High-temperature and high-pressure sealing electrical penetration assembly

Abstract

The utility model discloses a high-temperature and high-pressure sealed electrical penetration assembly, relates to the technical field of electrical penetration assemblies, and is used for solving the problems that the existing penetration assembly is damaged due to factors such as vibration, thermal expansion and cold contraction in the operation process of a nuclear power station, and the stability of electric power and signal transmission cannot be ensured. The penetration piece comprises a glass sintering shell of a penetration piece main body part, wherein the glass sintering shell is connected with a flange through a clamping ring; a plurality of elastic steel ball assemblies are installed on the glass sintering assembly and matched with corresponding spherical holes in the flange to form a damping mechanism. And a combined metal O-shaped sealing ring is arranged on the end surface of one side of the glass sintering shell. Through the structural design, the radiation resistance, the high temperature resistance, the aging resistance and the sealing performance are improved, reliable electrical connection is provided in an extreme environment, and the problem that steering is needed in penetration piece installation is solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrical penetration components, specifically relating to a high-temperature and high-pressure sealed electrical penetration component. Background Technology

[0002] Penetrators for nuclear power plant turbines and generators are electrical devices that monitor critical parameters during generator operation and transmit current to various equipment such as turbines and generators to meet the power demands of the nuclear power plant. Under both normal and accident conditions, these penetrations must maintain the integrity of the pressure boundary. The problem with existing penetrations is their inability to operate long-term under continuous radiation and high-temperature environments. Penetrators used in nuclear power plants and the nuclear industry under high-temperature, high-pressure, high-radiation, and vibration conditions are prone to damage during nuclear power plant operation due to vibration, thermal expansion and contraction, etc., compromising the stability of power and signal transmission. Utility Model Content

[0003] The purpose of this utility model is to provide a high-temperature and high-pressure sealed electrical penetration component, which solves the problem that existing penetration components are damaged due to factors such as vibration and thermal expansion and contraction during the operation of nuclear power plants, and cannot ensure the stability of power and signal transmission.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a high temperature and high pressure sealed electrical penetration component, which includes: a glass sintered shell of the main body of the penetration component, the glass sintered shell being connected to a flange by a retaining ring; a number of elastic steel ball components are installed on the glass sintered component, which cooperate with the corresponding spherical holes on the flange to form a damping mechanism; a combined metal O-ring is installed on one end face of the glass sintered shell.

[0005] In the aforementioned high-temperature and high-pressure sealed electrical penetration component, the flange is a circular structure with several screw holes, which are used to fix the flange to the enclosure to be installed.

[0006] In the aforementioned high-temperature and high-pressure sealed electrical penetration component, the main body of the glass sintered shell is a cylindrical structure with a protruding portion and several annular grooves.

[0007] In the aforementioned high-temperature and high-pressure sealed electrical penetration component, an elastic steel ball assembly is installed on the lower end face of the protruding portion on the glass sintered shell and fits against the upper end face of the flange; the outer edge of the protruding portion fits against the flange, and a retaining ring is provided between the two.

[0008] In the aforementioned high-temperature and high-pressure sealed electrical penetration component, the glass sintering assembly and the flange are rotatable, and the rotation is achieved through a damping mechanism.

[0009] In the aforementioned high-temperature and high-pressure sealed electrical penetration component, the elastic steel ball assembly is pressed into the glass sintered shell by an interference fit.

[0010] The above-mentioned high-temperature and high-pressure sealed electrical penetration component includes a glass sintered pin and a glass blank sealing component bonded together by glass bonding inside the glass sintered shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: The high temperature and high pressure sealed electrical penetration component provided by this utility model overcomes the shortcomings of ordinary penetration components. On the one hand, through improvement and upgrading, this penetration component is resistant to radiation, high temperature, and aging, and has good sealing performance. On the other hand, it ensures reliable electrical connection under temperature changes, liquid immersion, vibration, and impact. Furthermore, by adding a variable direction damping mechanism, it solves the problem of needing to turn the penetration component during installation. Attached Figure Description

[0012] Figure 1 The figure shown is a cross-sectional schematic diagram of a high-temperature and high-pressure sealed electrical penetration component according to this utility model;

[0013] Figure 2 The image shown is a front view of a high-temperature and high-pressure sealed electrical penetration component according to this utility model.

[0014] Figure 3 The diagram shown is a schematic of a combined metal O-ring seal structure for a high-temperature and high-pressure sealing electrical penetration component according to this utility model.

[0015] The following are the labels in the attached drawings: 111. Sintered glass shell; 112. Sintered glass insert; 113. Glass blank; 114. Combined metal O-ring seal; 115. Elastic steel ball assembly; 116. Snap ring; 117. Flange. Detailed Implementation

[0016] To address the problem that existing penetrations are prone to damage during nuclear power plant operation due to vibration, thermal expansion and contraction, and other factors, thus compromising the stability of power and signal transmission, this utility model provides a high-temperature, high-pressure sealed electrical penetration. For example... Figures 1-3 As shown, the through-piece includes: a variable-direction damping mechanism, a glass sintering assembly, and a combined metal O-ring seal 114. The glass sintering assembly includes: a glass sintering shell 111, a glass sintering pin 112, and a glass blank 113. After softening the glass at high temperature, the glass sintering pin 112 and the glass blank 113 are bonded to the inside of the glass sintering shell 111 to achieve a sealing effect. The main body of the glass sintering shell 111 is a cylindrical structure with a protruding portion and several annular grooves.

[0017] The variable-direction damping mechanism includes: an elastic steel ball assembly 115, a flange 117, a glass sintering assembly, and a retaining ring 116. The flange 117 is a circular structure with several screw holes, and is fixed to the housing to be installed by screws. A glass sintering shell 111 penetrates the main body of the component and is connected to the flange 117 via the retaining ring 116. Several elastic steel ball assemblies 115 are installed on the glass sintering assembly, and are pressed into the glass sintering shell 111 by interference fit. The elastic steel ball assemblies 115 and corresponding spherical holes on the flange 117 cooperate to form the damping mechanism. A combined metal O-ring seal 114 is installed on one end face of the glass sintering shell 111. An elastic steel ball assembly 115 is mounted on the lower end face of the protruding portion of the glass sintering shell 111 and fits against the upper end face of the flange 117; a retaining ring 116 is provided between the outer edge of the protruding portion and the flange 117. The glass sintering assembly and the flange 117 can rotate, and the rotation is achieved by a damping mechanism.

[0018] It should be noted that the combination of the technical features in the embodiments of this utility model is not limited to the combination methods recorded in the embodiments of this utility model or the combination methods recorded in specific embodiments. All technical features recorded in this utility model can be freely combined or combined in any way, unless there is a contradiction between them.

[0019] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature, high-pressure sealed electrical penetration component, characterized in that, The penetrating component includes: a glass sintered shell (111) of the main body of the penetrating component, the glass sintered shell (111) being connected to a flange (117) via a retaining ring (116); a number of elastic steel ball assemblies (115) are installed on the glass sintered assembly, which cooperate with the corresponding spherical holes on the flange (117) to form a damping mechanism; and a combined metal O-ring seal (114) is installed on one end face of the glass sintered shell (111).

2. The high-temperature and high-pressure sealed electrical penetration component according to claim 1, characterized in that, The flange (117) is a circular structure with several screw holes. The flange (117) is fixed to the box to be installed by screws.

3. The high-temperature and high-pressure sealed electrical penetration component according to claim 1, characterized in that, The main body of the glass sintered shell (111) is a cylindrical structure with a protruding part and several annular grooves.

4. The high-temperature and high-pressure sealed electrical penetration component according to claim 3, characterized in that, An elastic steel ball assembly (115) is installed on the lower end face of the protruding part of the glass sintered shell (111) and fits against the upper end face of the flange (117); the outer edge of the protruding part fits against the flange (117), and a retaining ring (116) is provided between the two.

5. A high-temperature and high-pressure sealed electrical penetration component according to any one of claims 1 to 4, characterized in that, The glass sintering assembly can rotate between itself and the flange (117), and the rotation is achieved through a damping mechanism.

6. A high-temperature and high-pressure sealed electrical penetration component according to claim 1, characterized in that, The elastic steel ball assembly (115) is pressed into the glass sintered shell (111) by an interference fit.

7. A high-temperature and high-pressure sealed electrical penetration component according to claim 1, characterized in that, The glass sintered shell (111) contains a glass sintered pin (112) and a glass blank (113) seal bonded together by glass.

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