give vent to anger described in lid 3 and be provided with oil separator 32.
Please refer to Fig. 1 and Fig. 2, embodiments of the invention one are: a kind of helical-lobe compressor, comprise body shell 1, are provided with motor 4 and screw rod 5 in body shell 1; The two ends of body shell 1 are provided with air-breathing lid 2 and lid 3 of giving vent to anger, and air-breathing lid 2 is provided with Aspirating valves assembly 21, and Aspirating valves assembly 21 is communicated with the inside of air-breathing lid 2; Lid 3 of giving vent to anger is provided with exhaust valve component 31, and exhaust valve component 31 is communicated with the inside of exhaust cap 3, is provided with oil separator 32 in lid 3 of giving vent to anger; Space in air-breathing lid 2 is communicated with described space of giving vent to anger in lid 3 with the space between body shell through described motor 4 and described screw rod 5, motor 4 is installed on the side near air-breathing lid 2 on body shell 1, and screw rod 5 is located at the side near lid 3 of giving vent to anger on body shell 1.
Motor 4 is permanent-magnet synchronous variable-frequency motor, permanent-magnet synchronous variable-frequency motor comprises stator 41 and a rotor 42, and stator 41 is fixedly connected with body shell 1, and rotor 42 is arranged in stator 41, screw rod 5 comprises a coaxial extension rod portion 51, and this extension rod portion 51 is fixedly connected on the center of rotor 42.
Also comprise variable-frequency motor control system 6, variable-frequency motor control system 6 is arranged on body shell 1, body shell 1 is provided with an electric box 11 for this variable-frequency motor control system 6 of accommodation, variable-frequency motor control system 6 comprises frequency variator and compressor controller, described compressor controller be located at described in give vent to anger temperature transducer in lid 3 and pressure transducer be electrically connected, compressor controller is electrically connected with described frequency variator, and frequency variator is electrically connected with described permanent-magnet synchronous variable-frequency motor.
In sum, helical-lobe compressor provided by the invention is of compact construction and more high workload efficiency, can save the electric energy of more than 30% in the refrigerating capacity of 50% relative to existing equipment, under the operating conditions of full working scope, also on average can save the electric energy of more than 15%, energy-saving effect is remarkable.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing specification of the present invention 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 invention.
Claims (5)
1. a helical-lobe compressor, comprise body shell, the two ends of described body shell are provided with air-breathing lid and lid of giving vent to anger, motor and screw rod is provided with in body shell, space in described air-breathing lid is communicated with the described space in covering of giving vent to anger with the space between body shell through described motor and described screw rod, it is characterized in that, described motor is permanent-magnet synchronous variable-frequency motor, permanent-magnet synchronous variable-frequency motor comprises a stator and a rotor, described stator is fixedly connected with body shell, described rotor is installed in the stator, described screw rod comprises a coaxial extension rod portion, this extension rod portion is fixedly connected on the center of rotor, also comprise variable-frequency motor control system, this variable-frequency motor control system is electrically connected with permanent-magnet synchronous variable-frequency motor.
2. helical-lobe compressor according to claim 1, it is characterized in that, described body shell is provided with electric box, described variable-frequency motor control system is arranged in described electric box, variable-frequency motor control system comprises frequency variator and compressor controller, described compressor controller be located at described in the give vent to anger temperature transducer in covering and pressure transducer be electrically connected, compressor controller is electrically connected with described frequency variator, and frequency variator is electrically connected with described permanent-magnet synchronous variable-frequency motor.
3. helical-lobe compressor according to claim 1, is characterized in that, described air-breathing covers and is provided with Aspirating valves assembly, and described Aspirating valves assembly is communicated with the inside of air-breathing lid.
4. helical-lobe compressor according to claim 1, is characterized in that, described in give vent to anger to cover and be provided with exhaust valve component, described exhaust valve component is communicated with the inside of exhaust cap.
5. helical-lobe compressor according to claim 1, is characterized in that, described in give vent to anger lid in be provided with oil separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792540.8A CN104454537A (en) | 2014-12-18 | 2014-12-18 | Screw-rod compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792540.8A CN104454537A (en) | 2014-12-18 | 2014-12-18 | Screw-rod compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104454537A true CN104454537A (en) | 2015-03-25 |
Family
ID=52901126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792540.8A Pending CN104454537A (en) | 2014-12-18 | 2014-12-18 | Screw-rod compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454537A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108455480A (en) * | 2018-01-31 | 2018-08-28 | 湖北环电磁装备工程技术有限公司 | A kind of auto repair lifting machine that no frame permanent magnet synchronous motor directly drives |
| CN109072914A (en) * | 2016-04-06 | 2018-12-21 | 比泽尔制冷设备有限公司 | Compressor unit and method for running compressor unit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044606A (en) * | 2003-11-10 | 2004-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Oil-free screw compressor |
| US20050163623A1 (en) * | 2004-01-26 | 2005-07-28 | Denso Corporation | Air supply apparatus for stable air supply |
| CN101086258A (en) * | 2006-06-09 | 2007-12-12 | 上海汉钟精机股份有限公司 | Frequency-variable screw type refrigerating compressor |
| CN101846075A (en) * | 2009-03-25 | 2010-09-29 | 日立空调·家用电器株式会社 | Screw compressor |
| CN102094835A (en) * | 2009-12-14 | 2011-06-15 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN103270306A (en) * | 2010-07-20 | 2013-08-28 | 特灵国际有限公司 | Variable capacity screw compressor and method |
| CN104061161A (en) * | 2014-05-30 | 2014-09-24 | 高锦启 | Single screw air compressor |
| CN204344464U (en) * | 2014-12-18 | 2015-05-20 | 福建雪人股份有限公司 | Helical-lobe compressor |
-
2014
- 2014-12-18 CN CN201410792540.8A patent/CN104454537A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044606A (en) * | 2003-11-10 | 2004-02-12 | Hitachi Industrial Equipment Systems Co Ltd | Oil-free screw compressor |
| US20050163623A1 (en) * | 2004-01-26 | 2005-07-28 | Denso Corporation | Air supply apparatus for stable air supply |
| CN101086258A (en) * | 2006-06-09 | 2007-12-12 | 上海汉钟精机股份有限公司 | Frequency-variable screw type refrigerating compressor |
| CN101846075A (en) * | 2009-03-25 | 2010-09-29 | 日立空调·家用电器株式会社 | Screw compressor |
| CN102094835A (en) * | 2009-12-14 | 2011-06-15 | 上海汉钟精机股份有限公司 | Screw compressor |
| CN103270306A (en) * | 2010-07-20 | 2013-08-28 | 特灵国际有限公司 | Variable capacity screw compressor and method |
| CN104061161A (en) * | 2014-05-30 | 2014-09-24 | 高锦启 | Single screw air compressor |
| CN204344464U (en) * | 2014-12-18 | 2015-05-20 | 福建雪人股份有限公司 | Helical-lobe compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072914A (en) * | 2016-04-06 | 2018-12-21 | 比泽尔制冷设备有限公司 | Compressor unit and method for running compressor unit |
| CN108455480A (en) * | 2018-01-31 | 2018-08-28 | 湖北环电磁装备工程技术有限公司 | A kind of auto repair lifting machine that no frame permanent magnet synchronous motor directly drives |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |
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| RJ01 | Rejection of invention patent application after publication |