Sealing cover of pressure vessel

Abstract

The utility model discloses a pressure vessel sealing cover which comprises a cover body and a tank body matched with the cover body, the tank body is provided with an installation opening matched with the cover body, and the cover body is provided with a grip and a pressure gauge. A plurality of locking holes are correspondingly formed in the mounting opening and the cover body, and a locking mechanism is arranged between the mounting opening and the cover body; a pressure relief mechanism is arranged in the cover body and comprises a communicating opening formed in the inner side of the cover body, a cylindrical groove connected with the communicating opening in a penetrating mode, a piston installed in the cylindrical groove in a sealed and sliding mode and a discharging channel connected between the side wall of the cylindrical groove and the outer wall of the cover body; wherein the feeding end of the discharging channel is arranged on the side, close to the communicating opening, of the cylindrical groove, and the piston is connected with a driving assembly. The pressure relief device is reasonable in design and simple in structure, the pressure bearing capacity of the pressure container can be effectively improved, pressure relief can be conveniently carried out on the pressure container, and the using stability and safety of the pressure container are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure vessels, in particular to a sealing cover for a pressure vessel. Background Art

[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. Pressure vessels play an important role in many sectors such as industry, civil, military industry, and many fields of scientific research. Among them, they are most used in the chemical industry and petrochemical industry. Pressure vessels are used in the chemical and petrochemical fields.

[0003] Pressure vessels are generally provided with inspection ports. In order to ensure the sealing effect at the inspection ports, sealing covers are required to seal the inspection ports. On the one hand, existing sealing covers are difficult to ensure the sealing effect during installation. On the other hand, when the pressure in the pressure vessel is too high, they are prone to rupture and cause material leakage. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that it is difficult to ensure the sealing effect during installation and it is easy to become a rupture point causing material leakage when the pressure is too high, and proposes a sealing cover for a pressure container.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pressure vessel sealing cover comprises a cover body and a tank body matching the cover body, the tank body is provided with a mounting opening matching the cover body, and the cover body is provided with a handle and a pressure gauge;

[0007] The installation opening and the cover body are provided with a plurality of locking holes correspondingly, and a locking mechanism is provided between the installation opening and the cover body;

[0008] The cover body is provided with a pressure relief mechanism, which includes a connecting port opened on the inner side of the cover body, a cylindrical groove connected to the connecting port, a piston sealingly and slidably installed in the cylindrical groove, and a discharge channel connected between the side wall of the cylindrical groove and the outer wall of the cover body; wherein, the feed end of the discharge channel is arranged on a side of the cylindrical groove close to the connecting port, and the piston is connected to a driving assembly.

[0009] Preferably, the driving assembly includes a stud, a worm wheel coaxially fixedly connected to the stud, and a worm meshing with the worm wheel; wherein a threaded hole matching the stud is formed on a side of the piston away from the connecting port.

[0010] More preferably, the worm extends to the outside of the cover body and is connected to a hand wheel.

[0011] More preferably, the worm extends to the outside of the cover body and is connected to the output end of the motor.

[0012] Preferably, the locking mechanism is provided with a plurality of locking grooves distributed in an annular shape on the inner wall of the installation opening, a slide groove is connected between the locking groove and the outer end surface of the installation opening, and a plurality of locking blocks corresponding to the slide grooves are provided on the side wall of the cover body.

[0013] More preferably, the locking grooves are provided with multiple layers, and two adjacent layers of locking grooves are connected by sliding grooves.

[0014] More preferably, a spring piece is provided on the inner wall of the innermost locking groove corresponding to the locking block.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the utility model, the pressure relief mechanism is designed to realize manual or automatic pressure relief of the pressure vessel, so as to ensure the pressure stability of the pressure vessel and the stability and safety of the use of the pressure vessel;

[0017] 2. In the present invention, the design of the locking mechanism not only facilitates the installation and locking of the cover, but also improves the sealing effect of the cover installation location and increases the upper pressure limit of the pressure vessel.

[0018] The utility model has reasonable design and simple structure, can effectively improve the pressure bearing capacity of the pressure container, can conveniently release the pressure of the pressure container, and ensures the stability and safety of the use of the pressure container. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the appearance structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the installation port structure of the utility model.

[0021] Figure 3 It is a schematic diagram of the cover structure of the utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the pressure relief mechanism of the utility model.

[0023] In the figure: tank body 1, mounting port 11, cover body 2, handle 21, locking hole 22, pressure gauge 23, locking mechanism 3, locking groove 31, slide groove 32, locking block 33, spring piece 34, pressure relief mechanism 4, connecting port 41, cylindrical groove 42, discharge channel 421, piston 43, threaded hole 431, stud 44, worm gear 45, worm 46, handwheel 47. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-4 A pressure vessel sealing cover comprises a cover body 2 and a tank body 1 matched with the cover body 2, wherein the tank body 1 is provided with an installation opening 11 matched with the cover body 2, and the cover body 2 is provided with a handle 21 and a pressure gauge 23. The pressure state in the pressure vessel is understood through the pressure gauge 23 to ensure that the pressure in the tank body 1 is stable.

[0026] The installation opening 11 and the cover body 2 are both provided with a plurality of locking holes 22, and a locking mechanism 3 is provided between the installation opening 11 and the cover body 2. When the cover body 2 is installed, the cover body 2 is locked by the locking mechanism 3, and then the locking bolts are installed through the locking holes 22 to fix the cover body 2.

[0027] The cover body 2 is provided with a pressure relief mechanism 4, which includes a connecting port 41 opened on the inner side of the cover body 2, a cylindrical groove 42 connected to the connecting port 41, a piston 43 sealed and slidably installed in the cylindrical groove 42, and a discharge channel 421 connected between the side wall of the cylindrical groove 42 and the outer wall of the cover body 2; wherein, the feed end of the discharge channel 421 is arranged on the side of the cylindrical groove 42 close to the connecting port 41, and the piston 43 is connected to a driving component. When the pressure gauge 23 detects that the pressure in the tank body 1 is too high, the electric piston 43 of the driving component moves outward to expose the discharge channel 421, and the outer end of the discharge channel 421 can be connected to the exhaust gas treatment device to send out part of the material in the tank body 1 to reduce the pressure, thereby ensuring the stability of the pressure in the tank body 1 and ensuring the safety of the pressure vessel when in use.

[0028] Based on the above technical solution, when the sealing cover is used, the cover body 2 is installed in the installation opening 11, and the cover body 2 is initially fixed by the locking mechanism 3. After the cover body 2 is fixed and stable, the installation of the cover body 2 is completed by locking the locking bolts and the locking holes 22.

[0029] When the pressure vessel is filled with compressed gas such as liquefied gas, the pressure in the tank body 1 is monitored by the pressure gauge 23. When the pressure is too high, the drive assembly is started to drive the piston 43 to move outward to expose the discharge channel 421, so that the material is discharged through the discharge channel 421 to reduce the pressure in the tank body 1, thereby ensuring the stability of the pressure vessel during use.

[0030] In this technical solution, if Figure 4As shown, the driving assembly includes a stud 44, a worm wheel 45 coaxially fixedly connected to the stud 44, and a worm 46 meshing with the worm wheel 45; wherein, a threaded hole 431 matching the stud 44 is provided on the side of the piston 43 away from the connecting port 41. When the position of the piston 43 needs to be adjusted, the worm wheel 45 is driven to rotate by the worm 46, thereby driving the stud 44 to rotate, and the piston 43 is driven to slide in the cylindrical groove 42 through the cooperation of the threaded hole 431. In order to ensure the stable sliding of the piston 43, a structure such as a stop rod and a stop bar for preventing the piston 43 from sliding can be provided in the cylindrical groove 42 to prevent the rotation of the piston 43 from affecting its sliding effect.

[0031] Due to the self-locking effect of the worm gear mechanism, the stability of the position of the piston 43 can be effectively guaranteed, and the state of the pressure relief mechanism 4 can be guaranteed to be stable when pressure relief is not required.

[0032] In this technical solution, if Figure 3 and 4 As shown, the worm 46 extends to the outside of the cover body 2 and is connected to a hand wheel 47. The worm 46 is driven to rotate by the hand wheel 47, and the piston 43 is driven to slide through the transmission to adjust the pressure relief.

[0033] In this technical solution, if Figure 3 and 4 As shown, the worm 46 extends to the outside of the cover 2 and is connected to the output end of the motor (not shown in the figure). The motor and the pressure gauge 23 are both connected to the control system, and the pressure information monitored by the pressure gauge 23 is identified by the control system. When the pressure is too high, the motor is controlled to drive the piston 43 to slide to release the pressure, so that the pressure container has the ability to automatically release the pressure.

[0034] In this technical solution, if Figure 2-4 As shown, the locking mechanism 3 is provided with a plurality of locking grooves 31 arranged in an annular distribution on the inner wall of the installation opening 11, and a slide groove 32 is connected between the locking groove 31 and the outer end surface of the installation opening 11, and a plurality of locking blocks 33 corresponding to the slide grooves 32 are provided on the side wall of the cover body 2. When the cover body 2 is installed, the locking block 33 is aligned with the slide groove 32 and extended into the locking groove 31, and then the cover body 2 is rotated to lock the cover body 2 through the locking groove 31 and the locking block 33, so as to facilitate the locking and sealing effect of the cover body 2.

[0035] In this technical solution, if Figure 2-4As shown, the locking groove 31 is provided with multiple layers, and two adjacent layers of locking grooves 31 are connected by a slide groove 32. Through the multiple layers of locking grooves 31, the locking block 33 goes deeper layer by layer when the cover body 2 is installed, until it enters the innermost layer of locking groove 31. Through the design of the multiple layers of locking grooves 31, due to the manufacturing tolerance, when the locking block 33 goes deeper, it can effectively improve the locking effect on the cover body 2, and ensure the locking ability of the cover body 2. In order to avoid the difficulty of the locking block 33 to go deeper, the locking groove 31 is preferably provided with 2 to 3 layers.

[0036] In this technical solution, if Figure 2-4 As shown, a spring piece 34 is provided on the inner wall of the locking groove 31 located at the innermost layer corresponding to the locking block 33. The spring piece 34 improves the fixing effect of the locking block 33 and ensures the locking effect of the cover body 2.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pressure vessel sealing cover, characterized in that: It comprises a cover body (2) and a tank body (1) matching the cover body (2), the tank body (1) is provided with a mounting opening (11) matching the cover body (2), and the cover body (2) is provided with a handle (21) and a pressure gauge (23); The installation opening (11) and the cover body (2) are both provided with a plurality of locking holes (22) correspondingly, and a locking mechanism (3) is provided between the installation opening (11) and the cover body (2); The cover body (2) is provided with a pressure relief mechanism (4), which comprises a connecting port (41) provided on the inner side of the cover body (2), a cylindrical groove (42) connected to the connecting port (41), a piston (43) sealingly and slidably mounted in the cylindrical groove (42), and a discharge channel (421) connected between the side wall of the cylindrical groove (42) and the outer wall of the cover body (2); wherein a feed end of the discharge channel (421) is provided on a side of the cylindrical groove (42) close to the connecting port (41), and the piston (43) is connected to a driving assembly.

2. A pressure vessel sealing cover according to claim 1, characterized in that: The driving assembly comprises a stud (44), a worm wheel (45) coaxially fixedly connected to the stud (44), and a worm (46) meshing with the worm wheel (45); wherein a threaded hole (431) matching the stud (44) is provided on a side of the piston (43) away from the connecting port (41).

3. A pressure vessel sealing cover according to claim 2, characterized in that: The worm (46) extends to the outside of the cover body (2) and is connected to a hand wheel (47).

4. A pressure vessel sealing cover according to claim 2, characterized in that: The worm (46) extends to the outside of the cover (2) and is connected to the output end of the motor.

5. A pressure vessel sealing cover according to claim 1, characterized in that: The locking mechanism (3) is provided with a plurality of locking grooves (31) arranged in an annular pattern on the inner wall of the mounting opening (11), a slide groove (32) is connected between the locking grooves (31) and the outer end surface of the mounting opening (11), and a plurality of locking blocks (33) corresponding to the slide grooves (32) are provided on the side wall of the cover body (2).

6. A pressure vessel sealing cover according to claim 5, characterized in that: The locking grooves (31) are provided with multiple layers, and two adjacent layers of locking grooves (31) are connected via a sliding groove (32).

7. A pressure vessel sealing cover according to claim 6, characterized in that: A spring piece (34) is provided on the inner wall of the locking groove (31) located at the innermost layer, corresponding to the locking block (33).

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