CN220726529U - Core stator partition plate structure for compressor of gas station - Google Patents
Core stator partition plate structure for compressor of gas station Download PDFInfo
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- CN220726529U CN220726529U CN202322263379.2U CN202322263379U CN220726529U CN 220726529 U CN220726529 U CN 220726529U CN 202322263379 U CN202322263379 U CN 202322263379U CN 220726529 U CN220726529 U CN 220726529U
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Abstract
The utility model provides a core stator baffle plate structure for a compressor of a gas station, which comprises the following components: a multi-stage separator, an O-shaped sealing ring, a sealing strip and a plurality of guide vanes; the O-shaped sealing ring is sleeved on the outer circumferential surface of the partition board which is positioned between the outlet and the inlet of the compressor and is close to the inlet side, so as to compensate the deformation gap between the partition board and the cylinder body and block leakage; the sealing strip is arranged on the lower half part of the partition plate on the middle partition surface of the compressor to block the inter-stage leakage of the partition plate and reduce the internal gas circulation process; the positioning mode of spigot positioning and joint pin positioning is adopted between the partition boards of the multi-stage partition boards, so that the positioning surface is increased, the positioning precision is improved, and the deformation of the partition boards is reduced; each guide vane is independently embedded and arranged inside the partition plate. The utility model has simple and reasonable structure, strong integrity, simple installation and maintenance operation, effectively avoids the phenomenon of overhigh temperature of outlet process gas, reduces energy consumption, adopts standard parts as main accessories, has simple manufacture and improves the working efficiency of the compressor unit on the premise of lower cost.
Description
Technical Field
The utility model relates to the technical field of compressor of a gas station, in particular to a core stator partition plate structure for a compressor of a gas station.
Background
When the compressor of the gas station operates, the phenomenon that the temperature of outlet process gas is too high exists, the compressor movement is overhauled, the inner cylinder is pulled out to carry out integral disassembly and decomposition inspection on the inner cylinder, and inspection results find that each level of partition boards in the inner cylinder have serious deformation and misalignment (the middle-split surface of the inner cylinder is sunken by 2-3mm, the stagger between each level of partition boards is 0.2-2 mm), each level of gas seal body is deformed, and all port ring gas seals and interstage gas seal gaps are seriously out of tolerance.
According to the inspection result of the inner cylinder, it can be judged that the inner leakage of the gas in the compressor unit is serious and the process gas flows back due to the deformation of the partition plate and the deformation of the gas seal bodies at all levels, so that the temperature of the outlet process gas is overhigh finally, the working efficiency of the compressor unit can be greatly reduced, the energy consumption is increased, and the safe and stable production of enterprises is not facilitated.
The compressor of the gas station at the present stage mainly has the following process adverse phenomena:
1. the process gas at the outlet of the compressor flows back to the inlet, so that the temperature is increased;
2. the stator partition board of the compressor movement has poor positioning and is easy to deform;
wherein, the deformation of the baffle plate of the 2 nd problem is one of the reasons for causing the gas backflow of the 1 st problem, and the other reason for the gas backflow is that the outer cylinder body of the compressor also has deformation phenomenon, because the outer cylinder body of the existing compressor and the baffle plate are sealed by only adopting metal hard connection, as shown in fig. 1, the hard connection sealing type cannot timely compensate the gap caused by the simultaneous deformation of the outer cylinder body and the baffle plate, and the gap is one reason for causing the gas backflow.
The cause of deformation of the separator is mainly affected by the following two aspects:
1. the separator is deformed due to thermal stress due to overheat or uneven heating in the use process, such as fire disaster, irregular welding and the like;
2. and processing residual stress of the separator during processing.
The processing residual stress mainly comes from two aspects, namely, the stress is not thoroughly removed by heat treatment; and secondly, the machining allowance from the heat treatment to the finish machining is too large, secondary machining stress is generated, the stress is released slowly along with the time, the temperature of the process gas rises, the stress release process is accelerated in an auxiliary mode, and the actual deformation condition can be proved, namely, the actual deformation outlet is larger than the inlet because of the high outlet temperature.
Based on the above inspection results and the conclusions drawn by reason analysis, there is currently a need to solve the above difficulties and pain problems existing in the process structure of the existing compressor system.
Disclosure of Invention
In view of this, the utility model aims to design a core stator baffle plate structure for a compressor of a gas station, so as to solve the problems of gas backflow, high outlet temperature, gas leakage caused by deformation of a baffle plate and the like of the existing compressor, reduce energy loss and improve the working efficiency of the compressor.
The utility model provides a core stator baffle plate structure for a compressor of a gas station, which comprises the following components: a multi-stage separator, an O-shaped sealing ring, a sealing strip and a plurality of guide vanes; the O-shaped sealing ring is sleeved between the outlet and the inlet of the compressor, and the outer circumferential surface of the partition board close to the inlet side can be better used for compensating a deformation gap between the partition board and the cylinder body by utilizing the elasticity of the rubber sealing ring, so that the purpose of blocking leakage is achieved;
the sealing strip is arranged on the lower half part of the partition plate on the middle partition surface of the compressor and used for blocking the inter-stage leakage of the partition plate and reducing the internal circulation process of gas;
the positioning type of spigot positioning and joint pin positioning is adopted between the partition boards of the multi-stage partition boards, so that the positioning surface is increased, the partition boards are mutually overlapped and restrained, the positioning precision is improved, and the deformation of the partition boards is reduced; the utility model changes the positioning mode between the partition boards from the existing double-joint pin positioning to the spigot positioning and the joint pin positioning;
each guide vane is independently embedded and arranged in the partition plate, so that later maintenance of equipment is facilitated, and maintenance cost caused by damage of guide vanes is reduced.
The utility model makes the structure of the guide vane of the expanding air into an optimized design, changes the existing integral structure into a guide vane independent structure, and is embedded in the baffle plate body.
Further, the O-shaped sealing ring is made of rubber sealing rings, and the rubber sealing rings are made of the following materials:
natural rubber, silicone rubber, nitrile rubber, chloroprene rubber, fluororubber, ethylene propylene diene rubber, polyurethane rubber, epichlorohydrin rubber, and acrylate rubber.
The rubber gasket is a self-expansion gasket, the gasket made of silicone rubber has good heat resistance, cold resistance, aging resistance and insulation performance, the characteristics of the fluororubber gasket are similar to those of the silicone rubber gasket, but the properties of the fluororubber gasket are not as good as those of the silicone rubber, the hydrogenated butyl cyanide rubber gasket has excellent corrosion resistance, tearing resistance and compression deformation resistance, the mechanical properties of the polyurethane rubber gasket are very good, the wear resistance and the high pressure resistance are far better than those of other rubbers, the sunshine resistance and the weather resistance of the neoprene gasket are very good, the fluorosilicone rubber gasket has the advantages of both fluororubber and silicone rubber, the oil resistance, the solvent resistance, the fuel oil resistance, the high and low temperature resistance are good, the ethylene propylene diene monomer rubber gasket has good weather resistance, ozone resistance, water resistance and chemical resistance, the nitrile rubber gasket is suitable for petroleum hydraulic oil and glycol hydraulic oil and is not suitable for polar solvents, the butyl rubber gasket has particularly good air tightness, good heat resistance, ozone resistance and good insulation performance.
The rubber sealing ring is an annular cover composed of one or more parts, is fixed on one ferrule or gasket and is contacted with the other ferrule or gasket or forms a narrow labyrinth gap, fluid leakage and foreign object invasion are prevented, the rubber sealing ring is simple in structure, good in sealing performance, extremely simple in section structure, self-sealing and reliable in sealing performance. The sealing device is convenient to install, has a wide application range, and can effectively seal air, natural gas and various chemical media by selecting proper rubber materials and proper formula design.
Further, the sealing strip includes, in a cross-sectional form: any one of hollow sealing strip and solid sealing strip.
The hollow sealing strip is mainly characterized by good heat insulation;
the solid sealing strip comprises a solid silica gel sealing strip, and the solid silica gel sealing strip has good sealing performance, is waterproof and leakless, and protects the environment without toxicity; the solid silica gel sealing strip can be heated at high temperature, is not deformed and does not cause harmful substances; the solid silica gel sealing strip has high tensile strength characteristics; the paint does not turn yellow or fade after long-term use; the solid silica gel sealing strip has corona discharge resistance, electric arc resistance, high and low temperature resistance, good anti-aging performance and heat resistance, can be used for a long time at 150 ℃ without characteristic transformation, can be continuously used for 10000 hours at 200 ℃, and can be used for a short time at 250 ℃; the solid silica gel sealing strip has good cold resistance, the service temperature of plastic is generally-20 ℃ to +30 ℃, the solid silica gel sealing strip still has good ductility at-60 ℃ to +200 ℃, and the special low-temperature resistant silica gel material can bear lower temperature.
Further, the cross section shape of the sealing strip is O-shaped.
The sealing strip with the O-shaped section is large in elastic deformation after being compressed, has larger deformation, is convenient for the installation of the sealing strip, has a simple sealing part structure and a compact installation part, can complete the sealing effect by only using one sealing ring, has lighter weight, has self-sealing effect and better sealing performance, and almost can realize no leakage when being used as static seal.
Further, the stop buckle positioning mode in the spigot positioning and joint pin positioning mode is a boss structure and a groove structure, the boss structure and the groove structure are matched for connection positioning, 5 degrees of freedom except axial rotation are limited, and concentricity of the partition plate during assembly can be guaranteed.
Further, the type of the seam allowance pin in the locating type of the seam allowance locating and seam allowance pin is a cylindrical pin, and the cylindrical pin is in transition fit or interference fit with the partition plate, so that 1 degree of freedom of axial rotation between the partition plates is limited.
Further, the material of the separator is low-alloy high-strength structural steel 16Mn. Further, the volute material at the inlet is cast steel ZG16Mn.
16Mn is a low alloy high strength structural steel: the carbon content is 0.1% -0.25%, and main alloy elements such as manganese (Mn), silicon (Si), vanadium (V), niobium (Nb), titanium (Ti) and the like are added. The 16Mn has good comprehensive performance, low-temperature performance, cold stamping performance, welding performance and machinability.
Further, the material of the guide vane is stainless steel or carbon steel with the surface subjected to rust prevention treatment.
Further, the surface rust-preventing treatment type of carbon steel is as follows:
zinc-plated steel sheet. The galvanized steel sheet is a welded steel sheet having a hot dip plating or electrogalvanized layer on the surface, and has excellent corrosion resistance, paintability, formability, and spot weldability. The size of spangles and the thickness of zinc layers of the galvanized steel sheet can indicate the quality of galvanization, and the smaller the thickness the better.
Compared with the prior art, the utility model has the beneficial effects that:
the machine core stator partition board has simple and reasonable structure, strong integrity and simple installation and maintenance operation, effectively avoids the phenomenon of overhigh process gas temperature at the outlet of the compressor, reduces energy consumption, has simple manufacture by taking main accessories as standard components, improves the working efficiency of the compressor unit on the premise of lower cost, and is beneficial to the safe and stable production of enterprises.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model.
In the drawings:
FIG. 1 is a schematic view of a prior art compressor cartridge stator diaphragm construction;
FIG. 2 is a schematic diagram of a structure of a core stator diaphragm for a compressor of a compressor station according to the present utility model;
FIG. 3 is a schematic diagram showing a comparison of a prior art spacer positioning structure and a spacer positioning structure according to an embodiment of the present utility model;
fig. 4 is a diagram of the original design values of the core stator partition structure for the compressor of the compressor station according to the embodiment of the utility model.
The figure is marked with the following description:
1. o-shaped sealing rings, 2, sealing strips, 3, guide vanes, 4, a partition board, 5, an outlet, 6, an inlet, 7 and a spigot are positioned and added with a joint pin, 8, and an independent joint pin in the prior art.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, and third may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.
The utility model provides a core stator baffle plate structure for a compressor of a gas station, which is shown in figures 2 and 3 and comprises the following components: the sealing device comprises a multi-stage partition plate 4, an O-shaped sealing ring 1, a sealing strip 2 and a plurality of guide vanes 3; the O-shaped sealing ring 1 is sleeved between the outlet 5 and the inlet 6 of the compressor, and is arranged on the outer circumferential surface of the partition board 4 near the inlet 6 side, and the elasticity of the rubber sealing ring is utilized to better compensate the deformation gap between the partition board 4 and the cylinder body, so that the purpose of blocking leakage is achieved;
the sealing strip 2 is arranged on the lower half part of the partition board 4 on the middle split surface of the compressor and is used for blocking the inter-stage leakage of the partition board 4 and reducing the internal circulation process of gas;
referring to fig. 3, a spigot positioning and joint pin 7 positioning mode is adopted between the partition boards 4 of the multi-stage partition boards 4, so that positioning surfaces are increased, the partition boards 4 are mutually overlapped and mutually restricted, positioning accuracy is improved, and deformation of the partition boards 4 is reduced; the utility model changes the positioning mode between the partition boards 4 and 4, and changes the single joint pin 8 in the prior art into the spigot positioning and joint pin 7;
each guide vane 3 is independently embedded and arranged in the partition plate 4, so that later maintenance of equipment is facilitated, and maintenance cost caused by damage of guide vanes is reduced.
The utility model optimizes the structure of the guide vane 3 of the expanding air, changes the existing integral structure into the independent structure of the guide vane, and is embedded in the baffle plate 4.
In this embodiment, the O-ring 1 is a rubber ring, and the rubber ring is made of: silicone rubber. The rubber gasket is used as a self-expansion gasket, the gasket made of silicone rubber has good heat resistance, cold resistance, aging resistance and insulation performance, the characteristics of the fluorine rubber gasket are similar to those of the silicone rubber gasket, but the south high temperature resistance and the cold resistance are not as good as those of the silicone rubber, the hydrogenated butyl cyanide rubber gasket has excellent corrosion resistance, tearing resistance and compression deformation resistance, the mechanical performance of the polyurethane rubber gasket is very good, the wear resistance and the high pressure resistance are far better than those of other rubbers, the sunshine resistance and the weather resistance of the chloroprene rubber gasket are very good, the fluorine silicone rubber gasket has the advantages of both fluorine rubber and silicone rubber, the oil resistance, the solvent resistance, the fuel oil resistance, the high and low temperature resistance are good, the ethylene propylene diene monomer rubber gasket has good weather resistance, ozone resistance, water resistance and chemical resistance, the nitrile rubber gasket is suitable for petroleum hydraulic oil and glycol system hydraulic oil and is not suitable for polar solvents, the butyl rubber gasket has particularly good air tightness, good heat resistance, good ozone resistance and good insulation performance.
The rubber sealing ring is an annular cover composed of one or more parts, is fixed on one ferrule or gasket and is contacted with the other ferrule or gasket or forms a narrow labyrinth gap, fluid leakage and foreign object invasion are prevented, the rubber sealing ring is simple in structure, good in sealing performance, extremely simple in section structure, self-sealing and reliable in sealing performance. The sealing device is convenient to install, has a wide application range, and can effectively seal air, natural gas and various chemical media by selecting proper rubber materials and proper formula design.
In this embodiment, the sealing strip 2 is a solid sealing strip.
The solid sealing strip comprises a solid silica gel sealing strip, and the solid silica gel sealing strip has good sealing performance, is waterproof and leakless, and protects the environment without toxicity; the solid silica gel sealing strip can be heated at high temperature, is not deformed and does not cause harmful substances; the solid silica gel sealing strip has high tensile strength characteristics; the paint does not turn yellow or fade after long-term use; the solid silica gel sealing strip has corona discharge resistance, electric arc resistance, high and low temperature resistance, good anti-aging performance and heat resistance, can be used for a long time at 150 ℃ without characteristic transformation, can be continuously used for 10000 hours at 200 ℃, and can be used for a short time at 250 ℃; the solid silica gel sealing strip has good cold resistance, the service temperature of plastic is generally-20 ℃ to +30 ℃, the solid silica gel sealing strip still has good ductility at-60 ℃ to +200 ℃, and the special low-temperature resistant silica gel material can bear lower temperature.
In this embodiment, the cross-sectional shape of the sealing strip 2 is an O-shape.
The sealing strip with the O-shaped section is large in elastic deformation after being compressed, has larger deformation, is convenient for the installation of the sealing strip, has a simple sealing part structure and a compact installation part, can complete the sealing effect by only using one sealing ring, has lighter weight, has self-sealing effect and better sealing performance, and almost can realize no leakage when being used as static seal.
The stop buckle positioning mode in the spigot positioning and saddle pin 7 positioning mode is a boss structure and a groove structure, the boss structure and the groove structure are matched for connection positioning, 5 degrees of freedom except axial rotation are limited, and concentricity of the partition plate 4 during assembly can be guaranteed.
The seam allowance positioning and seam riding pin 7 is in a cylindrical pin type, and the cylindrical pin is in transition fit or interference fit with the partition plate, so that 1 degree of freedom of axial rotation between the partition plates 4 is limited.
In this embodiment, the material of the separator 4 is low alloy high strength structural steel 16Mn. The volute material at the inlet 6 is cast steel ZG16Mn.
16Mn is a low alloy high strength structural steel: the carbon content is 0.1% -0.25%, and main alloy elements such as manganese (Mn), silicon (Si), vanadium (V), niobium (Nb), titanium (Ti) and the like are added. The 16Mn has good comprehensive performance, low-temperature performance, cold stamping performance, welding performance and machinability.
In this embodiment, the guide vane 3 is made of galvanized steel. The galvanized steel sheet is a welded steel sheet having a hot dip plating or electrogalvanized layer on the surface, and has excellent corrosion resistance, paintability, formability, and spot weldability. The smaller the spangle size and the zinc layer thickness of the galvanized steel sheet are, respectively, the thicker the galvanized steel sheet is, the better the galvanization quality is.
Referring to fig. 4, the design values adopted for the core stator diaphragm structure in this embodiment are shown.
The machine core stator partition board provided by the embodiment of the utility model has the advantages of simple and reasonable structure, strong integrity, easiness in installation and maintenance operation, capability of effectively avoiding the phenomenon of overhigh process gas temperature at the outlet of the compressor and reducing energy consumption, simple manufacture, and convenience in manufacturing, and is beneficial to the safe and stable production of enterprises, and the main accessories are standard components.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will be within the scope of the present utility model.
The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model; various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, substitution, or improvement made within the spirit and principle of the present utility model shall fall within the protection scope of the present utility model.
Claims (10)
1. A compressor core stator baffle structure for a compressor of a compressor station, comprising: a multi-stage separator, an O-shaped sealing ring, a sealing strip and a plurality of guide vanes; the O-shaped sealing ring is sleeved between the outlet and the inlet of the compressor, and the outer circumferential surface of the partition board close to the inlet side is sleeved on the outer circumferential surface of the partition board;
the sealing strip is arranged on the lower half part of the partition plate on the middle split surface of the compressor;
the positioning mode of seam allowance positioning and joint pin adding is adopted between the partition boards of the multistage partition boards;
each guide vane is independently embedded and arranged in the partition plate.
2. The compressor cartridge stator diaphragm structure of claim 1 wherein the O-ring is in the form of a rubber seal ring made of:
natural rubber, silicone rubber, nitrile rubber, chloroprene rubber, fluororubber, ethylene propylene diene rubber, polyurethane rubber, epichlorohydrin rubber, and acrylate rubber.
3. The compressor cartridge stator diaphragm structure of claim 1 wherein said seal strip comprises in cross-section: any one of hollow sealing strip and solid sealing strip.
4. A compressor cartridge stator diaphragm structure according to claim 3 wherein said seal strip has an O-shaped cross-sectional shape.
5. The compressor core stator partition board structure according to claim 1, wherein the stop buckle positioning mode of the spigot positioning and saddle pin positioning mode is a boss structure and a groove structure, and the boss structure and the groove structure are matched for connection positioning, so that 5 degrees of freedom except axial rotation are limited, and concentricity during partition board assembly can be ensured.
6. The compressor cartridge stator diaphragm structure of claim 1 wherein the form of the dowel pin in the spigot locating and dowel pin locating form is a cylindrical pin, the cylindrical pin and the diaphragm are in transition fit or interference fit, and the axial rotation of the diaphragm is limited by 1 degree of freedom.
7. The compressor cartridge stator diaphragm structure of claim 1 wherein the diaphragm material is low alloy high strength structural steel 16Mn.
8. The compressor cartridge stator diaphragm structure of claim 1 wherein the material of the guide vane is stainless steel or carbon steel with a surface rust-proof treatment.
9. The compressor cartridge stator diaphragm structure of claim 8 wherein the surface rust inhibitive treatment of carbon steel is of the type:
zinc-plated steel sheet.
10. The compressor cartridge stator diaphragm structure of claim 1 wherein the volute material at the inlet is cast steel ZG16Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263379.2U CN220726529U (en) | 2023-08-23 | 2023-08-23 | Core stator partition plate structure for compressor of gas station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322263379.2U CN220726529U (en) | 2023-08-23 | 2023-08-23 | Core stator partition plate structure for compressor of gas station |
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| Publication Number | Publication Date |
|---|---|
| CN220726529U true CN220726529U (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322263379.2U Active CN220726529U (en) | 2023-08-23 | 2023-08-23 | Core stator partition plate structure for compressor of gas station |
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| Country | Link |
|---|---|
| CN (1) | CN220726529U (en) |
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2023
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