Pressure vessel leakage detection device for petrochemical industry

Abstract

The utility model provides a petrochemical engineering pressure vessel leakage detection device, and relates to the technical field of sealing performance detection.The petrochemical engineering pressure vessel leakage detection device comprises a detection pool assembly and a pressure testing assembly.When the petrochemical engineering pressure vessel leakage detection device is used, a pressure vessel is firstly placed in a pool groove, the pressure vessel is clamped and fixed through a fixing clamping piece, and then fluorescent penetrating fluid is injected into the pool groove through an input pipe; the fluorescent penetrating fluid covers the pressure container, at the moment, the placing plate is placed at a pool opening of the pool groove, a sealing structure is formed in the pool groove in a bolt mode and the like, the gas inlet pipe is connected to the pressure container through the flange connector, test gas is injected into the pressure container through the gas inlet pipe, and meanwhile gas is injected into the pool groove through the input pipe. The pressure outside the pressure container is slightly larger than the pressure in the pressure container, the curved pipe is filled with liquid to form a liquid sealing pipe, the air inlet pipe valve is closed at the moment, time pressure testing is carried out at the moment, and the problems that leakage observation is not visual enough and otherwise leakage is likely to be missed in the prior art are solved.

Description

Technical Field

[0001] This application relates to the technical field of sealing detection, and more specifically, to a leakage detection device for pressure vessels used in petrochemical industry. Background Art

[0002] A pressure vessel is a sealed container that can withstand pressure. It is often used as a reaction kettle and has a wide range of applications in the chemical industry. To ensure the reliability of the pressure vessel during use, leakage detection needs to be carried out before the pressure vessel leaves the factory.

[0003] In the prior art, a pressure vessel leakage detection device with the patent application number "CN220437662U" mainly includes a water tank and an inflation device. When detecting the leakage of the pressure vessel, first connect the output end of the inflation device to the air inlet of the pressure vessel, then place the pressure vessel in the water tank and make the pressure vessel below the liquid level. Then, fill the pressure vessel with a certain pressure of gas through the inflation device. After that, it can be inferred whether the pressure vessel is sealed by observing whether there are bubbles in the water. In the process of implementing this technical solution, the inventor found that there are at least the following problems in the prior art:

[0004] In the prior art, whether the pressure vessel leaks is inferred by whether there are bubbles in the water. However, when observing the leakage, the bubbles are relatively small and not obvious enough, which is not intuitive enough. The staff needs to be highly concentrated, otherwise it is easy to miss. In addition, in the chemical industry, the inside of the pressure vessel usually works in a heating environment, and the internal pressure is relatively high, which requires a certain pressure resistance for the pressure vessel. In the prior art, a separate pressure test needs to be carried out, and the test process is complicated, so there are deficiencies. Summary of the Utility Model

[0005] To make up for the above deficiencies, the present utility model provides a leakage detection device for pressure vessels used in petrochemical industry, which can magnify the performance when the pressure vessel leaks, making it easier for the staff to observe, and at the same time can carry out a pressure test, with stronger functionality.

[0006] This application is implemented as follows:

[0007] A detection pool assembly, the detection pool assembly includes a pool trough, and an input pipe and a discharge pipe are respectively arranged on the pool trough;

[0008] Pressure testing assembly, the pressure testing assembly includes a placement plate, an intake pipe, an intake pipe valve, a curved pipe, a flange interface, a fixed clamping member and a pressure vessel. The intake pipes are uniformly arranged on the placement plate. The intake pipe valve is installed at the pipe orifice of the intake pipe. The curved pipe is fixedly communicated with the intake pipe. The flange interface is fixedly connected to another pipe orifice of the intake pipe. The pressure vessel is connected to the intake pipe through the flange interface. The fixed clamping member is fixedly connected in the pool tank, and the fixed clamping member clamps the pressure vessel.

[0009] In an embodiment of the present application, the fixed clamping member includes a mounting support plate, a clamping ring groove, a mounting groove, an electric telescopic rod, a connecting block and a clamping curved plate. The clamping ring groove is arranged on the mounting support plate. The number of the clamping ring grooves corresponds to the pressure vessel. The mounting grooves are opened on both sides of the clamping ring groove. The electric telescopic rod is fixedly connected in the mounting groove. The connecting block is fixedly connected to the output end of the electric telescopic rod. The connecting block is slidably connected to the mounting groove. The clamping curved plate is fixedly connected to the connecting block. The two clamping curved plates press against the side surface of the pressure vessel.

[0010] In an embodiment of the present application, an anti-slip pad is arranged on the clamping curved plate.

[0011] In an embodiment of the present application, lifting rings are fixedly connected to both sides of the placement plate and the pressure vessel.

[0012] In an embodiment of the present application, positioning columns are arranged around the pool mouth of the pool tank. Corresponding positioning grooves are opened around the placement plate. The positioning columns are inserted into the positioning grooves.

[0013] In an embodiment of the present application, valves are arranged on both the input pipe and the discharge pipe.

[0014] In an embodiment of the present application, a pigment solvent is injected into the curved pipe.

[0015] In an embodiment of the present application, a placement groove is opened at the bottom end of the pool tank. The ring opening of the placement groove is consistent with the ring opening of the fixed clamping member.

[0016] In an embodiment of the present application, a plurality of civil air defense openings are opened on the side surface of the pool tank.

[0017] In an embodiment of the present application, a plurality of the intake pipes are placed on the placement plate. The fixed clamping member clamps a plurality of the pressure vessels, and correspondingly, a plurality of the pressure vessels participate in the test simultaneously.

[0018] The beneficial effects of the present application are as follows: When in use, first place the pressure vessel into the tank, clamp and fix the pressure vessel through the fixed clamping member, then inject the fluorescent penetrant into the tank through the input pipe so that the fluorescent penetrant covers the pressure vessel. At this time, place the placement plate on the tank opening of the tank and form a sealed structure in the tank by means of bolts, etc. Connect the intake pipe to the pressure vessel through the flange interface, inject the test gas into the pressure vessel through the intake pipe, and at the same time inject gas into the tank through the input pipe so that the pressure outside the pressure vessel is slightly greater than the pressure inside the pressure vessel. At the same time, the curved pipe is filled with liquid to form a liquid-sealed pipe. At this time, close the intake pipe valve, and then conduct a time-pressure test. When there is a leak in the pressure vessel or a gap is generated due to insufficient compressive resistance, the fluorescent penetrant will penetrate into the interior of the pressure vessel through the gap of the pressure vessel under the action of pressure, and at the same time squeeze the gas, and the gas will be released through the curved pipe, so that the liquid in the curved pipe continuously flows out, thereby magnifying the leakage result of the pressure vessel and facilitating the staff to observe. After the test is stopped, take out the pressure vessel. By observing the result of the fluorescent penetrant infiltrating into the interior of the pressure vessel, it is possible to easily and conveniently judge the leakage position of the pressure vessel, thus facilitating maintenance. While the device conducts a leak test on the pressure vessel, it can also conduct a pressure test on the pressure vessel, with stronger functionality, solving the problems in the prior art that when observing leaks, the bubbles appear relatively small, the bubbles are not obvious enough, not intuitive enough, and the staff needs to highly concentrate their attention, otherwise it is easy to miss, and the problem that after a leak test in the prior art, a separate pressure test needs to be carried out again, and the test process is complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0020] Figure 1 FIG. [X] is a schematic structural diagram of a pressure vessel leak detection device for petrochemical industry provided by an embodiment of the present application;

[0021] Figure 2 FIG. [X] is a schematic structural diagram of a pressure test component provided by an embodiment of the present application;

[0022] Figure 3 FIG. [X] is a schematic structural diagram of a fixed clamping member provided by an embodiment of the present application;

[0023] Figure 4 FIG. [X] is a schematic structural diagram of a civil air defense opening provided by an embodiment of the present application;

[0024] In the figure: 100 - detection cell assembly; 110 - cell tank; 120 - input pipe; 130 - discharge pipe; 140 - positioning post; 150 - placement groove; 160 - civil air defense opening; 200 - pressure test assembly; 210 - placement plate; 220 - intake pipe; 230 - intake pipe valve; 240 - curved pipe; 241 - pigment solvent; 250 - flange interface; 260 - fixed clamping member; 261 - installation support plate; 262 - clamping ring groove; 263 - installation groove; 264 - electric telescopic rod; 265 - connecting block; 266 - clamping curved plate; 267 - anti-slip pad; 270 - pressure vessel; 280 - lifting ring; 290 - positioning groove; Detailed implementation manners

[0025] The following will, with reference to the accompanying drawings, elaborate on some implementation manners of the present utility model. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0026] As Figures 1-4 shown, a pressure vessel leakage detection device for petrochemical industry according to an embodiment of the present application includes:

[0027] A detection cell assembly 100, the detection cell assembly 100 includes a cell tank 110, and an input pipe 120 and a discharge pipe 130 are respectively provided on the cell tank 110;

[0028] Pressure test assembly 200, the pressure test assembly 200 includes a placement plate 210, an air inlet pipe 220, an air inlet pipe valve 230, a curved pipe 240, a flange interface 250, a fixed clamping member 260, and a pressure vessel 270. The air inlet pipes 220 are uniformly arranged on the placement plate 210. The air inlet pipe valve 230 is installed at the nozzle of the air inlet pipe 220. The curved pipe 240 is fixedly connected to the air inlet pipe 220. The flange interface 250 is fixedly connected to another nozzle of the air inlet pipe 220. The pressure vessel 270 is connected to the air inlet pipe 220 through the flange interface 250. The fixed clamping member 260 is fixedly connected inside the tank 110, and the fixed clamping member 260 clamps the pressure vessel 270. It should be noted that the placement plate 210 is placed on the tank 110, and a sealing strip is arranged around the placement plate 210. After being fastened by bolts and nuts, a sealed structure is formed inside the tank 110. During use, first place the pressure vessel 270 into the tank 110, clamp and fix the pressure vessel 270 through the fixed clamping member 260, then inject the fluorescent penetrant into the tank 110 through the input pipe 120 so that the fluorescent penetrant covers the pressure vessel 270. At this time, place the placement plate 210 on the mouth of the tank 110, and form a sealed structure inside the tank 110 by means of bolts, etc. Connect the air inlet pipe 220 to the pressure vessel 270 through the flange interface 250, inject the test gas into the pressure vessel 270 through the air inlet pipe 220, and at the same time inject gas into the tank 110 through the input pipe 120 so that the pressure outside the pressure vessel 270 is slightly greater than the pressure inside the pressure vessel 270. At the same time, the curved pipe 240 is filled with liquid to form a liquid-sealed pipe. At this time, close the air inlet pipe valve 230, and then conduct a time-pressure test. When there is a leak in the pressure vessel 270 or a gap is generated due to insufficient compressive resistance, the fluorescent penetrant will penetrate into the pressure vessel 270 through the gap of the pressure vessel 270 under the action of pressure, and at the same time squeeze the gas, and the gas will be released through the curved pipe 240, so that the liquid in the curved pipe 240 continuously flows out, thereby magnifying the leakage result of the pressure vessel 270, facilitating the staff to observe. After the test is stopped, take out the pressure vessel 270. By observing the result of the fluorescent penetrant infiltrating into the pressure vessel 270, it is easy to judge the leakage position of the pressure vessel 270, thus facilitating maintenance. While this device conducts a leak test on the pressure vessel 270, it can also conduct a pressure test on the pressure vessel 270, with stronger functionality, solving the problems in the prior art that when observing leaks, the bubbles are relatively small, the bubbles are not obvious, not intuitive enough, and the staff needs to be highly concentrated, otherwise it is easy to miss, and after the leak test in the prior art, a separate pressure test needs to be carried out again, and the test process is complicated.

[0029] Such as Figure 2As shown, lifting rings 280 are fixedly connected to both sides of the placement plate 210 and the pressure vessel 270. The lifting rings 280 facilitate the installation of the placement plate 210 and also facilitate placing the pressure vessel 270 into the tank 110. Valves are provided on both the input pipe 120 and the discharge pipe 130. The valves are beneficial for controlling the input pipe 120 and the discharge pipe 130. A placement groove 150 is formed at the bottom end of the tank 110, and the rim of the placement groove 150 is consistent with the rim of the fixed clamping member 260. The placement groove 150 is used to position the pressure vessel 270 in the tank 110 for convenient placement. Multiple inlet pipes 220 are placed on the placement plate 210, and the fixed clamping member 260 clamps multiple pressure vessels 270, corresponding to multiple pressure vessels 270 participating in the test simultaneously. Having multiple pressure vessels 270 participate in the test simultaneously thus improves the test efficiency.

[0030] As Figure 3 shown, the fixed clamping member 260 includes an installation support plate 261, a clamping ring groove 262, an installation groove 263, an electric telescopic rod 264, a connection block 265, and a clamping curved plate 266. The clamping ring groove 262 is provided on the installation support plate 261, and the number of clamping ring grooves 262 corresponds to that of the pressure vessels 270. Installation grooves 263 are formed on both sides of the clamping ring groove 262. The electric telescopic rod 264 is fixedly connected in the installation groove 263. The connection block 265 is fixedly connected to the output end of the electric telescopic rod 264. The connection block 265 is slidably connected to the installation groove 263. The clamping curved plate 266 is fixedly connected to the connection block 265, and the two clamping curved plates 266 press against the side surface of the pressure vessel 270. Place the pressure vessel 270 into the clamping ring groove 262, start the electric telescopic rod 264, and make the connection block 265 slide on the installation groove 263, so that the clamping curved plate 266 clamps the pressure vessel 270. An anti-slip pad 267 is provided on the clamping curved plate 266. The anti-slip pad 267 is used to protect the side surface of the pressure vessel 270.

[0031] As Figure 4 shown, positioning columns 140 are provided around the mouth of the tank 110, and corresponding positioning grooves 290 are formed around the placement plate 210. The positioning columns 140 are inserted into the positioning grooves 290. The positioning columns 140 facilitate the rapid positioning of the placement plate 210, thus facilitating placing the placement plate 210 at the mouth of the tank 110. A pigment solvent 241 is injected into the curved pipe 240. Using the pigment solvent 241 makes it more convenient to observe the flow of the liquid when leakage occurs. Multiple civil air defense openings 160 are formed on the side surface of the tank 110. Among them, the civil air defense opening 160 is a sealed hatch door. The civil air defense opening 160 facilitates the staff to enter the tank 110 for operations such as installation and cleaning.

[0032] In summary, the working principle of a pressure vessel leakage detection device for petrochemical industry in an embodiment of the present utility model is as follows: During use, first place the pressure vessel 270 into the tank 110, and place the pressure vessel 270 into the clamping ring groove 262. Start the electric telescopic rod 264 to make the connecting block 265 slide on the installation groove 263, so that the clamping curved plate 266 clamps the pressure vessel 270. Then inject the fluorescent penetrant into the tank 110 through the input pipe 120 to make the fluorescent penetrant cover the pressure vessel 270. At this time, place the placement plate 210 on the mouth of the tank 110 and form a sealed structure in the tank 110 by means of bolts, etc. Connect the inlet pipe 220 to the pressure vessel 270 through the flange interface 250, and inject the test gas into the pressure vessel 270 through the inlet pipe 220. At the same time, inject gas into the tank 110 through the input pipe 120 to make the pressure outside the pressure vessel 270 slightly greater than the pressure inside the pressure vessel 270. At the same time, the curved pipe 240 is filled with liquid to form a liquid-sealed pipe. At this time, close the inlet pipe valve 230, and then conduct a time-pressure test. When there is a leakage in the pressure vessel 270 or a gap is generated due to insufficient compressive resistance, the fluorescent penetrant will penetrate into the pressure vessel 270 through the gap of the pressure vessel 270 under the action of pressure, and at the same time squeeze the gas, and the gas will be released through the curved pipe 240, so that the liquid in the curved pipe 240 continuously flows out, thereby magnifying the leakage result of the pressure vessel 270 for the convenience of the staff to observe. After the test is stopped, take out the pressure vessel 270. By observing the result of the fluorescent penetrant infiltrated into the pressure vessel 270, it is possible to easily and conveniently judge the leakage position of the pressure vessel 270, thus facilitating the maintenance. While this device conducts a leakage test on the pressure vessel 270, it can also conduct a pressure test on the pressure vessel 270, with stronger functionality, solving the problems in the prior art that when observing leakage, the bubbles are relatively small, the bubbles are not obvious enough, not intuitive enough, and the staff needs to highly concentrate their attention, otherwise it is easy to miss, and the problem that after the leakage test in the prior art, a separate pressure test needs to be conducted again, and the test process is complicated.

[0033] The above are only the embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A pressure vessel leakage detection device for petrochemical industry, characterized in that, Comprising: A detection cell assembly (100), the detection cell assembly (100) includes a cell tank (110), and an input pipe (120) and a discharge pipe (130) are respectively provided on the cell tank (110); A pressure test assembly (200), the pressure test assembly (200) includes a placement plate (210), an air inlet pipe (220), an air inlet pipe valve (230), a curved pipe (240), a flange interface (250), a fixed clamping member (260) and a pressure vessel (270). The air inlet pipes (220) are uniformly arranged on the placement plate (210), the air inlet pipe valve (230) is installed at the pipe orifice of the air inlet pipe (220), the curved pipe (240) is fixedly communicated with the air inlet pipe (220), the flange interface (250) is fixedly connected to another pipe orifice of the air inlet pipe (220), the pressure vessel (270) is connected to the air inlet pipe (220) through the flange interface (250), the fixed clamping member (260) is fixedly connected inside the cell tank (110), and the fixed clamping member (260) clamps the pressure vessel (270).

2. The leak detection device for a pressure vessel used in petrochemical industry according to claim 1, characterized in that, The fixed clamping member (260) includes a mounting support plate (261), a clamping ring groove (262), a mounting groove (263), an electric telescopic rod (264), a connecting block (265) and a clamping curved plate (266). The clamping ring groove (262) is arranged on the mounting support plate (261), the number of the clamping ring grooves (262) corresponds to the pressure vessel (270), the mounting grooves (263) are opened on both sides of the clamping ring groove (262), the electric telescopic rod (264) is fixedly connected inside the mounting groove (263), the connecting block (265) is fixedly connected to the output end of the electric telescopic rod (264), the connecting block (265) is slidably connected to the mounting groove (263), the clamping curved plate (266) is fixedly connected to the connecting block (265), and the two clamping curved plates (266) press against the side surface of the pressure vessel (270).

3. The leakage detection device for petrochemical pressure vessels according to claim 2, characterized in that, An anti-slip pad (267) is provided on the clamping curved plate (266).

4. A pressure vessel leakage detection device for petrochemical industry according to claim 1, characterized in that, Lifting rings (280) are fixedly connected to both sides of the placement plate (210) and the pressure vessel (270).

5. A pressure vessel leakage detection device for petrochemical use according to claim 1, characterized in that, Positioning columns (140) are arranged around the cell mouth of the cell tank (110), positioning grooves (290) corresponding to the positioning columns are opened around the placement plate (210), and the positioning columns (140) are inserted into the positioning grooves (290).

6. The leakage detection device for a petrochemical pressure vessel according to claim 1, wherein, Valves are provided on both the input pipe (120) and the discharge pipe (130).

7. An oil and chemical industry pressure vessel leakage detection device according to claim 1, characterized in that, A pigment solvent (241) is injected into the curved pipe (240).

8. A pressure vessel leakage detection device for petrochemical use according to claim 1, characterized in that, A placement groove (150) is opened at the bottom end of the cell tank (110), and the rim of the placement groove (150) is consistent with the rim of the fixed clamping member (260).

9. The leakage detection device for a pressure vessel used in petrochemical industry according to claim 1, characterized in that, A plurality of civil air defense openings (160) are opened on the side surface of the cell tank (110).

10. The leakage detection device for a petrochemical pressure vessel according to claim 1, characterized in that, A plurality of the intake pipes (220) are placed on the placement plate (210), and the fixed clamping members (260) clamp a plurality of the pressure vessels (270), and correspondingly, a plurality of the pressure vessels (270) participate in the test simultaneously.

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