A wall penetration device capable of sealing

Abstract

The present application relates to the field of joint sealing, and aims to provide a wall joint device capable of realizing sealing function. The device comprises a main body member, a pressing cap, a sleeve, a metal distributor and a non-metal distributor. The main body member is a tubular hollow structure, and the inside is a continuous arrangement of three sections of through holes with different inner diameters arranged in order from large to small to form two step structures; the sleeve is installed in the largest inner diameter through hole of the main body member and can displace axially relative to the main body member; the metal distributor is installed in the through hole with larger inner diameter of the sleeve, and the non-metal distributor is installed in the middle through hole inside the main body member. Through the cooperation of various components, the metal distributor is used to compress the non-metal distributor and make the outer surface and axial through hole of the non-metal distributor deform, so as to realize sealing. Therefore, it has reliable high-pressure sealing, high pressure-bearing capacity, is suitable for various sensors, has simple structure and is convenient to use; it is convenient to disassemble and replace, has good sealing performance and pressure resistance.

Description

Technical Field

[0001] This invention belongs to the field of joint sealing, and specifically relates to a through-wall joint device that can achieve a sealing function. Background Technology

[0002] With the development of high-pressure storage and transportation technology, gases such as natural gas, hydrogen, and oxygen, and liquids such as oil and water need to be transported long distances from their production sites via high-pressure pipelines, and then stored in high-pressure storage tanks at urban sites. During the operation of these high-pressure equipment, various parameters of the medium inside the equipment, such as temperature, pressure, and flow rate, need to be monitored by corresponding sensors. The signals monitored by these sensors are transmitted through the walls of the equipment via wires, pipes, cables, probes, etc., for engineers to analyze and monitor in real time. To ensure the safe operation of high-pressure equipment, the sealing effect of the through-wall joint device is particularly important to meet the application requirements of the high-pressure equipment.

[0003] While there have been significant achievements in the development and research of connector devices both domestically and internationally, research on through-wall connector devices with sealing functions is still relatively limited. Currently, most connector devices face the following technical shortcomings: complex structure, difficult to disassemble and replace; and installation gaps exist between the connector device itself and through-wall devices such as signal lines, cables, pipelines, and probes, which cannot meet the requirements for structural pressure resistance and sealing.

[0004] Therefore, it is necessary to propose improvement plans for the above-mentioned problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a through-wall joint device that can achieve a sealing function.

[0006] To solve the technical problem, the solution of the present invention is:

[0007] A through-wall joint device capable of achieving a sealing function is provided. The device includes: a main component, a pressure cap, a sleeve, a metal distributor, a non-metallic distributor, and a pin.

[0008] The main component is a tubular hollow structure with a hexagonal nut-shaped protrusion in the middle of its outer surface. External threads are provided on the outer surface of the main component on both sides of the protrusion. The interior of the main component consists of three continuously arranged through holes with different inner diameters, arranged in descending order to form two stepped structures. An axial keyway is provided on the inner wall of the through hole with the largest inner diameter.

[0009] The sleeve is a hollow cylinder with two continuously arranged through holes inside, each with a different inner diameter forming a stepped structure. An axial keyway is provided on the outer surface of the through hole with the smaller inner diameter. The sleeve is installed in the through hole with the largest inner diameter of the main component, and its length is slightly greater than the axial dimension of that through hole. The keyway of the sleeve is arranged opposite to the keyway of the main component. The pin is inserted into the cavity formed by the two keyways to restrict the relative rotation between the sleeve and the main component. There is a clearance fit between the sleeve and the main component, and between the keyway of the sleeve and the pin. The sleeve can be displaced axially relative to the main component.

[0010] The metal distributor is installed in a through hole with a larger inner diameter in the sleeve, and its length is slightly larger than the axial dimension of the through hole; the non-metallic distributor is installed in a middle through hole inside the main body component, and the inner diameter of the metal distributor is slightly smaller than that of the non-metallic distributor; axial through holes are provided in the metal distributor and the non-metallic distributor respectively, and the two through holes are arranged opposite to each other and kept connected, for accommodating through-wall devices.

[0011] The pressure cap is shaped like a hollow nut, with a through hole on its end face for placing the wall-penetrating device, and an internal thread on its axial inner side that matches the external thread of the main component. When the pressure cap is placed on the end of the main component and tightened, the pressure cap pushes the sleeve and drives the metal distributor to move inward. The metal distributor compresses the non-metallic distributor and deforms its outer surface and axial through hole, thereby achieving a seal.

[0012] As a preferred embodiment of the present invention, the number of axial through holes in the metal distributor and the non-metal distributor is 1 to 10 sets, and each set of through holes is arranged opposite to each other and remains connected.

[0013] As a preferred embodiment of the present invention, the metal dispenser and the non-metal dispenser have the same cross-sectional shape.

[0014] As a preferred embodiment of the present invention, the outer diameter of the metal distributor is set with an appropriate dimensional tolerance, and there is a clearance fit between it and the inner wall of the larger through hole of the sleeve; the outer diameter of the non-metallic distributor is set with an appropriate dimensional tolerance, and there is a clearance fit between it and the inner wall of the middle through hole inside the main component.

[0015] As a preferred embodiment of the present invention, the pin and the keyway of the main component are in a clearance fit or a tight fit.

[0016] As a preferred embodiment of the present invention, the keyway of the main component and / or sleeve has a semi-circular cross-sectional shape.

[0017] As a preferred embodiment of the present invention, the cross-section of the pin is circular or oblong.

[0018] As a preferred embodiment of the present invention, the maximum inner diameter through hole and the intermediate through hole of the main component are arranged coaxially.

[0019] As a preferred embodiment of the present invention, the inner diameter of the intermediate through hole of the main component is set with an appropriate dimensional tolerance; the larger inner diameter through hole of the sleeve is set with an appropriate dimensional tolerance.

[0020] As a preferred embodiment of the present invention, the end of the minimum inner diameter through hole of the main component has a pointed structure, and a copper washer is fitted on the pointed structure. The copper washer has undergone annealing heat treatment.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. The through-wall connector device provided by this invention achieves a seal by utilizing the synergy of its components. A metal distributor compresses a non-metallic distributor, causing deformation of its outer surface and axial through-hole. Therefore, it offers reliable high-pressure sealing, high pressure resistance, compatibility with various sensors, a simple structure, and ease of use.

[0023] 2. The wall-penetrating joint device of the present invention has a simple structure, is easy to disassemble and replace, and has good sealing performance and pressure resistance.

[0024] 3. This invention can be used for the installation of through-wall devices on high-pressure equipment such as storage tanks and pipelines for various high-pressure gaseous and liquid media; when multiple sets of through holes are set on the non-metallic distributor under the pressure of the metal distributor, it can be used to install various through-wall devices such as signal lines, cables, pipelines, and probes, and ensure normal data signal transmission inside and outside, thus having good applicability.

[0025] 4. Compared to the main components, the sleeve and metal distributor only move axially and will not rotate, thus effectively preventing the through-wall devices from getting tangled, effectively avoiding equipment damage caused by installation, and extending their service life. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the through-wall joint sealing device of the present invention;

[0027] Figure 2 This is a structural diagram of the main components;

[0028] Figure 3 This is a cross-sectional structural diagram of the pressure cap;

[0029] Figure 4 This is a cross-sectional view of the sleeve.

[0030] Figure 5 A cross-sectional structural diagram of a metal distributor;

[0031] Figure 6 A cross-sectional structural diagram of a non-metallic dispenser;

[0032] Figure 7 This is a cross-sectional view of a copper washer.

[0033] Figure 8 This is a schematic diagram of the pin's structure.

[0034] In the above figures, the left side is the left-side view of the product or component, and the right side is a sectional view of the product or component. Figure reference numerals: 1. Pressure cap; 2. Sleeve; 3. Metal distributor; 4. Non-metal distributor; 5. Main component; 6. Copper washer; 7. Pin. Detailed Implementation

[0035] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figure 1 As shown, the through-wall joint device that can achieve sealing function provided by the present invention includes: a pressure cap 1, a sleeve 2, a metal distributor 3, a non-metallic distributor 4, a main body component 5, and a pin 7.

[0037] The main component 5 is a tubular hollow structure with a hexagonal nut-shaped protrusion at the center of its outer surface. External threads are provided on the outer surface of the main component on both sides of the protrusion. The interior of the main component 5 consists of three continuously arranged through holes with different inner diameters, arranged in descending order to form two stepped structures; the through hole with the largest inner diameter is coaxial with the middle through hole. An axial keyway is provided on the inner wall of the through hole with the largest inner diameter.

[0038] The sleeve 2 is a hollow cylinder with two continuously arranged through holes inside, the inner diameters of which are different and form a stepped structure. An axial keyway is provided on the outer surface of the through hole with the smaller inner diameter. The sleeve 2 is installed in the through hole with the largest inner diameter of the main component 5, and its length is slightly larger than the axial dimension of the through hole. The keyway of the sleeve 2 is arranged opposite to the keyway of the main component 5. The pin 7 is inserted into the cavity formed by the two keyways to restrict the relative rotation between the sleeve 2 and the main component 5. The sleeve 2 and the main component 5 are in clearance fit, and the keyway of the sleeve 2 and the pin 7 are in clearance fit. The sleeve 2 can be displaced axially relative to the main component 5.

[0039] The metal distributor 3 is installed in the larger-diameter through hole of the sleeve 2, and its length is slightly larger than the axial dimension of the through hole; the non-metallic distributor 4 is installed in the intermediate through hole inside the main body component 5, and the inner diameter of the metal distributor 3 is slightly smaller than that of the non-metallic distributor 4; axial through holes are provided in both the metal distributor 3 and the non-metallic distributor 4, and these two through holes are arranged opposite to each other and remain connected, for accommodating through-wall devices. Optionally, the number of axial through holes in the metal distributor 3 and the non-metallic distributor 4 is 1 to 10 sets, and each set of through holes is arranged opposite to each other and remains connected.

[0040] The pressure cap 1 is in the shape of a hollow nut, with a through hole on its end face for placing the wall-penetrating device, and an internal thread on its axial inner side that matches the external thread of the main component 5. When the pressure cap 1 is put on the end of the main component 5 and tightened, the pressure cap 1 pushes the sleeve 2 and drives the metal distributor 3 to move inward. The metal distributor 3 compresses the non-metallic distributor 4 and deforms its outer surface and axial through hole, thereby achieving a seal.

[0041] A more specific example of the structure is described below:

[0042] See Figure 2 The main component 5 has external threads on both the left and right sides. The left external thread matches the internal thread of the pressure cap 1, and the right external thread matches the threads of the high-voltage equipment mounting hole and the internal interface. The middle part is machined into the shape of a hexagonal nut for easy tightening with wrenches and other tools during installation on the high-voltage equipment. The left external thread is used to install the pressure cap 1, and the right external thread is used to insert into the mounting hole of the high-voltage equipment and then fit the internal interface at its end for a tight installation. Inside the main component 5, there are three through holes from left to right with varying inner diameters. The right through hole with the smallest inner diameter is used for through-wall devices; the inner diameter of the middle through hole needs to be set with appropriate dimensional tolerances for placing the non-metallic distributor 4; the left through hole with the largest inner diameter is used to install the sleeve 2. The inner wall of the through hole has a keyway so that the sleeve 2 can only move axially and cannot rotate.

[0043] See Figure 3 The pressure cap 1 has a hollow nut shape with a through hole in the center of its end face and internal threads on its inner wall. The through hole is used for through-wall devices to pass through, and the internal threads are used to connect the pressure cap 1 and the main component 5.

[0044] See Figure 4 The sleeve 2 has two through holes with different diameters inside, with the right through hole having an appropriate dimensional tolerance for inserting the metal distributor 3. There is a coaxiality requirement between the sleeve 2 and the middle through hole of the main component 5.

[0045] See Figure 5 The metal distributor 3 is a cylinder with five evenly distributed through holes. The inner diameter of the through holes allows through-wall devices (such as wires) to pass through. The outer diameter of the metal distributor 3 needs to be set with appropriate dimensional tolerances and is clearance-fitted with the inner diameter of the through hole on the right side of the sleeve 2.

[0046] See Figure 6The non-metallic distributor 4 is a cylinder with five evenly distributed through holes. Its material needs to have certain pressure resistance and deform under pressure; epoxy resin, polytetrafluoroethylene, etc., can be selected. The outer diameter of the non-metallic distributor 4 needs to be set with appropriate dimensional tolerances, and it has a clearance fit with the central through hole of the main component 5. The outer diameter of the metallic distributor 3 is slightly smaller than that of the non-metallic distributor 4.

[0047] See Figure 7 and Figure 1 The right end of the main component 5 has a pointed structure, on which an annealed and heat-treated copper washer 6 is fitted. The copper washer 6 can deform during the internal interface installation process, thereby squeezing the end face of the main component 5 and further clamping the through-wall device.

[0048] See Figure 8 and Figure 1 The keyway between pin 7 and the main component 5 can be either a clearance fit or a tight fit. However, the keyway between pin 7 and sleeve 2 must be a clearance fit to ensure that sleeve 2 can be displaced relative to the main component 5. The cross-sectional shape of the keyway of the main component 5 and / or sleeve 2 can be semi-circular, and correspondingly, the cross-section of pin 7 is circular or oblong.

[0049] Design principles of the device structure:

[0050] The metal distributor and the non-metal distributor each have five through holes (the number and size of the through holes in this article can be arbitrary; for ease of explanation, five through holes are used in this case) to facilitate the insertion of wires (the wires are just one example for illustration; they can be replaced by other devices such as cables, pipes, or probes). The sleeve 2 has two through holes with different inner diameters. The wire is inserted through the left end, and the metal distributor 3 is inserted through the right end. The length of the metal distributor 3 is slightly greater than the length of the through hole on the right side of the sleeve 2, and its outer diameter is slightly smaller than that of the non-metal distributor 4. The length of the sleeve 2 is slightly greater than the length of the through hole on the right side of the main component 5.

[0051] During the assembly of the pressure cap 1, the position of the sleeve 2 is fixed by the pin 7, allowing it to move only axially. Under the action of the pressure cap 1, the sleeve 2 moves axially, compressing the metal distributor 3 and subsequently the non-metallic distributor 4, causing it to deform. This effectively eliminates gaps between the non-metallic distributor 4 and the wire, and between the non-metallic distributor 4 and the through hole of the main component 5, achieving a sealing effect. The pin 7 is used to fix the sleeve 2 relatively to the main component 5. During the tightening process of the pressure cap 1, the sleeve 2 and the metal distributor 3 only move axially, preventing them from rotating, thus effectively preventing the through-wall wires from tangling.

[0052] Example of the assembly process for a through-wall connector device:

[0053] Step 1: Inspect the mounting holes and internal interfaces of the high-voltage equipment, remove dirt, and ensure that the internal threads of the interface can be properly screwed into the external threads on the right end of the main component 5.

[0054] Step 2: Pass the wires sequentially through the main component 5, the non-metallic distributor 4, the metallic distributor 3, and the sleeve 2;

[0055] Step 3, press Figure 1 A schematic diagram of the positions of each component shows that the non-metallic distributor 4, the metal distributor 3, and the sleeve 2 are inserted into the main component 5 in sequence.

[0056] Step 4: Align the two keyways together and insert pin 7 into the keyways;

[0057] Step 5: Screw the pressure cap 1 onto the external thread on the left end of the main component 5 and tighten it to deform the non-metallic distributor 4 to eliminate the gap. The wall-penetrating connector device is now assembled.

[0058] Step 6: Place the copper washer 6 at the pointed end of the right side of the main component 5, and wrap Teflon tape around the external thread of the right side of the main component 5.

[0059] Step 7: Pass the through-wall connector through the mounting hole on the high-voltage equipment, then connect the internal interface and tighten it to ensure it is pressed against the internal thread of the internal interface. The lead connector installation is now complete.

[0060] Step 8: The wires leading from the inner interface of the high-voltage equipment are connected to the sensor through the aviation socket, and the wires leading from the cover 1 of the wall-penetrating connector on the outer side of the high-voltage equipment are connected to the signal transmitter through the aviation socket.

[0061] Step 9: The signal transmitter transmits the signal to the computer to realize the transmission of monitoring signals.

Claims

1. A through-wall joint device capable of achieving a sealing function, characterized in that, include: Main components, pressure caps, sleeves, metal distributors, non-metallic distributors, and pins; The main component is a tubular hollow structure with a hexagonal nut-shaped protrusion in the middle of its outer surface. External threads are provided on the outer surface of the main component on both sides of the protrusion. The internal through hole of the main component is divided into three sections, which are arranged continuously from large to small inner diameter to form two stepped structures. An axial keyway is provided on the inner wall of the section with the largest inner diameter. The sleeve is a hollow cylinder with an internal through hole divided into two sections with different inner diameters, forming a stepped structure. An axial keyway is provided on the outer surface of the smaller inner diameter section. The sleeve is installed inside the largest inner diameter section of the main component, and its length is slightly larger than the axial dimension of the largest inner diameter section. The keyway of the sleeve is arranged opposite to the keyway of the main component. The pin is inserted into the cavity formed by the two keyways to restrict the relative rotation between the sleeve and the main component. There is a clearance fit between the sleeve and the main component, and between the keyway of the sleeve and the pin. The sleeve can be displaced axially relative to the main component. The metal distributor is installed inside the larger inner diameter section of the sleeve, and its length is slightly larger than the axial dimension of the larger inner diameter section; the non-metallic distributor is installed inside the middle inner diameter section of the main component, and the inner diameter of the metal distributor is slightly smaller than that of the non-metallic distributor; axial through holes are provided in the metal distributor and the non-metallic distributor respectively, and the two axial through holes are arranged opposite to each other and kept connected, for accommodating through-wall devices. The pressure cap is shaped like a hollow nut, with a through hole on its end face for accommodating the wall-penetrating device, and an internal thread on its axial inner side that matches the external thread of the main component. When the pressure cap is fitted onto the end of the main component and tightened, the pressure cap pushes the sleeve, thereby causing the metal distributor to move inward. The metal distributor compresses the non-metallic distributor and deforms the outer surface and axial through hole of the non-metallic distributor, thereby achieving a seal.

2. The through-wall connector device according to claim 1, characterized in that, The number of axial through holes in the metal distributor and the non-metal distributor is 1 to 10 sets, and each set of through holes is arranged opposite to each other and remains connected.

3. The through-wall connector device according to claim 1, characterized in that, The metal dispenser and the non-metal dispenser have the same cross-sectional shape.

4. The through-wall connector device according to claim 1, characterized in that, The outer diameter of the metal distributor is set with a tolerance, and it has a clearance fit with the inner wall of the larger through hole in the sleeve; the outer diameter of the non-metallic distributor is set with a tolerance, and it has a clearance fit with the inner wall of the middle through hole inside the main component.

5. The through-wall connector device according to claim 1, characterized in that, The pin and the keyway of the main component are in a clearance fit or a tight fit.

6. The through-wall connector device according to claim 1, characterized in that, The keyway of the main component and / or sleeve has a semi-circular cross-sectional shape.

7. The through-wall connector device according to claim 1, characterized in that, The cross-section of the pin is circular or oblong.

8. The through-wall connector device according to claim 1, characterized in that, The maximum inner diameter through hole and the intermediate through hole of the main component are arranged coaxially.

9. The through-wall connector device according to claim 1, characterized in that, The inner diameter of the intermediate through hole of the main component is given a dimensional tolerance; the larger inner diameter through hole of the sleeve is given a dimensional tolerance.

10. The through-wall connector device according to any one of claims 1 to 9, characterized in that, The end of the minimum inner diameter through hole of the main component has a pointed structure, and a copper washer is fitted on the pointed structure. The copper washer has undergone annealing heat treatment.

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