CN210109627U

CN210109627U - Control card replacing device for 1E-level DCS system

Info

Publication number: CN210109627U
Application number: CN201921120679.2U
Authority: CN
Inventors: 王佳; 黄四和; 王云翔; 王五妹; 彭磊; 刘阳; 陈锦裕
Original assignee: CNNC Fujian Nuclear Power Co Ltd
Current assignee: CNNC Fujian Nuclear Power Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-02-21
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to a nuclear power maintenance technical field specifically discloses a 1E level DCS system control fastener more changes device, through locating two fixed columns of fastener with the U type groove card of installing the base on, makes things convenient for staff's operating handle to realize the change to different fasteners. The utility model discloses device is changed to control fastener simple structure, convenient operation requires lowerly to the staff.

Description

Control card replacing device for 1E-level DCS system

Technical Field

The utility model belongs to the technical field of the nuclear power maintenance, concretely relates to 1E level DCS system control fastener changes device.

Background

A1E-level DCS control system of the nuclear power station is used as a bearing cabinet of a reactor protection system, so that safe and stable operation of a unit is guaranteed. When the clamping piece breaks down, the spare part is inserted into the spare groove on site, and the clamping piece is replaced in a hot plug mode.

Traditional replacement mode is by the bare-handed plug fastener of staff, and the fastener respectively has a fixed column of about 0.5CM of length from top to bottom, and the staff drives the fastener through plug fixed column. However, there are many problems with this approach, mainly including the following:

1) the requirement on the proficiency of workers is high;

2) the wiring on the side of the cabinet is complicated and is easy to be touched by mistake;

3) pins can be damaged in the plugging process, so that the clamping piece is damaged;

4) the clamping pieces in the cabinet are tightly installed and are difficult to plug and unplug, and the clamping pieces cannot be unplugged due to slight installation deviation;

5) the shutdown and shutdown risks exist, and the time is urgent.

Disclosure of Invention

An object of the utility model is to provide a 1E level DCS system control fastener changes device is convenient for more operate the change of fastener.

The technical scheme of the utility model as follows:

A1E-level DCS system control card replacing device is used for replacing cards and comprises handrails and a base;

a fixing column and a clamping piece communication port are arranged on a side panel of the clamping piece;

the clamping piece comprises a clamping piece body, two fixing columns and a clamping piece body, wherein the two fixing columns are respectively positioned at the upper part and the lower part of one side panel of the clamping piece body and comprise a column body and a column cap, and the diameter of the column cap is larger than that of the column body and used for fixing the clamping piece body on a bottom plate of the rack;

the bottom of the column body is welded and fixed with the panel of the clamping piece;

the card piece communication port comprises an indicator light and an interface;

the two bases are rectangular plates, and one side of each base is provided with a U-shaped groove;

the width of the U-shaped groove is matched with the diameter of the fixing column;

the handrail is of a C-shaped structure;

two ends of the handrail are respectively welded and fixed with the two bases;

the distance between the U-shaped grooves of the two bases is the same as the distance between the two fixed columns on the clamping piece;

through locating two fixed columns of fastener with the U type groove card of base on, make things convenient for staff's operating armrest to realize the change to different fasteners.

The openings of the U-shaped grooves of the two bases are consistent in direction, so that force can be applied in one direction conveniently.

The size of the base can avoid all the card communication ports on the card panel, and the card can be uniformly pulled out under stress, so that the pins of the card are not easy to damage.

The U-shaped groove of the base is provided with a chamfer, so that the use is convenient.

The surface of the handrail is polished smoothly, and workers are not easy to be damaged.

The card is MP processor card, RXM communication card, DI digital input card, DO digital output card, AI analog input card or AO analog output card of the Tricon platform.

The beneficial effects of the utility model reside in that:

(1) the utility model discloses device is changed to control fastener simple structure, convenient operation requires lowerly to the staff.

(2) The utility model discloses control fastener more changes and to change the U type groove on the device to the base and carry out the chamfer, the not fragile stitch of plug in-process, and the length of base sets up rationally, can avoid the connector on all fastener panels, can make the fastener atress extract, the stitch of not fragile fastener again evenly.

(3) The utility model discloses control fastener more changes device can not receive the influence of fastener category and site environment, is applicable to the extraction of Fuqing nuclear power 1-4 unit 1E level DCS system fastener, can promote other power plants and petrochemical industry enterprises that use the Tricon platform equally simultaneously, optimizes and the size optimization through the interface in addition, also can apply to other designs and extract the buckle, through the plate that stitch and backplate are connected.

(4) Use the utility model discloses after the control fastener replacement device, obviously improved the efficiency of changing the fastener, avoid the risk that the unit withdraws after appearing during power operation.

Drawings

FIG. 1 is a schematic view of a replacement device;

FIG. 2 is a schematic view of the structure of the card member;

fig. 3 is a schematic view of the connection between the replacing device and the card member.

In the figure: 1-a fastener; 2-fixing the column; 3-a handrail; 4-a base; 5-card communication port.

Detailed Description

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

Fig. 1 shows a 1E-level DCS system control card replacing device for replacing a card 1, which comprises an armrest 3 and a base 4.

The card 1 is an MP processor card, an RXM communication card, a DI digital input card, a DO digital output card, an AI analog input card or an AO analog output card of a Tricon platform.

And a fixed column 2 and a clamping piece communication port 5 are arranged on a side panel of the clamping piece 1.

Fixed column 2 have two, be located the upper portion and the lower part of 1 side board of fastener respectively, including cylinder and cap, the cap diameter is greater than the cylinder diameter for fix fastener 1 on the bottom plate of frame. The bottom of the column body is welded and fixed with the panel of the clamping piece 1, and an insulating layer is arranged on the column cap. For example, the cylinder diameter is 7mm and the cap diameter is 9 mm.

The card piece communication port 5 comprises an indicator light and an interface. For example, a clamping piece state indicator lamp, a network cable port, a light port and a connecting wire port are sequentially arranged on the MP clamping piece panel from top to bottom; the RXM card panel is sequentially provided with a card state indicator lamp and three light ports from top to bottom; and only the card state indicator lamp is arranged on the input/output card panel.

The base 4 has two, for rectangular plate, has processed U type groove in its one side. The thickness of base 4 is 7mm, the width is 23mm, length is 20mm, can avoid all fastener communication ports 5 on the fastener 1 panel, can make fastener 1 atress extract evenly again, not fragile fastener 1's stitch. The width in U type groove matches with the cylinder diameter of fixed column 2, is 7 mm. A chamfer is processed at the U-shaped groove of the base 4, so that the use is convenient.

The handrail 3 is of a C-shaped structure, the surface of the handrail is polished smoothly, and workers are not easy to damage. The two ends of the handrail 3 are respectively welded and fixed with the two bases 4, and the openings of the U-shaped grooves of the two bases 4 are consistent in direction, so that force can be applied in one direction conveniently. The distance between the U-shaped grooves of the two bases 4 is the same as the distance between the two fixing columns 2 on the clamping piece 1.

Through locating two fixed columns 2 of fastener 1 with the U type groove card of base 4 on, make things convenient for staff's operating arm rest 3 to realize the change to different fasteners 1.

Claims

1. The utility model provides a 1E level DCS system control fastener more device which characterized in that: the replacing device is used for replacing the clamping piece (1) and comprises a handrail (3) and a base (4);

a fixed column (2) and a clamping piece communication port (5) are arranged on a side panel of the clamping piece (1);

the two fixing columns (2) are respectively positioned at the upper part and the lower part of one side panel of the clamping piece (1), comprise a column body and a column cap, and the diameter of the column cap is larger than that of the column body and is used for fixing the clamping piece (1) on a bottom plate of the rack;

the bottom of the column body is welded and fixed with a panel of the clamping piece (1);

the card piece communication port (5) comprises an indicator light and an interface;

the two bases (4) are rectangular plates, and one side of each base is provided with a U-shaped groove;

the width of the U-shaped groove is matched with the diameter of the fixing column (2);

the handrail (3) is of a C-shaped structure;

two ends of the handrail (3) are respectively welded and fixed with the two bases (4);

the distance between the U-shaped grooves of the two bases (4) is the same as the distance between the two fixing columns (2) on the clamping piece (1);

through locating two fixed columns (2) of fastener (1) with the U type groove card of base (4), make things convenient for staff's operating handle (3) to realize the change to different fasteners (1).

2. The class-1E DCS system control card replacement device of claim 1, wherein: the openings of the U-shaped grooves of the two bases (4) are consistent in direction, so that force can be applied in one direction conveniently.

3. The class-1E DCS system control card replacement device of claim 2, wherein: the size of the base (4) can avoid all the card communication ports (5) on the panel of the card (1), and the card (1) can be uniformly pulled out under stress, so that the pins of the card (1) are not easy to damage.

4. The class-1E DCS system control card replacement device of claim 3, wherein: a chamfer is processed at the U-shaped groove of the base (4), so that the use is convenient.

5. The class-1E DCS system control card replacement device of claim 4, wherein: the surface of the handrail (3) is polished smoothly, and workers are not easy to be damaged.

6. The device for replacing the control card of the 1E-level DCS system according to any one of claims 1 to 5, wherein: the card (1) is an MP processor card, an RXM communication card, a DI digital input card, a DO digital output card, an AI analog input card or an AO analog output card of a Tricon platform.