CN113530787A - Synchronous two-stage compressor - Google Patents

Synchronous two-stage compressor Download PDF

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Publication number
CN113530787A
CN113530787A CN202111029331.4A CN202111029331A CN113530787A CN 113530787 A CN113530787 A CN 113530787A CN 202111029331 A CN202111029331 A CN 202111029331A CN 113530787 A CN113530787 A CN 113530787A
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China
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compression chamber
compression
cylinder
valve
air inlet
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CN202111029331.4A
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Chinese (zh)
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罗嘉文
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B25/00—Multi-stage pumps
    • F04B25/02—Multi-stage pumps of stepped piston type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
    • F04B39/0016—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons with valve arranged in the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block

Abstract

The invention provides a synchronous two-stage compressor, which comprises a cylinder body, wherein a plurality of cylinders are arranged in the cylinder body, a compression cavity is arranged in each cylinder, a second-stage piston, an interstage one-way valve and a first-stage piston are arranged in each compression cavity, the first-stage piston and the second-stage piston are linked through a synchronizing shaft, a central hole is formed in the middle of the interstage one-way valve, a first compression chamber and a second compression chamber are arranged in each compression cavity, an air inlet channel and an air outlet channel are respectively arranged on the outer side of the cylinder body, the cross sectional area of the first compression chamber is larger than that of the second compression chamber, an air inlet one-way valve communicated with the first compression chamber is arranged in each cylinder, an exhaust one-way valve communicated with the second compression chamber is arranged in each cylinder, the problem that the compressed exhaust of each stage of cylinder in the compressor needs to bear back pressure load generated by exhaust pressure feedback to reduce the working power of motive power and seal ring assemblies on piston rods are easy to leak is solved, The sealing ring is easy to damage, and the problem of increased leakage of gas in the compression cylinder is caused after the sealing ring assembly is damaged.

Description

Synchronous two-stage compressor
Technical Field
The invention relates to the technical field of compressors, in particular to a synchronous two-stage compressor.
Background
Present gas compressor mostly is single-stage compression and multistage compression, horizontal parallel symmetry jar is adopted to its cylinder body majority, promote the cross head by the bent axle connecting rod, the cross head is connected with the piston rod, the piston rod is connected with the piston and drives the piston and be reciprocating motion, compress the gas in the jar body, it is sealed by the sealing ring subassembly that the multiunit packs between piston rod and the cylinder body, a compressed gas and control leakage for in the shutoff cylinder, multistage compression is compressed by one-level jar after the compression through the cooling entering second grade jar compression, its device has following shortcoming:
1. the cylinder body is bulky and occupies a large space.
2. Because the piston rod is in a motion state, the packing seal ring assembly is difficult to completely seal, so that gas is easy to leak, the packing seal ring assembly is easy to wear, the gas is easy to leak after the packing seal ring assembly is worn, the gas leaks out of the machine case, the gas is lost and pollutes the environment, and dangers such as fire disasters are easy to occur.
3. The compression exhaust of each stage of cylinder bears the back pressure load generated by the feedback of the exhaust pressure so as to reduce the work power of the prime power.
4. The operating mode practical range of compressor is narrow, to admission pressure, exhaust pressure and displacement intelligent adaptation in certain within range, can only use different compressor models to accomplish to different operating modes, in case the operating mode appears, if: the requirements of wellhead pressure air inlet pressure, pressure and exhaust pressure of an external pipeline and exhaust volume change, and the compressor cannot be used when the compressor exceeds the range.
Disclosure of Invention
The invention aims to provide a synchronous two-stage compressor, which solves the problems that the working power of a prime power is reduced because each stage of cylinder in the compressor is compressed and exhausted to bear back pressure load generated by exhaust pressure feedback, and a sealing ring assembly on a piston rod is easy to damage and causes gas leakage in a compression cylinder after the sealing ring assembly is damaged.
In order to solve the technical problems, the invention adopts the following technical scheme:
a synchronous two-stage compressor comprises a cylinder body, wherein a plurality of cylinders which are arranged in a straight line are arranged in the cylinder body, a compression cavity is arranged in each cylinder, a two-stage piston, an interstage one-way valve and a one-stage piston are sequentially arranged in each compression cavity from top to bottom, the interstage one-way valve and the one-stage piston are provided with center holes, the two-stage piston and the one-stage piston are linked through a synchronizing shaft, the middle part of the interstage one-way valve is provided with a center hole for accommodating the synchronizing shaft, a first compression chamber and a second compression chamber are respectively formed between the one-stage piston and the interstage one-way valve and between the interstage one-way valve and the two-stage piston in each compression cavity, an air inlet channel and an air outlet channel which are communicated with the first compression chamber and the second compression chamber are respectively arranged on the outer side of the cylinder body, the cross section of the first compression chamber is larger than that of the second compression chamber, and an air inlet one-way valve communicated with the first compression chamber is arranged in each cylinder, and when the primary piston is compressed in the first compression chamber, the air inlet check valve and the air outlet check valve work simultaneously so that the exhaust stroke in the first compression chamber and the air inlet stroke in the second compression chamber are performed synchronously.
The technical scheme is that a third compression chamber is formed between the upper end of the second-stage piston and the top of the compression cavity, a concentric one-way valve is arranged at the top of the third compression chamber, a third compression chamber exhaust pipe communicated with the concentric one-way valve is arranged on the outer side of the cylinder body, a three-way change-over valve is connected to the third compression chamber exhaust pipe, and an air inlet passage intermediate valve and an air exhaust passage intermediate valve are arranged in the middle of the air inlet passage and the air exhaust passage respectively.
The technical scheme is that one end of the three-way change-over valve is communicated with a third compression chamber exhaust pipe, the other two ends of the three-way change-over valve are respectively communicated with an external conveying pipeline and an internal circulating pipeline, the air inlet channel and the air exhaust channel are respectively communicated with a main air inlet pipe and a main exhaust pipe, the internal circulating pipeline is connected with the air inlet pipe, and the external conveying pipeline is connected with the main exhaust pipe.
In a further aspect, the cross-sectional area of the first compression chamber is three times the cross-sectional area of the second compression chamber.
The further technical scheme is that the primary piston drives the primary piston to do up-and-down linear reciprocating motion through a crankshaft connecting rod connected to the lower end of the primary piston.
A third compression chamber air inlet channel communicated with the concentric one-way valve is arranged on one side of the cylinder body.
The further technical proposal is that an air inlet valve cover corresponding to the air inlet one-way valve is arranged on the outer side of the cylinder body, and an air outlet valve cover corresponding to the air outlet one-way valve is arranged on the outer side of the cylinder body.
The further technical scheme is that the cylinder is one of two rows of cylinders, four rows of cylinders or six rows of cylinders.
Compared with the prior art, the invention has at least one of the following beneficial effects:
1. the cylinders are arranged in the cylinder body in a linear arrangement mode, and the cylinders are arranged in an in-line cylinder arrangement mode, so that the whole compressor is compact in structure, smaller in size and small in occupied space compared with a horizontal parallel symmetrical cylinder.
2. The first-stage piston and the second-stage piston are connected through the synchronizing shaft to realize the linkage of the first-stage piston and the second-stage piston, an interstage check valve is arranged between the first-stage piston and the second-stage piston, a central hole of the interstage check valve is closely matched with the synchronizing shaft, gas is prevented from flowing back to the first compression chamber under the condition of keeping axial movement, a packing sealing ring assembly on the interstage check valve is omitted, even if a small amount of leakage exists between the central hole of the interstage check valve and the synchronizing shaft, the leaked gas can only flow back to the first compression chamber, and the gas is compressed again and collected together with inlet gas and is compressed to the second compression chamber through the interstage check valve without leaking to the outer side of the cylinder body. The cost of the corresponding link of the packing seal assembly is also saved.
3. Compressed gas in the first compression chamber is directly pressed into a second compression chamber which is synchronously sucked through the interstage one-way valve, and gas is pressed out through the exhaust one-way valve when the second compression chamber performs a compression stroke, so that secondary compression is completed. In the process, the first compression chamber does not bear the back pressure load generated by the feedback of the exhaust pressure, and only bears the load generated by the volume ratio (3:1) of the first compression chamber and the second compression chamber. The cross-sectional area of the second compression chamber is three times smaller than that of the first compression chamber, and according to the pressure transmission principle, the larger the stress area is, the larger the pressure required for compression in the compression chamber is, and the smaller the stress area is, the smaller the pressure required for compression in the compression chamber is, so that the load is greatly reduced, and the effective working efficiency of the compressor is improved.
4. And regulating the three-way change-over valve according to the working conditions of different environments to enable the compressor to work normally.
Drawings
Fig. 1 is a sectional view of a synchronous two-stage compressor according to the present invention.
Fig. 2 is a side view of one side of the body of the present invention.
Fig. 3 is a side view of the other side of the body of the present invention.
Icon: 1-first-stage piston, 2-second-stage piston, 3-synchronous shaft, 4-interstage check valve, 5-first compression chamber, 6-second compression chamber, 7-third compression chamber, 8-concentric check valve, 9-inlet check valve, 10-exhaust check valve, 11-third compression chamber inlet channel, 12-third compression chamber outlet channel, 13-three-way change-over valve, 14-internal circulation channel, 15-external transmission channel, 16-exhaust channel intermediate valve, 17-exhaust valve cover, 18-inlet channel, 19-exhaust channel, 20-exhaust channel intermediate valve, 21-exhaust valve cover and 22-cylinder body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example (b):
fig. 1 to 3 show a preferred embodiment of a synchronous two-stage compressor according to the present invention, the synchronous two-stage compressor in this embodiment specifically includes a cylinder 22, the cylinder 22 houses a plurality of cylinders arranged in a straight line, the cylinders are provided with compression cavities, the compression cavities are provided with a two-stage piston 2, an interstage check valve 4 provided with a central hole, and a one-stage piston 1, which are sequentially arranged from top to bottom, the one-stage piston 1 and the two-stage piston 2 are linked by a synchronizing shaft 3, the middle portion of the interstage check valve 4 is provided with a central hole for accommodating the synchronizing shaft 3, the compression cavities respectively form a first compression chamber 5, a second compression chamber 6, and a third compression chamber 7 between the one-stage piston 1 and the interstage check valve 4, between the interstage check valve 4 and the two-stage piston 2, and between the upper end of the two-stage piston 2 and the top of the compression cavities, the outside of the cylinder 22 is provided with a third compression chamber 11 communicated with the third compression chamber 7, the top of third compression chamber 7 is equipped with concentric check valve 8, the outside of cylinder body 22 is equipped with third compression chamber blast pipe 12 that is linked together with concentric check valve 8, be connected with three-way change-over valve 13 on the third compression chamber blast pipe 12, the outside of cylinder body 22 is equipped with intake duct 18 and exhaust passage 19 that are linked together with first compression chamber 5 and second compression chamber 6 respectively, the middle part of intake duct 18 and exhaust passage 19 is equipped with intake duct intermediate valve 16 and exhaust passage intermediate valve 20 respectively, when one-level piston 1 compresses in first compression chamber 5, intake check valve 9 and exhaust check valve 10 simultaneous working to make the exhaust stroke in first compression chamber 5 and the intake stroke in the second compression chamber 6 go on in step.
The primary piston 1, the first compression chamber 5 and the air inlet check valve 9 form a primary compression cylinder, the secondary piston 2, the second compression chamber 6 and the air exhaust check valve 10 form a secondary compression cylinder, the number of the cylinders is one of two rows of cylinders, four rows of cylinders or six rows of cylinders, the four rows of cylinders are taken as four cylinders for compressing air, the secondary compression cylinder and the primary compression cylinder which are arranged up and down are arranged in each cylinder, the lower end of the primary piston 1 in the primary compression cylinder is connected with a crank cross head connecting rod, a connecting piece is omitted, and the probability of mechanical failure is reduced.
The primary piston 1 moves downwards to complete air intake through the air intake one-way valve 9, the secondary piston 2 moves upwards synchronously through the synchronizing shaft 3 to serve as an air intake stroke, and gas is pressed into the secondary compression cylinder through the interstage one-way valve 4 to complete primary compression. The secondary piston 2 moves downwards, the primary compression cylinder performs an intake stroke, the secondary compression cylinder performs a compression stroke synchronously, and gas is discharged from the exhaust check valve 10 through secondary compression and enters an exhaust pipeline which is arranged externally and connected with the exhaust check valve 10, so that secondary compression is completed. Thus, the feedback pressure of the exhaust pipeline is blocked by the exhaust check valve 10 and can not flow back into the secondary compression cylinder, the gas in the primary compression cylinder is pressed into the secondary compression cylinder which sucks the gas synchronously, and the exhaust pipeline only bears the self-generated compression load of the volume ratio of the first compression chamber 5 to the second compression chamber 6. The strokes of the first-stage piston 1 in the first compression chamber 5 and the second-stage piston 2 in the second compression chamber 6 are consistent, the cross sectional area of the first compression chamber 5 is three times of that of the second compression chamber 6, and according to the pressure transmission principle, the larger the stressed area is, the larger the pressure required for compression in the compression chambers is, and the smaller the stressed area is, the smaller the pressure required for compression in the compression chambers is, so that the load born by an exhaust pipeline is greatly reduced, and the effective working efficiency of the compressor is improved.
Since the interstage check valve 4 is arranged between the first compression chamber 5 and the second compression chamber 6, the center hole of the interstage check valve 4 is closely matched with the synchronizing shaft 3, the synchronizing shaft 3 prevents gas from flowing back to the first compression chamber 5 under the condition of keeping axial movement, and the gap between the synchronizing shaft 3 and the interstage check valve 4 is set within a minimum range, and the gap is 0.03 mm. Therefore, the synchronous two-stage compressor in the application does not need to be sealed by a packing seal ring assembly, even if a small amount of leakage exists between the central hole of the interstage check valve 4 and the synchronous shaft 3, the gas can only flow back into the first compression chamber 5 and is compressed again together with the inlet gas to be compressed to the second compression chamber 6 through the interstage check valve 4, and the leaked gas cannot leak to the outer side of the cylinder body. This also saves the costs associated with maintaining and replacing the packing seal assembly.
In order to improve the practical range of working condition, make the compressor in this application adapt to the well head inlet pressure, can normally work when defeated pipeline 15 exhaust pressure and displacement take place great range change outward, synchronous doublestage compressor in this application uses when defeated pipeline 15 exhaust pressure is low and the displacement demand is big outward, can convert the tee bend change-over valve 13 that connects on the third compression room blast pipe 12 into and communicate with each other with defeated pipeline 15 outward, tee bend change-over valve 13 and inlet line junction are closed, be operating condition this moment, open inlet duct intermediate valve 16 and exhaust passage intermediate valve 20 in the middle of the inlet duct 18 and the exhaust passage 19 in the cylinder body outside, the one-level compression cylinder, second grade compression cylinder and third compression room 7 merge work together. The compressor of this application is one-stage parallel compression, and the total displacement is the sum of the first compression chamber 5 and the third compression chamber 7, and the maximum displacement is achieved. When the exhaust pressure of the external transmission pipeline 15 is increased to the required load capacity, the three-way change-over valve 13 on the exhaust pipeline 19 of the third compression chamber can be changed to be communicated with the air inlet channel 18, the joint of the three-way change-over valve 13 and the external transmission pipeline 15 is closed, at the moment, the internal circulation non-working state is adopted to reduce the load capacity, the compressed air in the first compression chamber 5 is pressed into the second compression chamber 6 which is synchronously used as an air suction stroke through the interstage one-way valve 4, the air is compressed for the second time when the secondary piston 2 of the second compression chamber 6 descends to perform a compression stroke, and is discharged through the exhaust one-way valve 10, so that the compressor becomes two-stage incremental compression, the exhaust pressure is greatly increased, for example, when the exhaust pressure of the external transmission pipeline 15 is further increased and the intake pressure is increased to the required load capacity, the intermediate valve 16 of the air inlet channel and the intermediate valve 20 of the exhaust channel between the air inlet channel 18 and the exhaust pipeline 19 outside the cylinder body can be closed or closed, and adjusting the gas flow rate to reduce or close the air inflow of one group of cylinders so as to reduce the load and ensure the normal work of the compressor.
An air inlet one-way valve 9 communicated with the first compression chamber 5 is arranged in each cylinder, and an air inlet valve cover 17 corresponding to the air inlet one-way valve 9 is arranged on the outer side of the cylinder body; an exhaust one-way valve 10 communicated with the second compression chamber 6 is arranged in each cylinder, and an exhaust valve cover 21 corresponding to the exhaust one-way valve 10 is arranged on the outer side of the cylinder body.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (8)

1. A synchronous two-stage compressor characterized by: the cylinder comprises a cylinder body (22), a plurality of cylinders which are arranged in a straight line are arranged in the cylinder body (22), a compression cavity is arranged in each cylinder, a secondary piston (2), an interstage check valve (4) with a central hole and a primary piston (1) are sequentially arranged in each compression cavity from top to bottom, the primary piston (1) and the secondary piston (2) are linked through a synchronizing shaft (3), the middle of the interstage check valve (4) is provided with the central hole for accommodating the synchronizing shaft (3), a first compression chamber (5) and a second compression chamber (6) are respectively formed between the primary piston (1) and the interstage check valve (4) and between the interstage check valve (4) and the secondary piston (2) in each compression cavity, and an air inlet channel (18) and an air outlet channel (19) which are communicated with the first compression chamber (5) and the second compression chamber (6) are respectively arranged on the outer side of the cylinder body (22), the cross-sectional area of the first compression chamber (5) is larger than that of the second compression chamber (6), an air inlet one-way valve (9) communicated with the first compression chamber (5) is arranged in each cylinder, an air exhaust one-way valve (10) communicated with the second compression chamber (6) is arranged in each cylinder, and when the primary piston (1) is compressed in the first compression chamber (5), the air inlet one-way valve (9) and the air exhaust one-way valve (10) work simultaneously, so that an air exhaust stroke in the first compression chamber (5) and an air inlet stroke in the second compression chamber (6) are performed synchronously.
2. A synchronous two-stage compressor as set forth in claim 1, characterized in that: form third compression chamber (7) between the upper end of second grade piston (2) and the top in compression chamber, the top of third compression chamber (7) is equipped with concentric check valve (8), the outside of cylinder body (22) is equipped with third compression chamber blast pipe (12) that are linked together with concentric check valve (8), be connected with three-way change-over valve (13) on third compression chamber blast pipe (12), the middle part of intake duct (18) and exhaust duct (19) is equipped with intake duct intermediate valve (16) and exhaust duct intermediate valve (20) respectively.
3. A synchronous two-stage compressor as set forth in claim 2, characterized in that: one end of the three-way change-over valve (13) is communicated with the third compression chamber exhaust pipe (12), the other two ends of the three-way change-over valve are respectively communicated with an external conveying pipeline (15) and an internal circulating pipeline (14), the air inlet channel (18) and the air outlet channel (19) are respectively communicated with a main air inlet pipe and a main exhaust pipe, the internal circulating pipeline (14) is connected with the air inlet pipe, and the external conveying pipeline (15) is connected with the main exhaust pipe.
4. A synchronous two-stage compressor as set forth in claim 1, characterized in that: the cross-sectional area of the first compression chamber (5) is three times the cross-sectional area of the second compression chamber (6).
5. A synchronous two-stage compressor as set forth in claim 1, characterized in that: the primary piston (1) drives the primary piston (1) to do up-and-down linear reciprocating motion through a crankshaft connecting rod connected to the lower end of the primary piston (1).
6. A synchronous two-stage compressor as set forth in claim 1, characterized in that: and a third compression chamber air inlet channel (11) communicated with the concentric check valve (8) is arranged on one side of the cylinder body (22).
7. A synchronous two-stage compressor as set forth in claim 1, characterized in that: an air inlet valve cover (17) corresponding to the air inlet one-way valve (9) is arranged on the outer side of the cylinder body (22), and an air outlet valve cover (21) corresponding to the air outlet one-way valve (10) is arranged on the outer side of the cylinder body (22).
8. A synchronous two-stage compressor as claimed in any one of claims 1 to 7, wherein: the cylinder is one of two-row cylinders, four-row cylinders or six-row cylinders.
CN202111029331.4A 2021-09-03 2021-09-03 Synchronous two-stage compressor Pending CN113530787A (en)

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Publication number Priority date Publication date Assignee Title
CN117108476A (en) * 2023-10-24 2023-11-24 自贡诺力斯百盛压缩机有限公司 Variable-frequency gas compressor
CN117231585A (en) * 2023-11-16 2023-12-15 河北智昆精密传动科技有限公司 Speed reducer load mechanism
WO2024008141A1 (en) * 2022-07-06 2024-01-11 浙江千机智能科技有限公司 Power apparatus and energy storage system
WO2024008136A1 (en) * 2022-07-06 2024-01-11 浙江千机智能科技有限公司 Power apparatus

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CN110094319A (en) * 2019-05-08 2019-08-06 北京理工大学 Multi-cascade two-cylinder type linear compressor
CN215633579U (en) * 2021-09-03 2022-01-25 罗嘉文 Synchronous two-stage compressor

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CN203201743U (en) * 2013-04-09 2013-09-18 北京康斯特仪表科技股份有限公司 Folding-back type coaxial gas booster pump
US20170002801A1 (en) * 2015-07-01 2017-01-05 Lg Electronics Inc Linear compressor
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Cited By (6)

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Publication number Priority date Publication date Assignee Title
WO2024008141A1 (en) * 2022-07-06 2024-01-11 浙江千机智能科技有限公司 Power apparatus and energy storage system
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CN117108476B (en) * 2023-10-24 2024-01-23 自贡诺力斯百盛压缩机有限公司 Variable-frequency gas compressor
CN117231585A (en) * 2023-11-16 2023-12-15 河北智昆精密传动科技有限公司 Speed reducer load mechanism
CN117231585B (en) * 2023-11-16 2024-01-09 河北智昆精密传动科技有限公司 Speed reducer load mechanism

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