CN116448576A - Metal tube blasting water pressure testing device - Google Patents

Abstract

The invention discloses a metal pipe blasting water pressure testing device, which relates to the technical field of metal pipe testing, and mainly solves the problem of low measurement values caused by backward metal pipe testing methods, and if more measurement values need to be obtained, multiple devices need to be purchased Test, the cost is too high, the hydraulic valve is divided into hydraulic valve one and hydraulic valve two; the hydraulic valve one is connected to the pump one, the pump one is connected to the three-way valve one, and the three-way Valve one is connected to barrel one and barrel two; the hydraulic valve two is connected to pump two, the pump two is connected to three-way valve two, and the three-way valve two is connected to barrel three and barrel four, and the test of different modes increases the metal The amount of data in the water pressure test of the pipe, and the water pressure test of the low hardness area of the metal pipe can be tested to obtain high-quality metal pipes, which provides data support for the sale of metal pipes according to quality.

Description

A metal pipe blasting hydraulic pressure test device

technical field

The invention relates to the technical field of metal pipe testing, in particular to a metal pipe blasting hydraulic pressure testing device.

Background technique

Metal pipes are widely used in modern life and production. Many oil and gas pipelines and water supply systems use metal pipes, but there are welds in the production process. Metal pipes need to be sealed before leaving the factory. However, the metal pipe test Outdated methods lead to few measured values, and if more measured values need to be obtained, multiple devices need to be purchased for testing, and the cost is too high;

There are roughly two types of metal tubes, one is thick at both ends and thin in the middle, and the other is straight tube with the same diameter value. If you buy multiple equipment for different metal tubes, the test process will be too cumbersome. Therefore, design a A kind of metal pipe bursting water pressure test device is very necessary.

Contents of the invention

The object of the present invention is to provide a metal pipe bursting hydraulic pressure testing device to solve the problems raised in the above-mentioned background technology.

In order to solve the above technical problems, the present invention provides the following technical solutions: a metal pipe blasting hydraulic test device, including a test frame, and an upper test area and a lower test area are set in the test frame;

Both the upper test area and the lower test area are provided with test components and pipeline components;

The test components include: telescopic rod

a test body, the test body is fixedly arranged on the test frame;

a horizontal groove, the horizontal groove is arranged on the test body;

a metal tube placing groove, and the metal pipe placing groove is arranged on the test main body;

The metal pipe placement groove is used for placing metal pipes.

According to the above technical solution, a clamping assembly is arranged in the metal pipe placement groove, and the clamping assembly includes:

A telescopic rod, the telescopic rod is arranged on the inner groove wall of the metal pipe placement groove;

A clamping plate, the clamping plate is arranged on the telescopic rod;

The gasket layer is arranged on the clamping plate.

According to the above technical scheme, the test subject also includes:

A pressure injection pipe, the pressure injection pipe is arranged on the clamping plate and runs through the clamping plate and the gasket;

A water pressure valve, the water pressure valve is arranged in the test frame;

A conduit port, the conduit port is matched with a water pressure valve, and a detachable L-shaped pipe is arranged between the water pressure valve and the conduit port.

According to the above technical solution, the hydraulic valve is divided into hydraulic valve 1 and hydraulic valve 2;

The hydraulic valve one is connected to the pump one, the pump one is connected to the three-way valve one, and the three-way valve one is connected to the barrel one and the barrel two;

The hydraulic valve two is connected to the pump two, the pump two is connected to the three-way valve two, and the three-way valve two is connected to the barrel three and the barrel four.

According to the above technical solution, a bottom hole is provided in the horizontal groove.

According to the above technical solution, a drainage pipeline is provided between the upper testing area and the lower testing area, and one end of the drainage pipeline is connected to the horizontal tank, and the other end is connected to the barrel two.

Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention, by setting the test body, increases the amount of data of the metal pipe hydrostatic test through the test of different modes, and at the same time carries out the hydrostatic test on the low hardness area of the metal pipe , can test high-quality metal pipes, and provide data support for the sale of metal pipes according to quality.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a schematic diagram of a hydraulic testing system of the present invention;

Fig. 2 is a schematic diagram of the internal structure of the upper test area of the present invention;

Fig. 3 is a schematic diagram of the positions of the upper test area and the lower test area of the present invention;

Fig. 4 is a schematic diagram of a drainage pipeline of the present invention;

Fig. 5 is a schematic diagram of the internal pipelines of the upper test area and the lower test area of the present invention;

Fig. 6 is a schematic diagram of the internal structure of the test body of the present invention;

Fig. 7 is an enlarged schematic diagram of area A in Fig. 6 of the present invention;

Fig. 8 is a schematic diagram of the overall front sectional structure of the present invention;

In the figure: 1. Test framework;

2. Upper test area; 21. Test body; 211. Horizontal groove; 212. Metal tube placement groove; 213. Clamping plate; 214. Telescopic rod; 215. Clamping plate; 216. Gasket layer; Mouth; 218, injection pressure pipe; 219, bottom hole;

22. Control panel one; 23. Plug-in board;

24. Water pressure valve; 241. Water pressure valve one; 242. Water pressure valve two; 243. Pump one; 244. Pump two; 245. Three-way valve one; 246. Three-way valve two; 25. Water pressure surface;

3. Lower test area;

4. Drainage pipeline; 41, bucket one; 42, bucket two; 43, bucket three; 44, bucket four.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-8, the present invention provides a technical solution: a metal pipe blasting hydraulic test device, including a test frame 1, the test frame 1 divides the entire test device into an upper test area 2 and a lower test area 3, and the upper test area 2, a control panel 22 is set, and a plugboard 23, a water pressure valve 24 and a water pressure gauge 25 are set on the control panel 122, and the water pressure valve 24 is electrically connected with the water pressure gauge 25, so that the water pressure gauge 25 displays the water pressure in real time The water pressure value in the valve 24, the plug board 23 is convenient for external power supply, the control board one 22 is snapped and installed on the test frame 1, and the test main body 21 is also fixedly installed on the test frame 1. The test main body 21 is in the shape of a square, and its four corners All are fixedly connected with the test frame 1, and the test body 21 is located on the top of the control board 1 22, a penetrating horizontal groove 211 is set in the middle of the test body 21, and several metal tube placement grooves 212 are set on the test body 21, A clamping plate 213 is provided at the connection between the metal pipe placement groove 212 and the horizontal groove 211. Before carrying out the metal pipe blasting water pressure test, the clamping plate 213 is removed, the metal water pipe is placed in the metal pipe placement groove 212, and then the clamping plate 213 is placed in the metal pipe placement groove 212. The plate 213 is fixed at the connection between the metal tube placement groove 212 and the horizontal groove 211, and the fixing method is bolt fixing. The reason for fixing with the clamp plate 213 is that the tightness between the metal tube and the test body 21 can be improved, so that the metal tube During the hydraulic test, it is always fixed, the shape of the metal pipe is thicker than that of the middle area at both ends, and the shape of the metal pipe placement groove 212 provided on the test main body 21 matches the metal pipe;

The purpose of setting the horizontal groove 211 is to impact the low-hardness area of the metal pipe (the middle area of the metal pipe) through water pressure, and then test whether the metal pipe is qualified. The purpose of setting the metal pipe placement groove 212 is to separately Carry out hydrostatic test to test whether the internal pressure capacity of the metal pipe is qualified.

First embodiment:

Both ends in each metal pipe placement groove 212 are provided with a clamping assembly, and the clamping assembly includes a telescopic rod 214, a clamping plate 215 and a gasket layer 216 arranged on the side wall of the clamping plate 215, and the telescopic rod 214 One end is fixedly installed on the inner groove wall of the metal pipe placement groove 212, and the other end is fixedly connected with the clamping plate 215, and the gasket layer 216 is used as a buffer layer between the clamping plate 215 and the metal pipe to play a role of sealing , to ensure that the test liquid will not leak from both ends of the metal pipe during the hydrostatic test, and the energy supply source of the telescopic rod 214 is set in the test main body 21;

A pressure injection tube 218 is set in the clamping plate 215, and a part of the pressure injection tube 218 runs through the clamping plate 215 and the gasket layer 216, and is parallel to the wall surface of the gasket layer 216, so as to avoid the impact of the water pressure on the injection pressure tube during the hydraulic test. 218 causes damage, part of the area of the injection pressure tube 218 is a foldable area, and its foldable area is between the clamping plate 215 and the inner side wall of the test body 21;

The side wall of the test body 21 is provided with a conduit port 217 matching the water pressure valve 24. The water pressure valve 24 is not connected to the conduit port 217 during non-operation. An L-shaped pipe is installed between the valves 24. During the installation process, a sealing ring is used to encrypt the interface, so that the water pressure valve 24, the L-shaped pipe, the conduit port 217 and the pressure injection pipe 218 form a sealed circuit. The L-shaped pipe is convenient for personnel to clean the inside of the water pressure valve 24, and also divides the whole device into several small parts for installation. Since the water pressure is continuously in a high value state during the water pressure test, the water pressure valve 24, the L-shaped pipe and The injection pressure pipe 218 is easily damaged by the impact of water flow. The advantage of disassembling into small parts for installation is that only the damaged parts need to be replaced separately, which reduces the cost of use;

The telescopic rod 214 is driven by the PLC program of the device to move. When the telescopic rod 214 is extended, it drives the clamping plate 215 to move, and the clamping plate 215 moves to drive the gasket layer 216 to move, so that the clamping plate 215 is placed on the metal tube. The metal pipe in the placement groove 212 is closely attached. At this time, the gasket layer 216 is in a sealed connection with the cross-sectional side of the metal pipe mouth. After both ends of the metal pipe are sealed, the hydraulic pressure pre-test process is started. The length of each metal pipe is inconsistent, and the equipment can match metal pipes of different lengths for hydraulic testing through the adjustment of the telescopic rod 214 .

Second embodiment:

Taking accompanying drawing 6 as an example, the hydraulic valve 24 at both ends of the metal pipe placement tank 212 is divided into hydraulic valve 1 241 and hydraulic valve 2 242, hydraulic valve 1 241 is connected to pump 1 243, hydraulic valve 2 242 Connect the pump machine 2 244, and the metal pipe hydraulic test is divided into two parts: pre-test and formal test. The pre-test process opens the three-way valve 1 245 to the state where the barrel 1 41 is connected to the sealed circuit, and the corresponding three-way valve 2 246 Open to the state where barrel three 43 is connected to the sealing circuit, so that barrel one 41 is connected to barrel three 43. The pre-test is to open pump one 243, close pump two 244, and pass the liquid in barrel one 41 through pump one 243. The sealed circuit is injected into the metal pipe, and then injected into the corresponding bucket three 43 through the sealed circuit on the other side. The pre-test process is a one-way water injection process. The low-pressure water flow cleans up the impurities inside the metal pipe. During the official test process, high-pressure water is passed into the metal pipe, and the internal impurities will damage the inner wall of the metal pipe, which will affect the test results. If the metal pipe is qualified after the pre-test process, then Proceed to formal testing.

Third embodiment:

The official test is divided into full-pipe test and low-hardness area test. The full-pipe test is performed first, and the three-way valve 1 245 is opened to the state where the barrel 2 42 is connected to the sealed circuit, and the corresponding three-way valve 2 246 is opened to the barrel 4 44 and The state of the sealed circuit connection, the purpose of the multi-barrel test is to ensure that there is no impurity in the test environment. Turn off the pump 244, turn on the pump 1 243, and start the pump 243 to inject the liquid in the barrel 3 42 into the metal pipe at a high pressure value. When the liquid is in circulation state, it flows from barrel 2 42 into barrel 4 44. This is to test whether the metal pipe is qualified under the state of high-pressure water circulation, then turn on pump 2 244, turn off pump 1 243, and repeat the above test process ;

To test whether the high-pressure water flowing inside the pipeline is qualified, open the three-way valve 1 245 to the state where the barrel 2 42 is connected to the sealed circuit, close the three-way valve 2 246, calculate the internal volume V1 of the metal pipe, and move towards the metal pipe Inject V1 value of water into the inside, test whether the metal pipe is qualified in the case of blockage, open the three-way valve two 246 to the state where the barrel four 44 is connected to the sealing circuit, close the three-way valve one 245, and repeat the above process;

Multiple tests and adjustment of the state of the pipeline during each test result in high accuracy of the results of the metal pipe hydraulic test;

The low hardness area test is to continuously impact the middle area of the metal tube with high-pressure water flow through the bottom hole 219 set in the horizontal groove 211. Set matching pump machine three (not shown in the figure);

Different modes of testing increase the data volume of metal pipe hydrostatic testing. At the same time, hydrostatic testing of low-hardness areas of metal pipes can test high-quality metal pipes and provide data support for the sale of metal pipes according to quality.

Fourth embodiment:

The structure of the upper test area 2 and the lower test area 3 is consistent, and the multi-layer shape can increase the number of metal pipes tested at the same time, and the drainage pipeline 4 is set between the upper test area 2 and the lower test area 3, The top of the drain pipeline 4 is connected to the horizontal groove 211 in the upper test area 2, and the end is connected to the barrel 2 42, the horizontal groove 211 in the lower test area 3 is connected to the drain pipeline 4, and the upper test area 2 and the lower test area In the low-hardness area test carried out on the metal pipe in 3, the liquid poured into the horizontal tank 211 flows into the barrel 2 42 through the drainage pipeline 4, so that the liquid in the low-hardness area test is not wasted, because the low-hardness area test is long-term. For the process of continuous impact of time, if there is no liquid circulation process of this equipment, it will cause the problem of increased test cost.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device.

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (7)

1. The metal tube explosion water pressure testing device comprises a testing frame (1) and is characterized in that an upper testing area (2) and a lower testing area (3) are arranged in the testing frame (1);

the upper test area (2) and the lower test area (3) are provided with a test assembly and a pipeline assembly;

the test assembly includes: telescopic link (214)

A test body (21), the test body (21) being fixedly arranged on the test frame (1);

a transverse groove (211), wherein the transverse groove (211) is arranged on the test main body (21);

a metal tube placement groove (212), the metal tube placement groove (212) being provided on the test body (21);

the metal tube placing groove (212) is used for placing the metal tube.

2. The apparatus according to claim 1, wherein a clamping assembly is provided in the metal tube placement groove (212), the clamping assembly comprising:

a telescopic rod (214), wherein the telescopic rod (214) is arranged on the inner groove wall of the metal tube placing groove (212);

a clamping plate (215), the clamping plate (215) being arranged on the telescopic rod (214);

and a sealing cushion layer (216), wherein the sealing cushion layer (216) is arranged on the clamping plate (215).

3. A metal pipe bursting water pressure test device according to claim 2, characterised in that the test body (21) further comprises:

the injection pipe (218) is arranged on the clamping plate (215) and penetrates through the clamping plate (215) and the sealing cushion layer (216);

a water pressure valve (24), the water pressure valve (24) being arranged in the test frame (1);

and a conduit port (217), wherein the conduit port (217) is matched with the water pressure valve (24), and a detachable L-shaped pipe is arranged between the water pressure valve (24) and the conduit port (217).

4. A metal pipe bursting water pressure test device as claimed in claim 3, wherein the water pressure valve (24) is divided into a first water pressure valve (241) and a second water pressure valve (242);

the first hydraulic valve (241) is connected with the first pump (243), the first pump (243) is connected with the first three-way valve (245), and the first three-way valve (245) is communicated with the first barrel (41) and the second barrel (42);

the second hydraulic valve (242) is connected with the second pump (244), the second pump (244) is connected with the second three-way valve (246), and the second three-way valve (246) is communicated with the third barrel (43) and the fourth barrel (44).

5. The device for testing the bursting water pressure of a metal tube as set forth in claim 4, wherein a bottom hole (219) is provided in the transverse groove (211).

6. The metal tube blasting water pressure testing device according to claim 5, wherein a drainage pipeline (4) is arranged between the upper testing area (2) and the lower testing area (3), one end of the drainage pipeline (4) is connected with the transverse groove (211), and the other end of the drainage pipeline is connected with the second barrel (42).

7. The method for testing a metal pipe burst water pressure testing device according to claim 6, wherein step one, placing a metal pipe into a metal pipe placement groove (212);

step two, clamping the metal tube by using a clamping assembly;

step three, a pre-test flow is first carried out;

step four, performing a formal test flow;

fifthly, formally testing is divided into a full tube testing and a low hardness area testing, and the full tube testing is carried out preferentially.