CN205207211U - Large -scale mixed flow compressor - Google Patents
Large -scale mixed flow compressor Download PDFInfo
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- CN205207211U CN205207211U CN201520844037.2U CN201520844037U CN205207211U CN 205207211 U CN205207211 U CN 205207211U CN 201520844037 U CN201520844037 U CN 201520844037U CN 205207211 U CN205207211 U CN 205207211U
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Abstract
The utility model discloses a large -scale mixed flow compressor, utility model combines axial compressor and centrifugal compressor to be in the same place, is provided with the baffle between the two, be provided with toroidal cavity in the baffle, along radially being provided with a plurality of metal sheets in the toroidal cavity, wall connection in the outward flange of baffle and the casing adopts the side tooth sealed between the inward flange of baffle and the rotor, the below of bearing box is connected with the backup pad, the backup pad sets firmly on the casing. The utility model provides a large -scale empty the branch large -traffic and efficient comprehensive requirement, and the work efficiency height is matchd to the performance.
Description
Technical field
The utility model belongs to fluid dynamic engineering field, relates to a kind of compressor, is specifically related to a kind of large-scale mixed compressor.
Background technique
Safe and reliable operation is related to the energy resource safety strategy of China, the energy-saving and cost-reducing eternal theme being air separation plant and developing, it is the main performance index of air separation plant, gas industry is basic industry, consequence and effect is had in national economy, as water, electricity, be widely used in chemical industry, metallurgy, oil, petrochemical industry, machinery, electronics, light industry, weaving and the numerous areas such as Aeronautics and Astronautics, nuclear industry, the effect in the field such as national defense construction and health care is also very outstanding.Country pays much attention to the development of gas industry all the time, and has made a large amount of planning, and the production domesticization of Support gas industry is the basic principle of national gas industrial policy.Country has gone into overdrive to carry out industry restructuring to gas industry, will further to maximization future development, the particularly development of Coal Chemical Industry in China industry, all needs these nucleus equipments of high-efficiency large turbo compressor unit.Existing compressor many employings Axial Flow Compressor or centrifugal compressor, cannot adapt to Large Air Separation Devices to large discharge and high efficiency composite request, and working efficiency is lower, energy consumption is larger.
Summary of the invention
For above-mentioned problems of the prior art or defect, the purpose of this utility model is, provides a kind of and effectively can solve the large-scale mixed compressor of Large Air Separation Devices to large discharge and high efficiency composite request.
To achieve these goals, the utility model is by the following technical solutions:
A kind of large-scale mixed compressor, comprise suction chamber, casing, rotor, bearing bag and bearing housing, thrust bearing and the first spring bearing is provided with in described bearing bag, the second spring bearing is provided with in bearing housing, described rotor and casing are coaxially set, one end of described rotor is stretched in described bearing bag and is connected described first spring bearing and thrust bearing successively, and its other end stretches in described bearing housing, the second spring bearing described in connection;
The outlet end of described suction chamber is connected with the entry end of casing;
Described rotor is disposed with in the axial direction axial flow compression system and centrifugal compressor system, and axial flow compression system comparatively centrifugal compressor system near suction chamber; Described axial flow compression system comprises being arranged on and holds cylinder between casing and rotor, and described centrifugal compressor system comprises and is arranged on epitrochanterian impeller; The bottom of described casing is provided with the outlet of axial flow section, centrifugal step outlet and centrifugal end entrance, and described axial flow section outlet is connected by pipeline with centrifugal step entrance;
Be provided with dividing plate between described axial flow compression system and centrifugal compressor system, in described dividing plate, be provided with toroidal cavity, in described toroidal cavity, be disposed radially multiple sheet metal; The outward edge of described dividing plate is connected with casing inner wall, adopts side tooth to seal between the inward flange of dividing plate and rotor;
The below of described bearing housing is connected with dunnage, and described dunnage is installed on casing.
Further, described in hold between cylinder and casing and be provided with adjustment cylinder, described in hold in cylinder stator blade be installed, rotor is provided with movable vane, described casing is also provided with adjustment drive unit, described adjustment drive unit is connected with described adjustment cylinder.
Particularly, described bearing bag is positioned at suction chamber, and described suction chamber, casing and bearing bag three coaxial line distribute; Described bearing bag is fixed in described suction chamber by gusset.
Further, described axial flow compression system and described centrifugal compressor system adopt and are disposed in order or arrange back-to-back.
Further, the casing of the centrifugal step ingress of described suction chamber ingress and centrifugal compressor system is all provided with water washing device.
Further, the arranged outside of the shell of described suction chamber has a support shell, and the edge of described support shell embeds in described casing.
Further, described casing inner wall is vertically provided with the side plate that a longitudinal section is L shape, described in hold the bottom of the vertical portion of cylinder end connecting lateral plate, the horizontal component of described side plate is provided with Diffuser.
Further, described pipeline is provided with cooler.
Further, one end that described rotor is connected with bearing housing is removably provided with Balance disc.
Further, described rotor is provided with at least two-stage step.
Further, described centrifugal step ingress is provided with gas distributor.
Further, described bottom of shell is provided with mist exhausting port.
Further, described bottom of shell is provided with feather key.
Alternatively, described adjustment drive unit adopts electro-hydraulic actuator.
Compared with prior art, the utility model has following technique effect:
1, Axial Flow Compressor and centrifugal compressor are combined, solve Large Air Separation Devices to large discharge and high efficiency composite request, and Performance Match, working efficiency is high.
2, axial flow section of the present utility model adopts the mode of axial admission, side direction exhaust, and decrease eddy current loss, whole efficiency significantly raises.
3, dividing plate is provided with between axial flow compression system and centrifugal compressor system, toroidal cavity is provided with in described dividing plate, for alleviating the weight of dividing plate, multiple sheet metal has been disposed radially in described toroidal cavity, described sheet metal adopts iron plate or steel plate, for strengthening the non-deformability of dividing plate.
4, the below of bearing housing is connected with dunnage, and described dunnage is installed on casing, and described dunnage is used for spring bearing case, prevents the gravity due to bearing housing from causing the distortion of casing.
5, casing of the present utility model is installed adjustment drive unit, regulate the relative air inlet angle of variable stator vane angle blade, thus regulate air quantity and the blast of blower fan, meet the demand of different operating mode, make drag losses less, overall efficiency is higher.
6, the utility model is provided with water washing device in the ingress of axial flow section and centrifugal end gas, makes gas carry aqueous vapor, for cleaning movable vane and stator blade and impeller.
7, axial flow section outlet of the present utility model and centrifugal step outlet are provided with cooler, cool, increase work efficiency, prevent gas temperature too high too high to device materials performance requirement simultaneously to gas.
8, the utility model is in centrifugal step inlet, and the front of impeller is provided with gas distributor, makes air inlet more uniform, more smooth, raises the efficiency.
9, the utility model is provided with Balance disc in the front of centrifugal step impeller, and Balance disc and rotor removably connect, and by the pressure difference generated force of suction pressure and air, is conducive to the axial force of balancing rotor.
10, casing of the present utility model adopts the mode of welding, and yield rate is high, cost-saving.
11, axial flow section of the present utility model and centrifugal step adopt the mode of side tooth sealing to seal, and sealing effect is better, prevents the mutual play of gas.
12, axial flow section of the present utility model and centrifugal step adopt the Placement of backrest-type, and the length of rotor is diminished, and the overall weight of device alleviates.
13, rotor of the present utility model adopts the design of two-stage step, makes the rigidity of rotor better.
14, the volume flowrate of compressor of the present utility model can reach 1300000m3/h, and pressure ratio can reach 30, and it is far away higher than the compressor of prior art; And it is compact structure, easy for installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Number in the figure represents: 1-suction chamber, 2-rotor, 3-casing, 4-holds cylinder, 5-regulates cylinder, 6-stator blade, 7-movable vane, 8-impeller, 9-Balance disc, 10-bearing housing, 11-second spring bearing, 12-thrust bearing, 13-water washing device, 14-regulates drive unit, 15-gusset, 16-bearing bag, 17-axial flow section exports, 18-centrifugal step entrance, 19-centrifugal step exports, 20-dividing plate, the tooth sealing of 21-side, 22-dividing plate, 23-side plate, 24-support shell, 25-mist exhausting port, 26-Diffuser, 27-gas distributor, 28-feather key, 29-shell, 30-the first spring bearing, 31-dunnage.
Below in conjunction with drawings and Examples scheme of the present utility model done and explain further and illustrate.
Embodiment
Defer to technique scheme, see Fig. 1, large-scale mixed compressor of the present utility model, comprises suction chamber 1, casing 3, rotor 2, bearing bag 16 and bearing housing 10, be provided with thrust bearing 12 and the first spring bearing 30 in described bearing bag 16, in bearing housing 10, be provided with the second spring bearing 11; Described rotor 2 is coaxially set with casing 3, and one end of described rotor 2 is stretched in described bearing bag 16 and connected described first spring bearing 30 and thrust bearing 12 successively, and its other end stretches in described bearing housing 10, the second spring bearing 11 described in connection.
Thrust bearing 12 is for bearing the axial force of rotor 2, and the axial float of restrict rotor 2, keeps the axial position of rotor 2 in casing 3; First spring bearing 30 and the second spring bearing 11, for bearing weight and other additional radial pressures of rotor 2, keep the center of rotation of rotor 2 consistent with casing 3 center, and normally rotate under certain rotating speed.The outlet end of described suction chamber 1 is connected with the entry end of casing 3, and gas compresses by flowing in casing 3 in suction chamber 1.
Described rotor 2 is disposed with in the axial direction axial flow compression system and centrifugal compressor system, and axial flow compression system comparatively centrifugal compressor system near suction chamber 1; Two kinds of compression systeies combine by the utility model, solve Large Air Separation Devices to large discharge and high efficiency composite request, and Performance Match, working efficiency is high.
Described axial flow compression system comprises being arranged on and holds cylinder 4 between casing 3 and rotor 2, and described centrifugal compressor system comprises and is arranged on epitrochanterian impeller 8; Described impeller 8 is at least provided with two, for compressing gas; Described impeller 8 adopts three-dimensional flow impeller, is semi-open type or enclosed.
The bottom of described casing 3 is provided with axial flow section outlet 17, centrifugal step outlet 19 and centrifugal end entrance 18, and described axial flow section outlet 17 is connected by pipeline with centrifugal step entrance 18.Further, described pipeline is provided with cooler.The described gas flowing through axial flow compression system after compression, export 17 by axial flow section to flow out, after the pipeline being provided with cooler, enter described centrifugal compressor system continue compression by centrifugal step entrance 18, the gas after compression flows out via centrifugal step outlet 19; The design of cooler herein, for cooling gas, increases work efficiency, and prevents gas temperature too high too high to device materials performance requirement simultaneously.
Dividing plate 20 is provided with between described axial flow compression system and centrifugal compressor system, toroidal cavity is provided with in described dividing plate 20, for alleviating the weight of dividing plate 20, multiple sheet metal has been disposed radially in described toroidal cavity, described sheet metal adopts iron plate or steel plate, for strengthening the non-deformability of dividing plate 20; The outward edge of described dividing plate 20 is connected with casing 3 inwall, adopts side tooth to seal 21 between the inward flange of dividing plate 22 and rotor 2, for preventing the mutual play of the gas of axial flow section and centrifugal step.
The below of described bearing housing 10 is connected with dunnage 31, and described dunnage 31 to be installed on casing 3, and described dunnage 31, for spring bearing case 10, prevents the gravity due to bearing housing 10 from causing the distortion of casing 3.
Further, described in hold to be provided with between cylinder 4 and casing 3 and regulate cylinder 5, described in hold in cylinder 4 stator blade 6 be installed, rotor 2 is provided with movable vane 7, described casing 3 is also provided with and regulates drive unit 14, described adjustment drive unit 14 is connected with described adjustment cylinder 5.Further, described adjustment drive unit 14 adopts electro-hydraulic actuator, regulates the relative air inlet angle of stator blade 6 blade, change the direction of air inlet stream, thus the flow of adjustments of gas and pressure, meet the demand of different operating mode, make drag losses less, overall efficiency is higher.
Further, described bearing bag 16 is positioned at suction chamber 1, and described suction chamber 1, casing 3 and bearing bag 16 three coaxial line distribute, and described suction chamber 1 is horizontally disposed with, and adopt the mode of axial admission, decrease eddy current loss, whole efficiency significantly raises; Described bearing bag 16 adopts the gusset 15 of wing blade to be fixed in the runner of suction chamber 1.
Particularly, described axial flow compression system and described centrifugal compressor system adopt and are disposed in order or arrange back-to-back; When adopting back-to-back mode to connect, gas flows in opposite directions in casing 3, and make the utility model can adopt the rotor that length is less, the overall weight of device alleviates.
Further, the casing 3 at centrifugal step entrance 18 place of described suction chamber 1 ingress and centrifugal compressor system is all provided with water washing device 13, described water washing device 13 adopts the water spray system of internally spraying water, the gas entered in casing 3 is made to carry aqueous vapor, in the process of circulation, the surface deposits of movable vane, stator blade, impeller and spiral case can be removed, and collected by drainage system; This process can be carried out in compressor normally runs, and decreases the time of maintenance shut-downs, less to the normal influence on system operation of unit, provides the working efficiency of compressor.
Further, the arranged outside of the shell 29 of described suction chamber 1 has a support shell 24, support shell 24 and the casing 3 of suction chamber 1 pass through Flange joint, for preventing the distortion of casing 3, and the edge of described support shell 24 embeds in described casing 3, to make suction chamber 1 fix with the relative position of casing 3, prevent rotor 2 from making to produce relative movement between suction chamber 1 and casing 3 in rotation process.
Further, described casing 3 inwall is vertically provided with the side plate 23 that a longitudinal section is L shape, described in hold the bottom of the vertical portion of cylinder 4 end connecting lateral plate 23, prevent holding cylinder 4 and drop, hinder the rotation of rotor 2; The horizontal component of described side plate 23 is provided with Diffuser 26, for carrying out diffusion to gas.
Further, one end that described rotor 2 is connected with spring bearing 11 is removably provided with Balance disc 9, and described Balance disc 9 is connected by interference fit with rotor 2, or interference fit adds the Placement of pin, is convenient to install.The pressure of Balance disc 9 both sides is respectively pressure and the barometric pressure at centrifugal step entrance 18 place, the two pressure difference produced, for balancing axial thrust.
Further, described rotor 2 is provided with at least two-stage step, for strengthening the rigidity of rotor 2.
Further, described centrifugal step entrance 18 place is provided with gas distributor 27, makes air inlet more uniform, more smooth, thus raises the efficiency.
Further, bottom described casing 3, be provided with mist exhausting port 25, for getting rid of the fog in casing 3.
Further, bottom described casing 3, be provided with feather key 28, the overall dimensions of compressor of the present utility model is diminished, be convenient to transport.
Further, described casing 3 adopts the mode of welding, makes the yield rate of casing 3 higher, thus cost-saving.
Further, between described each impeller 8, be provided with inter-stage sealing, for reducing because gas pressure raises the internal leakage existed between every one stage impeller 8.
Large-scale mixed compressor of the present utility model, its specific works process is as follows:
Gas imports axial flow compression system by suction chamber 1, and along with the rotational energy of rotor 2 passes to gas by movable vane 7, gas flows along rotor 2, flows out through axial flow section outlet 17;
After supercooler, enter centrifugal compressor system by centrifugal step entrance 18, impeller 8 pairs of gas works done, the temperature and pressure of gas is raised, gas flows out through centrifugal step outlet 19.
Claims (10)
1. a large-scale mixed compressor, comprise suction chamber (1), casing (3), rotor (2), bearing bag (16) and bearing housing (10), thrust bearing (12) and the first spring bearing (30) is provided with in described bearing bag (16), the second spring bearing (11) is provided with in bearing housing (10), described rotor (2) and casing (3) are coaxially set, one end of described rotor (2) is stretched in described bearing bag (16) and is connected described first spring bearing (30) and thrust bearing (12) successively, its the other end stretches in described bearing housing (10), the second spring bearing (11) described in connection,
The outlet end of described suction chamber (1) is connected with the entry end of casing (3);
Described rotor (2) is disposed with in the axial direction axial flow compression system and centrifugal compressor system, and axial flow compression system comparatively centrifugal compressor system near suction chamber (1); Described axial flow compression system comprises being arranged on and holds cylinder (4) between casing (3) and rotor (2), and described centrifugal compressor system comprises and is arranged on epitrochanterian impeller (8); The bottom of described casing (3) is provided with axial flow section outlet (17), centrifugal step outlet (19) and centrifugal end entrance (18), and described axial flow section outlet (17) is connected by pipeline with centrifugal step entrance (18);
It is characterized in that, be provided with dividing plate (22) between described axial flow compression system and centrifugal compressor system, described dividing plate is provided with toroidal cavity in (22), has been disposed radially multiple sheet metal in described toroidal cavity; The outward edge of described dividing plate (22) is connected with casing (3) inwall, adopts side tooth to seal (21) between the inward flange of dividing plate (22) and rotor (2);
The below of described bearing housing (10) is connected with dunnage (31), and described dunnage (31) is installed in (3) on casing.
2. large-scale mixed compressor as claimed in claim 1, it is characterized in that, described hold to be provided with between cylinder (4) and casing (3) regulate cylinder (5), described holding in cylinder (4) is provided with stator blade (6), rotor (2) is provided with movable vane (7), described casing (3) is also provided with and regulates drive unit (14), described adjustment drive unit (14) is connected with described adjustment cylinder (5).
3. large-scale mixed compressor as claimed in claim 1, it is characterized in that, described bearing bag (16) is positioned at suction chamber (1), and described suction chamber (1), casing (3) and bearing bag (16) three's coaxial line distribute; Described bearing bag (16) is fixed in described suction chamber (1) by gusset (15).
4. large-scale mixed compressor as claimed in claim 1, is characterized in that, described axial flow compression system and described centrifugal compressor system adopt and be disposed in order or arrange back-to-back.
5. large-scale mixed compressor as claimed in claim 1, it is characterized in that, the casing (3) at centrifugal step entrance (18) place of described suction chamber (1) ingress and centrifugal compressor system is all provided with water washing device (13).
6. large-scale mixed compressor as claimed in claim 1, it is characterized in that, the arranged outside of the shell (29) of described suction chamber (1) has a support shell (24), and the edge of described support shell (24) embeds in described casing (3).
7. large-scale mixed compressor as claimed in claim 1, it is characterized in that, described casing (3) inwall is vertically provided with the side plate (23) that a longitudinal section is L shape, described bottom of holding the vertical portion of cylinder (4) end connecting lateral plate (23), the horizontal component of described side plate (23) is provided with Diffuser (26).
8. the large-scale mixed compressor as described in as arbitrary in claim 1 to 7, is characterized in that, described pipeline is provided with cooler.
9. the large-scale mixed compressor as described in as arbitrary in claim 1 to 7, it is characterized in that, one end that described rotor (2) is connected with bearing housing (10) is removably provided with Balance disc (9).
10. the large-scale mixed compressor as described in as arbitrary in claim 1 to 7, is characterized in that, described rotor (2) is provided with at least two-stage step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520844037.2U CN205207211U (en) | 2015-10-28 | 2015-10-28 | Large -scale mixed flow compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520844037.2U CN205207211U (en) | 2015-10-28 | 2015-10-28 | Large -scale mixed flow compressor |
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| CN205207211U true CN205207211U (en) | 2016-05-04 |
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| CN201520844037.2U Active CN205207211U (en) | 2015-10-28 | 2015-10-28 | Large -scale mixed flow compressor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939832A (en) * | 2017-04-27 | 2017-07-11 | 中国科学院工程热物理研究所 | A kind of axle wander about as a refugee the heart blisk formula combination compressibility |
| CN107725481A (en) * | 2017-10-10 | 2018-02-23 | 山东大学 | A kind of structure and method for improving centrifugal vapor compressor compression ratio |
| CN109469646A (en) * | 2018-10-22 | 2019-03-15 | 沈阳透平机械股份有限公司 | Space division casing structure |
| CN109751282A (en) * | 2019-02-02 | 2019-05-14 | 沈阳透平机械股份有限公司 | A kind of axial-flow-centrifugal formula air compressor of axial admission |
| CN110242607A (en) * | 2019-06-13 | 2019-09-17 | 山西方洁路路通净化技术有限公司 | A kind of multistage independently rotates the blade compressor structure successively accelerated without stator blade |
| CN114017363A (en) * | 2021-11-02 | 2022-02-08 | 西安热工研究院有限公司 | Carbon dioxide compressor structure is prevented panting by integrative two rotational speed of axial flow high efficiency |
| CN114046535A (en) * | 2021-11-09 | 2022-02-15 | 南京航空航天大学 | Adjustable blowing attached diffuser |
-
2015
- 2015-10-28 CN CN201520844037.2U patent/CN205207211U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939832A (en) * | 2017-04-27 | 2017-07-11 | 中国科学院工程热物理研究所 | A kind of axle wander about as a refugee the heart blisk formula combination compressibility |
| CN107725481A (en) * | 2017-10-10 | 2018-02-23 | 山东大学 | A kind of structure and method for improving centrifugal vapor compressor compression ratio |
| CN109469646A (en) * | 2018-10-22 | 2019-03-15 | 沈阳透平机械股份有限公司 | Space division casing structure |
| CN109469646B (en) * | 2018-10-22 | 2021-06-11 | 沈阳透平机械股份有限公司 | Air separation casing structure |
| CN109751282A (en) * | 2019-02-02 | 2019-05-14 | 沈阳透平机械股份有限公司 | A kind of axial-flow-centrifugal formula air compressor of axial admission |
| CN110242607A (en) * | 2019-06-13 | 2019-09-17 | 山西方洁路路通净化技术有限公司 | A kind of multistage independently rotates the blade compressor structure successively accelerated without stator blade |
| CN114017363A (en) * | 2021-11-02 | 2022-02-08 | 西安热工研究院有限公司 | Carbon dioxide compressor structure is prevented panting by integrative two rotational speed of axial flow high efficiency |
| CN114046535A (en) * | 2021-11-09 | 2022-02-15 | 南京航空航天大学 | Adjustable blowing attached diffuser |
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