A nuclear power plant circulating water filtration system alarm simulation device

Abstract

The utility model belongs to nuclear power equipment field discloses a kind of nuclear power plant circulating water filtration system alarm simulation device.The device described in the utility model, including support mechanism, and the direction adjusting mechanism, alarm trigger mechanism are connected in turn from bottom to top on support mechanism;The alarm trigger mechanism includes hollow structure's mechanical arm, part stretches into the pull rod of mechanical arm, the connecting rod in mechanical arm and the trigger assembly at the front end of mechanical arm;The middle part of the pull rod is hinged with mechanical arm;One end in the pull rod in mechanical arm is hinged with one end of connecting rod;The other end of connecting rod is connected with trigger assembly;The alarm trigger mechanism is driven trigger assembly to push forward by pulling pull rod backward, and the triggering of the alarm signal of nuclear power plant circulating water filtration system is realized.The utility model simplifies nuclear power plant circulating water filtration system alarm simulation work by mechanical structure, reduces personal accidental risk, improves work safety, improves work quality.

Description

Technical Field

[0001] This utility model belongs to the field of nuclear power equipment, and specifically relates to an alarm simulation device for a circulating water filtration system in a nuclear power plant. Background Technology

[0002] The normal operation of a nuclear power plant requires the precise coordination of many systems and equipment. Among them, the circulating water filtration system provides the final cooling source. Its function is to purify seawater through filtration and other means, and then supply it to other systems and equipment in the nuclear power plant for cooling, preventing accidents such as equipment burnout and reactor core nuclear fuel burnout. It can be said that the circulating water filtration system is one of the most important safety guarantees of a nuclear power plant. According to design specifications, the requirements of the Nuclear Safety Administration, and relevant laws and regulations, the alarm signals in the circulating water filtration system need to be verified at specified time intervals to ensure that it can complete the designed automatic actions.

[0003] In current daily operations, due to the lack of specialized tools, simulating alarms in nuclear power plant circulating water filtration systems requires manual intervention from a high position to trigger the corresponding limit switches. This is challenging and risky because the equipment is located near the sea and at a high elevation. For example, there is a risk of falls or accidental contact, or the need to maintain the limit switches for extended periods can lead to signal interruptions due to the difficulty of maintaining the signal manually. Utility Model Content

[0004] In view of the technical problems existing in the prior art, the purpose of this utility model is to provide an alarm simulation device for a nuclear power plant circulating water filtration system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An alarm simulation device for a circulating water filtration system in a nuclear power plant includes a support mechanism, and a direction adjustment mechanism and an alarm triggering mechanism connected sequentially from bottom to top on the support mechanism.

[0007] The alarm triggering mechanism includes a hollow robotic arm, a pull rod partially extending into the robotic arm, a connecting rod placed in the robotic arm, and a triggering component at the front end of the robotic arm; the middle part of the pull rod is hinged to the robotic arm; one end of the pull rod inside the robotic arm is hinged to one end of the connecting rod; the other end of the connecting rod is connected to the triggering component.

[0008] The alarm triggering mechanism triggers the alarm signal of the nuclear power plant's circulating water filtration system by pulling the lever backward, which in turn pushes the triggering component forward.

[0009] Furthermore, the support mechanism includes a support rod and a support platform connected to the support rod; the end of the support rod that contacts the ground is conical.

[0010] Furthermore, the direction adjustment mechanism includes a horizontal adjustment mechanism and a vertical adjustment mechanism.

[0011] Furthermore, the horizontal adjustment mechanism includes a base connected to the support mechanism, a horizontal rotating shaft, and a horizontal fixing knob located on the side of the base; the base is provided with a groove adapted to the size of the horizontal rotating shaft; the horizontal rotating shaft is placed in the groove and is movably connected to the base; the horizontal fixing knob is screwed into the base to abut against the side of the horizontal rotating shaft to fix the horizontal rotating shaft.

[0012] Furthermore, the vertical adjustment mechanism includes a vertical adjustment shaft connected to the horizontal rotating shaft, and a vertical fixing knob connecting the horizontal rotating shaft and the vertical adjustment shaft; the upper surface of the vertical adjustment shaft is connected to the lower surface of the robotic arm.

[0013] Furthermore, the robotic arm has a cylindrical structure, and the upper surface of the robotic arm has holes that are adapted to the pull rod.

[0014] Furthermore, a counterweight assembly is connected to the end of the robotic arm.

[0015] Furthermore, the horizontal rotating shaft has a cylindrical structure.

[0016] Furthermore, the support rod is a telescopic support rod.

[0017] Furthermore, the triggering component is a structure that matches the limit switch of the nuclear power plant circulating water filtration system alarm; the surface of the triggering component is provided with a rubber layer or a plastic layer.

[0018] The following are the beneficial effects of implementing this utility model:

[0019] Due to the unique design of nuclear power plants, this work is a necessary and periodic task. Applying the alarm simulation device for the nuclear power plant circulating water filtration system of this utility model can greatly facilitate the execution of alarm simulation work and reduce various risks and safety hazards.

[0020] This invention simplifies the alarm simulation work of the circulating water filtration system in nuclear power plants through mechanical structure, reduces the risk of personal injury, improves work safety, and enhances work quality. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the alarm simulation device for the circulating water filtration system in a nuclear power plant.

[0022] Figure 2 This is a schematic diagram of the alarm triggering mechanism.

[0023] Figure 3 This is a schematic diagram of the horizontal adjustment mechanism.

[0024] Wherein: 1-Support rod; 2-Support platform; 3-Base; 4-Horizontal fixing knob; 5-Horizontal rotating shaft; 6-Vertical adjustment shaft; 7-Vertical fixing knob; 8-Pull rod; 9-Mechanical arm; 10-Trigger component; 11-Counterweight component; 12-Connecting rod. Detailed Implementation

[0025] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this utility model and do not indicate that the device or element referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0026] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are used only for the convenience of describing this utility model and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0027] In the following embodiments, the front and back of the alarm simulation device for the nuclear power plant circulating water filtration system are: the end closer to the nuclear power plant circulating water filtration system is the front, and the end farther away from the nuclear power plant circulating water filtration system is the back.

[0028] Example 1

[0029] like Figures 1-3As shown, this embodiment provides an alarm simulation device for a nuclear power plant circulating water filtration system, including a support mechanism and a direction adjustment mechanism and an alarm triggering mechanism connected sequentially from bottom to top on the support mechanism. The alarm triggering mechanism includes a hollow robotic arm 9, a pull rod 8 partially extending into the robotic arm 9, a connecting rod 12 placed in the robotic arm 9, and a triggering component 10 located at the front end of the robotic arm 9. The middle part of the pull rod 8 is hinged to the robotic arm 9. One end of the pull rod 8 inside the robotic arm 9 is hinged to one end of the connecting rod 12. The other end of the connecting rod 12 is connected to the triggering component 10. The alarm triggering mechanism triggers the alarm signal of the nuclear power plant circulating water filtration system by pulling the pull rod 8 backward, which in turn pushes the triggering component 10 forward. The end of the pull rod 8 protruding from the robotic arm 9 is provided with an anti-slip pattern for easy operation.

[0030] In some embodiments, the support mechanism includes a support rod 1 and a support platform 2 connected to the support rod 1; the end of the support rod 1 that contacts the ground is conical; the support rod 1 is a telescopic support rod. The support mechanism includes three support rods 1, each of which can be independently adjusted in length to adapt to different terrains; the ends of the support rods 1 converge to form a conical shape for anti-slip purposes.

[0031] In some embodiments, the direction adjustment mechanism includes a horizontal adjustment mechanism and a vertical adjustment mechanism.

[0032] Furthermore, the horizontal adjustment mechanism includes a base 3 connected to the support mechanism, a horizontal rotating shaft 5, and a horizontal fixing knob 4 located on the side of the base. The base 3 has a groove that matches the size of the horizontal rotating shaft 5. The horizontal rotating shaft 5 is placed in the groove and is movably connected to the base 3. The horizontal fixing knob 4 is screwed into the base 3 and abuts against the side of the horizontal rotating shaft 5 to fix the horizontal rotating shaft 5. The horizontal rotating shaft 5 has a cylindrical structure. The horizontal fixing knob 4 has an anti-slip pattern for easy operation. Specifically, when the horizontal rotating shaft 5 is inserted into the groove, an appropriate amount of high-viscosity damping grease is added to provide suitable damping force. The horizontal fixing knob 4 is screwed in from the side of the base and abuts against the side of the horizontal rotating shaft 5 to achieve the fixing effect. Furthermore, the horizontal fixing knob 4 can be divided into two parts: a knob and a screw. The screw is located inside the base. After the knob is screwed into the base, one end of the knob abuts against the end of the screw, and the internal screw is screwed in until the other end of the screw abuts against the side of the horizontal rotating shaft 5, thus achieving the fixing operation.

[0033] Furthermore, the vertical adjustment mechanism includes a vertical adjustment shaft 6 connected to the horizontal rotating shaft 5, and a vertical fixing knob 7 connecting the horizontal rotating shaft 5 and the vertical adjustment shaft 6; the upper surface of the vertical adjustment shaft 6 is connected to the lower surface of the robotic arm 9. The vertical fixing knob 7 has an anti-slip pattern for easy operation. The vertical adjustment shaft 6 and the robotic arm 9 are fixedly connected, and the two can be integrally machined. The contact surfaces of the horizontal rotating shaft 5 and the vertical adjustment shaft 6 are provided with an anti-slip pattern, providing sufficient friction when the vertical fixing knob 7 is tightened to achieve the fixing purpose.

[0034] In some embodiments, the robotic arm 9 has a cylindrical structure, and the upper surface of the robotic arm 9 has a hole adapted to the pull rod 8; the end of the robotic arm 9 is connected to a counterweight assembly 11, wherein the end of the robotic arm 9 is the rear end of the robotic arm 9, and the weight of the counterweight assembly 11 is sufficient to make the robotic arm 9 reach a balanced state; the trigger assembly 10 is a structure that matches the limit switch of the alarm of the nuclear power plant circulating water filtration system; the surface of the trigger assembly 10 is provided with a rubber layer or a plastic layer; further, the trigger assembly 10 is a fork.

[0035] All of the rotating components are provided with appropriate damping for easy adjustment.

[0036] When using the alarm simulation device for the nuclear power plant circulating water filtration system of this utility model, first adjust the three telescopic support rods 1 to a suitable length and angle, and place them stably on the ground at an appropriate distance from the corresponding limit switch of the nuclear power plant circulating water filtration system. Loosen the horizontal fixing knob 4, rotate the horizontal shaft 5 on the base 3 to make the horizontal direction of the robotic arm 9 appropriate, tighten the horizontal fixing knob 4, loosen the vertical fixing knob 7, and adjust the vertical adjustment shaft 6 to make the height of the robotic arm 9 appropriate. At this time, the trigger component 10 is close to the corresponding limit switch of the nuclear power plant circulating water filtration system. Tighten the vertical fixing knob 7. At this time, the device has been adjusted. According to the instruction, manually pull the lever 8 backward. The trigger component 10 of the device will extend forward and push the corresponding limit switch of the nuclear power plant circulating water filtration system to trigger the corresponding alarm signal. Continue to pull backward until it is confirmed that the automatic operation of the nuclear power plant circulating water filtration system has been completed. Then push the lever 8 forward to reset the trigger component 10. During the process, whether pulling backward, pushing forward, or maintaining the position of the lever, all operations are manually controlled to ensure that the signal triggering can be controlled at any time. Depending on the actual situation on site, this process will not take long, as the torque adjustment of lever 8 requires relatively little force to operate, which can be completed manually. After completing the work, the alarm simulation device for the nuclear power plant's circulating water filtration system is removed. The triggering component 10 is a fork.

[0037] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present utility model should fall within the scope of the claims of the present utility model.

Claims

1. An alarm simulation device for a nuclear power plant circulating water filtration system, characterized in that: It includes a support mechanism, and a direction adjustment mechanism and an alarm triggering mechanism connected sequentially from bottom to top on the support mechanism; The alarm triggering mechanism includes a hollow robotic arm, a pull rod partially extending into the robotic arm, a connecting rod placed in the robotic arm, and a triggering component at the front end of the robotic arm; the middle part of the pull rod is hinged to the robotic arm; one end of the pull rod inside the robotic arm is hinged to one end of the connecting rod; the other end of the connecting rod is connected to the triggering component. The alarm triggering mechanism triggers the alarm signal of the nuclear power plant's circulating water filtration system by pulling the lever backward, which in turn pushes the triggering component forward.

2. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 1, characterized in that: The support mechanism includes a support rod and a support platform connected to the support rod; the end of the support rod that contacts the ground is conical.

3. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 1, characterized in that: The direction adjustment mechanism includes a horizontal adjustment mechanism and a vertical adjustment mechanism.

4. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 3, characterized in that: The horizontal adjustment mechanism includes a base connected to the support mechanism, a horizontal rotating shaft, and a horizontal fixing knob located on the side of the base; the base is provided with a groove that matches the size of the horizontal rotating shaft; the horizontal rotating shaft is placed in the groove and is movably connected to the base; the horizontal fixing knob is screwed into the base to abut against the side of the horizontal rotating shaft to fix the horizontal rotating shaft.

5. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 4, characterized in that: The vertical adjustment mechanism includes a vertical adjustment shaft connected to a horizontal rotating shaft, and a vertical fixing knob connecting the horizontal rotating shaft and the vertical adjustment shaft; the upper surface of the vertical adjustment shaft is connected to the lower surface of the robotic arm.

6. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 1, characterized in that: The robotic arm has a cylindrical structure, and the upper surface of the robotic arm has holes that are adapted to the pull rod.

7. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 1, characterized in that: The end of the robotic arm is connected to a counterweight assembly.

8. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 4, characterized in that: The horizontal rotating shaft has a cylindrical structure.

9. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 2, characterized in that: The support rod is a telescopic support rod.

10. The alarm simulation device for a nuclear power plant circulating water filtration system according to claim 1, characterized in that: The triggering component is a structure that matches the limit switch of the alarm in the circulating water filtration system of a nuclear power plant; the surface of the triggering component is provided with a rubber layer or a plastic layer.

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