CN113323986A - Marine double-pump module symmetric floating raft vibration isolation structure - Google Patents
Marine double-pump module symmetric floating raft vibration isolation structure Download PDFInfo
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- CN113323986A CN113323986A CN202110752097.1A CN202110752097A CN113323986A CN 113323986 A CN113323986 A CN 113323986A CN 202110752097 A CN202110752097 A CN 202110752097A CN 113323986 A CN113323986 A CN 113323986A
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- vibration isolation
- cooling water
- water pump
- limiting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
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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
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
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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
- 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
- F04B39/06—Cooling; Heating; Prevention of freezing
- F04B39/064—Cooling by a cooling jacket in the pump casing
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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
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The application belongs to the technical field of marine shock attenuation vibration isolation structure, especially relates to a marine double pump module symmetry formula raft vibration isolation structure. The vibration isolation device comprises vibration isolation device assemblies which are arranged in a rectangular shape, and a limiting assembly arranged between the vibration isolation device assemblies; the vibration isolation device assembly at least comprises a first vibration isolation device and a second vibration isolation device, the limiting assembly comprises a first vibration isolation device, and the floating raft vibration isolation frame comprises a connecting plate, a supporting plate, a connecting plate, a rib plate group and a supporting frame; the dual pump module includes: two air compressor cooling water pumps, a shafting cooling water pump and two equipment cooling water pumps; the marine double-pump module symmetrical floating raft vibration isolation structure is applicable to marine cooling system of each type and size, contains a shafting cooling water pump, two air compressor machine cooling water pumps and two equipment cooling water pumps in this structure, extensive applicability, and overall structure compactness stability is good, adopts symmetrical formula structure to have good vibration characteristic, and double-deck float valve vibration isolation structure is little to the impact of hull, and the vibration is little.
Description
Technical Field
The application belongs to the technical field of marine shock attenuation vibration isolation structure, especially relates to a marine double pump module symmetry formula raft vibration isolation structure.
Background
The refrigerating system and the like on modern navigation equipment contain a large number of driving devices such as various water pumps, each water pump is used independently or in a related driving mode, strong vibration and noise can be caused in the operation process of the system, the vibration and the noise can bring adverse effects to some equipment with the requirements of stealth, noise elimination and the like, therefore, various vibration damping and vibration isolating devices need to be equipped to reduce the vibration and the noise of the system, the existing vibration damping and vibration isolating devices are generally fixed integrally or locally and are completed in a mode of being matched with multi-point vibration isolators to be connected and supported, the vibration damping and vibration isolating treatment is carried out on the whole device by matching with supporting rods and plates, although the whole vibration isolating effect is good, the whole layout still adopts the traditional streamline layout for the internal structure, the mass distribution among the structures is poor, the unbalanced bottom or each side vibration isolating structure is easy to accept deformation, and the mutual movement distance of each pump or other pumps in the internal structure is too large, easily produce very big noise, and be unfavorable for the whole steady continuous operation of equipment.
Disclosure of Invention
The utility model provides a marine double pump module symmetry formula raft vibration isolation structure, when reducing the whole vibration of system and noise, improve inner structure's stability, optimize system vibration characteristic.
In order to achieve the purpose, the following technical scheme is adopted in the application.
A marine double-pump module symmetric floating raft vibration isolation structure comprises a lower vibration isolation module 1, a floating raft vibration isolation frame 2 and a double-pump module 3;
lower vibration isolation module 1 is fixed to be set up on the hull, includes: vibration isolation assemblies 10 arranged in a rectangular shape, and a limiting assembly 11 arranged between the vibration isolation device groups;
the vibration isolation assembly 10 includes at least: two first vibration isolation devices 10a arranged on the short sides of the rectangle, eight second vibration isolation devices 10b arranged on the long sides of the rectangle, wherein the first vibration isolation devices 10a are arranged at the centers of the short sides, and the second vibration isolation devices 10b are distributed at equal intervals along the long sides; the first vibration isolation device 10a and the second vibration isolation device 10b have the same structure and comprise an n-shaped vibration isolation frame 10c and a vibration isolator arranged on the n-shaped vibration isolation frame 10 c;
spacing subassembly 11 is including setting up in the long limit both ends of rectangle and being located between two first vibration isolation devices 10a, include: the horizontal limiting frame 110, the limiting column 111, the limiting plate 112 and the limiting adjusting screw 113; the horizontal limiting frame 110 is arranged in an L shape, the inner side of the horizontal limiting frame 110 points to the center of the rectangle, and two sides of the horizontal limiting frame 110 are respectively parallel to the long side and the short side of the rectangle; two sides of the horizontal limiting frame 110 are respectively provided with a limiting screw hole 110a, and a limiting adjusting screw 113 is screwed into the limiting screw hole 110 a; the upper end of the limiting column 111 is provided with external threads and is fixed at the lower end of the floating raft vibration isolation frame 2 through a nut, the lower end of the limiting column 113 is provided with a limiting part, and one side of the limiting part 11a facing the two limiting adjusting screws 113 is provided with a limiting plane 111 a;
the buoyant raft vibration isolation frame 2 includes: the device comprises a connecting plate 20, a supporting plate 21, a rib plate group arranged between a bottom connecting plate 20 and a top connecting plate 21, and a supporting frame 22 arranged at the top of the supporting plate 21; the connecting plate 20 and the supporting plate 21 are rectangular flat plates with the same size, and a plurality of rectangular backing plates 210 are arranged on the upper end face of the supporting plate 21;
the supporting frame 22 is vertically arranged on the upper end surface of the supporting plate 21 and comprises a door-shaped main bracket 220 and two upright posts 221 arranged on the lower side of the main bracket 220;
the dual pump module 3 includes: two air compressor cooling water pumps 30, a shafting cooling water pump 31 and two equipment cooling water pumps 32;
the shafting cooling water pump 31 is connected with the main bracket 220 through the inverted T-shaped plate frame 33; the lower end of the shafting cooling water pump 31 is fixed on a shafting cooling water pump support plate 34, and the shafting cooling water pump support plate 34 is connected with the rectangular base plate 210 through a vibration isolator;
the two air compressor cooling water pumps 30 and the two equipment cooling water pumps 32 are symmetrically arranged on the left side and the right side of the shafting cooling water pump 31, and the air compressor cooling water pumps 30 and the two equipment cooling water pumps 32 are respectively arranged on the front side and the rear side of the main bracket 220.
The vibration isolation structure of the marine double-pump module symmetrical floating raft is further improved and optimized, and an air compressor cooling water pump 30 and an equipment cooling water pump 32 are connected with a main bracket through an inverted T-shaped plate frame;
the lower ends of the air compressor cooling water pump 30 and the equipment cooling water pump 32 are fixed on a shafting cooling water pump support plate 34, and the shafting cooling water pump support plate 34 is connected with the rectangular base plate 210 through a vibration isolator.
The marine double-pump module symmetrical buoyant raft vibration isolation structure is further improved and optimized, wherein the inverted T-shaped plate frame 33 consists of a connecting rod 330 vertically welded at the center of the upper end of the main support 220 and a movable panel 331 connected with the connecting rod 330 through a vibration isolator; the movable panel 331 is connected with the upper end of the shafting cooling water pump 31 through a vibration isolator.
The beneficial effects are that:
the marine double-pump module symmetrical floating raft vibration isolation structure is applicable to marine cooling system of each type and size, contains a shafting cooling water pump, two air compressor machine cooling water pumps and two equipment cooling water pumps in this structure, extensive applicability, and overall structure compactness stability is good, adopts symmetrical formula structure to have good vibration characteristic, and double-deck float valve vibration isolation structure is little to the impact of hull, and the vibration is little.
Drawings
Fig. 1 is a front view of a symmetrical raft vibration isolation structure of a marine dual-pump module;
FIG. 2 is a side view of a symmetrical raft vibration isolation structure of a marine dual pump module;
FIG. 3 is a top view of a symmetrical raft vibration isolation structure of a marine dual pump module;
fig. 4 is a schematic view of a buoyant raft vibration isolation framework;
fig. 5 is a schematic view of a vibration isolation assembly.
Wherein the reference numerals include:
the vibration isolation device comprises vibration isolation modules 1, a floating raft vibration isolation frame 2, a double-pump module 3, vibration isolation components 10, a first vibration isolation device 10a, a second vibration isolation device 10b, an n-shaped vibration isolation frame 10c, limiting components 11 arranged between vibration isolation device sets, a horizontal limiting frame 110, limiting columns 111, limiting plates 112, limiting adjusting screws 113, a connecting plate 20, a supporting plate 21, a connecting plate 20, a supporting frame 22, a main support 220, a vertical column 221, an air compressor cooling water pump 30, a shafting cooling water pump 31 and an equipment cooling water pump 32.
Detailed Description
The present application will be described in detail with reference to specific examples.
The application provides a marine double pump module symmetry formula raft vibration isolation structure, mainly used all kinds of surface of water or underwater navigation equipment cooling system's vibration isolation damping to improve equipment's silence and security performance.
The basic structure of the floating raft vibration isolation structure comprises a lower vibration isolation module 1, a floating raft vibration isolation frame 2 and a double-pump module 3;
lower vibration isolation module 1 is fixed to be set up on the hull, includes: vibration isolation assemblies 10 arranged in a rectangular shape, and a limiting assembly 11 arranged between the vibration isolation device groups;
the vibration isolation assembly 10 includes at least: two first vibration isolation devices 10a arranged on the short sides of the rectangle, eight second vibration isolation devices 10b arranged on the long sides of the rectangle, wherein the first vibration isolation devices 10a are arranged at the centers of the short sides, and the second vibration isolation devices 10b are distributed at equal intervals along the long sides; the first vibration isolation device 10a and the second vibration isolation device 10b have the same structure and comprise an n-shaped vibration isolation frame 10c and a vibration isolator arranged on the n-shaped vibration isolation frame 10 c;
the limiting assembly 11 includes two first vibration isolators 10a disposed at two ends of the long side of the rectangle, and includes: the horizontal limiting frame 110, the limiting column 111, the limiting plate 112 and the limiting adjusting screw 113; the horizontal limiting frame 110 is arranged in an L shape, the inner side of the horizontal limiting frame 110 points to the center of the rectangle, and two sides of the horizontal limiting frame 110 are respectively parallel to the long side and the short side of the rectangle; two sides of the horizontal limiting frame 110 are respectively provided with a limiting screw hole 110a, and a limiting adjusting screw 113 is screwed into the limiting screw hole 110 a; the upper end of the limiting column 111 is provided with external threads and is fixed at the lower end of the floating raft vibration isolation frame 2 through nuts, the lower end of the limiting column 113 is provided with a limiting part, and one side of the limiting part 11a facing the two limiting adjusting screws 113 is provided with a limiting plane 111 a;
the buoyant raft vibration isolation frame 2 includes: the device comprises a connecting plate 20, a supporting plate 21, a rib plate group arranged between a bottom connecting plate 20 and a top connecting plate 21, and a supporting frame 22 arranged at the top of the supporting plate 21; the connecting plate 20 and the supporting plate 21 are rectangular flat plates with the same size, and a plurality of rectangular backing plates 210 are arranged on the upper end face of the supporting plate 21;
the support frame 22 is vertically arranged on the upper end surface of the support plate 21 and comprises a door-shaped main support 220 and two upright posts 221 arranged on the lower side of the main support 220;
the dual pump module 3 includes: two air compressor cooling water pumps 30, a shafting cooling water pump 31 and two equipment cooling water pumps 32;
the shafting cooling water pump 31 is connected with the main bracket 220 through the inverted T-shaped plate frame 33; the lower end of the shafting cooling water pump 31 is fixed on a shafting cooling water pump support plate 34, and the shafting cooling water pump support plate 34 is connected with the rectangular base plate 210 through a vibration isolator;
the two air compressor cooling water pumps 30 and the two equipment cooling water pumps 32 are symmetrically arranged on the left side and the right side of the shafting cooling water pump 31, and the air compressor cooling water pumps 30 and the two equipment cooling water pumps 32 are respectively arranged on the front side and the rear side of the main bracket 220.
The air compressor cooling water pump 30 and the equipment cooling water pump 32 are connected with the main bracket through the inverted T-shaped plate frame;
the lower ends of the air compressor cooling water pump 30 and the equipment cooling water pump 32 are fixed on a shafting cooling water pump support plate 34, and the shafting cooling water pump support plate 34 is connected with the rectangular base plate 210 through a vibration isolator.
The inverted T-shaped plate frame 33 is composed of a connecting rod 330 vertically welded at the center of the upper end of the main bracket 220, and a movable panel 331 connected with the connecting rod 330 through a vibration isolator; the movable panel 331 is connected with the upper end of the shafting cooling water pump 31 through a vibration isolator.
In the implementation process, due to the difference of physical characteristics of different pumps, the upper-layer vertical shock absorber can adopt different combinations to further optimize the effect, and the implementation process has two types: the shafting cooling water pump is heavy, the BE120 type vibration isolator is adopted at the bottom, and the BE40 type vibration isolator is adopted as the lateral vibration isolator; the bottoms of other four pumps are respectively provided with four BE40 type vibration isolators, the lateral vibration isolators are BE15 type vibration isolators, the vibration absorbers on the float valves are 10 6JX-200 type vibration absorbers, and based on the design, the following test data are obtained by carrying out multiple test applications on a certain type X marine refrigeration system:
TABLE 1 stress situation of upper shock absorber
| Water pump of air compressor | Number 9 | Number 10 | Number 11 | Number 12 |
| Stress (N) | 328.5 | 346.3 | 396.2 | 415.7 |
| Device A | Number 13 | Number 14 | Number 15 | Number 16 |
| Stress (N) | 326.4 | 404.9 | 413.7 | 337.1 |
| Device B | Number 17 | |
Number 19 | No. 20 |
| Stress (N) | 336.3 | 328.5 | 414.8 | 423.5 |
| Condensate pump | Number 1 | |
No. 3 | Number 4 |
| Stress (N) | 332.2 | 349.4 | 379.6 | 405.8 |
| Shafting pump | Number 5 | Number 6 | No. 7 | Number 8 |
| Stress (N) | 964.6 | 847.7 | 1103.4 | 873.6 |
The deformation stress conditions (10 per position) of the lower layer damper are shown in table 2. The deformation difference value is about 0.5mm, the deformation is more uniform, the stress is not overloaded, and the deformation is far less than the rated maximum deformation of the vibration isolator and is 12 mm.
TABLE 2 lower shock absorber stress
| Number 1 | |
No. 3 | Number 4 | Number 5 | |
| Stress (N) | 1619.7 | 1631.7 | 1643.8 | 1645.8 | 1674 |
| Number 6 | No. 7 | Number 8 | Number 9 | Number 10 | |
| Is stressed(N) | 1638 | 1623 | 1615 | 1613 | 1658 |
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the protection scope of the present application, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.
Claims (3)
1. A marine double-pump module symmetric floating raft vibration isolation structure is characterized by comprising a lower vibration isolation module (1), a floating raft vibration isolation frame (2) and a double-pump module (3);
the fixed setting of lower vibration isolation module (1) includes on the hull: vibration isolation components (10) which are arranged in a rectangular shape, and a limiting component (11) which is arranged between the vibration isolation device groups;
the vibration isolation assembly (10) comprises at least: two first vibration isolation devices (10a) arranged on the short sides of the rectangle, eight second vibration isolation devices (10b) arranged on the long sides of the rectangle, wherein the first vibration isolation devices (10a) are arranged at the centers of the short sides, and the second vibration isolation devices (10b) are distributed at equal intervals along the long sides; the first vibration isolation device (10a) and the second vibration isolation device (10b) have the same structure and comprise an n-shaped vibration isolation frame (10c) and a vibration isolator arranged on the n-shaped vibration isolation frame (10 c);
spacing subassembly (11) including set up in the long limit both ends of rectangle and be located between two first vibration isolation devices (10a), include: the device comprises a horizontal limiting frame (110), a limiting column (111), a limiting plate (112) and a limiting adjusting screw (113); the horizontal limiting frame (110) is arranged in an L shape, the inner side of the horizontal limiting frame (110) points to the center of the rectangle, and two sides of the horizontal limiting frame (110) are respectively parallel to the long side and the short side of the rectangle; two sides of the horizontal limiting frame (110) are respectively provided with a limiting screw hole (110a), and a limiting adjusting screw (113) is screwed into the limiting screw hole (110 a); the upper end of the limiting column (111) is provided with external threads and is fixed at the lower end of the floating raft vibration isolation frame (2) through a nut, the lower end of the limiting column (113) is provided with a limiting part, and one side of the limiting part (11a) facing the two limiting adjusting screws (113) is provided with a limiting plane (111 a); the limiting plate (112) is fixed at the bottom of the buoyant raft vibration isolation frame (2);
the buoyant raft vibration isolation frame (2) comprises: the device comprises connecting plates (20), supporting plates (21), rib plate groups arranged between the bottom connecting plates (20) and the top connecting plates (21), and supporting frames (22) arranged at the tops of the supporting plates (21); the connecting plate (20) and the supporting plate (21) are rectangular flat plates with the same size, and a plurality of rectangular base plates (210) are arranged on the upper end face of the supporting plate (21);
the support frame (22) is vertically arranged on the upper end surface of the support plate (21) and comprises a door-shaped main support (220) and two upright posts (221) arranged on the lower side of the main support (220);
the dual pump module (3) comprises: two air compressor cooling water pumps (30), a shafting cooling water pump (31) and two equipment cooling water pumps (32);
the shafting cooling water pump (31) is connected with the main bracket (220) through the inverted T-shaped plate frame (33); the lower end of a shafting cooling water pump (31) is fixed on a shafting cooling water pump support plate (34), and the shafting cooling water pump support plate (34) is connected with a rectangular base plate (210) through a vibration isolator;
two air compressor machine cooling water pump (30) and two equipment cooling water pump (32) symmetry set up in shafting cooling water pump (31) left and right sides, and air compressor machine cooling water pump (30) and two equipment cooling water pump (32) locate main support (220) front and back side respectively.
2. The marine double-pump module symmetric raft vibration isolation structure of claim 1, wherein the air compressor cooling water pump (30) and the equipment cooling water pump (32) are connected with the main support through the inverted T-shaped plate frame;
the lower ends of an air compressor cooling water pump (30) and an equipment cooling water pump (32) are fixed on a shafting cooling water pump support plate (34), and the shafting cooling water pump support plate (34) is connected with a rectangular base plate (210) through a vibration isolator.
3. The marine double-pump module symmetric raft vibration isolation structure of claim 1, wherein the inverted-T-shaped plate frame (33) is composed of a connecting rod (330) vertically welded at the center of the upper end of the main bracket (220), a movable panel (331) connected to the connecting rod (330) through a vibration isolator; the movable panel (331) is connected with the upper end of the shafting cooling water pump (31) through the vibration isolator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752097.1A CN113323986B (en) | 2021-06-30 | 2021-06-30 | Marine double-pump module symmetric floating raft vibration isolation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110752097.1A CN113323986B (en) | 2021-06-30 | 2021-06-30 | Marine double-pump module symmetric floating raft vibration isolation structure |
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| CN113323986A true CN113323986A (en) | 2021-08-31 |
| CN113323986B CN113323986B (en) | 2022-03-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322210A (en) * | 2002-04-26 | 2003-11-14 | Niigata Power Systems Co Ltd | Vibration control device for internal combustion engine |
| CN102062171A (en) * | 2010-11-15 | 2011-05-18 | 中国舰船研究设计中心 | Method for arranging multiple vibration isolators and vibration isolation device |
| CN102644694A (en) * | 2012-04-27 | 2012-08-22 | 上海海事大学 | Vibration isolation system of elastic foundation buoyancy raft for marine machinery |
| CN104020005A (en) * | 2014-06-17 | 2014-09-03 | 江苏省镇江船厂（集团）有限公司 | Vibration isolation simulation device for marine engine room auxiliary machines |
-
2021
- 2021-06-30 CN CN202110752097.1A patent/CN113323986B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003322210A (en) * | 2002-04-26 | 2003-11-14 | Niigata Power Systems Co Ltd | Vibration control device for internal combustion engine |
| CN102062171A (en) * | 2010-11-15 | 2011-05-18 | 中国舰船研究设计中心 | Method for arranging multiple vibration isolators and vibration isolation device |
| CN102644694A (en) * | 2012-04-27 | 2012-08-22 | 上海海事大学 | Vibration isolation system of elastic foundation buoyancy raft for marine machinery |
| CN104020005A (en) * | 2014-06-17 | 2014-09-03 | 江苏省镇江船厂（集团）有限公司 | Vibration isolation simulation device for marine engine room auxiliary machines |
Non-Patent Citations (1)
| Title |
|---|
| 郭旭: "船用冷却水泵组浮筏隔振装置仿真设计及校核", 《科技创新导报》 * |
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