Instrument control system signal debugging and receiving device of nuclear power station steam turbine

Abstract

The utility model discloses an instrument control system signal debugging and receiving device of a nuclear power station steam turbine, and relates to the technical field of steam turbines. Comprising a receiving device body, and a connector sleeve is arranged on the outer side of a power-on slot in one end of the back of the receiving device body; one end of the connecting line is inserted into the electrifying slot on the receiving device main body and penetrates through the joint sleeve; the limiting assembly is arranged in the joint sleeve; and the heat dissipation assembly is arranged in a placement groove at the other end of the back surface of the receiving device main body. According to the instrument control system signal debugging receiving device of the nuclear power station steam turbine, the connector sleeve is arranged on the outer side of the electrifying inserting groove of the receiving device body, the connector sleeve is matched with the limiting assembly on the connector sleeve to limit a connecting wire inserted into the electrifying inserting groove, the connecting stability of the connecting wire is improved, meanwhile, the limiting plate is limited through the movable plate, and the stability of the connecting wire is improved. Therefore, the connecting wire can be pulled out by one hand, and the requirement of pulling out the wire by one hand is met.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbines, in particular to a signal debugging receiving device for an instrumentation control system of a steam turbine in a nuclear power plant. Background Art

[0002] The steam turbine instrumentation and control system is an important part of the operation of the steam turbine. Before the operation of the steam turbine, its instrumentation and control system needs to be debugged, so a signal debugging receiving device is needed. The existing signal debugging receiving device does not have the function of preventing it from falling off, which causes the plug of the signal debugging receiving device to be easily fallen off during use, thereby having a certain impact on the received information.

[0003] The utility model with publication number CN 213845719 U discloses a signal debugging receiving device based on a steam turbine instrumentation and control system, comprising a receiver body, three plug connectors 1 are installed on the right side of the receiver body, plug connector 2 is plugged into the surface of the plug connector 1 located on the front side, three outer rings are fixedly connected to the right side of the receiver body, the plug connector 1 is located in the inner cavity of the outer ring, and grooves are provided on the top and bottom of the inner cavity of the outer ring.

[0004] As shown in the above-mentioned utility model, the existing receiving device limits the connecting line by setting a limiting mechanism to prevent the connecting line from loosening. Although this method ensures the connection stability of the connecting line, a squeezing operation is required to pull out the connecting line. Sometimes it is inconvenient to pull out the line with one hand, and the existing receiving device generally dissipates heat through natural ventilation, which cannot meet the heat dissipation requirements of the receiving device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a signal debugging receiving device for an instrumentation and control system of a nuclear power plant steam turbine, which solves the above-mentioned problems.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a signal debugging receiving device for an instrumentation and control system of a nuclear power plant steam turbine, comprising:

[0007] A receiving device body, wherein a connector sleeve is provided outside the power supply slot at one end of the back side of the receiving device body;

[0008] A connecting wire, one end of which is inserted into the power supply slot on the receiving device body and passes through the connector sleeve;

[0009] A limiting component, which is arranged in the connector sleeve and is used to limit the connection line in the connector sleeve;

[0010] The heat dissipation component is arranged in the placement groove at the other end of the back side of the receiving device body, and is used to dissipate heat from the inner cavity of the receiving device body.

[0011] Preferably, the limiting assembly comprises a movable plate sleeved on the outside of the joint sleeve, the movable plate is arranged as an annular structure, and one end of the movable plate is connected to the receiving device body via a first spring.

[0012] Preferably, a plurality of through grooves distributed in a circular array are provided on the circumferential side of the end of the joint sleeve, a limiting plate is connected through the through groove, an arc plate is fixed at one end of the limiting plate, spring grooves are provided on both sides of the opening of one end of the through groove, a second spring is arranged inside the spring groove, and the second spring is connected to the inner arc side of the arc plate.

[0013] Preferably, the heat dissipation component includes a casing arranged in a placement groove of the receiving device body, a fan is arranged inside the casing, the outer side of the fan is fixedly connected to the casing through a plurality of mounting plates distributed in a circular array, and a filter is arranged at one end of the casing.

[0014] Preferably, an outer cover is fixed to the other end of the casing by bolts, the peripheral side of the outer cover is fixed to the back of the receiving device body by extension plates and bolts, and a plurality of equally spaced grids are arranged in the middle of the outer cover.

[0015] Preferably, the filter element includes a bonding plate bonded to one end of the casing, a filter plate is inlaid in the middle of the bonding plate, one side edge of the bonding plate is connected to the casing by magnetic attraction, an annular plate is provided on one side edge of the filter plate, the annular plate is fixed on one side of the bonding plate, and the annular plate is bonded to the inner wall of the casing, a sealing ring is provided on the outer side of the annular plate, and the sealing ring is bonded to one side of the bonding plate.

[0016] Beneficial Effects

[0017] The utility model provides a signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The signal debugging receiving device of the instrumentation and control system of the nuclear power plant steam turbine is provided with a connector sleeve on the outside of the power-on slot of the receiving device body. The connector sleeve cooperates with the limiting component thereon to limit the connecting wire inserted into the power-on slot, thereby improving the stability of the connection of the connecting wire. At the same time, the limiting plate is limited by the movable plate, so that the connecting wire can be pulled out with one hand when it needs to be pulled out, thereby meeting the demand of pulling out the wire with one hand.

[0019] 2. The signal debugging receiving device of the instrumentation and control system of the steam turbine of the nuclear power plant is provided with a heat dissipation component on the back of the receiving device body. The fan on the heat dissipation component plays a role in ventilation and heat dissipation. The outer cover cooperates with the grille thereon to protect the fan blades and avoid accidental touch by personnel. The outer cover is set as a detachable structure, so that the fan is easy to disassemble, repair and replace. The filter element on the casing plays a role in filtering dust to prevent dust from entering the inside of the receiving device body. At the same time, the filter element is connected by magnetic attraction and is set as a disassembly structure, so that the filter plate on the filter element is easy to disassemble and clean, thereby ensuring the heat dissipation effect of the heat dissipation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0022] Figure 3 This is a schematic diagram of the joint sleeve structure of the utility model;

[0023] Figure 4 This is a schematic diagram of the casing structure of the utility model;

[0024] Figure 5 This is a schematic diagram of the outer cover structure of the utility model;

[0025] Figure 6 This is a schematic diagram of the filter structure of the utility model.

[0026] In the figure: receiving device body 1, connector sleeve 11, connecting line 2, limit assembly 3, movable plate 31, first spring 32, through groove 33, limit plate 34, arc plate 35, spring groove 36, second spring 37, heat dissipation assembly 4, casing 41, fan 42, mounting plate 43, filter element 44, fitting plate 441, filter plate 442, annular plate 443, sealing ring 444, outer cover 45, grille 46. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] The utility model provides two technical solutions:

[0029] Figure 1-3The first embodiment is shown: a signal debugging receiving device for an instrumentation and control system of a nuclear power plant steam turbine, comprising:

[0030] A receiving device body 1, a connector sleeve 11 is arranged outside a power supply slot at one end of the back side of the receiving device body 1, and the connector sleeve 11 is arranged as an annular cylindrical structure;

[0031] A connecting wire 2, one end of which is inserted into the power supply slot on the receiving device body 1 and passes through the connector sleeve 11;

[0032] The limiting component 3 is arranged in the connector sleeve 11 and is used to limit the connection line 2 in the connector sleeve 11. The limiting component 3 includes a movable plate 31 sleeved on the outside of the connector sleeve 11. The movable plate 31 is arranged in an annular structure. One end of the movable plate 31 is connected to the receiving device body 1 through a first spring 32. The setting of the first spring 32 enables the movable plate 31 to automatically reset. A plurality of through grooves 33 distributed in an annular array are provided on the peripheral side of the end of the connector sleeve 11. The limiting plate 34 is connected through the through groove 33. The limiting plate 34 can connect the connection line 2 to the connector sleeve 11. The plug of the wiring 2 is limited in the connector sleeve 11, and an arc plate 35 is fixed to one end of the limit plate 34. The movable plate 31 can limit the arc plate 35 when resetting, and then limit the limit plate 34, and the limit plate 34 is reset so that the limit plate 34 maintains the limiting effect. Spring grooves 36 are provided on both sides of the opening at one end of the through groove 33, and a second spring 37 is provided inside the spring groove 36. The second spring 37 is connected to the inner arc side of the arc plate 35. The setting of the second spring 37 enables the limit plate 34 to automatically reset and release the limit of the connecting line 2.

[0033] Figure 1 and 4-6 shows a second embodiment, which is mainly different from the first embodiment in that it includes a heat dissipation component 4, which is arranged in a placement groove at the other end of the back side of the receiving device body 1, and is used to dissipate the heat of the inner cavity of the receiving device body. The heat dissipation component 4 includes a casing 41 arranged in the placement groove of the receiving device body 1, and a fan 42 is arranged inside the casing 41. The outer side of the fan 42 is fixedly connected to the casing 41 through a plurality of mounting plates 43 distributed in a circular array, and the fan 42 can dissipate the heat of the inner cavity of the receiving device body 1. A filter element 44 is arranged at one end of the casing 41, and the filter element 44 plays a role in filtering dust. The other end of the casing 41 is fixed with an outer cover 45 by bolts, and the peripheral side of the outer cover 45 is fixed to the back side of the receiving device body 1 by extension plates and bolts, and the middle part of the outer cover 45 is provided with a plurality of equally spaced The distributed grille 46 has a barrier effect on the blades of the fan 42. On the one hand, it prevents the blades from being damaged, and on the other hand, it prevents people from being injured by accidental touch. The filter element 44 includes a fitting plate 441 fitted on one end of the casing 41, and a filter plate 442 is inlaid in the middle of the fitting plate 441. The filter plate 442 plays a role in filtering dust in the air. One side edge of the fitting plate 441 is connected to the casing 41 by magnetic attraction, so that the filter plate 442 is easy to disassemble and clean. An annular plate 443 is provided on one side edge of the filter plate 442. The annular plate 443 is fixed on one side of the fitting plate 441, and the annular plate 443 is fitted with the inner wall of the casing 41. A sealing ring 444 is provided on the outer side of the annular plate 443. The sealing ring 444 is bonded to one side of the fitting plate 441. The setting of the sealing ring 444 plays a sealing role.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0035] When in use, first insert the plug on the connecting line 2 into the power-on slot on the receiving device body 1, and then push the multiple arc plates 35 at the same time until the arc plates 35 contact the outer side of the connector sleeve 11. At this time, the limit plate 34 is connected to the arc plate 35 to limit the plug of the connecting line 2. At this time, the movable plate 31 is reset under the action of the first spring 32, and the multiple arc plates 35 are limited, and then the limit plate 34 is limited, so that the limit plate 34 can stably limit the plug of the connecting line 2. When the connecting line 2 needs to be pulled out, press The movable plate 31 is moved until the movable plate 31 releases the limit of the arc plate 35. At this time, the arc plate 35 is reset under the action of the second spring 37, driving the limit plate 34 to release the limit of the plug on the connecting line 2. At this time, the connecting line 2 can be pulled out. When it is necessary to clean the filter plate 442 or inspect the fan 42, the bolts on the outer cover 45 are removed, and then the fan 42 is moved out of the placement slot on the receiving device body 1 through the outer cover 45. At this time, the fan 42 can be inspected and the filter plate 442 on the filter element 44 can be removed for cleaning.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine, characterized in that ,include: A receiving device body, wherein a connector sleeve is provided outside the power supply slot at one end of the back side of the receiving device body; A connecting wire, one end of which is inserted into the power supply slot on the receiving device body and passes through the connector sleeve; A limiting component, which is arranged in the connector sleeve and is used to limit the connection line in the connector sleeve; The heat dissipation component is arranged in the placement groove at the other end of the back side of the receiving device body, and is used to dissipate heat from the inner cavity of the receiving device body.

2. The signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine according to claim 1, characterized in that: The limiting assembly comprises a movable plate sleeved on the outside of the joint sleeve, the movable plate is arranged as an annular structure, and one end of the movable plate is connected to the receiving device body through a first spring.

3. The signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine according to claim 1, characterized in that: A plurality of through grooves distributed in a circular array are provided on the circumferential side of the end of the joint sleeve, a limiting plate is connected through the through groove, an arc plate is fixed at one end of the limiting plate, spring grooves are provided on both sides of the opening of one end of the through groove, a second spring is arranged inside the spring groove, and the second spring is connected to the inner arc side of the arc plate.

4. The signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine according to claim 1, characterized in that: The heat dissipation component includes a casing arranged in a receiving device body placement slot, a fan is arranged inside the casing, the outer side of the fan is fixedly connected to the casing through a plurality of mounting plates distributed in a circular array, and a filter is arranged at one end of the casing.

5. The signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine according to claim 4, characterized in that: The other end of the housing is fixed with an outer cover by bolts, the peripheral side of the outer cover is fixed to the back of the receiving device body by extension plates and bolts, and a plurality of equally spaced grids are arranged in the middle of the outer cover.

6. The signal debugging receiving device for the instrumentation and control system of a nuclear power plant steam turbine according to claim 4, characterized in that: The filter element includes a bonding plate bonded to one end of the casing, a filter plate is inlaid in the middle of the bonding plate, one side edge of the bonding plate is connected to the casing by magnetic attraction, an annular plate is provided on one side edge of the filter plate, the annular plate is fixed on one side of the bonding plate, and the annular plate is bonded to the inner wall of the casing, a sealing ring is provided on the outer side of the annular plate, and the sealing ring is bonded to one side of the bonding plate.

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