Pressure testing device for chemical liquid container

Abstract

The invention relates to the technical field of pressure testing, in particular to a pressure testing device for a chemical liquid container. Comprising a shell, a mounting base, a placement base, a first inflator pump, a connecting pipe, a connector and the like, the mounting base is connected to the side face of the shell, the placement base is connected to the bottom in the shell, a container body can be placed at the top of the placement base, and the first inflator pump is mounted at the top of the mounting base; the connector is connected to the other end of the connecting pipe and used for being connected with the connector of the container body. The camera can shoot a leakage part and transmit an image to the external displayer, an operator can confirm the specific leakage position through the displayer, then a leakage point is automatically marked through the marking pen, and therefore the leakage point of the container body can be automatically positioned and marked; the tedious process of manually checking connection points and welding seams one by one can be avoided, and the detection efficiency and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pressure testing, and in particular to a pressure testing device for a chemical liquid container. Background Art

[0002] With the rapid development of the chemical industry, the safety and reliability requirements for chemical liquid containers are becoming increasingly higher. As key equipment for storing and transporting various chemical substances, the safety of chemical liquid containers during use is particularly important. In order to prevent safety accidents caused by container rupture or leakage, they must be subjected to strict pressure testing to ensure that they can withstand certain internal and external pressures.

[0003] Traditionally, the pressure test method is to fill the chemical liquid container with water until it is fully loaded, and then observe it for a period of time to check whether the container is leaking. This method is feasible for small containers, but it faces obvious challenges for large chemical liquid containers. On the one hand, the filling process of large containers takes a long time, which will seriously affect the test efficiency. On the other hand, the water in the container needs to be completely drained after the test, which will also increase the difficulty of operation. In addition, the existing pressure test method usually relies on manual inspection of each connection point and weld one by one in the process of detecting whether the container is leaking, which is inefficient. Summary of the invention

[0004] In view of this, the present invention provides a pressure testing device for a chemical liquid container, which can overcome the disadvantages of low work efficiency, such as it takes a lot of time to fill the chemical liquid container with water during pressure testing, and then each connection point and weld needs to be manually checked one by one.

[0005] The technical solution of the present invention is: a pressure testing device for a chemical liquid container, comprising an outer shell, a mounting seat, a placement seat, a first air pump, a connecting pipe, a connecting head, a blocking block, an indicating mechanism and an observing mechanism, the mounting seat is connected to the side of the outer shell, the placement seat is connected to the inner bottom of the outer shell, and the container body can be placed on the top of the placement seat, the first air pump is installed on the top of the mounting seat, one end of the connecting pipe is connected to the air outlet of the first air pump, the connecting head is connected to the other end of the connecting pipe, the connecting head is used to connect to the interface of the container body, the blocking block is used to block the interface of the container body, the indicating mechanism is used to point out the leakage area of ​​the container body, and the observing mechanism is used to observe the leakage area of ​​the container body.

[0006] As a preferred technical solution of the present invention, the indicating mechanism includes a mounting plate, a hanging ring, an exhaust pipe, a partition and a fixing assembly. The mounting plate is arranged inside the outer shell, the hanging ring is connected to the top of the mounting plate at intervals, the exhaust pipe is connected to the middle of the mounting plate, the partition is connected to the bottom of the mounting plate at circumferential intervals, and the fixing assembly is used to fix the position of the mounting plate.

[0007] As a preferred technical solution of the present invention, the fixing assembly includes a mounting block, a screw, a handle, a threaded sleeve, a pressure block and a protrusion. The mounting block is circumferentially symmetrically connected to the inner wall of the outer shell, the screw is rotatably connected to the mounting block, the handle is connected to the upper end of the screw, the threaded sleeve is threadedly connected to the screw, and the pressure block and the protrusion are both connected to the outer wall of the threaded sleeve.

[0008] As a preferred technical solution of the present invention, the indicating mechanism also includes a control valve, and the control valve is installed on the exhaust pipe.

[0009] As a preferred technical solution of the present invention, the indicating mechanism further includes a retaining ring, and the two retaining rings are both connected to the bottom of the partition.

[0010] As a preferred technical solution of the present invention, the observation mechanism includes a first electric slide rail, a second electric slide rail, a third electric slide rail, a camera and a marking assembly. The first electric slide rail is installed at the bottom of the shell, the second electric slide rail is installed on the slider of the first electric slide rail, the third electric slide rail is installed on the slider of the second electric slide rail, the camera is installed on the slider of the third electric slide rail, and the marking assembly is used to mark the leakage position of the container body.

[0011] As a preferred technical solution of the present invention, the marking component includes a driving motor, a rotating sleeve, a connecting rod, an electric push rod and a marking pen. The driving motor is installed at the end of the camera, the rotating sleeve is rotatably connected to the outside of the camera, the connecting rod connects the rotating sleeve and the output shaft of the driving motor, the electric push rod is installed on the outside of the rotating sleeve, and the marking pen is connected to the telescopic rod of the electric push rod.

[0012] As a preferred technical solution of the present invention, it also includes a mounting rod, an airbag, a second air pump, a shunt pipe and an exhaust valve. The mounting rod is connected to the inner wall of the outer shell at circumferential intervals, the airbag is connected to the side of the mounting rod, the second air pump is installed on the top of the mounting seat, the shunt pipe connects the airbag and the air outlet of the second air pump, and the exhaust valve is installed on the shunt pipe.

[0013] Beneficial effects: 1. The camera of the present invention can take pictures of the leakage site and transmit the image to an external display. The operator can confirm the specific location of the leakage through the display, and then automatically mark the leakage point with a marker pen. In this way, the leakage point of the container body can be automatically located and marked, ensuring the accuracy and reliability of the detection. It can avoid the tedious process of manually checking the connection points and welds one by one, and improve the detection efficiency and accuracy.

[0014] 2. The present invention can significantly reduce the amount of water required for testing by designing an airbag to fill the gap between the outer shell and the container body. This not only speeds up the water injection speed and shortens the test preparation time, but also reduces the waste of water resources. At the same time, the inflation volume of the airbag can be adjusted according to the diameter of the container body, ensuring the effective filling of the airbag and further improving the flexibility and efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a cross-sectional view of the housing of the present invention.

[0017] Figure 3 It is a schematic diagram of the separation structure of the mounting plate and the container body of the present invention.

[0018] Figure 4 It is a bottom view of the mounting plate of the present invention.

[0019] Figure 5 It is a schematic diagram of the specific structure of the fixing assembly of the present invention.

[0020] Figure 6 It is a schematic diagram of the installation of the observation mechanism of the present invention.

[0021] Figure 7 For the present invention Figure 6 A magnified view of part A.

[0022] Figure 8 The figure is a schematic diagram of the installation of the mounting rod, the air bag, the second air pump, the shunt pipe and the exhaust valve of the present invention.

[0023] Marked in the figure: 001-container body, 1-shell, 2-mounting seat, 3-placing seat, 4-first air pump, 5-connecting pipe, 6-connecting head, 7-blocking block, 8-mounting plate, 9-lifting ring, 10-exhaust pipe, 11-partition, 12-mounting block, 13-screw rod, 14-handle, 15-threaded sleeve, 16-pressing block, 17-bump, 18-control valve, 19-blocking ring, 20-first electric slide rail, 21-second electric slide rail, 22-third electric slide rail, 23-camera, 24-drive motor, 25-rotating sleeve, 26-connecting rod, 27-electric push rod, 28-marking pen, 29-mounting rod, 30-air bag, 31-second air pump, 32-diverter pipe, 33-exhaust valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment: A pressure testing device for a chemical liquid container, such as Figure 1-Figure 7 As shown, it includes a shell 1, a mounting seat 2, a placement seat 3, a first air pump 4, a connecting pipe 5, a connecting head 6, a blocking block 7, an indicating mechanism and an observation mechanism. The top of the shell 1 is an open design, an opening is opened on the upper left side of the shell 1, and the mounting seat 2 is connected to the upper left side of the shell 1. The placement seat 3 is composed of a circular plate and multiple support plates. The bottom of the shell 1 is connected to the circular plate, and the top of the circular plate is connected to multiple support plates at intervals in the circumferential direction. The extension direction of the support plate is parallel to the radial direction of the circular plate (such as Figure 2 As shown), the container body 001 can be placed on the top of the placement seat 3, and the multiple support plates of the placement seat 3 can support the container body 001, and can expose most of the bottom area of ​​the container body 001, so as to prevent the placement seat 3 from blocking the leakage part of the bottom of the container body 001, and a first air pump 4 is installed on the front side of the top of the mounting seat 2, and a connecting pipe 5 is connected to the air outlet of the first air pump 4, and a connecting head 6 is connected to the end of the connecting pipe 5 away from the first air pump 4. The structure of the connecting head 6 is similar to that of a flange, and both ends of the connecting head 6 are open-type designs. The connecting head 6 is used to connect with the interface of the container body 001 so that the connecting pipe 5 and the container body 001 can be conducted. The structure of the blocking block 7 is also similar to that of a flange, and one end of the blocking block 7 is an open-type design and the other end is a closed design. The blocking block 7 can be fixed on the interface of the container body 001 to block the interface of the container body 001, and the indicating mechanism is used to point out the leakage area of ​​the container body 001, and the observation mechanism is used to observe the leakage area of ​​the container body 001.

[0026] like Figure 2-Figure 5As shown, the indicating mechanism includes a mounting plate 8, a hanging ring 9, an exhaust pipe 10, a partition 11 and a fixing assembly. The mounting plate 8 is arranged on the upper inner side of the housing 1. The mounting plate 8 is made of a transparent material. The diameter of the mounting plate 8 is smaller than the inner diameter of the housing 1 so that the mounting plate 8 can be placed inside the housing 1. Three hanging rings 9 are connected to the top of the mounting plate 8 at intervals, and the three hanging rings 9 are distributed in a triangle. The exhaust pipe 10 is connected to the middle of the mounting plate 8. A plurality of partitions 11 are connected to the bottom of the mounting plate 8 at intervals in the circumferential direction. The extension direction of the partition 11 is parallel to the radial direction of the mounting plate 8. The plurality of partitions 11 can divide the bottom of the mounting plate 8 into a plurality of areas, and each area is connected to the lower end of the exhaust pipe 10. The fixing assembly is used to fix the position of the mounting plate 8; the fixing assembly includes a mounting block 12, a screw rod 13, and a handle 1 4. Threaded sleeves 15, pressure blocks 16 and protrusions 17. A plurality of groups of mounting blocks 12 are connected to the upper inner wall of the housing 1 at circumferential intervals. The number of mounting blocks 12 in each group is two and they are symmetrically arranged in an upper and lower manner. A screw rod 13 is rotatably connected between the two mounting blocks 12 in the same group. A handle 14 is connected to the upper end of each screw rod 13. A threaded sleeve 15 is threadedly connected to each screw rod 13. The outer wall of the threaded sleeve 15 is connected to a pressure block 16 and a protrusion 17. A control valve 18 and a retaining ring 19 are also included. The control valve 18 is installed on the exhaust pipe 10. Two retaining rings 19 are connected between the bottoms of the plurality of partitions 11. The diameters of the two retaining rings 19 are inconsistent. The retaining ring 19 with a larger diameter is located outside the retaining ring 19 with a smaller diameter, and the centers of the two retaining rings 19 are vertically aligned with the center of the mounting plate 8.

[0027] like Figure 6 and Figure 7 As shown, the observation mechanism includes a first electric slide rail 20, a second electric slide rail 21, a third electric slide rail 22, a camera 23 and a marking component. The first electric slide rail 20 is installed at the bottom of the housing 1. The first electric slide rail 20 is annular in shape and is located outside the placement seat 3. The second electric slide rail 21 is installed on the slider of the first electric slide rail 20. The shape of the second electric slide rail 21 is linear, and the extension direction of the second electric slide rail 21 coincides with the radial direction of the first electric slide rail 20. The third electric slide rail 22 is installed on the slider of the second electric slide rail 21. The camera 23 is installed on the slider of the third electric slide rail 22. The camera 23 is equipped with an external display, and the marking component is used to mark the leakage position of the container body 001; the marking component includes a driving motor 24, a rotating sleeve 25, a connecting rod 26, an electric push rod 27 and a marking pen 28. One end of the camera 23 shell is connected to the driving motor 24, and the outer side of the camera 23 shell is rotatably connected to the rotating sleeve 25. The two ends of the connecting rod 26 are respectively connected to the rotating sleeve 25 and the output shaft of the driving motor 24. The outer side of the rotating sleeve 25 is also connected to the electric push rod 27, and the telescopic rod of the electric push rod 27 is provided with a marking pen 28. It should be noted that the components of the entire observation mechanism are waterproof to ensure normal operation in water.

[0028] like Figure 8 As shown, it also includes a mounting rod 29, an air bag 30, a second air pump 31, a shunt pipe 32 and an exhaust valve 33. A plurality of mounting rods 29 are connected to the inner wall of the outer shell 1 at circumferential intervals. The side of the mounting rod 29 away from the inner wall of the outer shell 1 is connected to the air bag 30. The plurality of air bags 30 are distributed in a ring shape. The air bag 30 is filled between the inner wall of the outer shell 1 and the outer wall of the container body 001 to reduce the amount of filling water required inside the outer shell 1. A second air pump 31 is installed on the rear side of the top of the mounting seat 2. The air outlet of the second air pump 31 is connected to the shunt pipe 32, and the top of each air bag 30 is connected to the shunt pipe 32 and maintained in communication. An exhaust valve 33 is also installed on the shunt pipe 32.

[0029] First, the device is installed underground so that the top of the shell 1 is flush with the ground; initially, the pressure block 16 is in contact with the inner wall of the shell 1, the control valve 18 is in an open state, and the exhaust valve 33 is in a closed state; when it is necessary to perform a pressure test on the container body 001, first, according to the diameter of the container body 001, the second electric slide rail 21 is controlled to drive the third electric slide rail 22 to move toward or away from the center position of the placement seat 3, so as to drive the camera 23 to move to a suitable position, and then the container body 001 is placed vertically in the middle of the top of the placement seat 3 by using a crane. At this time, the distance between the end of the camera 23 and the outer wall of the container body 001 is about 10 cm, and then the connector 6 is connected to an interface on the container body 001, and through The blocking block 7 blocks the other interfaces on the container body 001; then the mounting plate 8 is moved into the outer shell 1 by cooperating with the lifting ring 9 and the crane. At this time, the mounting plate 8 is located directly above the container body 001, and then the mounting plate 8 is lowered, driving the retaining ring 19 to move downward until it contacts the outer wall of the container body 001. At this time, the retaining ring 19 and the mounting plate 8 stop moving downward. If there is an interface on the top of the container body 001, the interface can be located on the inside or outside of the retaining ring 19, which can prevent the bottom of the mounting plate 8 from squeezing the interface on the top of the container body 001. Then, the handle 14 is turned, and the handle 14 can drive the screw rod 13 to rotate, and the screw rod 13 can drive the threaded sleeve 15 to rotate, and the threaded sleeve 15 can drive the pressing block 16 and the protrusion 17 to rotate, so that the pressing block 16 is separated from the inner wall of the outer shell 1. When the block 16 rotates to the top of the mounting plate 8, the protrusion 17 just rotates to contact the inner wall of the shell 1. At this time, the threaded sleeve 15, the pressure block 16 and the protrusion 17 stop rotating, and the screw rod 13 continues to rotate to drive the threaded sleeve 15 to move downward. The threaded sleeve 15 can drive the pressure block 16 and the protrusion 17 to move downward, so that the pressure block 16 presses the top of the mounting plate 8, thereby fixing the mounting plate 8 and the container body 001; then the airbag 30 can be inflated by the second air pump 31 and the shunt pipe 32, so that the airbag 30 begins to expand. The inflation amount of the airbag 30 is proportional to the diameter of the container body 001, so that the expansion size of the airbag 30 can be controlled according to the diameter of the container body 001. The expansion of multiple airbags 30 can form an annular airbag filled in Between the inner wall of the shell 1 and the outer wall of the container body 001, the inner diameter of the annular airbag is slightly larger than the distance between the center points of the third electric slide rail 22 and the first electric slide rail 20, so as to prevent the airbag 30 from affecting the circumferential rotation of the third electric slide rail 22; then a proper amount of water can be added into the shell 1. Since the airbag 30 is filled between the inner wall of the shell 1 and the outer wall of the container body 001, the amount of water required to fill the inside of the shell 1 can be reduced, so as to save time and water resources, until the water level in the shell 1 is flush with the top of the mounting plate 8, so that the entire container body 001 is immersed in water. At this time, the air between the two adjacent partitions 11 can be discharged outward through the exhaust pipe 10, so that the area between each two adjacent partitions 11 is filled with water, and then the control valve 18 is closed;Then, through the cooperation of the first air pump 4, the connecting pipe 5 and the connecting head 6, air is injected into the container body 001 to increase the air pressure inside the container body 001. At this time, if there is no leaking part on the container body 001, no bubbles will be generated inside the shell 1. If there is a leaking part on the container body 001, bubbles will be generated at the leaking part on the container body 001. The bubbles will float straight up to be blocked by the bottom of the mounting plate 8, and the two adjacent partitions 11 can also block the bubbles, so that the bubbles can be confined to a certain area. Since the control valve 18 is in a closed state, the bubbles will not be discharged through the exhaust pipe 10. The worker can determine the area of ​​the leaking part by observing the position of the bubbles. , and then the first electric slide rail 20 drives the second electric slide rail 21 to rotate around the container body 001, which can drive the third electric slide rail 22 and the camera 23 to rotate around the container body 001, so that the camera 23 moves to the area of ​​the leaking part of the container body 001, and then the third electric slide rail 22 drives the camera 23 to reciprocate up and down once, the camera 23 can shoot the area of ​​the leaking part of the container body 001, and upload the shooting picture to the external display for people to watch, so as to confirm the specific position of the leaking part of the container body 001, when the camera 23 is aligned with the leaking part of the container body 001, the camera 23 is controlled to stop moving, and then the electric slide rail 22 is used to drive the camera 23 to move up and down once, and the camera 23 can shoot the area of ​​the leaking part of the container body 001, and upload the shooting picture to the external display for people to watch, so as to confirm the specific position of the leaking part of the container body 001. The rod 27 drives the marking pen 28 to move toward the container body 001, so that the end of the marking pen 28 can contact the outer wall of the container body 001, and then the connecting rod 26 is driven to rotate by the driving motor 24, which can drive the rotating sleeve 25, the electric push rod 27 and the marking pen 28 to rotate, and the marking pen 28 can circle the leaking part of the container body 001; after the test, stop inflating the container body 001, and then drive the marking pen 28 to move away from the container body 001 and reset through the electric push rod 27, and then open the exhaust valve 33, so that the air in the airbag 30 can be discharged through the shunt pipe 32 and the exhaust valve 33, so that the airbag 30 shrinks and recovers, and then reverses. Handle 14, handle 14 can drive screw 13 to reverse, screw 13 can drive threaded sleeve 15 to reverse, threaded sleeve 15 can drive pressing block 16 and protrusion 17 to reverse, so that protrusion 17 is separated from the inner wall of shell 1, and pressing block 16 is separated from the top of mounting plate 8, when pressing block 16 rotates to contact with the inner wall of shell 1, pressing block 16 will be away from the top of mounting plate 8, and threaded sleeve 15, pressing block 16 and protrusion 17 stop reversing, screw 13 continues to reverse and drives threaded sleeve 15 to move upward and reset, threaded sleeve 15 can drive pressing block 16 and protrusion 17 to move upward and reset, then mounting plate 8 can be taken out, then container body 001 can be taken out, and finally the water in shell 1 can be pumped out. ;

[0030] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A pressure testing device for a chemical liquid container, comprising a housing (1) and a mounting seat (2), wherein the mounting seat (2) is connected to a side of the housing (1), characterized in that: The container (001) further comprises a placement seat (3), a first air pump (4), a connecting pipe (5), a connecting head (6), a blocking block (7), an indicating mechanism and an observing mechanism. The placement seat (3) is connected to the inner bottom of the outer shell (1), and the container body (001) can be placed on the top of the placement seat (3). The first air pump (4) is installed on the top of the mounting seat (2). One end of the connecting pipe (5) is connected to the air outlet of the first air pump (4). The connecting head (6) is connected to the other end of the connecting pipe (5). The connecting head (6) is used to connect to the interface of the container body (001). The blocking block (7) is used to block the interface of the container body (001). The indicating mechanism is used to point out the leakage area of ​​the container body (001). The observing mechanism is used to observe the leakage area of ​​the container body (001).

2. A pressure testing device for a chemical liquid container as claimed in claim 1, characterized in that: The indicating mechanism comprises a mounting plate (8), a lifting ring (9), an exhaust pipe (10), a partition (11) and a fixing assembly. The mounting plate (8) is arranged inside the housing (1), the lifting ring (9) is connected to the top of the mounting plate (8) at intervals, the exhaust pipe (10) is connected to the middle of the mounting plate (8), the partition (11) is connected to the bottom of the mounting plate (8) at intervals in the circumferential direction, and the fixing assembly is used to fix the position of the mounting plate (8).

3. A pressure testing device for a chemical liquid container as claimed in claim 2, characterized in that: The fixing assembly comprises a mounting block (12), a screw rod (13), a handle (14), a threaded sleeve (15), a pressing block (16) and a convex block (17); the mounting block (12) is circumferentially symmetrically connected to the inner wall of the housing (1); the screw rod (13) is rotatably connected to the mounting block (12); the handle (14) is connected to the upper end of the screw rod (13); the threaded sleeve (15) is threadedly connected to the screw rod (13); and the pressing block (16) and the convex block (17) are both connected to the outer wall of the threaded sleeve (15).

4. A pressure testing device for a chemical liquid container as claimed in claim 3, characterized in that: The indicating mechanism also includes a control valve (18), and the control valve (18) is installed on the exhaust pipe (10).

5. A pressure testing device for a chemical liquid container as claimed in claim 4, characterized in that: The indicating mechanism also includes a retaining ring (19), and the two retaining rings (19) are both connected to the bottom of the partition plate (11).

6. A pressure testing device for a chemical liquid container as claimed in claim 5, characterized in that: The observation mechanism comprises a first electric slide rail (20), a second electric slide rail (21), a third electric slide rail (22), a camera (23) and a marking assembly. The first electric slide rail (20) is mounted on the bottom of the housing (1), the second electric slide rail (21) is mounted on a slider of the first electric slide rail (20), the third electric slide rail (22) is mounted on a slider of the second electric slide rail (21), the camera (23) is mounted on a slider of the third electric slide rail (22), and the marking assembly is used to mark the leakage position of the container body (001).

7. A pressure testing device for a chemical liquid container as claimed in claim 6, characterized in that: The marking component comprises a driving motor (24), a rotating sleeve (25), a connecting rod (26), an electric push rod (27) and a marking pen (28); the driving motor (24) is mounted on the end of a camera (23); the rotating sleeve (25) is rotatably connected to the outside of the camera (23); the connecting rod (26) connects the rotating sleeve (25) and the output shaft of the driving motor (24); the electric push rod (27) is mounted on the outside of the rotating sleeve (25); and the marking pen (28) is connected to the telescopic rod of the electric push rod (27).

8. A pressure testing device for a chemical liquid container as claimed in claim 7, characterized in that: The invention also comprises a mounting rod (29), an air bag (30), a second air pump (31), a shunt pipe (32) and an exhaust valve (33); the mounting rod (29) is connected to the inner wall of the housing (1) at circumferential intervals; the air bag (30) is connected to the side of the mounting rod (29); the second air pump (31) is installed on the top of the mounting seat (2); the shunt pipe (32) connects the air bag (30) and the air outlet of the second air pump (31); and the exhaust valve (33) is installed on the shunt pipe (32).

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