CN216309366U - Exhaust device for container hydrostatic test - Google Patents
Exhaust device for container hydrostatic test Download PDFInfo
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- CN216309366U CN216309366U CN202122717405.5U CN202122717405U CN216309366U CN 216309366 U CN216309366 U CN 216309366U CN 202122717405 U CN202122717405 U CN 202122717405U CN 216309366 U CN216309366 U CN 216309366U
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Abstract
The utility model relates to the technical field of container hydrostatic tests, and particularly discloses a container hydrostatic test exhaust device, wherein a short pipe A, a short pipe B and a short pipe C are respectively connected with three interfaces of a three-way joint; the connecting flange is connected with the other end of the short pipe A; one end of the pressure gauge isolation valve is connected with the other end of the short pipe B, and the other end of the pressure gauge isolation valve is connected with the pressure gauge joint; one end of the water-filled isolating valve is connected with the other end of the short pipe C, and the other end of the water-filled isolating valve is connected with the pagoda head. The utility model has the advantages of economy, no requirement on the size of the connecting pipe of the equipment and no generation of foreign matters in the container.
Description
Technical Field
The utility model belongs to the technical field of container hydrostatic tests, and particularly relates to an exhaust device and method for a container hydrostatic test.
Background
According to the requirements of the in-service inspection outline of the pressure vessel, the pressure vessel needs to be subjected to a pressure-resistant test regularly to inspect the strength and the sealing property of the equipment. At present, the pressure resistance test of a pressure vessel is generally carried out by using water as a medium. When the pressure container is used for carrying out a hydrostatic test, the container to be pressurized needs to be filled with water and exhausted, so that the inner cavity of the container to be pressurized is filled with water, and then the pressure is increased to a test pressure through the pressure pump. During the filling process, it is necessary to ensure that the gas in the container can be sufficiently exhausted, otherwise the air remained in the equipment is accumulated in the container, and the water in the container cannot be filled. The residual gas in the container can also cause unstable indication of a pressure gauge during pressing, prolong pressing time and the like, and influence the result of the container hydrostatic test.
In general, the highest point of the top of the container is provided with a vent line, and a vent valve on the vent line is opened for venting during water filling. However, in the practical application process, part of container equipment is found, the design does not consider the working condition of the subsequent hydrostatic test, and the top end of the container does not have a formal exhaust channel, so that the original pipeline of the container needs to be cut for exhausting when the container is executed in a nuclear power field, welding recovery needs to be carried out again after pressurization is finished, complicated procedures are brought to field execution operation, time and labor are wasted, and when the pipeline is recovered, the problems that welding cannot be carried out due to the fact that the pipeline is cut and the pipeline is positioned at the top, argon filling is difficult to protect welding, and welding cannot be carried out due to narrow position and space are easily caused. Meanwhile, the condition that no connecting pipe is arranged above part of the container and no rigid interface exists in part of the container, so that the hydraulic test of the container cannot be carried out easily. Special methods and special devices are considered to assist in venting the container.
For this reason, CN101672742A discloses "an exhaust apparatus for a hydraulic pressure test of a pressure container", which is used to arrange a floating object inside the container and connect a flexible hose to the outside of the container, wherein during the water filling process, the floating object rises with the rising of the water level, and the gas inside the container enters into an air hole at the top of the floating object and connected with the hose, and is exhausted to the outside of the container, thereby achieving the exhaust function. The utility model solves the problem that most pressure vessel equipment has no proper air discharge point in the hydraulic test process, and is simple and easy to operate. However, the utility model has the disadvantages that floating objects in the container are easy to form foreign objects if the floating objects are not firmly connected, which is avoided to the utmost extent in the nuclear power field. Meanwhile, the utility model has the limitation that the floater can be placed in the container, and for some equipment with smaller container interfaces, the floater cannot be placed in the container; for example, when the test object is a heat transfer pipe of a heat exchanger, since the heat transfer pipe diameter is generally small, a float cannot normally float inside the heat transfer pipe, and the way of exhausting air using the float is obviously not feasible.
Therefore, a new method is needed to solve the problem of the equipment being unable to exhaust.
Disclosure of Invention
The utility model aims to provide a container hydrostatic test exhaust device and a method, which aim to solve the exhaust problem of equipment which does not have an effective air exhaust point and cannot be internally provided with an exhaust pipeline.
The technical scheme of the utility model is as follows:
a container hydrostatic test exhaust device comprises a connecting flange, a pressure gauge joint, a pressure gauge isolating valve, a short pipe A, a short pipe B, a short pipe C, a three-way joint, a water-filling isolating valve and a pagoda head;
the short pipe A, the short pipe B and the short pipe C are respectively connected with three connectors of the three-way joint;
the connecting flange is connected with the other end of the short pipe A;
one end of the pressure gauge isolation valve is connected with the other end of the short pipe B, and the other end of the pressure gauge isolation valve is connected with the pressure gauge joint;
one end of the water-filling isolation valve is connected with the other end of the short pipe C, and the other end of the water-filling isolation valve is connected with the pagoda head.
And adjacent parts of the connecting flange, the pressure gauge joint, the pressure gauge isolating valve, the short pipe A, the short pipe B, the short pipe C, the three-way joint, the water-filling isolating valve and the pagoda head are connected in a welding mode.
The connecting flange is connected with the pressure vessel interface flange through a bolt.
The pressure gauge joint is connected with the vacuum gauge through threads.
One end of the negative pressure pipe is connected with the pagoda head, and the other end of the negative pressure pipe is connected with the vacuum pump.
The utility model has the beneficial effects that:
(1) compared with the method that the cutting equipment body is used for connecting the pipe and the auxiliary exhaust pipeline is added, the method has the advantages of being more economical and simple and rapid;
the increased welding and nondestructive testing time after the pipeline is cut is avoided; for the work of a radiation control area, the increase of radiation dose received by personnel is avoided; meanwhile, the risk that the pipeline is cut and damaged or cannot be rewelded due to the difficulty in argon filling and poor field space is avoided.
(2) Compared with the mode of arranging the exhaust device in the container to assist in exhausting, the utility model does not need to arrange the exhaust device in the container, and can not cause the device to be incapable of being arranged because the size of the exhaust device exceeds that of the device connecting pipe, so that the device connecting pipe size is not required, and foreign matters can not be generated in the container.
Drawings
FIG. 1 is a plan view of an embodiment of the present invention;
fig. 2 is an enlarged plan view of a portion a in fig. 1.
In the figure: 1. a connecting flange; 2. a pressure gauge joint; 3. a pressure gauge isolation valve; 4. a short pipe; 5. a three-way joint; 6. a water-filled isolation valve; 7. a pagoda head; 8. a vacuum pump; 9. a negative pressure tube; 10. a pressure vessel; 11. a pressure vessel interface flange; 12. a vacuum gauge.
Detailed Description
The utility model is described in further detail below with reference to the figures and the embodiments.
The exhaust device for the container hydrostatic test shown in figures 1-2 comprises a connecting flange 1, a pressure gauge joint 2, a pressure gauge isolation valve 3, a short pipe A, a short pipe B4, a short pipe C, a three-way joint 5, a water-filling isolation valve 6 and a pagoda head 7.
The short pipe A, the short pipe B4 and the short pipe C are respectively connected with three connectors of the three-way joint 5;
the connecting flange 1 is connected with the other end of the short pipe A;
one end of the pressure gauge isolation valve 3 is connected with the other end of the short pipe B4, and the other end of the pressure gauge isolation valve 3 is connected with the pressure gauge joint 2;
one end of the water-filled isolating valve 6 is connected with the other end of the short pipe C, and the other end of the water-filled isolating valve 6 is connected with the pagoda head 7.
And adjacent parts of the connecting flange 1, the pressure gauge joint 2, the pressure gauge isolating valve 3, the short pipe A, the short pipe B4, the short pipe C, the three-way joint 5, the water-filling isolating valve 6 and the pagoda head 7 are connected in a welding mode.
The connecting flange 1 is connected with the pressure vessel interface flange 11 through bolts; the pressure gauge joint 2 is connected with the vacuum gauge 12 through threads; one end of the negative pressure pipe 9 is connected with the pagoda head 7, and the other end is connected with the vacuum pump 8.
The container hydrostatic test exhaust method is operated by adopting the device, and comprises the following steps:
step 1: fully opening the pressure gauge isolation valve 3 and the water filling isolation valve 6, and starting the vacuum pump 8;
step 2: observing the indication number of the vacuum meter 12, when the pressure is changed from 0MPa (gauge pressure) to-0.1 MPa (gauge pressure), the air in the pressure container 10 is completely exhausted, the interior of the pressure container 10 is in a vacuum state, the vacuum pump 8 is closed, and the water-filled isolating valve 6 is closed;
and step 3: the negative pressure pipe 9 and the vacuum pump 8 are removed, a water filling hose is replaced on the pagoda head 7 and is connected with a water source, the water source is opened, the water inlet isolation valve 6 is opened, and water starts to enter the pressure container 10 due to the negative pressure effect inside the pressure container 10;
and 4, step 4: and observing the indication number of the vacuum meter 12, when the indication number is 0MPa (gauge pressure), indicating that the water in the pressure container 10 is filled, closing the water filling isolation valve 6, closing the water source, closing the pressure gauge isolation valve 3, and finishing the water filling and exhausting process of the pressure container 10.
In the practical application process, a user can manufacture the vacuumizing exhaust device matched with the equipment to be pressed according to the practical situation. The exhaust mode of vacuumizing the container can effectively solve the problem that various containers cannot normally exhaust, and the method is simple and easy to operate, high in economy and wide in application range.
While there have been shown and described what are at present considered the fundamental principles of the utility model, its essential features and advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a container hydrostatic test exhaust apparatus which characterized in that: comprises a connecting flange (1), a pressure gauge joint (2), a pressure gauge isolating valve (3), a short pipe A, a short pipe B (4), a short pipe C, a three-way joint (5), a water-filled isolating valve (6) and a pagoda head (7);
the short pipe A, the short pipe B (4) and the short pipe C are respectively connected with three connectors of the three-way joint (5);
the connecting flange (1) is connected with the other end of the short pipe A;
one end of the pressure gauge isolation valve (3) is connected with the other end of the short pipe B (4), and the other end of the pressure gauge isolation valve (3) is connected with the pressure gauge joint (2);
one end of the water-filled isolating valve (6) is connected with the other end of the short pipe C, and the other end of the water-filled isolating valve (6) is connected with the pagoda head (7).
2. A container hydrostatic test venting device as defined in claim 1, wherein: and adjacent parts of the connecting flange (1), the pressure gauge joint (2), the pressure gauge isolating valve (3), the short pipe A, the short pipe B (4), the short pipe C, the three-way joint (5), the water-filled isolating valve (6) and the pagoda head (7) are connected in a welding mode.
3. A container hydrostatic test venting device as defined in claim 2, wherein: the connecting flange (1) is connected with the pressure vessel interface flange (11) through bolts.
4. A container hydrostatic test venting device as defined in claim 3, wherein: the pressure gauge joint (2) is connected with the vacuum gauge (12) through threads.
5. A container hydrostatic test venting device as defined in claim 4, wherein: one end of the negative pressure pipe (9) is connected with the pagoda head (7), and the other end is connected with the vacuum pump (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717405.5U CN216309366U (en) | 2021-11-08 | 2021-11-08 | Exhaust device for container hydrostatic test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122717405.5U CN216309366U (en) | 2021-11-08 | 2021-11-08 | Exhaust device for container hydrostatic test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216309366U true CN216309366U (en) | 2022-04-15 |
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ID=81119059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122717405.5U Active CN216309366U (en) | 2021-11-08 | 2021-11-08 | Exhaust device for container hydrostatic test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216309366U (en) |
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2021
- 2021-11-08 CN CN202122717405.5U patent/CN216309366U/en active Active
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