CN210068545U

CN210068545U - Centrifugal compressor oil seal air seal control

Info

Publication number: CN210068545U
Application number: CN201920199719.0U
Authority: CN
Inventors: 郭战红; 梁小丽; 李伟红; 马明明; 周勇; 郭建军
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-15
Filing date: 2019-02-15
Publication date: 2020-02-14
Anticipated expiration: 2029-02-15

Abstract

The utility model discloses a centrifugal compressor oil blanket airtight control relates to sealed technical field, including control module, centrifugal compressor, gear box, axial compressor and tail gas turbine, its characterized in that: the control module comprises a normally closed hand valve, a first pressure gauge, a coarse filter, a normally closed ball valve, a normally open ball valve, a self-supporting pressure reducing valve, a second pressure gauge, a first stop valve, a manual valve, a flow meter, a second stop valve, a third pressure gauge and a second normally closed hand valve; has the advantages that: the pressure gauge and the flowmeter are added to a pipeline which enters the oil seal gas, so that the process quantification operation is facilitated, the entering amount of the seal gas is quantified, and the whole oil system is in a good balance state and the oil mist fan can better run; oil seal sealing gas is arranged at the positions, close to the material sides, of the oil seals at the two ends of the centrifugal compressor, so that pollution of harmful media overflowing when a sealing cavity for sealing material media fails to the lubricating oil is prevented conveniently, and the service life of the lubricating oil is prolonged.

Description

Centrifugal compressor oil seal air seal control

Technical Field

The utility model relates to a sealed technical field especially relates to a centrifugal compressor oil blanket is airtight to be controlled.

Background

At present, when the unit starts the process operation, the control of the sealing air volume of the arranged oil-sealed air pipeline is controlled by manual operation of process personnel through experience, if the opening is too large, the sealing effect is better, but the sealing gas will enter the oil system, the working load of the oil mist fan is increased, the discharge amount of the fan is larger, in order to keep the micro negative pressure or a certain vacuum degree of the oil tank, the process also needs to adjust the valve opening of the oil mist blower to keep the balance of an oil system, if the opening is too small, the sealing function of oil gas can not be achieved, the operation is difficult, the valve opening and the flow change of the sealing gas have no reference, uncertainty is brought to the safe operation of process personnel, meanwhile, the potential pollution hazard is brought to the safe use of the lubricating oil quality, and the lubricating oil is polluted by harmful media overflowing when the sealing cavities of the sealing material media at the two ends of the compressor fail.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centrifugal compressor oil seals airtight control just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a centrifugal compressor oil seals gas seal control, includes control module, centrifugal compressor, gear box, axial compressor and tail gas turbine, its characterized in that: and the control module is respectively connected with the two shaft ends of the centrifugal compressor, the two shaft ends of the gear box, the two shaft ends of the axial compressor and the two shaft ends of the tail gas turbine in a sealing way through pipelines.

Further, the control module comprises a first flange plate, a second flange plate, a third flange plate, a fourth flange plate, a fifth flange plate, a sixth flange plate, a normally closed hand valve, a first pressure gauge, a coarse filter, a normally closed ball valve, a normally open ball valve, a self-supporting pressure reducing valve, a second pressure gauge, a first stop valve, a manual valve, a flowmeter, a second stop valve, a third pressure gauge, a seventh flange plate and a normally closed hand valve, wherein one end of the first stop valve is hermetically connected with the second pressure gauge through a pipeline, the other end of the first stop valve is hermetically connected with the first flange plate, the second flange plate, the third flange plate, the fourth flange plate, the fifth flange plate and the sixth flange plate through pipelines, the manual valve and the flowmeter are sequentially and hermetically installed on the pipelines, one end of the first stop valve, far away from the second pressure gauge, is hermetically connected with the seventh flange plate through a pipeline, and the normally open ball valve and the pipeline are sequentially installed on the pipelines, The self-supporting relief pressure valve the normally closed ball valve coarse filter with the normally closed ball valve, coarse filter parallel connection has first manometer, the normally closed ball valve coarse filter the normally closed ball valve parallel connection has first normally closed hand valve, the self-supporting relief pressure valve open the ball valve parallel connection and have second normally closed hand valve, be close to first ring flange, second ring flange, third ring flange, fourth ring flange, fifth ring flange and sixth ring flange one end pipeline with second stop valve one end sealing connection, the second stop valve other end with the third manometer passes through pipe sealing connection.

Furthermore, the first flange plate and the second flange plate are respectively connected with two shaft ends of the centrifugal compressor through pipelines, the second flange plate and the third flange plate are respectively connected with two shaft ends of the gear box through pipelines, the third flange plate and the fourth flange plate are respectively connected with two shaft ends of the axial flow compressor through pipelines, and the fifth flange plate and the sixth flange plate are respectively connected with two shaft ends of the tail gas turbine through pipelines.

Further, the centrifugal compressor and the axial flow compressor are meshed and connected through the gear in the gear box, and the axial flow compressor is coaxially connected with the tail gas turbine.

Further, the control module is fixedly arranged on the fixing frame.

Furthermore, the bottom feet of the fixing frame are cross rods with U-shaped cross sections.

The beneficial effects of the utility model reside in that: the pressure gauge and the flowmeter are added to a pipeline which enters the oil seal gas, so that the process quantification operation is facilitated, the entering amount of the seal gas is quantified, and the whole oil system is in a good balance state and the oil mist fan can better run; oil seal sealing gas is arranged at the positions, close to the material sides, of the oil seals at the two ends of the centrifugal compressor, so that pollution of harmful media overflowing when a sealing cavity for sealing material media fails to the lubricating oil is prevented conveniently, and the service life of the lubricating oil is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic flow chart of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a right side view of the present invention.

Fig. 4 is a plan view of the present invention.

Reference numerals: 1. a control module; 2. a centrifugal compressor; 3. a gear case; 4. an axial flow compressor; 5. an exhaust gas turbine; 6. a first flange plate; 7. a second flange plate; 8. a third flange plate; 9. a fourth flange plate; 10. a fifth flange plate; 11. a sixth flange plate; 12. a first normally closed hand valve; 13. a first pressure gauge; 14. a coarse filter; 15. a normally closed ball valve; 16. a normally open ball valve; 17. a self-supporting pressure relief valve; 18. a second pressure gauge; 19. a first shut-off valve; 20. a manual valve; 21. a flow meter; 22. a second stop valve; 23. a third pressure gauge; 24. a fixed mount; 25. and a seventh flange.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1 to 4, a centrifugal compressor oil-seal air-seal control device includes a control module 1, a centrifugal compressor 2, a gear box 3, an axial flow compressor 4 and a tail gas turbine 5, and is characterized in that: the control module 1 comprises a first flange plate 6, a second flange plate 7, a third flange plate 8, a fourth flange plate 9, a fifth flange plate 10, a sixth flange plate 11, a normally closed hand valve, a first pressure gauge 13, a coarse filter 14, a normally closed ball valve 15, a normally open ball valve 16, a self-supporting pressure reducing valve 17, a second pressure gauge 18, a first stop valve 19, a hand valve 20, a flow meter 21, a second stop valve 22, a third pressure gauge 23, a seventh flange plate 25 and a second normally closed hand valve, wherein one end of the first stop valve 19 is hermetically connected with the second pressure gauge 18 through a pipeline, the second pressure gauge 18 is used for detecting air pressure, the other end of the first stop valve 19 is hermetically connected with the first flange plate 6, the second flange plate 7, the third flange plate 8, the fourth flange plate 9, the fifth flange plate 10 and the sixth flange plate 11 through pipelines respectively, and the hand valve 20 and the flow meter 21 are sequentially hermetically installed on the pipelines, the manual valve 20 is used for controlling air intake of each pipeline, the flowmeter 21 is used for detecting flow, one end of the first stop valve 19, far away from the second pressure gauge 18, is hermetically connected with the seventh flange 25 through a pipeline, a normally open ball valve 16, a self-supporting pressure reducing valve 17, a normally open ball valve 16, a normally closed ball valve 15, a coarse filter 14 and a normally closed ball valve 15 are sequentially arranged on the pipeline, the first normally closed hand valve 12 and the normally closed ball valve 15 are used for switching an air intake line, the second normally closed hand valve and the normally open ball valve 16 are used for switching an air intake line, the self-supporting pressure reducing valve 17 is used for controlling pressure, the coarse filter 14 is used for filtering, the coarse filter 14 is connected in parallel with the first pressure gauge 13, the normally closed ball valve 15, the coarse filter 14 and the normally closed ball valve 15 are connected in parallel with the first normally closed hand valve 12, the normally open ball valve 16, the self-supporting pressure reducing valve, One end of a third flange 8, the other end of the second stop valve 22 is connected with a third pressure gauge 23 through a pipeline in a sealing way, the first stop valve 19 and the second stop valve 22 are used for cutting, the first flange 6 and the second flange 7 are respectively connected with two shaft ends of the centrifugal compressor 2 through pipelines, the second flange 7 and the third flange 8 are respectively connected with two shaft ends of the gear box 3 through pipelines, the third flange 8 and the fourth flange 9 are respectively connected with two shaft ends of the axial compressor 4 through pipelines, the fifth flange 10 and the sixth flange 11 are respectively connected with two shaft ends of the exhaust turbine 5 through pipelines, the first flange 6, the second flange 7, the third flange 8, the fourth flange 9, the fifth flange 10, the sixth flange 11 and the seventh flange 25 are used for connecting, the centrifugal compressor 2 is meshed with the axial flow compressor 4 through a gear in the gear box 3, and the axial flow compressor 4 is coaxially connected with the tail gas turbine 5; the control module 1 is fixedly arranged on the fixed frame 24, so that the movement and the use are convenient; the bottom feet of the fixing frame 24 are cross rods with U-shaped cross sections, so that manufacturing raw materials are saved, and the standing is more stable.

The working principle is as follows: air is fed from the seventh flange 25, when filtering is needed, the normally closed ball valve 15 is opened, the coarse filter 14 filters, the first pressure gauge 13 detects the pressure difference at two ends of the coarse filter 14, when filtering is not needed, the normally closed hand valve is opened to directly feed air, when the air pressure is unstable, the air pressure is adjusted through the normally open ball valve 16 through the self-supporting pressure reducing valve 17, when the air pressure is stable, the normally open ball valve 16 is closed, the normally closed hand valve is opened to directly feed air, the first pressure gauge 13 detects the air feeding pressure, the on-off of the hand valve 20 is controlled, the pipelines where the first flange 6, the second flange 7, the third flange 8, the fourth flange 9, the fifth flange 10 and the sixth flange 11 are located are respectively ventilated, the flow meter 21 detects the flow, the second pressure gauge 18 detects the air pressure of each pipeline, and the quantitative operation control is realized according to the flow meter 21.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a centrifugal compressor oil seals gas seal control, includes control module (1), centrifugal compressor (2), gear box (3), axial compressor (4) and tail gas turbine (5), its characterized in that: the control module (1) is respectively connected with the two shaft ends of the centrifugal compressor (2), the two shaft ends of the gear box (3), the two shaft ends of the axial flow compressor (4) and the two shaft ends of the tail gas turbine (5) in a sealing way through pipelines.

2. The centrifugal compressor oil-seal control of claim 1, wherein: the control module (1) comprises a first flange plate (6), a second flange plate (7), a third flange plate (8), a fourth flange plate (9), a fifth flange plate (10), a sixth flange plate (11), a normally closed hand valve, a first pressure gauge (13), a coarse filter (14), a normally closed ball valve (15), a normally open ball valve (16), a self-supporting pressure reducing valve (17), a second pressure gauge (18), a first stop valve (19), a manual valve (20), a flow meter (21), a second stop valve (22), a third pressure gauge (23), a seventh flange plate (25) and a second normally closed hand valve, one end of the first stop valve (19) is in sealing connection with the second pressure gauge (18) through a pipeline, and the other end of the first stop valve (19) is respectively in sealing connection with the first flange plate (6), the second flange plate (7), the third flange plate (8) through pipelines, Fourth ring flange (9), fifth ring flange (10) and sixth ring flange (11) sealing connection and pipeline in proper order on the sealing connection have manual valve (20) with flowmeter (21), first stop valve (19) are kept away from second manometer (18) one end through the pipeline with seventh ring flange (25) sealing connection and pipeline are installed in proper order normally open ball valve (16), self-supporting relief pressure valve (17), normally closed ball valve (15) and coarse filter (14) have in parallel first manometer (13), coarse filter (14), normally closed ball valve (15) have first normally closed hand valve (12) in parallel, normally open ball valve (16), self-supporting relief pressure valve (17), normally open ball valve has in parallel second normally closed hand valve, is close to first ring flange (6), second ring flange (7), And one end of the third flange plate (8), the fourth flange plate (9), the fifth flange plate (10) and the sixth flange plate (11) is connected with one end of the second stop valve (22) in a sealing way, and the other end of the second stop valve (22) is connected with the third pressure gauge (23) in a sealing way through a pipeline.

3. The centrifugal compressor oil-seal control of claim 2, wherein: the first flange plate (6) and the second flange plate (7) are respectively connected with two shaft ends of the centrifugal compressor (2) through pipelines, the second flange plate (7) and the third flange plate (8) are respectively connected with two shaft ends of the gear box (3) through pipelines, the third flange plate (8) and the fourth flange plate (9) are respectively connected with two shaft ends of the axial flow compressor (4) through pipelines, and the fifth flange plate (10) and the sixth flange plate (11) are respectively connected with two shaft ends of the tail gas turbine (5) through pipelines.

4. The centrifugal compressor oil-seal control of claim 1, wherein: the centrifugal compressor (2) is meshed with the axial flow compressor (4) through the gear in the gear box (3), and the axial flow compressor (4) is coaxially connected with the tail gas turbine (5).

5. The centrifugal compressor oil-seal control of claim 1, wherein: the control module (1) is fixedly arranged on the fixing frame (24).

6. The centrifugal compressor oil-seal control of claim 5, wherein: the bottom of the fixing frame (24) is a cross rod with a U-shaped cross section.