Damping platform suitable for ship-end Coriolis flow meter

Abstract

The invention relates to a damping platform suitable for a ship-end Coriolis flowmeter, and the damping platform comprises a horizontal oil inlet pipe of which the oil outlet end is connected with one end of the Coriolis flowmeter; the oil inlet end of the horizontal oil outlet pipe is connected with the other end of the Coriolis flowmeter, and the horizontal oil inlet pipe, the horizontal oil outlet pipe and a measuring pipe of the Coriolis flowmeter are coaxial; the frame is fixed with a deck of the ship; each shock absorber comprises a first shock absorption component and a second shock absorption component, the second shock absorption component is connected with the first shock absorption component and can rotate relative to the first shock absorption component, the second shock absorption component is provided with a shock absorption rod and a rod sleeve, one end of the shock absorption rod extends into the rod sleeve and can move along the axis of the rod sleeve, and the shock absorption rod is sleeved with a spring; the spring is compressed when the damping rod moves into the rod sleeve. According to the damping platform suitable for the ship-end Coriolis flow meter, the defect that metering is disturbed due to the fact that an existing flow meter is vibrated by a ship and a main engine due to a fixing mode can be overcome.

Description

Technical Field

[0001] The invention relates to the field of monitoring ship fuel consumption, and in particular to a shock absorbing platform suitable for a ship-end Coriolis flowmeter. Background Art

[0002] The fuel consumption of ship equipment is the focus of shipping companies, because the fuel consumption of ships is one of the key costs in the entire voyage operation. However, the accurate and stable monitoring of the fuel consumption of ship equipment, especially the fuel consumption of the main engine, is a technical difficulty that the industry cannot solve well. For the equipment on the ship side, especially the main engine and auxiliary engine, the fuel used is mostly high-viscosity granular liquid. Currently commonly used ship-side flow meters include: volume flowmeter, turbine flowmeter, mass flowmeter, etc. The volume flowmeter has high accuracy and is suitable for high-viscosity fluids, but because the density of marine fuel changes greatly due to the influence of temperature, it is not suitable for mass measurement; the turbine flowmeter measures accurately but is not suitable for high-viscosity granular fluids; the mass flowmeter measures the liquid mass accurately, but the flowmeter developed based on the Coriolis force is easily disturbed by the vibration of the ship's main engine and pipeline, resulting in fluctuations in the measurement data.

[0003] In the existing design scheme, the flowmeters at the ship end are directly installed on the steel pipeline, which is in direct contact with the deck or the main engine equipment. This causes the vibration generated by the operation of the main engine and the vibration generated by the ship when sailing to be directly transmitted to the flowmeter, which has a huge impact on the Coriolis flowmeter that measures flow based on the vibration principle. Summary of the invention

[0004] The invention provides a shock absorbing platform suitable for a ship-end Coriolis flowmeter, which can overcome the defect that the existing flowmeter is disturbed in measurement due to the vibration of the ship and the main engine due to the fixing mode.

[0005] The shock absorbing platform of the present invention applicable to the ship-end Coriolis flowmeter comprises:

[0006] A horizontal oil inlet pipe, the oil outlet end of which is connected to one end of the Coriolis flowmeter;

[0007] A horizontal oil outlet pipe, the oil inlet end of which is connected to the other end of the Coriolis flowmeter, and the horizontal oil inlet pipe, the horizontal oil outlet pipe and the measuring tube of the Coriolis flowmeter are coaxial;

[0008] A frame, fixed to the deck of the vessel;

[0009] Two shock absorbers are installed on the frame, one of which is sleeved on the outside of the horizontal oil inlet pipe to support and absorb shock to the horizontal oil inlet pipe, and the other is sleeved on the outside of the horizontal oil outlet pipe to support and absorb shock to the horizontal oil outlet pipe. The shock absorber includes a first shock-absorbing component connected to the horizontal oil inlet pipe or the horizontal oil outlet pipe and rotatable relative to the horizontal oil inlet pipe or the horizontal oil outlet pipe, and a second shock-absorbing component connected to the frame and rotatable relative to the frame, the second shock-absorbing component is connected to the first shock-absorbing component and rotatable relative to the first shock-absorbing component, the second shock-absorbing component is provided with a shock-absorbing rod and a rod sleeve, one end of the shock-absorbing rod extends into the rod sleeve and can move along the axis of the rod sleeve, the shock-absorbing rod is provided with a shock-absorbing rod limiting structure, the rod sleeve is provided with a rod sleeve limiting structure that can cooperate with the shock-absorbing rod limiting structure to prevent the shock-absorbing rod from escaping from the rod sleeve, and the shock-absorbing rod sleeve is provided with a spring, which is compressed when the shock-absorbing rod moves into the rod sleeve.

[0010] Preferably, the outer walls of the horizontal oil inlet pipe and the horizontal oil outlet pipe are provided with a steel pipe screw, and the steel pipe screw has a screw head perpendicular to its axial direction. The first shock-absorbing component includes a central bearing installed outside the steel pipe screw and a central fixing nut installed outside the steel pipe screw through a thread. The central fixing nut and the screw head are respectively located on both sides of the central bearing to limit the central bearing.

[0011] Preferably, the shock absorber is provided with three second shock absorbing components. When the frame is stationary, the three second shock absorbing components surround the lower half of the steel pipe screw, the angle between two adjacent second shock absorbing components is 90°, and the second shock absorbing component in the middle is vertical.

[0012] Preferably, three transfer bearings are fixed to the outer wall of the center bearing, and the second shock absorber also includes a rotating pin that passes through the transfer bearing and is fixed to the inner ring of the transfer bearing and exposed at both ends. The rotating pins of the three second shock absorbers correspond one by one to the three transfer bearings, and the second shock absorbing component also includes a connecting frame fixedly connected to the other end of the shock absorbing rod, and the connecting frame is fixedly connected to both ends of the rotating pin.

[0013] Preferably, the connection frame comprises two parallel first side walls, the first side walls have threaded holes, the rotating pin is a double-headed screw, and both ends of the double-headed screw are respectively fixed to the two first side walls through threads.

[0014] Preferably, the connecting frame further comprises a second side wall connecting the two first side walls, and the shock absorbing rod is fixedly connected to the second side wall.

[0015] Preferably, the second shock absorber also includes a rod sleeve bearing located at the other end of the rod sleeve, the outer wall of the rod sleeve bearing is fixedly connected to the other end of the rod sleeve, and the shock absorber also includes a fixing pin passing through the rod sleeve bearing and fixed to the inner ring of the rod sleeve bearing, and the fixing pin is fixed to the frame.

[0016] Preferably, the fixing pin is a fixing screw, one end of which is provided with a nut to limit the rod sleeve bearing, and the other end of the fixing screw passes through the rod sleeve bearing and is fixed to the frame.

[0017] Preferably, the shock absorbing platform also includes an external oil inlet pipe, an external oil pipe, an oil inlet hose and an oil outlet hose, one end of the oil inlet hose is connected to the oil outlet end of the external oil inlet pipe, and the other end is connected to the oil inlet end of the horizontal oil inlet pipe, one end of the oil outlet hose is connected to the oil outlet end of the horizontal oil outlet pipe, and the other end is connected to the oil inlet end of the external oil pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. When the frame vibrates, the spring of the shock-absorbing platform of the present invention absorbs the vibration along the axial direction of the shock-absorbing rod, preventing the vibration from being transmitted to the horizontal oil inlet pipe and the horizontal oil outlet pipe. At the same time, the second shock-absorbing component can rotate relative to the frame and the first shock-absorbing component to offset part of the vibration. If the vibration is transmitted to the first shock-absorbing component, the first shock-absorbing component can also rotate relative to the horizontal oil inlet pipe or the horizontal oil outlet pipe. In this way, after multi-directional and multi-level shock absorption, the vibration finally transmitted to the horizontal oil inlet pipe, the horizontal oil outlet pipe and the Coriolis flowmeter is greatly reduced, and the measurement accuracy of the Coriolis flowmeter can be greatly improved.

[0020] 2. The vibration of the external oil inlet pipe and the external oil outlet pipe is absorbed by the oil inlet hose and the oil outlet hose respectively. Therefore, the vibration of the external oil inlet pipe and the external oil outlet pipe will not be transmitted to the horizontal oil inlet pipe and the horizontal oil outlet pipe, thereby further improving the measurement accuracy of the Coriolis flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a three-dimensional structural schematic diagram of a shock absorbing platform suitable for a ship-end Coriolis flowmeter according to an embodiment of the present invention.

[0022] Figure 2 The present invention is a schematic structural diagram of a shock absorbing platform suitable for a ship-end Coriolis flowmeter in a main viewing direction according to an embodiment of the present invention.

[0023] Figure 3 The present invention is a schematic structural diagram of a shock absorber for a shock absorbing platform of a ship-end Coriolis flowmeter according to an embodiment of the present invention.

[0024] Figure 4The present invention is a schematic diagram of the connection structure of a steel pipe screw, a center bearing and a transfer bearing of a shock absorber of a shock absorbing platform suitable for a ship-end Coriolis flowmeter according to an embodiment of the present invention.

[0025] Figure 5 The present invention is a schematic structural diagram of a shock absorbing rod of a shock absorbing platform suitable for a ship-end Coriolis flowmeter according to an embodiment of the present invention.

[0026] Reference numerals

[0027] 1 horizontal oil inlet pipe, 11 steel pipe screw, 111 screw head, 112 center fixing nut, 12 connecting flange;

[0028] 2 horizontal oil outlet pipe;

[0029] 3 frame, 31 horizontal arm, 32 vertical arm, 33 fixing pin, 34 nut;

[0030] 4 shock absorber, 41 first shock absorbing component, 411 center bearing, 412 connecting block, 413 adapter bearing, 42 second shock absorbing component, 421 shock absorbing rod, 422 rod sleeve, 423 shock absorbing rod limiting structure, 424 rod sleeve limiting structure, 425 spring, 426 connecting frame, 4261 first side wall, 4262 second side wall, 427 rotating pin, 428 rod sleeve bearing;

[0031] 5. External oil inlet pipe;

[0032] 6 outgoing oil pipeline;

[0033] 7 oil inlet hose, 71 nut flange;

[0034] 8. Oil outlet hose;

[0035] 9Coriolis flowmeter;

[0036] 10 decks. DETAILED DESCRIPTION

[0037] The present invention provides a shock absorbing platform suitable for a ship-end Coriolis flowmeter 9, such as Figure 1 and Figure 2As shown, it includes a horizontal oil inlet pipe 1, a horizontal oil outlet pipe 2, a frame 3 and two shock absorbers 4. The oil outlet end of the horizontal oil inlet pipe 1 is connected to one end of the Coriolis flowmeter 9, and the oil inlet end of the horizontal oil outlet pipe 2 is connected to the other end of the Coriolis flowmeter 9. The Coriolis flowmeter 9 can be a U-type or a straight tube flowmeter. The horizontal oil inlet pipe 1, the horizontal oil outlet pipe 2 and the measuring tubes of the Coriolis flowmeter 9 are coaxial. The frame 3 is fixed to the main engine of the deck of the ship, and the frame 3 can be made of stainless steel. Two shock absorbers 4 are installed on the frame 3, one of the shock absorbers 4 is sleeved on the outside of the horizontal oil inlet pipe 1 to support and absorb shock to the horizontal oil inlet pipe 1, and the other shock absorber 4 is sleeved on the outside of the horizontal oil outlet pipe 2 to support and absorb shock to the horizontal oil outlet pipe 2. As shown Figure 3 As shown, the shock absorber 4 includes a first shock absorbing member 41 connected to the horizontal oil inlet pipe 1 or the horizontal oil outlet pipe 2 and rotatable relative to the horizontal oil inlet pipe 1 or the horizontal oil outlet pipe 2, and a second shock absorbing member 42 connected to the frame 3 and rotatable relative to the frame 3, and the second shock absorbing member 42 is connected to the first shock absorbing member 41 and rotatable relative to the first shock absorbing member 41. The second shock absorbing member 42 is provided with a shock absorbing rod 421 and a rod sleeve 422, one end of the shock absorbing rod 421 extends into the rod sleeve 422 and can move along the axis of the rod sleeve 422, the shock absorbing rod 421 is provided with a shock absorbing rod limiting structure 423, and the rod sleeve 422 is provided with a rod sleeve limiting structure 424 that can cooperate with the shock absorbing rod limiting structure 423 to prevent the shock absorbing rod 421 from escaping from the rod sleeve 422. In this embodiment, the rod sleeve limiting structure 424 is a cover body fixed to the end of the rod sleeve 422, and the cover body has a hole that allows the shock absorbing rod 421 to pass through. The shock absorbing rod 421 is covered with a spring 425 , and the spring 425 is compressed when the shock absorbing rod 421 moves into the rod sleeve 422 .

[0038] When the frame 3 vibrates, the spring 425 absorbs the vibration along the axial direction of the shock absorbing rod 421, preventing the vibration from being transmitted to the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2. At the same time, the second shock absorbing component 42 can rotate relative to the frame 3 and the first shock absorbing component 41, which can offset part of the vibration in the direction perpendicular to the shock absorbing rod 421, and the vibration is transmitted to the first shock absorbing component 41. The first shock absorbing component 41 can also rotate relative to the horizontal oil inlet pipe 1 or the horizontal oil outlet pipe 2. In this way, after multi-directional and multi-level shock absorption, the vibration finally transmitted to the horizontal oil inlet pipe 1, the horizontal oil outlet pipe 2 and the Coriolis flowmeter 9 is greatly reduced, and the measurement accuracy of the Coriolis flowmeter 9 can be greatly improved.

[0039] In this embodiment, the outer walls of the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2 are both provided with a steel pipe screw 11, which can be made of stainless steel and can be integrally formed with the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2, or can be fixedly fitted by interference fit. Figure 3As shown, one end of the steel tube screw 11 has an annular screw head 111 perpendicular to its axis, and a central bearing 411 and a central fixing nut 112 are installed outside the steel tube screw 11. The inner ring of the central bearing 411 is fixed to the steel tube screw 11, and the outer ring of the central bearing 411 can rotate relative to the steel tube screw 11. The central fixing nut 112 is connected to the steel tube screw 11 through threads, and the central fixing nut 112 and the screw head 111 are respectively located on both sides of the central bearing 411 to limit the central bearing 411 in the axial direction.

[0040] like Figure 1 As shown, in this embodiment, the frame 3 has a vertical arm 32 and a horizontal arm 31, two of which are used to install the shock absorber 4 of the horizontal oil inlet pipe 1, and the other two vertical arms 32 and the other horizontal arm 31 are used to install the shock absorber 4 of the horizontal oil outlet pipe 2. The shock absorber 4 is provided with three second shock absorbing components 42. When the frame 3 is stationary, the three second shock absorbing components 42 surround the lower half of the steel pipe screw 11 and are located in the same plane, that is, in this embodiment, they are located in a plane perpendicular to the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2. The angle between two adjacent second shock absorbing components 42 is 90°, and the second shock absorbing component 42 located in the middle is vertical and connected to the horizontal arm 31 of the frame 3, and the other two second shock absorbing components 42 are connected to the two vertical arms 32 respectively. The shock absorbing rod 421 and the spring 425 of the second shock absorbing component 42 in the vertical direction are used to reduce the vibration in the vertical direction, and the shock absorbing rods 421 and the spring 425 of the other two second shock absorbing components 42 are used to reduce the vibration in the horizontal direction. At the same time, the mutual rotation between the first shock absorbing component, the second shock absorbing component and the frame 3 also reduces the vibration.

[0041] exist Figure 4 In the embodiment, the central fixing nut 112 is removed. Figure 4 As shown, the outer wall of the central bearing 411 is provided with three connecting blocks 412, each connecting block 412 is fixed with a transfer bearing 413, the diameter of the transfer bearing 413 is smaller than the central bearing 411, each second shock absorbing member also includes a rotating pin 427 passing through the transfer bearing 413 and fixed to the inner ring of the transfer bearing 413, the two ends of the rotating pin 427 are exposed, the rotating pins 427 of the three second shock absorbing members correspond to the three transfer bearings 413 one by one, and the second shock absorbing member 42 also includes a connecting frame 426 fixedly connected to the other end of the shock absorbing rod 421, and the connecting frame 426 is also fixedly connected to the two ends of the rotating pin 427. In this embodiment, the spring 425 is located between the rod sleeve limiting structure 424 and the connecting frame 426. The transfer bearing 413 makes the relative rotation between the first shock absorbing member 41 and the second shock absorbing member 42 smoother, and prevents the jamming of the rotation from affecting the buffering of the vibration.

[0042] like Figure 5As shown, the connection frame 426 includes two parallel first side walls 4261, the first side walls 4261 have threaded holes, the rotating pin 427 is a double-headed screw, and the two ends of the double-headed screw are respectively fixed to the two first side walls 4261 through threads. The connection frame 426 also includes a second side wall 4262 connecting the two first side walls 4261, and the shock absorbing rod 421 is fixedly connected to the second side wall 4262.

[0043] like Figure 5 As shown, the second shock absorbing member 42 further includes a rod sleeve bearing 428 located at the other end of the rod sleeve 422, the outer wall of the rod sleeve bearing 428 is fixedly connected to the other end of the rod sleeve 422, and the shock absorber 4 further includes a fixing pin 33 passing through the rod sleeve bearing 428 and fixed to the inner ring of the rod sleeve bearing 428, and the fixing pin 33 is fixed to the frame 3. The second shock absorbing member is rotated relative to the frame 3 by the rod sleeve bearing 428. In this embodiment, the fixing pin 33 is a fixing screw, one end of which is equipped with a nut 34 to limit the rod sleeve bearing 428, and the other end is fixed to the frame 3 after passing through the rod sleeve bearing 428.

[0044] like Figure 1 and Figure 2 As shown, the shock absorbing platform further includes an external oil inlet pipe 5, an external oil outlet pipe 6, an oil inlet hose 7 and an oil outlet hose 8. One end of the oil inlet hose 7 is connected to the oil outlet end of the external oil inlet pipe 5, and the other end is connected to the oil inlet end of the horizontal oil inlet pipe 1. One end of the oil outlet hose 8 is connected to the oil outlet end of the horizontal oil outlet pipe 2, and the other end is connected to the oil inlet end of the external oil outlet pipe 6. In this embodiment, both ends of the oil inlet hose 7 and the oil outlet hose 8 are provided with nut flanges 71, which are connected to the connecting flanges 12 of the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2 through the nut flanges 71. The vibrations of the external oil inlet pipe 5 and the external oil outlet pipe 6 are absorbed by the oil inlet hose 7 and the oil outlet hose 8 respectively. Therefore, the vibrations of the external oil inlet pipe 5 and the external oil outlet pipe 6 will not be transmitted to the horizontal oil inlet pipe 1 and the horizontal oil outlet pipe 2, thereby further improving the measurement accuracy of the Coriolis flowmeter 9.

[0045] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Various modifications or equivalent substitutions made by those skilled in the art to the present invention within the essence and protection scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A shock absorbing platform suitable for a ship-end Coriolis flowmeter, characterized in that: include: A horizontal oil inlet pipe, the oil outlet end of which is connected to one end of the Coriolis flowmeter; A horizontal oil outlet pipe, the oil inlet end of which is connected to the other end of the Coriolis flowmeter, and the horizontal oil inlet pipe, the horizontal oil outlet pipe and the measuring tube of the Coriolis flowmeter are coaxial; A frame, fixed to the deck of the vessel; Two shock absorbers are installed on the frame, one of which is sleeved on the outside of the horizontal oil inlet pipe to support and absorb shock to the horizontal oil inlet pipe, and the other is sleeved on the outside of the horizontal oil outlet pipe to support and absorb shock to the horizontal oil outlet pipe. The shock absorber includes a first shock-absorbing component connected to the horizontal oil inlet pipe or the horizontal oil outlet pipe and rotatable relative to the horizontal oil inlet pipe or the horizontal oil outlet pipe, and a second shock-absorbing component connected to the frame and rotatable relative to the frame, the second shock-absorbing component is connected to the first shock-absorbing component and rotatable relative to the first shock-absorbing component, the second shock-absorbing component is provided with a shock-absorbing rod and a rod sleeve, one end of the shock-absorbing rod extends into the rod sleeve and can move along the axis of the rod sleeve, the shock-absorbing rod is provided with a shock-absorbing rod limiting structure, the rod sleeve is provided with a rod sleeve limiting structure that can cooperate with the shock-absorbing rod limiting structure to prevent the shock-absorbing rod from escaping from the rod sleeve, and the shock-absorbing rod sleeve is provided with a spring, which is compressed when the shock-absorbing rod moves into the rod sleeve.

2. The shock absorbing platform according to claim 1, characterized in that: The outer walls of the horizontal oil inlet pipe and the horizontal oil outlet pipe are both provided with a steel pipe screw, and the steel pipe screw has a screw head perpendicular to its axial direction. The first shock-absorbing component includes a central bearing installed outside the steel pipe screw and a central fixing nut installed outside the steel pipe screw through a thread. The central fixing nut and the screw head are respectively located on both sides of the central bearing to limit the central bearing.

3. The shock absorbing platform according to claim 2, characterized in that: The shock absorber is provided with three second shock absorbing components. When the frame is stationary, the three second shock absorbing components surround the lower half of the steel pipe screw, the angle between two adjacent second shock absorbing components is 90°, and the second shock absorbing component in the middle is vertical.

4. The shock absorbing platform according to claim 3, characterized in that: Three transfer bearings are fixed to the outer wall of the center bearing, and the second shock-absorbing member also includes a rotating pin that passes through the transfer bearing and is fixed to the inner ring of the transfer bearing and exposed at both ends. The rotating pins of the three second shock-absorbing members correspond one by one to the three transfer bearings, and the second shock-absorbing member also includes a connecting frame fixedly connected to the other end of the shock-absorbing rod, and the connecting frame is fixedly connected to both ends of the rotating pin.

5. The shock absorbing platform according to claim 4, characterized in that: The connection frame comprises two parallel first side walls, the first side walls have threaded holes, the rotating pin is a double-headed screw, and both ends of the double-headed screw are respectively fixed to the two first side walls through threads.

6. The shock absorbing platform according to claim 5, characterized in that: The connecting frame further comprises a second side wall connecting the two first side walls, and the shock absorbing rod is fixedly connected to the second side wall.

7. The shock absorbing platform according to claim 1 or 2, characterized in that: The second shock absorber also includes a rod sleeve bearing located at the other end of the rod sleeve, the outer wall of the rod sleeve bearing is fixedly connected to the other end of the rod sleeve, and the shock absorber also includes a fixing pin passing through the rod sleeve bearing and fixed to the inner ring of the rod sleeve bearing, and the fixing pin is fixed to the frame.

8. The shock absorbing platform according to claim 7, characterized in that: The fixing pin is a fixing screw rod, one end of which is provided with a nut to limit the rod sleeve bearing, and the other end of the fixing screw rod passes through the rod sleeve bearing and is fixed to the frame.

9. The shock absorbing platform according to claim 1, characterized in that: The shock absorbing platform also includes an external oil inlet pipe, an external oil pipe, an oil inlet hose and an oil outlet hose. One end of the oil inlet hose is connected to the oil outlet end of the external oil inlet pipe, and the other end is connected to the oil inlet end of the horizontal oil inlet pipe. One end of the oil outlet hose is connected to the oil outlet end of the horizontal oil outlet pipe, and the other end is connected to the oil inlet end of the external oil pipe.

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