CN204553260U - A kind of bidirection air intake multistage centrifugal compressor - Google Patents
A kind of bidirection air intake multistage centrifugal compressor Download PDFInfo
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- CN204553260U CN204553260U CN201420659897.4U CN201420659897U CN204553260U CN 204553260 U CN204553260 U CN 204553260U CN 201420659897 U CN201420659897 U CN 201420659897U CN 204553260 U CN204553260 U CN 204553260U
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Abstract
A kind of bidirection air intake multistage centrifugal compressor, it mainly includes: main shaft, impeller, spacer, thrust disc, Balance disc, diaphragm coupling, Diffuser, return channel, bend, import and export volute casing, sealing, bearing pack parts, housing etc., it is characterized in that: (1) adopts multiple tandem impeller, between adjacent two impellers, the blade of a rear impeller arranges the angle certain relative to the blade deflection of previous impeller; (2) impeller is divided into two groups, and two groups of impellers are oppositely arranged on same main shaft, and when the shaft rotates, the airflow direction through two groups of impellers is contrary; (3) Diffuser adopts the combination of vaneless diffuser and vane diffuser, vaneless diffuser at front and vane diffuser rear; (4) intake duct of the stator adjustable angle be made up of inner ring, outer shroud, side plate and stator is adopted; (5) the import and export volute casing of dividing plate both sides band stiffening rib is adopted; (6) air sealing of the overall assembling of split sealing; (7) adopt seal ring inwall with the oil seal group structure on the inclined-plane of certain taper; (8) intake method adopts two two inlet charge structures; (9) mode of giving vent to anger also adopts two air outlet air outlet structures.
Description
Technical field
The utility model belongs to the technical field of centrifugal compressor, is related specifically to the centrifugal compressor of two-way conveying multicomponent specialized fluids in chemical technology field.
Background technique
In chemical enterprise, often have the fluid of two or more heterogeneity to enter in retort and under certain temperature and pressure chemical reaction occurs, temperature can be regulated by the heat exchanger of retort shell, and pressure then must adopt compressor to provide.But, these fluids, before entering retort, although need certain pressure, can not mix in advance, and so just need to adopt multiple compressor to come respectively to the pressurized with fluid of each component, this not only needs the investment of increase equipment; And difficulty accomplishes the pressure match of each component flow.
The centrifugal compressor that current most of petrochemical enterprise is applied can be divided into several classes such as the compressor of horizonally split formula, cartridge type compressor (i.e. vertical subdivision), Axial Flow Compressor, the gas of the compressor conveying of these kinds is all enter in compressor from the import of one end, by exporting from the outlet of the other end after the supercharging of rotor, enter into the process pipelines of user, even if there is the compressor being divided into two sections or three sections, also be because gas temperature is too high, gas is made to reach the effect of cooling by cooler, turn back to again in compressor, improve pressure.
In centrifugal compressor, Diffuser, return channel that main parts are active wheel (impeller) and match with it, gas can obtain very large kinetic energy after impeller, in order to effectively utilize this part energy, all Diffuser is housed after the impeller.Diffuser is divided into vaneless diffuser and vane diffuser two kinds by its structure, and they have very large effect for the performance improving compressor.
How effectively to make the efficiency of multistage centrifugal compressor improve, reduce manufacture cost, provide a kind of the high-efficient compressor of stabilized driving can just become the target that the art scientific and technical personnel pursue in wider operating range.
Chinese patent CN1015489B discloses one " multistage centrifugal compressor ", it is characterized in that: the Diffuser composition one-level that each impeller of compressor and being attached thereto connects, compressor has at least four centrifugal rotors and at least four to lead vane type diffuser (i.e. vane diffuser).The ratio of the stator leading-edge radius and rotor outlet radius of leading previous Diffuser in vane type diffuser told is greater than the same ratio of a rear Diffuser, and a rear Diffuser is close to the comparatively described previous Diffuser of discharge side.Except having except to lead described in vane type diffuser at different levels, also has one-level at least without stator Diffuser.Because the rotation desulfurization in Diffuser produces when refluxing and developing and be formed in the backflow band rotated in Diffuser, and lead vane type diffuser by starting without stator Diffuser to occur that the inner side at backflow position arranges stator leading edge, there is the effect of anti-backflow, so, the backflow occurred at the beginning in return channel and suppressed, also just avoid the generation rotating desulfurization, thus the efficiency that compressor reaches very high can be made, and can work in wider scope.
Chinese patent ZL92111548.2 discloses one " centrifugal compressor ", it is characterized in that: the blade of vane diffuser is divided into two groups, first group of blade has tilt along downstream direction and depart from the leading edge that side plate extends towards central layer, second group of blade has the leading edge perpendicular to above-mentioned flow direction, and first group and second group of blade configure in a mixed way; Also be provided with multiple auxiliary blade, the chord length of each auxiliary blade is shorter than the chord length of each blade simultaneously, and auxiliary blade configuration is placed on radially inner position, and one surface is in the face of a blade; Auxiliary blade is also divided into two groups, and first group has tilt along downstream direction and depart from the leading edge that above-mentioned side plate extends towards above-mentioned central layer; Second group of leading edge had perpendicular to above-mentioned flow direction, these two groups of blades also configure in a mixed manner.Sparse near the tongue of above-mentioned blade and auxiliary blade spiral type air-flow path; And be intensive in the part away from above-mentioned tongue of above-mentioned passage; And near tongue be one and comprise above-mentioned tongue and corresponding to being not more than the general region of whole circumference.The position of this design leading edge, closer to impeller, can be reduced as far as possible or prevent adverse current, even if thus also can prevent surge in low airspeed interval.The configuration uneven together with auxiliary blade of blade forms a rarefaction and a compact district, also can reduce the generation of rotating stall as far as possible.
Chinese invention patent application case CN102434491A discloses one " centrifugal compressor ", by trailing edge radius is identical, length is different long and short stator forms the stator of described vane diffuser, a slice short-range missile leaf is at least configured between adjacent long stator, utilize the rectified action of short-range missile leaf, improve the performance of compressor.
The starting point of above-mentioned all inventions all focuses on Diffuser, but, parts even more important in centrifugal compressor or its active wheel (impeller), in some sense, blade and Diffuser are the main bodys of the conflict cooperatively interacted, improve the performance of compressor, their structure and interrelated be considered.In addition, compress two kinds of fluids with same compressor, will improve the overall utilization rate of compressor like this, the efficiency of formula compressor more can improve a class.The to sum up starting point of these our research work just.
Summary of the invention
The purpose of this utility model is exactly will find a kind of bidirection air intake and can the high-efficiency multi-stage centrifugal compressor of stabilized driving in wider operating range.We start with from the flowing of learning gas impeller, when the limited number of blade, due to the impact of circulation movement in blade path, there is a velocity of circulation (i.e. axial whirlpool) contrary with peripheral speed in the outlet port of impeller, make the relative velocity of air-flow deflect an angle in outlet port towards reverse directions.If between two adjacent blades, the blade of a rear impeller arranges and also offsets corresponding angle relative to the blade of previous impeller, just can reduce the existence in axial whirlpool significantly.Improve the design to Diffuser accordingly.In order to ensure the Uniform Flow of air-flow in volute casing runner, we not only take into account the design of improvement radial inlet guide vane adjuster, are investigated the structure of the import and export volute casing of bidirection air intake simultaneously.
The utility model provides a kind of bidirection air intake multistage centrifugal compressor, it mainly includes: main shaft, impeller, spacer, thrust disc, Balance disc, diaphragm coupling, Diffuser, return channel, bend, import and export volute casing, sealing, bearing pack parts, housing etc., is characterized in that:
(1) adopt multiple tandem impeller, between adjacent two impellers, the blade of a rear impeller arranges the angle certain relative to the blade deflection of previous impeller;
(2) impeller is divided into two groups, and two groups of impellers are oppositely arranged on same main shaft, and when the shaft rotates, the airflow direction through two groups of impellers is contrary;
(3) Diffuser adopt vaneless diffuser with the combination of vane diffuser, vaneless diffuser at front and vane diffuser rear;
(4) intake duct of the stator adjustable angle be made up of inner ring, outer shroud, side plate and stator is adopted;
(5) the import and export volute casing of dividing plate both sides band stiffening rib is adopted;
(6) air sealing of the overall assembling of split sealing;
(7) adopt seal ring inwall with the oil seal group structure on the inclined-plane of certain taper;
(8) intake method adopts two symmetrically arranged inlet charge structures;
(9) mode of giving vent to anger also adopts two symmetrically arranged air outlet air intake structures.
Bidirection air intake multistage centrifugal compressor of the present utility model, between said two impellers adjacent at impeller, the blade of a rear impeller arranges the angle certain relative to the blade deflection of previous impeller; For backward leaning vane be: 5 ~ 15 degree; For forward curved vane be: 5 ~ 15 degree; It is 5 ~ 30 degree for radial blade.
Bidirection air intake multistage centrifugal compressor of the present utility model, the intake duct of said stator adjustable angle, is separately equipped with guide positioning pin, the locating stud changing stator angle and stator rotating center pin.
Bidirection air intake multistage centrifugal compressor of the present utility model, the import and export volute casing of said employing outlet partition plate both sides band stiffening rib is spliced by upper and lower two-part, dividing plate biside plate face is respectively equipped with helical line type volute casing runner, between biside plate face, is distributed with reinforcement gusset; Split between dividing plate top and the bottom also do not have ring stiffener.
Bidirection air intake multistage centrifugal compressor of the present utility model, the overall assembling of said split sealing, comprise upper-lower seal body, seal body is designed with for it sealing tooth and Seal cage, and with seal ring by with closely cooperating of the fine thread on lower seal upper-lower seal body being tightened up.
Bidirection air intake multistage centrifugal compressor of the present utility model, said employing seal ring inwall is with the oil seal group structure on the inclined-plane of certain taper, its sealing surface is be positioned at seal ring inwall and with the inclined-plane of tapering, have flexuose or concavo-convex decorative pattern on the surface, and it is provided with babbit layer.
Bidirection air intake multistage centrifugal compressor of the present utility model, said intake method adopts bidirection air intake mouth air intake structure, and the lower housing of its compressor is with four gas ports, and namely two is one group of compression completing a kind of fluid; And another group gas port also can complete a kind of compression of fluid simultaneously, two kinds of fluids are contained among two containers respectively.
Bidirection air intake multistage centrifugal compressor of the present utility model, the said mode of giving vent to anger adopts two-way air outlet air outlet structure, and the lower housing of its compressor is with two air outlets, and they are arranged on the middle shoulders of compressor lower housing.
The combined innovation and creation of the utility model system, it not only combines the multinomial utility model patent of our company, also add the innovative design of designer to impeller and Diffuser, and have employed two-way enter, the design of air outlet structure, in being more suitable for, the demand of small-sized petrochemical industry and chemical enterprise, this bidirection air intake mouth multistage centrifugal compressor not only can be made stably can to drive in wider operating range, and compressor can be made better to be adapted to various different working environment and working medium, be subject to the consistent favorable comment of user, obtain the welcome of users.
Accompanying drawing explanation
Fig. 1 is the overall sectional drawing of bidirection air intake multistage centrifugal compressor of the present utility model; Fig. 2 is the plan view of the intake duct of stator adjustable angle; Fig. 3 and Fig. 4 is the structural representation of the import and export volute casing bi-side of outlet partition plate both sides band stiffening rib respectively; Fig. 5 is the plan view of the air sealing of the overall assembling of split sealing; Fig. 6 is the structural representation of oil seal group structure; Fig. 7 is the schematic appearance of bidirection air intake multistage centrifugal compressor.
Embodiment
Below in conjunction with accompanying drawing, bidirection air intake multistage centrifugal compressor of the present utility model is further described and is supplemented.
As shown in Figure 1, bidirection air intake multistage centrifugal compressor of the present utility model comprises main shaft 1, impeller 2, spacer 3, thrust disc 4, intake duct 5, imports and exports volute casing 6, diaphragm coupling 7, bend 8, Diffuser 9, return channel 10, Balance disc 11, air sealing 12, oil sealing group 13, its impeller has two at least, they are divided into two groups, two groups of impellers are oppositely connected on main shaft, between adjacent two blades 21, the blade of the impeller of rear arranges the angle certain relative to the blade deflection of previous impeller; For backward leaning vane be: 5 ~ 15 degree; For forward curved vane be: 5 ~ 15 degree; It is 5 ~ 30 degree for radial blade.The Diffuser of bidirection air intake multistage centrifugal compressor of the present utility model is also divided into two groups, and one group is vaneless diffuser 91, and another group is the configuration at vane diffuser 92, two groups of intervals, configures a vane diffuser after each vaneless diffuser.Compressor lower housing, with four gas ports, is two suction ports respectively, is arranged on the outer end of compressor; Two air outlets, are arranged on the intermediate portion of compressor.
As shown in Figure 2, bidirection air intake multistage centrifugal compressor of the present utility model adopts the intake duct of stator adjustable angle, and it comprises side plate 51, inner ring 52, outer shroud 53, stator 54, stator locating stud 55, changes stator angular positioning pin 56 and stator rotating center pin 57.Outer shroud is fixed in inner ring by guide positioning pin, change stator angular positioning pin and then insert outer shroud, stator rotating center pin inserts on inner ring and side plate, stator and stator angular positioning pin are slidably connected, there is outer shroud to drive and change stator angular positioning pin, change stator angular positioning pin to rotate around centrepin at drive stator, thus the angle of adjustable intake duct stator.
As Fig. 3 and as shown in Figure 4, the utility model adopts the import and export volute casing of outlet partition plate both sides band stiffening rib, the i.e. structure of intermediate clapboard turnover air chamber, it comprises: import and export volute casing 62, reinforcement gusset 63, split annular muscle 64, runner 65, volute casing outlet 66 under dividing plate being imported and exported volute casing 61, dividing plate.First make upper and lower import and export volute casing with steel respectively, suppress respectively with steel again and be processed into and strengthen gusset and split annular muscle, finally adopt welding procedure, use reinforcement gusset and split annular muscle by integrally welded for upper and lower import and export volute casing respectively, be finally made into the import and export volute casing of outlet partition plate both sides band stiffening rib.
As shown in Figure 5, air sealing of the present utility model is made up of seal body top 121 and seal body bottom 122, seal body top is divided into sealing tooth 124 and Seal cage 126, seal body lower part has fine thread 125, is tightened up by upper and lower for seal body two-part by the cooperation of sealing retaining ring 123 and fine thread.
As shown in Figure 6, oil sealing group of the present utility model comprises body 131 and babbit layer 132, the sealing surface indention of its body or concavo-convex pitted skin, is positioned at seal ring inwall and with certain tapering.Oil sealing group body first with zigzag fashion or concavo-convex sealing surface during making, then at sealing surface upper Babbitt, finally inside and outside ring is assembled into one and makes oil sealing group.
We are further described by the parameter of specific embodiment to bidirection air intake multistage centrifugal compressor of the present utility model below.
The bidirection air intake of embodiment 1 with backward leaning vane three grades of centrifugal compressors
The present embodiment is three grades of centrifugal compressors, and impeller is divided into two groups, one group of impeller; Another organizes two impellers, and two groups of impellers are oppositely arranged on main shaft.Impeller adopts unshrouded impeller, and its blade adopts back curved structure, deflects 5 degree between the impeller blade of front and back two; Vaneless diffuser is configured in low pressure stage side, and vane diffuser is then configured in high pressure stage side.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure all as previously mentioned, without the need to separately adding explanation.
The bidirection air intake Pyatyi centrifugal compressor of embodiment 2 with backward leaning vane
The present embodiment is Pyatyi centrifugal compressor, and impeller is divided into two groups, one group of two impeller; Another organizes three impellers, and two groups of impellers are oppositely arranged on main shaft.Impeller adopts half-opened impeller, and its blade adopts back curved structure, deflects 15 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation.
The bidirection air intake level Four centrifugal compressor of embodiment 3 with backward leaning vane
The present embodiment is level Four centrifugal compressor, and impeller is divided into two groups, and often organize two impellers, two groups of impellers are oppositely arranged on main shaft.Impeller adopts double shrouded wheel, and its blade adopts back curved structure, deflects 10 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation.
The bidirection air intake of embodiment 4 with forward curved vane three grades of centrifugal compressors
The present embodiment is three grades of centrifugal compressors, and impeller is divided into two groups, one group of impeller; Another organizes two impellers, and two groups of impellers are oppositely arranged on main shaft.Impeller adopts unshrouded impeller, and its blade adopts antecurvature formula structure, deflects 5 degree between the impeller blade of front and back two; Vaneless diffuser is configured in low pressure stage side, and vane diffuser is then configured in high pressure stage side.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure all as previously mentioned, without the need to separately adding explanation.
The bidirection air intake Pyatyi centrifugal compressor of embodiment 5 with forward curved vane
The present embodiment is Pyatyi centrifugal compressor, and impeller is divided into two groups, one group of two impeller; Another organizes three impellers, and two groups of impellers are oppositely arranged on main shaft.Impeller adopts half-opened impeller, and its blade adopts antecurvature formula structure, deflects 15 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation.
The bidirection air intake level Four centrifugal compressor of embodiment 6 with forward curved vane
The present embodiment is level Four centrifugal compressor, and impeller is divided into two groups, and often organize two impellers, two groups of impellers are oppositely arranged on main shaft.Impeller adopts double shrouded wheel, and its blade adopts antecurvature formula structure, deflects 10 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation.
The bidirection air intake of embodiment 7 with radial blade six grades of centrifugal compressors
The present embodiment is six grades of centrifugal compressors, and impeller is divided into two groups, and often organize three impellers, two groups of impellers are oppositely arranged on main shaft.Impeller adopts unshrouded impeller, and its blade adopts radial structure, deflects 5 degree between the impeller blade of front and back two; Vaneless diffuser is configured in low pressure stage side, and vane diffuser is then configured in high pressure stage side.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure all as previously mentioned, without the need to separately adding explanation.
The bidirection air intake Pyatyi centrifugal compressor of embodiment 8 with radial blade
The present embodiment is Pyatyi centrifugal compressor, and impeller is divided into two groups of one group of two impellers; Another organizes three impellers, and two groups of impellers are oppositely arranged on main shaft.Impeller adopts half-opened impeller, and its blade adopts radial structure, deflects 15 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation.
The bidirection air intake level Four centrifugal compressor of embodiment 9 with radial blade
The present embodiment is level Four centrifugal compressor, and impeller is divided into two groups, and often organize two impellers, two groups of impellers are oppositely arranged on main shaft.Impeller adopts double shrouded wheel, and its blade adopts radial structure, deflects 10 degree between the blade of front and back two impeller; Vaneless diffuser configuration low pressure stage side, then configures vane diffuser after each vaneless diffuser.The import and export volute casing of the intake duct of remaining stator adjustable angle, the import and export volute casing of outlet partition plate both sides band stiffening rib, outlet partition plate both sides band stiffening rib, air sealing and oil seal group structure as previously mentioned, without the need to separately adding explanation
The various embodiments described above are only different service condition according to different user and the design proposal proposed, these design proposals are after same user signs corresponding Non Disclosure Agreement, model machine is supplied to user and tries out the special case obtaining comparatively satisfied effect, therefore can also list more example.
Under the utility model have studied emphatically the limited blade condition with bidirectional air intake structure, circulation is on the impact of outlet air flow velocity, and on the basis of this, corresponding improvement has been carried out to the structure of the combination of Diffuser, intake duct, import and export volute casing and oil sealing group, and have employed the design of two-way import and export air-flow path, finally define the design proposal that this is brand-new.It is characterized in that it is suitable for the air-flow of various flowing medium and different pressures, thus go for various specialty and engineering, obtain the welcome of all kinds of enterprise of each row, achieve good Social benefit and economic benefit.
Claims (8)
1. a bidirection air intake multistage centrifugal compressor, it mainly includes: main shaft, impeller, spacer, thrust disc, Balance disc, diaphragm coupling, Diffuser, return channel, bend, import and export volute casing, sealing, bearing pack parts, housing etc., is characterized in that:
(1) adopt multiple tandem impeller, between adjacent two impellers, the blade of a rear impeller arranges the angle certain relative to the blade deflection of previous impeller;
(2) Diffuser adopt vaneless diffuser with the combination of vane diffuser, vaneless diffuser at front and vane diffuser rear;
(3) intake duct of the stator adjustable angle be made up of inner ring, outer shroud, side plate and stator is adopted;
(4) the import and export volute casing of dividing plate both sides band stiffening rib is adopted;
(5) air sealing of the overall assembling of split sealing;
(6) adopt seal ring inwall with the oil seal group structure on the inclined-plane of certain taper;
(7) intake method adopts two inlet charge structures;
(8) mode of giving vent to anger also adopts two air outlet air outlet structures.
2. by bidirection air intake multistage centrifugal compressor according to claim 1, it is characterized in that between said two impellers adjacent at impeller, the blade of a rear impeller arranges the angle certain relative to the blade deflection of previous impeller; For backward leaning vane be: 5 ~ 15 degree; For forward curved vane be: 5 ~ 15 degree; It is 5 ~ 30 degree for radial blade.
3. by bidirection air intake multistage centrifugal compressor according to claim 1, it is characterized in that the intake duct of said stator adjustable angle, be separately equipped with guide positioning pin, the locating stud changing stator angle and stator rotating center pin.
4. by bidirection air intake multistage centrifugal compressor according to claim 1, the import and export volute casing that it is characterized in that said employing outlet partition plate both sides band stiffening rib is spliced by upper and lower two-part, dividing plate biside plate face is respectively equipped with helical line type volute casing runner, between biside plate face, is distributed with reinforcement gusset; Split between dividing plate top and the bottom also do not have ring stiffener.
5. by bidirection air intake multistage centrifugal compressor according to claim 1, it is characterized in that the overall assembling of said split sealing, comprise upper-lower seal body, seal body is designed with for it sealing tooth and Seal cage, and with seal ring by with closely cooperating of the fine thread on lower seal upper-lower seal body being tightened up.
6. by bidirection air intake multistage centrifugal compressor according to claim 1, it is characterized in that the oil seal group structure of said seal ring inwall with the inclined-plane of certain taper, its sealing surface is be positioned at seal ring inwall and with the inclined-plane of tapering, there are flexuose or concavo-convex decorative pattern on the surface, it is provided with babbit layer.
7., by bidirection air intake multistage centrifugal compressor according to claim 1, it is characterized in that said intake method adopts bidirection air intake mouth air intake structure, the lower housing of its compressor is with four gas ports, and namely two is one group of compression completing a kind of fluid; And another group gas port also can complete a kind of compression of fluid simultaneously, two kinds of fluids are contained among two containers respectively.
8., by the bidirection air intake multistage centrifugal compressor described in claim 1 or 7, it is characterized in that said two air outlets are arranged on the outer end of compressor; And two air outlets are arranged on the intermediate portion of compressor.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151063A (en) * | 2016-08-29 | 2016-11-23 | 沈阳斯特机械制造有限公司 | A kind of CO recycle gas compressor |
| CN107237764A (en) * | 2017-08-08 | 2017-10-10 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of air compressor machine expands can equipment |
| CN108999792A (en) * | 2018-07-13 | 2018-12-14 | 吴艮华 | A kind of impeller air pump |
-
2014
- 2014-11-06 CN CN201420659897.4U patent/CN204553260U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151063A (en) * | 2016-08-29 | 2016-11-23 | 沈阳斯特机械制造有限公司 | A kind of CO recycle gas compressor |
| CN107237764A (en) * | 2017-08-08 | 2017-10-10 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of air compressor machine expands can equipment |
| CN108999792A (en) * | 2018-07-13 | 2018-12-14 | 吴艮华 | A kind of impeller air pump |
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