CN204344464U - Helical-lobe compressor - Google Patents
Helical-lobe compressor Download PDFInfo
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- CN204344464U CN204344464U CN201420810881.9U CN201420810881U CN204344464U CN 204344464 U CN204344464 U CN 204344464U CN 201420810881 U CN201420810881 U CN 201420810881U CN 204344464 U CN204344464 U CN 204344464U
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- frequency motor
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- anger
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Abstract
The utility model discloses 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.The beneficial effects of the utility model are: can minimization waste, and what realize that helical-lobe compressor runs is efficient and energy-conservation; Meanwhile, compact structure, transmission efficiency are high.
Description
Technical field
The utility model relates to compressor apparatus field, particularly relates 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.
Model utility content
Technical problem to be solved in the utility model 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 adopted in the utility model 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.
Further, 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.
Further, 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.
Further, 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.
Further, give vent to anger described in covering and be provided with oil separator.
The beneficial effects of the utility model are: 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 utility model embodiment.
Fig. 2 is the cross-sectional view of the helical-lobe compressor of the utility model embodiment.
Fig. 3 is the power consumption comparison diagram of helical-lobe compressor relative to existing equipment of the utility model embodiment.
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 utility model 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 the utility model most critical 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, the beneficial effects of the utility model are: permanent-magnet synchronous variable-frequency motor is compared with phase asynchronous frequency-changeable compressor, in electric efficiency, middle and slow speed of revolution torque characteristics and mechanical structure etc., there is obvious advantage, specifically can refer to accompanying drawing 3.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, embodiment one of the present utility model is: a kind of helical-lobe compressor, comprises body shell 1, is 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, the helical-lobe compressor that the utility model provides is of compact construction and more high workload efficiency, the electric energy of more than 30% can be saved 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 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 (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 |
|---|---|---|---|
| CN201420810881.9U CN204344464U (en) | 2014-12-18 | 2014-12-18 | Helical-lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420810881.9U CN204344464U (en) | 2014-12-18 | 2014-12-18 | Helical-lobe compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344464U true CN204344464U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420810881.9U Active CN204344464U (en) | 2014-12-18 | 2014-12-18 | Helical-lobe compressor |
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| Country | Link |
|---|---|
| CN (1) | CN204344464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454537A (en) * | 2014-12-18 | 2015-03-25 | 福建雪人股份有限公司 | Screw-rod compressor |
-
2014
- 2014-12-18 CN CN201420810881.9U patent/CN204344464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454537A (en) * | 2014-12-18 | 2015-03-25 | 福建雪人股份有限公司 | Screw-rod compressor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |