Ship stern axial sealing pressure test device

Abstract

The utility model discloses a ship stern axial sealing pressure test device, and relates to the technical field of sealing pressure test, the ship stern axial sealing pressure test device is provided with a sealing equipment placing plate, a ship stern simulation shaft, an electric push rod and a clamping plate, the electric push rod pushes the clamping plate to move towards the inner side; the ship stern axial sealing device can be firmly fixed on the ship stern simulation shaft of the sealing equipment placing plate, so that the actual installation position of the ship stern axial sealing device is simulated, and the sealing placing box, the vacuumizing pump, the air leakage detection pipe, the pressure test barrel and the pressure sensor are arranged; after the ship stern axial sealing device is installed, air in the sealing placement box can be evacuated, when air leaks between the ship stern axial sealing device and the ship stern simulation shaft, the air can flow into the pressure test barrel through the air leakage detection pipe, at the moment, the pressure sensor at the top of the pressure test barrel can sense the air flow pressure, and the air leakage is detected. Therefore, the sealing performance of the device is detected, and the detection is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing pressure testing, in particular to a ship stern axial sealing pressure testing device. Background Art

[0002] At present, the ship's stern axial sealing device is often installed at both ends of the ship's stern shaft, one end is connected to the propeller, and the other end is connected to the engine. Therefore, the ship's stern axial sealing device is needed to seal the connection between the ship's stern shaft and the equipment to prevent the oil and water in the stern shaft from leaking out. Therefore, before the ship's stern axial sealing device is installed, a pressure test device is needed to detect its sealing performance to ensure that the ship's stern axial sealing device can seal the stern shaft.

[0003] For example, the utility model with patent number CN201520395675.0 discloses a ship stern shaft sealing pressure test device, including a first pressure plate, a second pressure plate and a pressure gauge; the first pressure plate and the second pressure plate are respectively arranged at the head and tail ends of the existing ship stern shaft sealing device; the second pressure plate is provided with a first water inlet corresponding to the oil chamber cavity; in addition, a second water inlet is opened on the sealing ring of the ship stern shaft sealing device; the first water inlet and the second water inlet are respectively connected to the external water pump; the pressure gauge is respectively connected to the oil chamber cavity and the sealing cavity, and detects the water pressure before and after the water is injected into the cavity to determine the sealing performance of the sealing ring. The utility model injects water into the cavity formed by each sealing ring of the assembled ship stern shaft sealing device, and detects the pressure in the cavity in real time through the pressure gauge to observe the sealing condition of each sealing ring. Compared with the prior art, the sealing effect of the sealing ring can be intuitively seen through the pressure gauge, and the detection is more reliable;

[0004] The pressure test device in this patent cannot detect the equipment before installation and can only make a judgment after installation. If it fails, it needs to be disassembled again and replaced with a new one, which greatly increases the difficulty of detection. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a ship stern axial seal pressure test device, which solves the problem that the device cannot be tested on the equipment before installation.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a ship stern axial sealing pressure test device, comprising a supporting base, a sealing placement box is fixedly installed on the upper surface of the supporting base, an electric control box is fixedly installed on the outside of the sealing placement box, a fixing frame is arranged on the outside of the sealing placement box, a vacuum pump is fixedly installed on the upper end of the fixing frame, exhaust pipes are fixedly connected to both sides of the sealing placement box, a connecting pipe is fixedly connected between the exhaust pipe and the vacuum pump, an exhaust pipe is arranged on the other side of the vacuum pump, a pressure test barrel is fixedly installed on the fixing frame, a pressure sensor is fixedly installed on the top of the pressure test barrel, a leakage detection tube is fixedly installed between the pressure test barrel and the sealing placement box, a pressure gauge is arranged on the leakage detection tube, a sealing device placement plate is arranged inside the sealing placement box, a placement groove is opened on the surface of the sealing device placement plate, a ship stern simulation shaft is detachably installed on the placement groove, electric push rods are arranged on both sides of the placement groove, and a splint is fixedly installed on the movable end of the electric push rod.

[0007] Preferably, the splints are symmetrically distributed, and the surfaces of the splints are provided with evenly distributed anti-slip patterns.

[0008] Preferably, sealing sleeves are fixedly installed on both sides of the sealing placement box, and the exhaust pipe extends to the inside of the sealing sleeve.

[0009] Preferably, a sealed door is installed on the sealed storage box via a hinge, and a handle is fixedly installed on the outside of the sealed door.

[0010] Preferably, a first guide rail is provided at the bottom of the sealed placement box, a second guide rail is provided on the other side of the first guide rail, and sealing blocks are fixedly installed at the ends of the first guide rail and the second guide rail.

[0011] Furthermore, the sealing block is attached to the surface of the sealing placement box, and a handle is fixedly installed on the outside of the sealing block.

[0012] Beneficial Effects

[0013] The utility model provides a ship stern axial seal pressure test device. Compared with the prior art, it has the following advantages:

[0014] Beneficial effects:

[0015] The ship stern axial sealing pressure test device is provided with a sealing device placement plate, a ship stern simulated shaft, an electric push rod and a clamping plate. The electric push rod pushes the clamping plate to move inward, so that the ship stern axial sealing device can be firmly fixed on the ship stern simulated shaft of the sealing device placement plate, thereby simulating the actual installation position of the ship stern axial sealing device. By providing a sealing placement box, a vacuum pump, an air leakage detection tube, a pressure test barrel and a pressure sensor, the air in the sealing placement box can be evacuated after the ship stern axial sealing device is installed. When there is air leakage between the ship stern axial sealing device and the ship stern simulated shaft, the air will flow into the pressure test barrel through the air leakage detection tube. At this time, the pressure sensor on the top of the pressure test barrel will feel the airflow pressure, thereby detecting the sealing of the device. The sealing pressure test can be performed before the equipment is installed, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a structural schematic diagram of the sealed placement box in the utility model;

[0018] Figure 3 It is a structural schematic diagram of a sealing device placement plate in the utility model.

[0019] In the figure: 1. Support base; 2. Fixed frame; 3. Vacuum pump; 4. Connecting pipe; 5. Exhaust pipe; 6. Pressure test barrel; 7. Pressure sensor; 8. Leakage detection tube; 9. Pressure gauge; 10. Sealing placement box; 11. Electric control box; 12. Sealing door; 13. Handle; 14. Sealing sleeve; 15. Second guide rail; 16. Sealing block; 17. Sealing equipment placement plate; 18. Placement groove; 19. Electric push rod; 20. Clamp; 21. Ship stern simulation shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3The utility model provides a technical solution: a ship stern axial sealing pressure test device, comprising a support base 1, a sealing placement box 10 is fixedly installed on the upper surface of the support base 1, an electric control box 11 is fixedly installed on the outside of the sealing placement box 10, a fixing frame 2 is arranged on the outside of the sealing placement box 10, a vacuum pump 3 is fixedly installed on the upper end of the fixing frame 2, an exhaust pipe 5 is fixedly connected to both sides of the sealing placement box 10, a connecting pipe 4 is fixedly connected between the exhaust pipe 5 and the vacuum pump 3, an exhaust pipe is arranged on the other side of the vacuum pump 3, and the vacuum pump 3 can evacuate the air in the sealing placement box 10 after the ship stern axial sealing device is installed, a pressure test barrel 6 is fixedly installed on the fixing frame 2, and the top of the pressure test barrel 6 is fixed A pressure sensor 7 is fixedly installed, a leakage detection tube 8 is fixedly installed between the pressure test barrel 6 and the sealing placement box 10, and a pressure gauge 9 is arranged on the leakage detection tube 8. A sealing device placement plate 17 is arranged inside the sealing placement box 10, and a placement groove 18 is opened on the surface of the sealing device placement plate 17. A ship stern simulation shaft 21 is detachably installed on the placement groove 18, and electric push rods 19 are arranged on both sides of the placement groove 18. A clamping plate 20 is fixedly installed on the movable end of the electric push rod 19. The electric push rod 19 pushes the clamping plate 20 to move inward, so that the ship stern axial sealing device can be firmly fixed on the ship stern simulation shaft 21 of the sealing device placement plate 17, thereby simulating the actual installation position of the ship stern axial sealing device.

[0022] The splints 20 are symmetrically distributed, and the surface of the splints 20 is provided with evenly distributed anti-slip patterns. Sealing sleeves 14 are fixedly installed on both sides of the sealed placement box 10, and the exhaust pipe 5 extends to the inside of the sealing sleeve 14. A sealed door 12 is installed on the sealed placement box 10 through a hinge, and a handle 13 is fixedly installed on the outside of the sealed door 12. A first guide rail is provided at the bottom of the sealed placement box 10, and a second guide rail 15 is provided on the other side of the first guide rail. Sealing blocks 16 are fixedly installed at the ends of the first guide rail and the second guide rail 15, and the sealing blocks 16 are attached to the surface of the sealed placement box 10, and a handle is fixedly installed on the outside of the sealing block 16. After opening the sealed door 12, the first guide rail and the second guide rail 15 can be pulled out by pulling the handle, so that the sealed device placement plate 17 on the first guide rail and the second guide rail 15 can be moved out of the sealed placement box 10, so that the equipment can be placed on the sealed device placement plate 17 conveniently.

[0023] During operation, the sealing door 12 is opened first, and then the sealing device placement plate 17 is pulled out, and then the sealing devices to be installed at both ends of the stern shaft are installed on the outside of the ship's stern simulation shaft 21, and the electric push rod 19 is opened. The electric push rod 19 pushes the clamping plate 20 to move inward, thereby firmly fixing the sealing device. By setting the sealing placement box 10, the vacuum pump 3, the leakage detection tube 8, the pressure test barrel 6 and the pressure sensor 7, the air in the sealing placement box 10 can be evacuated after the ship's stern axial sealing device is installed. When there is air leakage between the ship's stern axial sealing device and the ship's stern simulation shaft 21, the air will flow into the pressure test barrel 6 through the leakage detection tube 8. At this time, the pressure sensor 7 on the top of the pressure test barrel 6 will feel the airflow pressure, thereby detecting the sealing of the device. The sealing pressure test can be carried out before the equipment is installed, which is more convenient.

[0024] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A ship stern axial seal pressure test device, comprising a support base (1), characterized in that: A sealed placement box (10) is fixedly installed on the upper surface of the support base (1), an electric control box (11) is fixedly installed outside the sealed placement box (10), a fixed frame (2) is arranged outside the sealed placement box (10), a vacuum pump (3) is fixedly installed on the upper end of the fixed frame (2), an exhaust pipe (5) is fixedly connected to both sides of the sealed placement box (10), a connecting pipe (4) is fixedly connected between the exhaust pipe (5) and the vacuum pump (3), an exhaust pipe is arranged on the other side of the vacuum pump (3), a pressure test barrel (6) is fixedly installed on the fixed frame (2), and the pressure test barrel (6) A pressure sensor (7) is fixedly installed on the top, a gas leakage detection tube (8) is fixedly installed between the pressure test barrel (6) and the sealing placement box (10), a pressure gauge (9) is arranged on the gas leakage detection tube (8), a sealing device placement plate (17) is arranged inside the sealing placement box (10), a placement groove (18) is opened on the surface of the sealing device placement plate (17), a ship stern simulation shaft (21) is detachably installed on the placement groove (18), electric push rods (19) are arranged on both sides of the placement groove (18), and a clamping plate (20) is fixedly installed on the movable end of the electric push rod (19).

2. A ship stern axial seal pressure test device according to claim 1, characterized in that: The clamping plates (20) are symmetrically distributed, and the surface of the clamping plates (20) is provided with evenly distributed anti-slip patterns.

3. A ship stern axial seal pressure test device according to claim 1, characterized in that: Sealing sleeves (14) are fixedly mounted on both sides of the sealing placement box (10), and the air extraction pipe (5) extends to the inside of the sealing sleeve (14).

4. A ship stern axial seal pressure test device according to claim 1, characterized in that: A sealed door (12) is installed on the sealed storage box (10) via a hinge, and a handle (13) is fixedly installed on the outside of the sealed door (12).

5. A ship stern axial seal pressure test device according to claim 1, characterized in that: The sealing placement box (10) is provided with a first guide rail at the bottom, a second guide rail (15) is provided on the other side of the first guide rail, and sealing blocks (16) are fixedly mounted at the ends of the first guide rail and the second guide rail (15).

6. A ship stern axial seal pressure test device according to claim 5, characterized in that: The sealing block (16) is attached to the surface of the sealing placement box (10), and a handle is fixedly installed on the outside of the sealing block (16).

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