CN205089651U - It does not have oily centrifugal compressor group to become sled formula - Google Patents
It does not have oily centrifugal compressor group to become sled formula Download PDFInfo
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- CN205089651U CN205089651U CN201520885001.9U CN201520885001U CN205089651U CN 205089651 U CN205089651 U CN 205089651U CN 201520885001 U CN201520885001 U CN 201520885001U CN 205089651 U CN205089651 U CN 205089651U
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Abstract
The utility model discloses an it does not have oily centrifugal compressor group to become sled formula relates to natural gas compressor technical field for solve the big and big technical problem of area of current natural gas transportation in -process compressor construction cost and maintenance cost height and noise, the utility model discloses a casing, the casing is inside to have set gradually left centrifugal compressor, high -speed inverter motor and right centrifugal compressor, all is provided with the impeller in left centrifugal compressor and the right centrifugal compressor, high -speed inverter motor in the middle of have a rigid rotator, the rigid rotator both ends all are provided with the radial magnetic bearing who is used for supporting rigid rotator, rigid rotator pass each self -corresponding radial magnetic bearing and left centrifugal compressor's impeller and right centrifugal compressor's impeller connection in both ends about, the utility model is suitable for a natural gas compression is carried, the utility model discloses the sled has into, do not have oily, high -efficient, explosion -proof, the noise hangs down, cost low technology advantage.
Description
Technical field
The utility model belongs to compressor field, is specifically related to natural gas centrifugal compressor field, relates to a kind of one-tenth sled formula more specifically without oily Systems of Centrifugal Compressor Unit.
Background technique
At present, compressor is widely used in the industrial fields such as petrochemical industry, metallurgy, electric power, weaving, electric power, military project.
Natural gas compressor is widely used in natural gas transport field at home, conventional natural gas compressor is all drive compressor work by gas turbine as power source, owing to limiting by the technical capability of state's internal-combustion gas turbine engine and natural gas compressor, the external import of consistent dependence, not only engineering price and maintenance cost high, and after sale, the link technology such as maintenance are uncontrollable, substantially monopolized by overseas equipment based on current natural gas compressor, Gao Long-distance Transmission Pipeline compressor apparatus can only spend huge sums import, the Security in this core strategy field is carried to define huge hidden danger to China's natural gas.
In order to break away from the dependence to foreign natural gas long-distance transport pipes compressor, reducing the construction costs and maintenance cost, domestic relevant manufacturers all starts to have carried out the development work of natural gas compressor.Conventional natural gas compressor is all drive compressor work by gas turbine as power source, and each non-integration of natural gas compressor connects, and floor space is large; And compressor needs lubricating oil system lubricating bearings, has pollutant emission during operation, and there is noise.
Therefore the striving direction how solved the problems of the technologies described above into those skilled in the art.
Model utility content
The utility model overcomes above-mentioned technical deficiency, provides a kind of compact structure, making and installation to safeguard simple and convenient, the one-tenth sled formula non lubricant oil centrifugal pressure type contracting unit that lubrication is effective.
The utility model to achieve these goals concrete by the following technical solutions:
A kind of one-tenth sled formula is without oily Systems of Centrifugal Compressor Unit, comprise housing, enclosure interior is disposed with left centrifugal compressor, high-speed induction motor and right centrifugal compressor, impeller is provided with in left centrifugal compressor and right centrifugal compressor, a stiffness rotor is had in the middle of described high-speed induction motor, stiffness rotor two ends are provided with the radial magnetic bearing for rigidity of support rotor, and the two ends, left and right of described stiffness rotor are connected with the impeller of left centrifugal compressor and the impeller of right centrifugal compressor through each self-corresponding radial magnetic bearing.
Further, described stiffness rotor is provided with for balancing axial thrust Axial Magnetic Bearing, radial magnetic bearing and Axial Magnetic Bearing be without firmly contact, without coupling, non-gear box, design without shaft seal.Further, described stiffness rotor and the impeller of both sides on the same axis integrated.
Further, described high-speed induction motor, radial magnetic bearing and Axial Magnetic Bearing all cool with process gas.
Further, high-speed induction motor is controlled by the fixed frequency-variable device drive system that is arranged on away from squeezed light.
The beneficial effects of the utility model are as follows:
1, one-tenth sled formula of the present utility model replaces price high without using high-frequency electric machines in oily Systems of Centrifugal Compressor Unit and needs the gas turbine of import as power source, and the axle of the axle of high-frequency electric machines and the compressor of two-stage carries out integrated, forms an all-in-one-piece axle system; High-frequency electric machines adopts process gas directly to cool, be provided with two radial magnetic force spring bearings between left and right two stage compressor and motor rotor, magnetic bearing is also without the need to lubricating oil system, and whole unit is without oil machine group, this nothing oil, the feature do not revealed also well protect environment, and noise is low; Due to malleation process gas cool motors, air does not enter in unit, and Fire Possibility is almost nil, and unit has good explosion prevention function.
2, Axial Magnetic Bearing without hard contact, without coupling, non-gear box, considerably increase projected life of unit without the design feature of shaft seal, the service cycle of unit is increased greatly, brings material benefit to user.
3, two independently centrifugal compressor can connect, also can be in parallel, provide a more wide regulating working conditions scope.
4, rotor is designed to stiff shaft, and its shaft vibration reduced greatly than former design, remains on a very stable scope.
Accompanying drawing explanation
Fig. 1 be the utility model a kind of become sled formula without the structural representation of oily Systems of Centrifugal Compressor Unit;
Reference character: 1-housing, the right centrifugal compressor of 1-1-, 1-1.1-impeller, 1-2-high-speed induction motor, 1-2.1-stiffness rotor, the left centrifugal compressor of 1-3-, 2-radial magnetic bearing, 3-Axial Magnetic Bearing.
Embodiment
In order to those skilled in the art person better understands the utility model, below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of one-tenth sled formula without oily Systems of Centrifugal Compressor Unit, comprise housing 1, housing 1 inside is disposed with left centrifugal compressor 1-3, high-speed induction motor 1-2 and right centrifugal compressor 1-1, impeller 1-1.1 is provided with in left centrifugal compressor 1-3 and right centrifugal compressor 1-1, a stiffness rotor 1-2.1 is had in the middle of described high-speed induction motor 1-2, stiffness rotor 1-2.1 two ends are provided with the radial magnetic bearing 2 for rigidity of support rotor 1-2.1, the two ends, left and right of described stiffness rotor 1-2.1 are connected with the impeller of left centrifugal compressor 1-3 and the impeller 1-1.1 of right centrifugal compressor 1-1 through each self-corresponding radial magnetic bearing 2.
In the present embodiment, Systems of Centrifugal Compressor Unit is the compression system that a complete totally enclosed one-tenth sled formula variable-frequency motor drives, conveying mainly for rock gas is developed, the design concept of this uniqueness greatly reduces construction cost, operating cost, the maintenance cost of station for enhancing gas pressure, be particularly suitable for the occasion compressing special gas, major design is used for natural gas boosting conveying, prizes formula structure owing to being into, install and transport all very convenient, being also very applicable to the occasions such as offshore drilling platform.
Embodiment 2
As shown in Figure 1, the present embodiment is on the basis of embodiment 1, done further improvement, specifically, described stiffness rotor 1-2.1 is provided with for balancing axial thrust Axial Magnetic Bearing 3, radial magnetic bearing 2 and axial magnetic mechanical axis 3 hold be without firmly contact, without coupling, non-gear box, design without shaft seal, further, described stiffness rotor and the impeller of both sides on the same axis integrated.
In the present embodiment, Axial Magnetic Bearing without hard contact, without coupling, non-gear box, considerably increase projected life of unit without the design feature of shaft seal, the service cycle of unit is increased greatly, brings material benefit to user.
The rotor design of high-speed induction motor is stiff shaft, and its shaft vibration reduced greatly than former design, remains on a very stable scope.
Embodiment 3
As shown in Figure 1, the present embodiment is on the basis of embodiment 1 or 2, done following improvement, and specifically, described high-speed induction motor 1-2, radial magnetic bearing 2 and Axial Magnetic Bearing 3 all cool with process gas.
Described high-speed induction motor 1-2 is controlled by the fixed frequency-variable device drive system that is arranged on away from squeezed light.
Described stiffness rotor 1-2.1 and the impeller 1-1.1 of both sides is on the same axis integrated.
The above; be only preferred embodiment of the present utility model; not in order to limit the utility model; scope of patent protection of the present utility model is as the criterion with claims; the equivalent structure change that every utilization specification of the present utility model and accompanying drawing content are done, in like manner all should be included in protection domain of the present utility model.
Claims (5)
1. one kind becomes sled formula without oily Systems of Centrifugal Compressor Unit, it is characterized in that, comprise housing (1), housing (1) inside is disposed with left centrifugal compressor (1-3), high-speed induction motor (1-2) and right centrifugal compressor (1-1), impeller (1-1.1) is provided with in left centrifugal compressor (1-3) and right centrifugal compressor (1-1), a stiffness rotor (1-2.1) is had in the middle of described high-speed induction motor (1-2), stiffness rotor (1-2.1) two ends are provided with the radial magnetic bearing (2) for rigidity of support rotor (1-2.1), the two ends, left and right of described stiffness rotor (1-2.1) are connected with the impeller of left centrifugal compressor (1-3) and the impeller (1-1.1) of right centrifugal compressor (1-1) through each self-corresponding radial magnetic bearing (2).
2. one-tenth sled formula according to claim 1 is without oily Systems of Centrifugal Compressor Unit, it is characterized in that, described stiffness rotor (1-2.1) is provided with for balancing axial thrust Axial Magnetic Bearing (3).
3. one-tenth sled formula according to claim 2 is without oily Systems of Centrifugal Compressor Unit, it is characterized in that, described stiffness rotor (1-2.1) is on the same axis integrated with the impeller (1-1.1) of both sides.
4. one-tenth sled formula according to claim 2 is without oily Systems of Centrifugal Compressor Unit, it is characterized in that, described high-speed induction motor (1-2), radial magnetic bearing (2) and Axial Magnetic Bearing (3) all cool with process gas.
5. one-tenth sled formula according to claim 1 is without oily Systems of Centrifugal Compressor Unit, it is characterized in that, high-speed induction motor (1-2) is controlled by the fixed frequency-variable device drive system that is arranged on away from squeezed light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520885001.9U CN205089651U (en) | 2015-11-09 | 2015-11-09 | It does not have oily centrifugal compressor group to become sled formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520885001.9U CN205089651U (en) | 2015-11-09 | 2015-11-09 | It does not have oily centrifugal compressor group to become sled formula |
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| Publication Number | Publication Date |
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| CN205089651U true CN205089651U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520885001.9U Active CN205089651U (en) | 2015-11-09 | 2015-11-09 | It does not have oily centrifugal compressor group to become sled formula |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425862A (en) * | 2017-02-14 | 2018-08-21 | 丹佛斯公司 | Oil-free centrifugal compressor for being used in being applied in low capacity |
| CN114673566A (en) * | 2022-03-31 | 2022-06-28 | 北京大臻科技有限公司 | Differential pressure power generation device and system for recovering pressure energy of natural gas pipe network |
-
2015
- 2015-11-09 CN CN201520885001.9U patent/CN205089651U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425862A (en) * | 2017-02-14 | 2018-08-21 | 丹佛斯公司 | Oil-free centrifugal compressor for being used in being applied in low capacity |
| CN114673566A (en) * | 2022-03-31 | 2022-06-28 | 北京大臻科技有限公司 | Differential pressure power generation device and system for recovering pressure energy of natural gas pipe network |
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