CN217009590U - Nuclear power instrument control terminal row device - Google Patents

Abstract

The utility model discloses a nuclear power instrument control terminal row device which comprises a shell, wherein the shell comprises a first shell and a second shell which are rotatably connected; the inner cavity of the shell forms an accommodating space for mounting the terminal strip body; the shell is provided with a gas guide assembly for guiding inert gas into the accommodating space, an air pressure detector for detecting the air pressure of the accommodating space and a temperature sensor for detecting the temperature of the accommodating space; the shell is also provided with a wire outlet assembly for leading out a wire connected with the terminal strip body. The shell is equipped with the accommodation space that supplies the terminal row body installation, avoids terminal row body direct exposure to atmospheric environment in, simultaneously, sets up the air guide subassembly on the shell and can be to leading-in inert gas in the accommodation space, avoids terminal row body to appear corroding and weing, atmospheric pressure detector and temperature sensor etc. can detect the environmental parameter of accommodation space to ensure that the terminal row body is arranged in predetermined environment. Meanwhile, the nuclear power instrument control terminal row device is relatively simple in structure and convenient and fast to maintain.

Description

Nuclear power instrument control terminal row device

Technical Field

The utility model relates to the technical field of nuclear power, in particular to a nuclear power instrument control terminal row device.

Background

After nuclear power manufacturers transport for decades, the terminal strip used by the instrument control cable has the phenomena of aging, contact corrosion, poor contact, signal fluctuation and the like, the environment where most of the terminal strips with high fault rates are located is severe, the conditions of high temperature, high vibration, high corrosion and high humidity exist, and the aging process is accelerated. The signal fluctuation and the warning that the terminal strip contact failure leads to often appear in nuclear power plant can lead to the unit to jump to its inefficacy of important protection signal and pile, and the high fault rate of instrument control terminal strip brings huge challenge to operation personnel and maintenance personal's work, also has hidden danger and risk to the safe and stable operation of nuclear power plant.

The nuclear power station is located the special environment in seashore, and salt fog humidity is higher, and terminal exhaust gas tightness is relatively poor, and components such as external moisture, air, ash are contacted easily near electric conductor and the contact surface, and the contact surface has salt fog corrosion failure, seriously influences the transmission of signal.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a nuclear power instrument control terminal row device.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the nuclear power instrument control terminal row device comprises a shell, a first shell and a second shell, wherein the shell comprises a first shell and a second shell which are rotatably connected; the inner cavity of the shell forms an accommodating space for mounting the terminal strip body;

the shell is provided with an air guide assembly for guiding inert gas into the accommodating space, an air pressure detector for detecting the air pressure of the accommodating space and a temperature sensor for detecting the temperature of the accommodating space;

the shell is also provided with a wire outlet assembly for leading out a wire connected with the terminal strip body.

Preferably, the air guide assembly comprises an air inlet pipe and an air outlet pipe which are arranged in the first shell in a penetrating manner;

the end part of the air inlet pipe, which is positioned in the accommodating space, is provided with a one-way valve, and the end part of the air inlet pipe, which is positioned outside the first shell, is detachably sleeved with a first sealing sleeve;

the end part of the exhaust pipe, which is positioned outside the first shell, is detachably sleeved with a second sealing sleeve.

Preferably, the inner bottom surface of the second shell is provided with a guide rail, and the terminal strip body is detachably mounted on the guide rail.

Preferably, the outlet assembly comprises a first mounting part arranged on the lower side edge of the first shell and a second mounting part arranged on the upper side edge of the second shell and opposite to the first mounting part;

the first installation part and the second installation part protrude out of the end part of the shell, and a sealing sleeve shell is detachably sleeved on the end part of the shell.

Preferably, the first mounting portion comprises a first semi-ring clamping block and a first sealing block arranged on the inner periphery of the first semi-ring clamping block, and a first clamping groove is formed in one side, far away from the first semi-ring clamping block, of the first sealing block;

the second mounting part comprises a second semi-ring clamping block and a second sealing block arranged on the inner periphery of the second semi-ring clamping block, and a second clamping groove is formed in one side, far away from the second semi-ring clamping block, of the second sealing block;

the first clamping groove and the second clamping groove are matched oppositely to form an outlet groove for the lead to pass through.

Preferably, the peripheries of the first sealing block and the second sealing block are provided with sealing gaskets.

Preferably, a first sealing strip is arranged on the lower side edge of the first shell, and the first sealing strip is arranged to avoid the first mounting part;

the last side edge of second casing is equipped with the second sealing strip, the second sealing strip avoids the setting of second installation department.

Preferably, the first housing is connected with the first end of the second housing through a hinge;

the first shell and the second end of the second shell are fixedly connected through a locking assembly.

Preferably, the locking assembly comprises a first fixing plate vertically arranged on the first shell and a second fixing plate vertically arranged on the second shell, and the first fixing plate and the second fixing plate are arranged in parallel;

the fixing device further comprises a fastener penetrating through the first fixing plate and the second fixing plate.

Preferably, the shell is also provided with an early warning device;

the nuclear power instrument control terminal row device further comprises a control terminal connected with the air pressure detector, the temperature sensor and the early warning device.

The implementation of the utility model has the following beneficial effects: this nuclear power instrument accuse terminal row device includes the shell, and the shell is equipped with the accommodation space that supplies the terminal row body installation, avoids terminal row body direct exposure in atmospheric environment, simultaneously, sets up the leading-in inert gas in the air guide subassembly can be to the accommodation space on this shell, avoids the terminal row body to appear corroding and weing, and atmospheric pressure detector and temperature sensor etc. can detect the environmental parameter of accommodation space to ensure that the terminal row body is arranged in predetermined environment. Meanwhile, the nuclear power instrument control terminal row device is relatively simple in structure and convenient and fast to maintain.

Drawings

The utility model will be further described with reference to the following drawings and examples, in which:

FIG. 1 is a schematic diagram of the configuration of a nuclear power plant control terminal block apparatus of the present invention;

FIG. 2 is a cross-sectional view of a nuclear power plant control terminal block assembly of the present invention;

FIG. 3 is a schematic view of the first mounting portion of the present invention;

FIG. 4 is a schematic structural view of a second mounting portion of the present invention;

fig. 5 is a schematic structural view of a portion a in fig. 1.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by the terms "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of description of the present technical solution, but do not indicate that the device or element referred to must have a specific orientation, and thus, cannot be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-5, a nuclear power instrument control terminal row device of the present invention includes a housing 1, where the housing 1 includes a first shell 11 and a second shell 12 rotatably connected, and an inner cavity of the housing 1 forms an accommodating space a for installing a terminal row body 100.

The housing 1 is provided with an air guide assembly 2 for guiding inert gas into the accommodating space a, an air pressure detector 3 for detecting air pressure of the accommodating space a and a temperature sensor 4 for detecting temperature of the accommodating space a, and further, the housing 1 is provided with a wire outlet assembly 5 for leading out a wire (not shown) connected with the terminal strip body 100.

In the present embodiment, the housing 1 has a substantially square structure, and may be made of a metal member, such as stainless steel, or an aluminum alloy, and may be made of a material with high temperature resistance and corrosion resistance. The first housing 11 and the second housing 12 are both box structures having an opening, and the openings are disposed opposite to each other. Preferably, the housing 1 may further be provided with a handle for carrying and carrying. Preferably, the peripheral side surface or the bottom surface of the housing 1 may also be provided with a plurality of fixing supports, for example, four fixing supports, and each fixing support may be provided with a threaded hole for fastening a bolt or the like to fix the housing 1 to a predetermined position, so as to improve the stability of the mounting of the housing 1.

Referring to fig. 1 and 2, in the present embodiment, the first ends of the first housing 11 and the second housing 12 are connected by a hinge 13, for example, the same side of the first housing 11 and the second housing 12 is connected by the hinge 13 to realize rotation, and the hinge 13 may be provided in plurality. Of course, a first mounting seat may also be disposed on the outer side surface of the first casing 11, a second mounting seat is disposed opposite to the second casing 12, and the first mounting seat and the second mounting seat are rotatably connected together through a rotating shaft. The connection mode of the first housing 11 and the second housing 12 may be various, and may be selected according to actual requirements, which is not limited specifically herein.

As shown in fig. 5, the first housing 11 is fixedly connected to the second end of the second housing 12 by a locking assembly 14.

The locking assemblies 14 may be one or more, for example, two locking assemblies 14 may be arranged at intervals, each locking assembly 14 includes a first fixing plate 141 vertically arranged on the first housing 11, a second fixing plate 142 vertically arranged on the second housing 12, the first fixing plate 141 and the second fixing plate 142 are arranged in parallel, and a fastener 143 penetrating through the first fixing plate 141 and the second fixing plate 142. It is understood that the first fixing plate 141 and the second fixing plate 142 are provided with threaded holes opposite to each other for the fasteners 143 to pass through, and the fasteners 143 may be bolts, screws or cylindrical pins. The locking assembly 14 can lock the first housing 11 and the second housing 12. Of course, the locking assembly 14 may also be in the form of a latch or the like.

In this embodiment, the inner bottom surface of the second housing 12 is provided with a rail 6, and the terminal block body 100 is detachably mounted on the rail 6. The guide rail 6 may be fixed on the inner bottom surface of the second housing 12 by a screw or a bolt, or may be fixed by a fastening means such as a snap. Preferably, the guide rail 6 may be a substantially U-shaped structure, and may include a U-shaped main body portion, two ends of the main body portion extend outwards to form a hook structure, and the bottom end of the terminal strip body 100 is provided with a groove structure, and the hook structure abuts against an inner side wall surface of the groove structure. The guide rail 6 is a longitudinal structure, and can extend along the length direction of the housing 1 for mounting a plurality of terminal block bodies 100.

In this embodiment, this gas guide subassembly 2 is including wearing to locate the intake pipe 21 and the blast pipe 24 of first casing 11, wherein, the tip that intake pipe 21 is located accommodation space a is equipped with check valve 22, the cover can be dismantled to the tip that intake pipe 21 is located the first casing 11 outside is equipped with first seal cover 23, the tip periphery that this intake pipe 21 is located the first casing 11 outside can be equipped with the external screw thread, the inner chamber of this first seal cover 2 is equipped with the internal thread, the two threaded connection, when needs pour inert gas into, then tear out this first seal cover 2, connect the inert gas source with intake pipe 21, if can be through hose connection inert gas jar, after filling with inert gas source in this accommodation space a, break off intake pipe 21 and inert gas source, pack first seal cover 23 back intake pipe 21 and seal.

Correspondingly, the end of the exhaust pipe 24 located outside the first housing 11 is detachably sleeved with a second sealing sleeve 25.

Referring to fig. 2-4, in the present embodiment, a plurality of outlet assemblies 5 may be provided, each outlet assembly 5 includes a first mounting portion 51 disposed on a lower side edge of the first housing 11, and a second mounting portion 52 disposed on an upper side edge of the second housing 12 and opposite to the first mounting portion 51. The end parts of the first installation part 51 and the second installation part 52 protruding out of the shell 1 are detachably sleeved with a sealing sleeve 53, the sealing sleeve 53 can be in threaded connection with the first installation part 51 and the second installation part 52, when a line needs to be led out, the sealing sleeve 53 is detached, and when the line does not need to be led out, the sealing sleeve 53 can improve the sealing performance of the shell 1.

In this embodiment, the lower side edge of the first housing 11 may be provided with a first mounting groove for mounting the first mounting portion 51, and the upper side edge of the second housing 12 may be provided with a second mounting groove for mounting the second mounting portion 52.

Preferably, the first mounting portion 51 includes a first half ring clamping block 511, and a first sealing block 512 disposed on an inner periphery of the first half ring clamping block 511, and a first clamping groove 5121 is disposed on a side of the first sealing block 512 away from the first half ring clamping block 511.

The second mounting portion 52 includes a second half ring clamping block 521, a second sealing block 522 disposed on an inner periphery of the second half ring clamping block 521, and a second clamping groove 5221 is disposed on a side of the second sealing block 522 away from the second half ring clamping block 521.

The first holding groove 5121 and the second holding groove 5221 are relatively engaged to form an outlet groove for a wire to pass through.

In this embodiment, the first and second mounting portions 51 and 52 may have the same structure, the first and second sealing blocks 512 and 522 may be soft and have a certain elasticity, such as a silicon material, and the first and second holding grooves 5121 and 5221 may have a substantially C-shaped structure. One end of the wire is connected to the terminal strip body 100, and the other end of the wire penetrates through the wire outlet groove.

Preferably, the first sealing block 512 and the second sealing block 522 are provided with sealing gaskets on the outer peripheries, in this embodiment, the upper edge of the first half-ring clamping block 511 may be lower than the first sealing block 512, the upper edge of the first half-ring clamping block 511 is provided with a first sealing gasket 513, and the upper edge of the first sealing gasket 513 is flush with the upper edge of the first sealing block 512. Correspondingly, the upper edge of the second half-ring clamping block 521 may be lower than the second sealing block 522, the upper edge of the second half-ring clamping block 521 is provided with a second gasket 523, and the upper edge of the second gasket 523 is flush with the upper edge of the second sealing block 522.

Preferably, the lower edge of the first casing 11 is provided with a first weather strip 7, the first weather strip 7 is disposed to avoid the first mounting portion 51, the upper edge of the second casing 12 is provided with a second weather strip 8, and the second weather strip 8 is disposed to avoid the second mounting portion 52. The first sealing strip 7 and the second sealing strip 8 may be silicone pieces.

In this embodiment, an early warning device is further disposed on the housing 1, and the nuclear power instrument control terminal row device further includes a control terminal connected to the air pressure detector 3, the temperature sensor 4, and the early warning device. The control terminal can be a notebook computer, a mobile phone or a tablet computer and the like. The temperature sensor 4 may comprise a thermocouple. The early warning device can be a warning lamp 9, such as an LED, and can be provided in a plurality of ways, such as two warning lamps, wherein one warning lamp can independently prompt air pressure, and the other warning lamp can independently prompt temperature. Further, the air pressure detector 3, the temperature sensor 4 and the early warning device may be built-in batteries or may be connected to an external power supply.

In this embodiment, when the pressure in the accommodating space a is too low, the control terminal controls one of the alarm lamps 9 to light up, and when the temperature sensor 4 detects that the internal temperature is too high, the other alarm lamp 9 will light up. Of course, the alarm may be a buzzer or the like.

In this embodiment, when installing the wires, the screw threads are rotated to remove all the sealing sleeves 53, then the tool is used to rotate the fastening member 143, the first housing 11 is opened by turning over, the wires are installed on the terminal block bodies 100, then the wires are placed in the corresponding second clamping grooves 5221, the first housing 11 is closed, the first fixing plate 141 and the second fixing plate 142 are fixed by the fastening member 143, then the first sealing sleeve 23 and the second sealing sleeve 25 are removed, the air inlet pipe 21 is connected with the inert gas source, the inert gas enters the accommodating space a from the air inlet pipe 21, after a period of continuous filling, the second sealing sleeve 25 at the top of the air outlet pipe 21 is fixed in a sleeved manner, a certain amount of inert gas is continuously filled, the internal air pressure condition in the accommodating space a is monitored by observing the air pressure detector 3, after the air is filled to a proper pressure, the air inlet pipe 21 is fixedly sleeved by the first sealing sleeve 23, terminal row body 100 wraps up in inert gas completely, avoids appearing corroding and weing, and inside is provided with temperature sensor 4 and is used for the inside high temperature condition of real-time supervision accommodation space A, if the high temperature appears through the predetermined range, can send out the warning by alarm lamp 9, also goes out to trigger corresponding alarm lamp 9 when barodetector 4 detects out inside decompression and lights to the suggestion staff notices. The inert gas may be helium, but in some embodiments, nitrogen may also be used, and is not limited thereto.

It can be understood, this nuclear power instrument accuse terminal row device includes shell 1, shell 1 is equipped with the accommodation space A that supplies terminal row body 100 installation, avoid terminal row body 100 direct exposure in atmospheric environment, and simultaneously, it can be to leading-in inert gas in the accommodation space A to set up the air guide subassembly 2 on this shell 1, avoid terminal row body 100 to appear corroding and weing, atmospheric pressure detector 3 and temperature sensor 4 etc. can detect the environmental parameter of accommodation space A, in order to ensure that terminal row body 100 arranges predetermined environment in. Meanwhile, the nuclear power instrument control terminal row device is relatively simple in structure and convenient and fast in later maintenance.

It should be understood that the above examples only represent the preferred embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (10)

1. The nuclear power instrument control terminal row device is characterized by comprising a shell (1), wherein the shell (1) comprises a first shell (11) and a second shell (12) which are rotatably connected; an inner cavity of the shell (1) forms an accommodating space (A) for mounting the terminal strip body (100);

the shell (1) is provided with an air guide assembly (2) for guiding inert gas into the accommodating space (A), an air pressure detector (3) for detecting the air pressure of the accommodating space (A) and a temperature sensor (4) for detecting the temperature of the accommodating space (A);

the shell (1) is further provided with a wire outlet assembly (5) for leading out a wire connected with the terminal strip body (100).

2. The nuclear power instrument control terminal row device according to claim 1, wherein the air guide assembly (2) comprises an air inlet pipe (21) and an air outlet pipe (24) penetrating the first housing (11);

a one-way valve (22) is arranged at the end part of the air inlet pipe (21) positioned in the accommodating space (A), and a first sealing sleeve (23) is detachably sleeved at the end part of the air inlet pipe (21) positioned outside the first shell (11);

the end part of the exhaust pipe (24) positioned on the outer side of the first shell (11) is detachably sleeved with a second sealing sleeve (25).

3. The nuclear power plant control terminal block device according to claim 1, wherein the inner bottom surface of the second housing (12) is provided with a guide rail (6), and the terminal block body (100) is detachably mounted on the guide rail (6).

4. The nuclear power plant control terminal block arrangement according to claim 1, wherein the outlet assembly (5) includes a first mounting portion (51) provided on a lower side edge of the first housing (11), and a second mounting portion (52) provided on an upper side edge of the second housing (12) and disposed opposite to the first mounting portion (51);

the end parts of the first installation part (51) and the second installation part (52) protruding out of the shell (1) are detachably sleeved with a sealing sleeve (53).

5. The nuclear power instrument control terminal row device according to claim 4, wherein the first mounting portion (51) comprises a first half ring clamping block (511), a first sealing block (512) is arranged on the inner periphery of the first half ring clamping block (511), and a first clamping groove (5121) is formed in one side, away from the first half ring clamping block (511), of the first sealing block (512);

the second mounting part (52) comprises a second half ring clamping block (521), a second sealing block (522) arranged on the inner periphery of the second half ring clamping block (521), and a second clamping groove (5221) is formed in one side, far away from the second half ring clamping block (521), of the second sealing block (522);

the first clamping groove (5121) and the second clamping groove (5221) are oppositely matched to form an outlet groove for the lead to pass through.

6. The nuclear power instrument control terminal block arrangement according to claim 5, wherein the first sealing block (512) and the second sealing block (522) are provided with sealing gaskets on the outer peripheries.

7. The nuclear power plant control terminal block arrangement according to claim 6, wherein the lower side edge of the first housing (11) is provided with a first sealing strip (7), the first sealing strip (7) being arranged avoiding the first mounting portion (51);

the last side edge of second casing (12) is equipped with second sealing strip (8), second sealing strip (8) are avoided second installation department (52) set up.

8. The nuclear power plant control terminal block arrangement according to claim 7, characterized in that the first housing (11) is connected with the first end of the second housing (12) by a hinge (13);

the second ends of the first shell (11) and the second shell (12) are fixedly connected through a locking assembly (14).

9. The electrical control terminal block arrangement according to claim 8, wherein the locking assembly (14) comprises a first fixing plate (141) vertically disposed on the first housing (11), and a second fixing plate (142) vertically disposed on the second housing (12), the first fixing plate (141) being disposed in parallel with the second fixing plate (142);

the fixing device also comprises a fastener (143) penetrating through the first fixing plate (141) and the second fixing plate (142).

10. The nuclear power instrument control terminal row device according to claim 1, wherein the housing (1) is further provided with an early warning device;

the nuclear power instrument control terminal row device further comprises a control terminal connected with the air pressure detector (3), the temperature sensor (4) and the early warning device.

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