Spring booster tank for mechanical sealing of reaction kettle

Abstract

The utility model discloses a spring booster tank for mechanical sealing of a reaction kettle, which relates to the field of booster tanks and comprises a chassis, a tank barrel is hermetically mounted at the top of the chassis through screws, a position indicating barrel is hermetically mounted at the top of the tank barrel through screws, and a cylinder is hermetically mounted at the top of the chassis in a threaded manner and positioned in the tank barrel. A piston is movably installed in the cylinder, a piston rod is installed on the top of the piston in a threaded mode, and the outer wall of the piston rod is fixedly sleeved with a pressing ring. The second threaded ring block is shifted to rotate to drive the first threaded ring block to rotate synchronously, so that the two threaded ring blocks move synchronously to leave the corresponding threaded grooves, the spring is disassembled, and when a new spring is installed subsequently, the first threaded ring block and the second threaded ring block are separated from each other. And the second threaded ring block is reversely twisted to enable the first threaded ring block and the second threaded ring block to be gradually matched with the threaded grooves in the corresponding positions, so that the follow-up maintenance cost of the whole device is low, and the device is environmentally friendly to use.

Description

Technical Field

[0001] This utility model relates to the field of pressure tanks, specifically to a spring-loaded pressure tank for mechanical seals of reaction vessels. Background Technology

[0002] A spring booster tank is a device that uses spring force to increase the pressure within a system. It is widely used in various industrial applications that require stable pressure output. Its main function is to maintain the pressure within the system by compressing or extending the spring when the system pressure drops, thereby ensuring the normal operation of the equipment.

[0003] A Chinese patent authorization announcement (CN210769598U) discloses a spring-loaded pressure tank for a mechanical seal of a reactor, comprising a cylinder (1), a piston (2), a piston rod (3), a tank (4), an end cap (5), a spring (6), and a positioning cylinder (7). A spring (6) and a spring pressure ring (61) are installed on the piston rod (3) outside the end cap (5). A pressure tap (14) for communication with the upper part of the reactor cavity is opened in the middle of the end plate (12) of the cylinder (1). A sealing liquid outlet (15) and a sealing liquid return (16) for communication with the outer cavity of the mechanical seal ring of the reactor are respectively opened in the upper and lower parts of the tank (4). Through the spring thrust, when the pressure inside the reactor is zero, the sealing liquid in the inner cavity of the tank (4) still maintains a certain pressure, ensuring the mechanical seal operates normally and safely under a certain positive pressure state.

[0004] The above-mentioned spring-loaded pressure tank for mechanical seal of reactor has the following problems when in use: the spring inside the spring-loaded pressure tank weakens its elastic potential energy after a long period of use, which leads to poor performance of the entire spring-loaded pressure tank for mechanical seal of reactor. Replacing the entire spring-loaded pressure tank for mechanical seal of reactor is costly.

[0005] Therefore, it is necessary to invent a spring-loaded pressure vessel for mechanical seals of reaction vessels to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a spring-loaded pressure tank for mechanical seals of reactors, in order to solve the problem mentioned in the background art that the elastic potential energy of the springs installed inside the spring-loaded pressure tank for mechanical seals of reactors weakens after a long period of use, resulting in poor performance of the entire spring-loaded pressure tank for mechanical seals of reactors, and that it is costly to replace the entire spring-loaded pressure tank for mechanical seals of reactors.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spring-loaded pressure tank for a mechanical seal of a reaction vessel, comprising a chassis, a tank being screw-sealed and mounted on the top of the chassis, and a leveling cylinder being screw-sealed and mounted on the top of the tank. A cylinder is thread-sealed and mounted on the top of the chassis, the cylinder being located inside the tank. A piston is movably mounted inside the cylinder, and a piston rod is threadedly mounted on the top of the piston. A pressure ring is fixedly sleeved on the outer wall of the piston rod, and the pressure ring is movably connected to a spring. The system also includes:

[0008] The connecting components, including the pressure ring and the bottom of the indicator barrel, are provided with threaded grooves, and the two threaded grooves are respectively threadedly connected to threaded ring block one and threaded ring block two, to ensure that the spring can be replaced later.

[0009] The linkage assembly has a long rod 1 fixedly connected to the bottom of the threaded ring block 1 and a long rod 2 fixedly connected to the top of the threaded ring block 2. The long rod 1 and the long rod 2 are movably connected to ensure that when the threaded ring block 2 is twisted, the rotation of the threaded ring block 1 is synchronously driven by the linkage action of the long rod 1 and the long rod 2.

[0010] Preferably, the outer wall of the piston rod is slidably sealed to the cylinder, and the piston rod extends through a pre-reserved hole at the top of the tank into the interior of the indicator barrel. The inner diameter of the hole is equal to the inner diameter of the threaded groove, ensuring smooth movement of the piston rod.

[0011] Preferably, the outer rings of threaded ring block one and threaded ring block two have the same thread direction, and threaded ring block two is installed in a sliding seal with the outer wall of the piston rod, so that when threaded ring block one and threaded ring block two rotate in the same direction, they can move relative to the corresponding threaded grooves.

[0012] Preferably, the first long rod and the second long rod are arranged as a set, and there are two sets in total. The two sets of the first long rod and the second long rod are symmetrically arranged on the left and right sides of the piston rod with reference to the central axis of the piston rod and do not contact the piston rod, so as to ensure that the arrangement of the long rod does not affect the movement of the piston rod.

[0013] Preferably, two limiting blocks are fixedly connected to the lower end of the first long rod on both sides, which are symmetrically arranged with reference to the central axis of the first long rod as the axis of symmetry. The outer wall of the limiting block is attached to the inner wall of the limiting groove reserved inside the first long rod to achieve a sliding connection between the upper and lower parts. The top and bottom of the limiting groove are closed to ensure the smooth movement of the first long rod and the second long rod.

[0014] Preferably, the interior of the second long rod is provided with a columnar groove, which is connected to the limiting groove. The top of the columnar groove is open, and the outer wall of the columnar groove is attached to the outer wall of the first long rod and forms a sliding connection between them, ensuring smooth movement of the first and second long rods.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This invention achieves this by rotating the second threaded ring block, which in turn drives the first threaded ring block to rotate synchronously. This causes the two threaded ring blocks to move synchronously away from their corresponding threaded grooves. Thus, when a new spring is installed after disassembly, the second threaded ring block is twisted in the opposite direction so that the first and second threaded ring blocks gradually match the corresponding threaded grooves. This results in lower maintenance costs for the entire device and makes its use more environmentally friendly. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a perspective view of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure (partially cut out) of this utility model.

[0020] Figure 3 This is a three-dimensional view of the interior of the indicator barrel of this utility model (partially cut out).

[0021] Figure 4 This is a perspective view of the overall structure of the connecting component and the linkage component of this utility model;

[0022] Figure 5 This is a three-dimensional view of the internal structure of the second long rod (partially cut out) of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Chassis; 2. Tank; 3. Indicator barrel; 4. Piston; 5. Piston rod; 6. Pressure ring; 7. Spring; 8. Connecting assembly; 801. Threaded ring block one; 802. Threaded ring block two; 803. Threaded groove; 9. Linkage assembly; 901. Long rod one; 902. Long rod two; 903. Columnar groove; 904. Limiting block; 905. Limiting groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1-5The spring-loaded pressure vessel for the mechanical seal of the reactor shown includes a chassis 1, a tank 2 sealed to the top of the chassis 1 by screws, and a level indicator 3 sealed to the top of the tank 2 by screws. A cylinder is threadedly sealed to the top of the chassis 1, located inside the tank 2. A piston 4 is movably mounted inside the cylinder, and a piston rod 5 is threadedly mounted to the top of the piston 4. A pressure ring 6 is fixedly sleeved on the outer wall of the piston rod 5, and the pressure ring 6 is movably connected to a spring 7. The vessel also includes:

[0027] The bottom of the connecting component 8, the pressure ring 6, and the position indicator 3 are all provided with threaded grooves 803, and the two threaded grooves 803 are respectively threadedly connected to threaded ring block 1 801 and threaded ring block 2 802, ensuring that the spring 7 can be replaced later.

[0028] Linkage component 9: The bottom of threaded ring block 801 is fixedly connected to long rod 901, and the top of threaded ring block 802 is fixedly connected to long rod 902. Long rod 901 and long rod 902 are movably connected to ensure that when threaded ring block 802 is twisted, the rotation of threaded ring block 801 is synchronously driven by the linkage action of long rod 901 and long rod 902.

[0029] The outer wall of the piston rod 5 is installed in a sliding seal with the cylinder, and the piston rod 5 extends through the hole reserved at the top of the tank 2 to the inside of the indicator barrel 3. The inner diameter of the hole is equal to the inner diameter of the thread groove 803, ensuring the smooth movement of the piston rod 5.

[0030] The outer rings of threaded ring block 1 801 and threaded ring block 2 802 have the same thread direction, and threaded ring block 2 802 is installed in a sliding seal with the outer wall of piston rod 5. In this way, when threaded ring block 1 801 and threaded ring block 2 802 rotate in the same direction, they can move relative to the corresponding threaded groove 803.

[0031] Long rod 1 901 and long rod 2 902 are set together in two sets. The two sets of long rod 1 901 and long rod 2 902 are symmetrically set on the left and right sides of piston rod 5 with reference to the central axis of piston rod 5 and do not contact piston rod 5, so as to ensure that the setting of long rods does not affect the movement of piston rod 5.

[0032] Two limiting blocks 904 are fixedly connected to the lower end of the two side walls of the long rod 901, which are symmetrically arranged with reference to the central axis of the long rod 901. The outer wall of the limiting block 904 is attached to the inner wall of the limiting groove 905 reserved inside the long rod 901 to achieve a sliding connection between the upper and lower parts. The top and bottom of the limiting groove 905 are closed to ensure the smooth movement of the long rod 901 and the long rod 902.

[0033] The interior of the second long rod 902 is provided with a columnar groove 903, which is connected to the limiting groove 905. The top of the columnar groove 903 is open, and the outer wall of the columnar groove 903 is attached to the outer wall of the first long rod 901 and is connected to slide up and down to ensure the smooth movement of the first long rod 901 and the second long rod 902.

[0034] Working principle: When using the spring-loaded pressure tank with mechanical seal of the reactor, firstly, when it is necessary to replace the spring 7, twist the screw to separate the chassis 1, tank 2, indicator tank 3, and cylinder that are sealed by the screw. At the same time, twist the piston 4 to separate the piston 4 from the piston rod 5. At this time, the threaded ring block 802 can be rotated through the threaded groove 803. The threaded ring block 802 is threadedly connected to the bottom 3 of the indicator tank. Thus, when the threaded ring block 802 is rotated, it will move synchronously. During the rotation of the threaded ring block 802, the threaded ring block 801, which is linked to the threaded ring block 802 through two movable long rods, will rotate synchronously. The threaded ring block 801 is threadedly connected to the pressure ring 6. When the threaded ring block 802 rotates and moves downward away from the corresponding threaded groove 803, the threaded ring block 801 rotates and moves away from the pressure ring 6 simultaneously. When the threaded ring block 801 reaches the threaded groove 803 reserved inside the indicator barrel 3 during its downward movement, the threaded ring block 802 is continuously twisted, causing the threaded ring block 801 to rotate away from the threaded groove 803. In this way, the spring 7 connected between the threaded ring block 801 and the threaded ring block 802 is disassembled. When installing the new spring 7, the threaded ring block 802 is twisted in the opposite direction so that the threaded ring block 801 and the threaded ring block 802 gradually match the corresponding threaded groove 803.

[0035] Meanwhile, since threaded ring block 1 801 and threaded ring block 2 802 are connected by long rod 1 901 and long rod 2 902, there is no impact on the subsequent movement of piston 4 and piston rod 5 (the operating principle of the spring booster tank is an existing and relatively mature technology, which will not be elaborated here).

[0036] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A spring-loaded pressure vessel for mechanical seal of a reactor, comprising a chassis (1), characterized in that, The top of the chassis (1) is sealed with a tank (2) by screws, and the top of the tank (2) is sealed with a positioning tank (3) by screws. The top of the chassis (1) is threaded with a cylinder, which is located inside the tank (2). A piston (4) is movably installed inside the cylinder, and a piston rod (5) is threaded on the top of the piston (4). A pressure ring (6) is fixedly sleeved on the outer wall of the piston rod (5). The pressure ring (6) is movably connected to a spring (7). The chassis (1) also includes: The bottom of the connecting component (8), the pressure ring (6) and the indicator barrel (3) are provided with threaded grooves (803), and the two threaded grooves (803) are respectively threadedly connected to threaded ring block one (801) and threaded ring block two (802); The linkage component (9) has a long rod (901) fixedly connected to the bottom of the threaded ring block (801) and a long rod (902) fixedly connected to the top of the threaded ring block (802), and the long rod (901) and the long rod (902) are movably connected.

2. The spring-loaded pressure vessel for mechanical seal of a reactor according to claim 1, characterized in that, The piston rod (5) has a sliding seal between its outer wall and the cylinder, and the piston rod (5) extends through the hole reserved at the top of the tank (2) to the inside of the indicator barrel (3). The inner diameter of the hole is equal to the inner diameter of the thread groove (803).

3. The spring-loaded pressure vessel for mechanical seal of a reactor according to claim 1, characterized in that, The outer rings of the threaded ring block one (801) and the threaded ring block two (802) have the same thread direction, and the threaded ring block two (802) and the outer wall of the piston rod (5) are in a sliding seal installation.

4. The spring-loaded pressure vessel for mechanical seal of a reactor according to claim 1, characterized in that, The first long rod (901) and the second long rod (902) are set together in two sets. The two sets of the first long rod (901) and the second long rod (902) are symmetrically arranged on the left and right sides of the piston rod (5) with reference to the central axis of the piston rod (5) and do not contact the piston rod (5).

5. The spring-loaded pressure vessel for mechanical seal of a reactor according to claim 1, characterized in that, Two limiting blocks (904) are fixedly connected to the two side walls of the lower end of the long rod (901) and are symmetrically arranged with reference to the central axis of the long rod (901). The outer wall of the limiting block (904) is attached to the inner wall of the limiting groove (905) reserved inside the long rod (901) to achieve a sliding connection between the upper and lower parts. The top and bottom of the limiting groove (905) are closed.

6. The spring-loaded pressure vessel for mechanical seal of a reactor according to claim 1, characterized in that, The interior of the second long rod (902) is provided with a columnar groove (903), which is connected to the limiting groove (905). The top of the columnar groove (903) is open, and the outer wall of the columnar groove (903) is attached to the outer wall of the first long rod (901) and forms a sliding connection between them.

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