CN210599420U - Two-stage vertical double-motor type permanent magnet variable frequency compressor - Google Patents

Two-stage vertical double-motor type permanent magnet variable frequency compressor Download PDF

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Publication number
CN210599420U
CN210599420U CN201921375892.8U CN201921375892U CN210599420U CN 210599420 U CN210599420 U CN 210599420U CN 201921375892 U CN201921375892 U CN 201921375892U CN 210599420 U CN210599420 U CN 210599420U
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China
Prior art keywords
permanent magnet
oil
magnet motor
vertical
motor
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Active
Application number
CN201921375892.8U
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Chinese (zh)
Inventor
周艳辉
刘庆卫
叶耀全
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Guangdong Baldor Tech Co ltd
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Guangdong Baldor Tech Co ltd
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Priority to CN201921375892.8U priority Critical patent/CN210599420U/en
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Abstract

The utility model discloses a two-stage vertical double-motor permanent magnet variable frequency compressor, which comprises a box body, and a first-stage permanent magnet motor and a second-stage permanent magnet motor which are arranged in the box body; the primary permanent magnet motor and the secondary permanent magnet motor are positioned on the left side and the right side of the vertical main machine, and a main air inlet and a main oil outlet are formed in the vertical main machine; a motor oil return pipe is respectively connected between the main oil inlet and the primary permanent magnet motor and between the main oil inlet and the secondary permanent magnet motor; an oil grid and an oil-gas cooler are further arranged in the box body, and the main air inlet, the main air outlet and the oil-gas cooler are arranged in the box body; the primary permanent magnet motor and the secondary permanent magnet motor are vertically installed, the vertical main machine is matched with the shaft seal oil return pipe connected between the vertical main machine and the primary permanent magnet motor and the secondary permanent magnet motor, and the main oil return pipe connected between the vertical main machine and the oil grid, so that the structure is more compact, the space is saved, the oil pipeline is reduced, the resistance of the oil pipeline is shortened, and the leakage risk of the oil pipeline is reduced.

Description

Two-stage vertical double-motor type permanent magnet variable frequency compressor
Technical Field
The utility model relates to a screw compressor technical field, especially a vertical bi-motor formula permanent magnetism variable frequency compressor of two-stage.
Background
The screw compressor handpiece is usually of a horizontal structure, a motor is adopted to drive the compressor main unit, the inside of the handpiece simultaneously drives the first-stage and second-stage male rotors to rotate through a synchronous gear, the unit size of the compressor is large, the interstage pressure between the first stage and the second stage is fixed and cannot be automatically adjusted to meet the requirements of the unit when operating in different working conditions, meanwhile, lubricating oil for cooling the oil-cooled permanent magnet variable frequency motor is of a structure with one inlet and one outlet, namely the lubricating oil enters from one inlet of a shell of the variable frequency motor and exits from the other outlet after circulating in an internal flow passage, and then is filtered by an oil grid 7 and then sprayed into an oil injection port of the main unit, an oil pipeline is long, complicated and troublesome, so that large oil circuit pressure loss is formed, and the risk of excessive leakage of a connector is large.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a vertical two motor formula permanent magnetism variable frequency compressor of two-stage.
The utility model provides a technical scheme that its technical problem adopted is:
the two-stage vertical double-motor permanent magnet variable frequency compressor comprises a box body, and a first-stage permanent magnet motor and a second-stage permanent magnet motor which are arranged in the box body;
the primary permanent magnet motor and the secondary permanent magnet motor are positioned on the left side and the right side of the vertical host, and a main air inlet and a main air outlet are formed in the vertical host;
a shaft seal oil return pipe is respectively connected between the main oil inlet and the primary permanent magnet motor and between the main oil inlet and the secondary permanent magnet motor;
still be provided with oil check, oil gas cooler in the box, main air inlet, main gas outlet and oil gas cooler, one-level permanent-magnet machine, second grade permanent-magnet machine and oil check intercommunication, oil check and oil gas cooler intercommunication.
As a preferred option, a vertical support frame is arranged at the lower side of the side edge of the vertical main machine, the lower end of the vertical support frame is connected with a square horizontal support frame, and a shock pad is arranged at the lower side of the square horizontal support frame.
The utility model has the advantages that: the primary permanent magnet motor and the secondary permanent magnet motor are vertically installed, the vertical main machine is matched with the shaft seal oil return pipe connected between the vertical main machine and the primary permanent magnet motor and the secondary permanent magnet motor, and the main oil return pipe connected between the vertical main machine and the oil grid, so that the structure is more compact, the space is saved, the oil pipeline is reduced, the resistance of the oil pipeline is shortened, and the leakage risk of the oil pipeline is reduced.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of the present invention;
fig. 2 is a perspective view of the components of the first-stage permanent magnet motor, the second-stage permanent magnet motor, etc. of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein.
Referring to fig. 1, a two-stage vertical dual-motor type permanent magnet variable frequency compressor comprises a box body 1, a first-stage permanent magnet motor 2 and a second-stage permanent magnet motor 3 in the box body 1, and a vertical host 4, wherein the first-stage permanent magnet motor 2 and the second-stage permanent magnet motor 3 are positioned on the left side and the right side of the vertical host 4, so that male and female rotors of the vertical host 4 as the host are vertically arranged, the occupied space is small, the machine can be designed to be more compact, the external dimension of a unit can be greatly reduced, simultaneously, the male rotors of the first-stage and second-stage permanent magnet motors are respectively driven by the first-stage permanent magnet motor 2 and the second-stage permanent magnet motor 3, the rotating speed of each stage of the first-stage permanent magnet motor 2 and the second-stage permanent magnet motor 3 is adjusted by PID, the interstage pressure is automatically calculated according to the principle of, thereby maintaining maximum efficiency.
Referring to fig. 1 and 2, the vertical main unit 4 is provided with a main air inlet 41 and a main air outlet 42, and is cooled by oil cooling. And a shaft seal oil return pipe 5 is respectively connected between the main air inlet 41 and the primary permanent magnet motor 2 and between the main air inlet and the secondary permanent magnet motor 3. Still be provided with oil check 7, oil gas cooler 6 in the box 1, main air inlet 41, main gas outlet 42 and oil gas cooler 6, one-level permanent-magnet machine 2, second grade permanent-magnet machine 3 and oil check 7 intercommunication, oil check 7 and oil gas cooler 6 intercommunication. Because the integrated first-stage permanent magnet motor 2 and the integrated second-stage permanent magnet motor 3 are vertically arranged on the upper part of the vertical host machine 4, and through the oil cooling motor and the internal oil duct connected with the host machine, lubricating oil from the cooler firstly passes through the oil grid 7 and passes through the oil duct inlets of the oil cooling motors (namely the first-stage permanent magnet motor 2 and the second-stage permanent magnet motor 3), flows back and forth in the interior of the oil cooling motor shell, and is directly sprayed into the rotor cavity through the internal flow channel, so that the oil pipeline is reduced, the resistance of the oil pipeline is shortened, and the leakage risk of the oil pipeline is reduced.
Vertical support 8 is provided with by lower side department on 4 sides of vertical host computer, and 8 lower extremes of vertical support are connected with square frame shape horizontal support 9, and the machine can design compacter, the overall dimension of the reduction unit that can be very big. The lower side of the square horizontal support frame 9 is provided with a shock pad 91, which is beneficial to reducing noise and improving the working stability of the vertical main machine 4.
According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.

Claims (2)

1. Vertical two motor-type permanent magnetism variable frequency compressor of two-stage, its characterized in that: comprises a box body (1), a primary permanent magnet motor (2) and a secondary permanent magnet motor (3) which are arranged in the box body (1);
the permanent magnet motor type permanent magnet motor comprises a vertical main machine (4), wherein a primary permanent magnet motor (2) and a secondary permanent magnet motor (3) are positioned on the left side and the right side of the vertical main machine (4), and a main air inlet (41) and a main air outlet (42) are formed in the vertical main machine (4);
a shaft seal oil return pipe (5) is respectively connected between the main air inlet (41) and the primary permanent magnet motor (2) and the secondary permanent magnet motor (3);
still be provided with oil check (7), oil gas cooler (6) in box (1), main air inlet (41), main gas outlet (42) and oil gas cooler (6), one-level permanent-magnet machine (2), second grade permanent-magnet machine (3) and oil check (7) intercommunication, oil check (7) and oil gas cooler (6) intercommunication.
2. The two-stage vertical double-motor type permanent magnet variable frequency compressor according to claim 1, characterized in that: vertical host computer (4) side is by downside department and is provided with vertical support frame (8), vertical support frame (8) lower extreme is connected with square frame shape horizontal support frame (9), square frame shape horizontal support frame (9) downside is provided with shock pad (91).
CN201921375892.8U 2019-08-22 2019-08-22 Two-stage vertical double-motor type permanent magnet variable frequency compressor Active CN210599420U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921375892.8U CN210599420U (en) 2019-08-22 2019-08-22 Two-stage vertical double-motor type permanent magnet variable frequency compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921375892.8U CN210599420U (en) 2019-08-22 2019-08-22 Two-stage vertical double-motor type permanent magnet variable frequency compressor

Publications (1)

Publication Number Publication Date
CN210599420U true CN210599420U (en) 2020-05-22

Family

ID=70696782

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921375892.8U Active CN210599420U (en) 2019-08-22 2019-08-22 Two-stage vertical double-motor type permanent magnet variable frequency compressor

Country Status (1)

Country Link
CN (1) CN210599420U (en)

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