A high pressure vessel through hole sealing device

Abstract

The utility model discloses a kind of high-pressure vessel through-hole sealing devices, including the sealing cylinder detachably connected with high-pressure vessel, the sealing cylinder is hollow cylinder, for the measurement line in high-pressure vessel is led out, sealing assembly is provided in the sealing cylinder inner wall for binding and compacting the measurement line, sealing nut is further provided at the top of the sealing cylinder, the sealing nut is threadedly connected with sealing cylinder, through the composite sealing structure of double-layer rubber ring and sealing nut, solve the sealing problem that multiple different-diameter measurement lines are led out from high-pressure vessel.The device utilizes the radial tightening effect of rubber ring and the axial pressure effect of sealing nut, realizes hierarchical sealing;And through winding sealing material self-adapting different line diameter.It has the advantages of simple structure, reliable sealing, strong adaptability, etc., effectively guarantee the accuracy of experimental data and operation safety under high-pressure environment.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure environment measurement technology, and in particular to a sealing device for the through hole of a high-pressure vessel. Background Technology

[0002] In high-pressure related scientific research or production processes, it is often necessary to perform in-situ measurements of the physical or chemical parameters of materials under high-pressure environments. Sensors are placed directly in the high-pressure environment, and signals are transmitted to measuring equipment outside the high-pressure vessel via measuring leads. If the seal is not tight, it will lead to instability in the internal pressure of the pressure vessel, resulting in energy waste and safety hazards. These problems affect the reliability of the test results. In severe cases, it may even threaten the safety of operators. Therefore, a specialized through-hole sealing device is necessary to achieve this process. How to lead multiple measuring lines of different diameters out from inside the high-pressure vessel while ensuring safety, simplicity, and effectiveness, and improving the adaptability of the sealing device, is a key technical challenge in the structural design of through-hole sealing devices. Utility Model Content

[0003] This utility model patent aims to address the shortcomings of the prior art by providing a high-pressure vessel through-hole sealing device. This device solves the technical problems of existing high-pressure sealing devices being unable to effectively seal multiple measuring lines of different diameters simultaneously, being prone to leakage under high pressure, and having poor adaptability.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a high-pressure vessel through-hole sealing device, including a sealing cylinder detachably connected to the high-pressure vessel, the sealing cylinder being a hollow cylinder for leading out the measuring line in the high-pressure vessel, the inner wall of the sealing cylinder being provided with a sealing component for binding and pressing the measuring line, and the top of the sealing cylinder being provided with a sealing nut, the sealing nut being threadedly connected to the sealing cylinder.

[0005] Preferably, the sealing assembly includes a first rubber ring and a second rubber ring arranged in sequence, and an annular groove is provided on the inner wall of the sealing cylinder. The first rubber ring is disposed in the groove on the inner wall of the sealing cylinder for preliminary positioning and tightening of the measuring line.

[0006] Preferably, the second rubber ring is disposed between the first rubber ring and the sealing nut, and the second rubber ring undergoes radial deformation under the axial pressure of the sealing nut to tightly wrap the measuring line.

[0007] Preferably, the sealing cylinder is made of metal.

[0008] Preferably, the contact surfaces of the first rubber ring and the second rubber ring are provided with mutually cooperating protrusions and grooves to achieve alignment and connection between the two.

[0009] Preferably, a rubber pad is provided at the bottom of the sealing cylinder to achieve a static seal between the sealing cylinder and the high-pressure vessel.

[0010] Preferably, both ends of the sealing cylinder are provided with external threads, and the two ends of the sealing cylinder are respectively threadedly connected to the high-pressure vessel and the sealing nut.

[0011] Preferably, the outer surface of the measuring line may be wrapped with a sealing material to increase the diameter of the measuring line and enhance the contact sealing effect with the sealing assembly.

[0012] Preferably, the sealing material is waterproof tape.

[0013] Preferably, the sealing assembly is made of an elastic rubber material.

[0014] The beneficial effects of this utility model are: This invention provides a sealing device for the through-hole of a high-pressure vessel. Through a composite sealing structure of a double-layer rubber ring and a sealing nut, it solves the sealing problem of multiple measuring wires with different diameters leading from the high-pressure vessel. The device utilizes the radial tightening effect of the rubber ring and the axial pressure of the sealing nut to achieve graded sealing; and it adapts to different wire diameters by winding sealing material. It has advantages such as simple structure, reliable sealing, and strong adaptability, effectively ensuring the accuracy of experimental data and operational safety under high-pressure environments. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 Overall sectional view of the through-hole sealing device; Figure 2 Sectional and top views of the sealing nut; Figure 3 Sectional view and top view of the sealing cylinder; Figure 4 First cross-sectional view and top view of the rubber ring; Figure 5 Second rubber ring sectional view and top view; In the diagram: 1. High-pressure vessel; 2. Rubber gasket; 3. Sealing cylinder; 4. First rubber ring; 5. Second rubber ring; 6. Sealing nut; 7. External thread; 8. Protrusion; 9. Interface. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1-5As shown, a high-pressure vessel through-hole sealing device includes a sealing cylinder 3 detachably connected to the high-pressure vessel. The sealing cylinder 3 is a hollow cylinder used to lead out the measuring wires from the high-pressure vessel. The inner wall of the sealing cylinder 3 is provided with a sealing component for binding and pressing the measuring wires. A sealing nut 6 is also provided at the top of the sealing cylinder 3, and the sealing nut 6 is threadedly connected to the sealing cylinder 3. In this embodiment, the sealing cylinder 3 is a hollow cylinder structure, which aims to form the main channel for the measuring wires to be led out from the inside of the high-pressure vessel. The sealing cylinder 3 not only plays a connecting and supporting role, but its inner wall is also provided with a special sealing component installation structure for effectively sealing multiple measuring wires. The sealing cylinder can be made of stainless steel and can withstand extremely high internal pressure.

[0019] Preferably, the sealing assembly includes a first rubber ring 4 and a second rubber ring 5 arranged sequentially. The inner wall of the sealing cylinder 3 has an annular groove. The first rubber ring 4 is disposed in the groove on the inner wall of the sealing cylinder 3 and is used for preliminary positioning and tightening of the measuring wire. In this embodiment, the layered sealing design makes the sealing process more stable and reliable, avoiding the stress concentration problem that may occur with single-layer sealing. The first rubber ring 4 mainly plays a supporting and positioning role as well as tightening the wire bundle; the second rubber ring 5 mainly plays a role in strengthening the seal.

[0020] Preferably, the second rubber ring 5 is disposed between the first rubber ring 4 and the sealing nut 6. Under the axial pressure of the sealing nut 6, the second rubber ring 5 undergoes radial deformation to tightly wrap the measuring wire. The unique feature of this embodiment is its ability to produce significant radial deformation under the axial pressure of the sealing nut 6, thereby tightly wrapping measuring wires of different diameters. This deformation mechanism allows the device to adapt to the sealing requirements of different wire diameter combinations, greatly improving the versatility of the device. Figure 5 As shown, the cross-sectional shape of the second rubber ring 5 is specially designed, with a thicker lower part and a thinner upper part. This gradual thickness design allows for more uniform radial deformation when under pressure.

[0021] Preferably, the sealing cylinder 3 is made of metal. In this embodiment, the sealing cylinder 3 is preferably made of stainless steel, but it can also be made of alloy metal with strong corrosion resistance, such as nickel-based alloy or titanium alloy.

[0022] Preferably, the contact surfaces of the first rubber ring 4 and the second rubber ring 5 are provided with mutually cooperating protrusions 8 and interfaces 9 to achieve alignment and connection between the two. This complementary positioning structure described in this application not only achieves accurate alignment between the two rubber rings, but also prevents relative displacement that may occur during installation and use, ensuring the stability and reliability of the sealing system. The fit between the protrusions and the interfaces adopts an interference fit, which can ensure both smooth installation and stability during operation. As shown in Figures 1, 4, and 5, the protrusion 8 and interface 9 structure can be simply described as a butt joint structure. The top of the first rubber ring 4 is provided with a protrusion 8 (or can be understood as narrowing inward), and the bottom of the second rubber ring 5 is provided with an interface 9 that mates with the top protrusion 8 of the first rubber ring 4. In use, the bottom of the second rubber ring 5 and the top of the first rubber ring 4 cooperate to achieve an interference fit.

[0023] Preferably, a rubber gasket 2 is provided at the bottom of the sealing cylinder 3 to achieve a static seal between the sealing cylinder 3 and the high-pressure vessel 1. In this embodiment, the rubber gasket 2 is made of a high-pressure resistant and corrosion-resistant elastic material to achieve a static seal at the connection between the sealing cylinder 3 and the high-pressure vessel 1, effectively preventing the possibility of medium leakage at the interface.

[0024] Preferably, both ends of the sealing cylinder 3 are provided with external threads 7, which are threadedly connected to the high-pressure container 1 and the sealing nut 6 respectively. In this embodiment, the sealing cylinder 3 is connected to the high-pressure container 1 and the sealing nut 6 through the external threads 7. This fully threaded connection design makes the installation and disassembly of the entire device more convenient, while ensuring the mechanical strength and sealing reliability of each connection part.

[0025] Preferably, the outer surface of the measuring wire may be wrapped with a sealing material to increase the diameter of the measuring wire and enhance the contact sealing effect with the sealing assembly. In this embodiment, the outer surface of the measuring wire may be wrapped with a sealing material during use. This measure can both appropriately increase the effective diameter of the measuring wire and enhance the contact sealing effect between the measuring wire and the sealing assembly, especially for measuring wires with smaller diameters, it can significantly improve their sealing performance.

[0026] Preferably, the sealing material is waterproof tape.

[0027] Preferably, the sealing assembly is made of an elastic rubber material.

[0028] The specific principle and usage of this application are as follows: The main sealing cylinder is fixed to the high-pressure vessel by threads. Then, the measuring wire is led out through the sealing cylinder and wrapped with sealing material (such as waterproof tape) to thicken its diameter. Subsequently, the thickened measuring wire is placed sequentially into the double-layer rubber ring, aligning the rubber ring 1 with the groove on the upper part of the sealing cylinder. Next, the sealing nut is fitted onto the main body of the sealing cylinder, and the sealing wire is further sealed and fixed using bolts. At the connection between the high-pressure vessel and the sealing cylinder, the thickened measuring wire is wrapped with waterproof tape to prevent the sealing material from being ejected due to excessive internal pressure in the high-pressure vessel. This invention is applicable to multiple measuring wires of varying diameters, has a simple structure, and can be adjusted at any time according to different pressure vessel specifications or the number of measuring wires, exhibiting strong applicability. Before testing, the internal diameter and external thread specifications of the sealing cylinder can be estimated based on the number and size of the measuring wires and the specifications of the pressure vessel's threaded holes. Furthermore, the sealing material can also be adjusted randomly as needed.

[0029] Step 1 for use: Secure the main sealing cylinder to the high-pressure vessel using threads, ensuring a secure connection and no air leakage.

[0030] Step 2: Lead the measuring line out through the sealing tube and wrap the measuring line with sealing material (such as waterproof tape) to thicken its diameter so that it fits better with the rubber ring.

[0031] Step 3: Insert the thickened measuring line into the double-layer rubber rings one by one. Align rubber ring 1 with the groove at the top of the sealing cylinder, ensuring that the rubber ring fits tightly against the measuring line and the inner wall of the sealing cylinder.

[0032] Step 4: Place the sealing nut onto the main body of the sealing cylinder, and further seal and fix the sealing line with the bolts to ensure that the measuring line will not loosen or leak due to pressure changes.

[0033] Step 5: Wrap the thickened measuring line with waterproof tape at the connection between the high-pressure vessel and the sealing cylinder. This step is to prevent the sealing material from being blown out due to excessive internal pressure in the high-pressure vessel, thus further enhancing the sealing performance.

[0034] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A sealing device for a through-hole of a high-pressure vessel, characterized in that, The device includes a sealing cylinder (3) detachably connected to a high-pressure container (1). The sealing cylinder (3) is a hollow cylinder used to lead out the measuring line from the high-pressure container (1). The inner wall of the sealing cylinder (3) is provided with a sealing component for binding and pressing the measuring line. The top of the sealing cylinder (3) is also provided with a sealing nut (6). The sealing nut (6) is threadedly connected to the sealing cylinder (3). The sealing component includes a first rubber ring (4) and a second rubber ring (5) arranged in sequence. The inner wall of the sealing cylinder (3) is provided with an annular groove. The first rubber ring (4) is set in the groove of the inner wall of the sealing cylinder (3) for preliminary positioning and tightening of the measuring line. The second rubber ring (5) is set between the first rubber ring (4) and the sealing nut (6). The second rubber ring (5) undergoes radial deformation under the axial pressure of the sealing nut (6) to tightly wrap the measuring line.

2. The high-pressure vessel through-hole sealing device according to claim 1, characterized in that: The sealing cylinder (3) is made of metal.

3. The high-pressure vessel through-hole sealing device according to claim 2, characterized in that: The first rubber ring (4) and the second rubber ring (5) have mutually cooperating protrusions (8) and interface (9) structures on their contact surfaces to achieve alignment and connection between the two.

4. The high-pressure vessel through-hole sealing device according to claim 1, characterized in that: A rubber pad (2) is provided at the bottom of the sealing cylinder (3) to achieve static sealing between the sealing cylinder (3) and the high-pressure vessel (1).

5. A high-pressure vessel through-hole sealing device according to claim 1, characterized in that: Both ends of the sealing cylinder (3) are provided with external threads (7), and both ends of the sealing cylinder (3) are threadedly connected to the high pressure vessel (1) and the sealing nut (6) respectively.

6. A high-pressure vessel through-hole sealing device according to claim 1, characterized in that: The outer surface of the measuring line may be wrapped with a sealing material to increase the diameter of the measuring line and enhance the contact sealing effect with the sealing component.

7. A high-pressure vessel through-hole sealing device according to claim 6, characterized in that: The sealing material is waterproof tape.

8. A high-pressure vessel through-hole sealing device according to claim 1, characterized in that: The sealing assembly is made of elastic rubber material.

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