CN212255021U - A tube bundle fluid-solid coupling dynamic vibration test device - Google Patents

Abstract

A tube bundle fluid-solid coupling dynamic vibration test device includes a test pipeline and a support column. The test pipeline consists of a simulated straight pipe and a simulated curved pipe. The support column is respectively arranged under the simulated straight pipe and the simulated curved pipe, and a booster pump is connected to a storage The water tank and the test pipeline are used to transport the test fluid. The test pipeline is also provided with thermocouples, strain gauges, pressure gauges, flow meters, and extensometers to measure the temperature, flow rate and pressure of the test pipeline under the action of the test fluid. The vibration mechanics characteristics of the pipeline; compared with the existing device, the booster pump and the simulated straight pipe are connected by a connecting hose, which can effectively isolate the vibration transmission, and its application range is wide. And the circulating pump, the liquid at the end point after the experiment can be directly transferred to the starting point at the beginning of the experiment through the pipeline, which is easy and fast to operate.

Description

A tube bundle fluid-solid coupling dynamic vibration test device

technical field

The utility model relates to the technical field of tube bundle fluid-solid coupling dynamics experimental equipment, in particular to a tube bundle fluid-solid coupling dynamic vibration test device.

Background technique

The blowout pipeline is an important part of the well control manifold. During the on-site blowout operation, it is necessary to controlly guide the high-pressure mud and oil flow through the blowout line to the blowout pool and the burner. During the blowout process, the fluid is at high speed The flow will have a huge impact on the pipeline, which is easy to cause violent vibration and swing of the blowout pipeline, and even lead to accidents such as equipment injury and blowout out of control. Coupled dynamic vibrations.

At present, there are related experimental devices. For example, Chinese patent application CN201320544155.2 discloses a device for testing the mechanical properties of heat-fluid-structure coupling pipelines, but the device still has some defects: first, it does not consider the transmission of the vibration of the pump to the experimental tube bundle. The measured value of the influence on the vibration of the experimental tube bundle is not accurate enough; secondly, the device only examines the vibration of the vertical tube body, and does not consider the vibration of the curved tube body part, and the research object is too single; finally, the constant temperature There is no connecting pipeline between the water tank and the drainage water tank, so the direct transfer of the experimental water body cannot be achieved, and the operation is complicated.

Utility model content

In view of this, the purpose of the present invention is to provide a tube bundle fluid-solid coupling dynamic vibration test device to solve the related problems existing in the prior art.

The technical scheme provided by the utility model is to provide a tube bundle fluid-solid coupling dynamic vibration test device, comprising a test pipeline and a support column, the test pipeline is composed of a simulated straight pipe and a simulated curved pipe, and one end of the simulated straight pipe is The connecting hose is connected to the booster pump, and the other end is connected to the simulated elbow through the connecting hose, and the end of the simulated elbow that is not connected to the connecting hose extends into the collecting water tank; the support columns are respectively arranged in the simulated straight pipe. pipe and the simulated elbow; a storage water tank is arranged under the booster pump, and the liquid inlet pipe of the booster pump extends into the storage tank; the simulated straight pipe and the simulated elbow are provided on the pipe bodies near both ends There is a thermocouple, and the thermocouple is electrically connected to the thermometer set outside; the simulated straight pipe body is surrounded by a strain gauge, and the elbow of the simulated curved pipe body is surrounded by a strain gauge, and the strain gauges are all connected with the pipe body. The external computer is electrically connected; the simulated straight pipe body is also provided with an extensometer, and the extensometer is electrically connected to the external computer.

Further, the storage water tank is connected with the collection water tank pipeline, and a circulating pump is also provided on the connecting pipeline.

Further, the connecting pipeline between the storage water tank and the collecting water tank, the simulated straight pipe, and the simulated curved pipe are all provided with liquid valves.

Further, a flow meter and a pressure gauge are respectively provided on the simulated straight pipe.

Further, a pressure gauge is provided on the simulated elbow.

Further, an adjustable counterweight is hung on the outer wall of the simulated straight pipe.

Compared with the prior art, the above-mentioned technical scheme has the following advantages:

1. The connection between the booster pump and the simulated straight pipe is connected by a connecting hose, which can effectively isolate the vibration transmission, ensure that the simulated straight pipe is not affected by the vibration generated by the booster pump itself during the test, and improve the accuracy of the test.

2. A simulated elbow with a curved part is added to the test pipeline, and the simulated elbow is connected with the simulated straight pipe through a connecting hose, so that the test device can be used for the simulated curved pipe without being affected by the simulated straight pipe. The vibration situation is studied, which has a larger application range.

3. There is a connecting pipeline and a circulating pump between the storage water tank and the collecting water tank. The liquid at the end point after the experiment can be directly transferred to the starting point at the beginning of the experiment through the pipeline, and the operation is simple and fast.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of the present utility model;

In the picture, 1 storage tank, 2 booster pump, 3 connecting hose, 4 liquid valve, 5 simulated straight pipe, 6 simulated curved pipe, 7 strain gauge, 8 extensometer, 9 adjustable counterweight, 10 support column, 11 collection water tank , 12 circulating pumps, 13 thermocouples, 14 flow meters, 15 pressure gauges, 16 thermometers, 17 computers.

Detailed ways

The present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments of the present invention are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Referring to Figure 1, in this embodiment, a tube bundle fluid-solid coupling dynamic vibration test device:

The test pipeline consists of a simulated straight pipe 5 and a simulated curved pipe 6. One end of the simulated straight pipe 5 is connected to the booster pump 2 through the connecting hose 3, and the other end is connected to the simulated curved pipe 6 through the connecting hose 3. The end that is not connected to the connecting hose 3 extends into the collecting water tank 11, the support column 10 is respectively arranged under the simulated straight pipe 5 and the simulated curved pipe 6, and a storage water tank 1 is provided under the booster pump 2. The liquid pipeline extends into the storage water tank 1, and the simulated straight pipe 5 and the simulated curved pipe 6 are provided with thermocouples 13 near both ends of the pipe body. A strain gauge 7 is arranged around the body, and a strain gauge 7 is arranged around the elbow of the simulated elbow 6. The strain gauge 7 is electrically connected to an external computer 17. The simulated straight tube 5 is also provided with an extensometer 8 on the body. , the extensometer 8 is electrically connected to the externally provided computer 17, the storage water tank 1 is connected to the collection water tank 11 by pipelines, and a circulating pump 12 is also provided on the connecting pipeline. The connection pipeline between the storage water tank 1 and the collection water tank 11 simulates the The pipe 5 and the simulated elbow 6 are all provided with a liquid valve 4, and the simulated straight pipe 5 is also provided with a flow meter 14 and a pressure gauge 15 respectively. There are 9 adjustable counterweights.

The working principle of the utility model is:

The utility model is used to test the fluid-solid coupling dynamic vibration characteristics of the tube bundle. The test liquid is circulated in the device through the booster pump 2, and various mechanical data generated on the test pipeline during the liquid circulation process will be collected by the collecting device. Combined with the temperature, flow, and pressure data collected by other collection devices, the coupled dynamic vibration characteristics of the pipeline during the liquid circulation process are finally obtained.

Both the simulated straight pipe 5 and the simulated curved pipe 6 are supported by the support column 10. The simulated straight pipe 5 is used to evaluate and investigate the mechanical vibration state when the fluid passes through the straight pipe, and the elbow structure in the simulated curved pipe 6 can be effectively presented. The mechanical vibration state of the fluid in the curved pipe can be obtained, so that the device can study the vibration force state of the straight pipe and simultaneously study the vibration force state of the curved pipe.

The storage tank 1, the simulated straight pipe 5, the connecting hose 3, the simulated curved pipe 6, and the collecting water tank 11 constitute a circulation pipeline. The booster pump 2 above the storage tank 1 pumps the test water in the storage tank 1 into the circulation pipeline , the simulated straight pipe 5 is connected with the booster pump 2 through the connecting hose 3, and the vibration generated when the booster pump 2 is working can be effectively dispersed by the connecting hose 3, which avoids the simulated straight pipe 5 being affected by vibration during the test and ensures that the The accuracy of the test, and the connecting hose 3 is also used between the simulated elbow 6 and the simulated straight pipe 5, so that the simulated elbow 6 is also not affected by the vibration generated by the simulated straight pipe 5 during the test; the storage tank 1 and the collection A circulating pump 12 is arranged on the circulating pipeline between the water tanks 11, and the test liquid collected in the collecting water tank 11 can be re-injected into the storage water tank 1 when the test is over or the water volume is insufficient, and the operation is convenient and fast; A liquid valve 4 is provided on the connecting pipeline between the elbow 6 , the storage water tank 1 and the collecting water tank 11 , so that the test device can control the liquid flow as required.

Both ends of the simulated straight pipe 5 and both ends of the simulated curved pipe 6 are provided with thermocouples 13, and the thermocouples 13 are connected to the external thermometer 16 to collect and process temperature signals, so that the temperature changes of the test liquid in the test pipes can be measured respectively to grasp the The relationship between the temperature conditions and the mechanical properties of the test pipeline.

The strain gauge 7 is arranged around the corresponding position of the simulated straight pipe 5 and the curved part of the simulated curved pipe 6, and is electrically connected with the computer 17 to collect the radial force data of the simulated straight pipe 5 and the simulated curved pipe 6. The stress data is transmitted to the computer 17 for storage and processing; the extensometer 8 is arranged on the simulated straight pipe 5 and is also electrically connected to the computer 17 to test the axial stress and tensile conditions on the simulated straight pipe 5, thereby realizing the Comprehensive testing of the mechanical properties of pipes under the action of fluids.

The adjustable counterweight 9 is hung on the simulated straight pipe 5, and its weight can be changed as required, thereby changing the external force condition of the simulated straight pipe 5, so as to better simulate the state of the pipe under external force under actual conditions.

The flow meter 14 is used to collect the liquid flow data in the whole device. The simulated straight pipe 5 and the simulated curved pipe 6 are respectively provided with pressure gauges 15 to collect the pressure data in the whole pipeline, so as to effectively analyze the internal fluid pressure and external pressure of the pipeline. relationship between stress conditions.

In the description of the present invention, it should be pointed out that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , The structure and operation in a specific orientation should not be construed as a limitation to the present invention.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Changes or substitutions that are easily thought of should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (6)

1. a tube bundle fluid-solid coupling dynamic vibration test device, is characterized in that, comprises test pipeline and support column (10); The test pipeline is composed of a simulated straight pipe (5) and a simulated curved pipe (6). The pipe (3) is connected to the simulated elbow (6), and the end of the simulated elbow (6) that is not connected to the connecting hose (3) extends into the collecting water tank (11); The support columns (10) are respectively arranged below the simulated straight pipe (5) and the simulated curved pipe (6); A storage water tank (1) is arranged below the booster pump (2), and the liquid inlet pipe of the booster pump (2) extends into the storage water tank (1); Thermocouples (13) are provided on the pipe bodies near both ends of the simulated straight pipe (5) and the simulated curved pipe (6), and the thermocouples (13) are electrically connected to an externally provided thermometer (16). Connection; the simulated straight pipe (5) is provided with a strain gauge (7) around the pipe body, and the simulated curved pipe (6) is provided with a strain gauge (7) at the elbow of the pipe body, and the strain gauges (7) are connected to the outside Setting up the electrical connection of the computer (17); An extensometer (8) is also arranged on the pipe body of the simulated straight pipe (5), and the extensometer (8) is electrically connected to an externally provided computer (17). 2. A tube bundle fluid-solid coupling dynamic vibration test device according to claim 1, characterized in that: the storage water tank (1) is connected with the collection water tank (11) pipeline, and the connecting pipeline is also provided with There is a circulating pump (12). 3. A tube bundle fluid-solid coupling dynamic vibration test device according to claim 2, characterized in that: the connecting pipeline between the storage water tank (1) and the collecting water tank (11), the simulation A liquid valve (4) is arranged on the straight pipe (5) and the simulated curved pipe (6). 4 . The tube bundle fluid-solid coupling dynamic vibration test device according to claim 1 , wherein the simulated straight tube ( 5 ) is further provided with a flow meter ( 14 ) and a pressure gauge ( 15 ). 5 . 5. A tube bundle fluid-solid coupling dynamic vibration test device according to claim 1, wherein a pressure gauge (15) is provided on the simulated elbow (6). 6. A tube bundle fluid-solid coupling dynamic vibration test device according to claim 1, characterized in that: an adjustable counterweight (9) is hung on the outer wall of the simulated straight tube (5).

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