Torque power assisting device for nuclear power instrument valve
By designing the torque assist device for nuclear power instrument valves, the torque assist component and connecting components are used to realize the power switch of the nuclear power instrument valve, which solves the problem of insufficient driving torque during the opening and closing of the instrument valve, reduces hand damage and operation errors, and improves operation ease and safety.
Patent Information
- Application Number
- CN202421992492.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the instrument calibration process of nuclear power plant, the resistance torque that needs to be overcome during the opening and closing of the instrument valve changes greatly, resulting in insufficient driving torque, unable to complete the opening and closing operation smoothly, and long-term operation leads to hand joint damage.
A torque assist device for nuclear power instrument valve is designed, including a connecting component, a sleeve and a torque wrench. The power switch of nuclear power instrument valve is realized through the torque assist component and the connection component, and the torque control of the torque of the switching valve is automatically controlled.
It reduces hand damage caused by insufficient force when manually operating the valve, realizes automatic control of the torque of the valve opening and closing, reduces the damage to the instrument and isolation failure caused by inadequate valve operation, and makes the operation easier and faster, reducing the risk of physical damage to the hand.
Smart Images
Figure CN222963439U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of valves, in particular to a torque boosting device for nuclear power instrument valves. Background Technique
[0002] At present, there are a large number of instrument calibration works in domestic nuclear power plants, and instrument matching valve groups are widely used. During the instrument calibration process, the operations on the instrument valves include isolating the instrument, opening the balance valve, putting the instrument into operation, flushing and exhausting air, etc., and the instrument valve group needs to be repeatedly operated.
[0003] During the opening and closing process of the valve, the resistance torque to be overcome varies within a certain range. It is necessary to make the driving torque greater than or equal to the maximum resistance torque during the opening and closing process of the valve to successfully complete the opening and closing operation. If the provided driving torque is less than the maximum resistance torque to be overcome, the opening and closing operation of the valve cannot be completed.
[0004] Instrument valves are generally made of stainless steel. Due to the sealing requirements, the packing of the instrument valves will be very tight, resulting in a large torque for opening and closing the instrument valves. It is difficult to operate the instrument valves manually, and it will damage the hand joints after long-term work. If the closing torque is too large, it will be very difficult to open the valve. If the torque is too small during closing, problems such as poor sealing of the valve will occur. Content of the Utility Model
[0005] The purpose of the utility model is to provide a torque boosting device for nuclear power instrument valves. The torque boosting device realizes the requirements of boosting and torque control for opening and closing the nuclear power instrument valve by using a torque boosting component and a connecting component.
[0006] The purpose of the utility model can be achieved by the following technical solutions:
[0007] A torque boosting device for nuclear power instrument valves, comprising a connecting component, a sleeve and a torque wrench,
[0008] The bottom end of the connecting component is used to connect with the nuclear power instrument valve. The top end of the connecting component is provided with a sleeve, and the top end of the sleeve is connected with the torque wrench. The torque wrench controls the opening and closing of the nuclear power instrument valve through the connecting component.
[0009] In an embodiment of the utility model, the bottom end of the connecting component is provided with a slot, the top end of the connecting component is provided with a connecting head, and the bottom end of the sleeve is provided with a first groove, and the first groove is adapted to the connecting head.
[0010] In an embodiment of the utility model, the cross-section of the slot is rectangular.
[0011] In an embodiment of the utility model, the cross-sections of the first groove and the connecting head are both regular hexagons.
[0012] In the present utility model, a stainless - steel cylinder is used as the main body for manufacturing the connecting component. One end is processed to form a rectangular groove, which can be used as the groove for inserting the valve handle, and the other end is processed to form a 9 / 16 - inch hexagon, which can be used as the connecting head of the torque - assisting component.
[0013] In an embodiment of the present utility model, a second groove is provided at the top end of the sleeve, and a fixing block is provided at the bottom end of the torque wrench. The second groove is adapted to the fixing block.
[0014] In an embodiment of the present utility model, the cross - sections of both the second groove and the fixing block are square.
[0015] In an embodiment of the present utility model, the torque wrench is composed of a connected rotating handle and a connecting block.
[0016] In an embodiment of the present utility model, a fixing block is provided at the bottom end of the connecting block.
[0017] In an embodiment of the present utility model, the connecting component, the sleeve, and the torque wrench are all made of stainless steel.
[0018] As a preferred technical solution, the stainless - steel material is 304 or 316.
[0019] In an embodiment of the present utility model, a valve handle is provided on the nuclear power instrument valve, and the valve handle is adapted to the slot.
[0020] As a preferred technical solution, the torque wrench is a 35 Nm torque wrench.
[0021] The rotating handle is connected to the crank.
[0022] Compared with the prior art, the present utility model has the following beneficial effects:
[0023] Through the design of the torque - assisting component, the present utility model reduces hand injuries caused by insufficient strength when manually operating the valve; through torque control, it realizes automatic control of the torque for opening and closing the valve, reducing accidents such as damage to the instrument and isolation failure caused by insufficient valve opening and closing torque; the hand - cranked handle design makes the operation of the instrument valve simpler and faster, and reduces the risk of physical hand injuries caused by careless operation; the adjustable - torque design can operate various types of valves; the external - hexagon design of the connecting component can be operated using a variety of tools (box wrenches, socket wrenches, pipe pliers, etc.).
[0024] The utility model is designed to be used in combination with a torque wrench and a ratchet wrench. In this application, the machining dimensions of the grooves of the socket are consistent with the connecting heads of the valve handles, so the fitting clearance is very small and thus it will not fall off. Description of the Drawings
[0025] Figure 1 It is a schematic structural diagram of the torque assisting device for nuclear power instrument valves in the utility model;
[0026] Figure 2 It is a top view of the socket in the utility model;
[0027] Description of the reference numerals in the drawings: 1. Valve handle, 2. Connecting component, 3. Socket, 4. Torque wrench. Detailed Description of the Embodiment
[0028] The utility model will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the utility model, and the detailed implementation manners and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the utility model, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0031] In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the utility model can be understood according to specific situations.
[0032] The following will describe in detail some embodiments of the present utility model in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.
[0033] Embodiment 1
[0034] Refer to Figures 1 to 2 , this embodiment provides a torque assistance device for a nuclear power instrument valve, including a connection component 2, a sleeve 3 and a torque wrench 4.
[0035] The bottom end of the connection component 2 is used to connect with the nuclear power instrument valve. The top end of the connection component 2 is provided with a sleeve 3. The top end of the sleeve 3 is connected to the torque wrench 4. The torque wrench 4 controls the opening and closing of the nuclear power instrument valve through the connection component 2.
[0036] In this embodiment, the bottom end of the connection component 2 is provided with a slot, the top end of the connection component 2 is provided with a connection head, the bottom end of the sleeve 3 is provided with a first groove, and the first groove is adapted to the connection head.
[0037] In this embodiment, the cross-section of the slot is rectangular.
[0038] In this embodiment, the cross-sections of both the first groove and the connection head are regular hexagons.
[0039] In this embodiment, the top end of the sleeve 3 is provided with a second groove, the bottom end of the torque wrench 4 is provided with a fixing block, and the second groove is adapted to the fixing block.
[0040] In this embodiment, the cross-sections of both the second groove and the fixing block are square.
[0041] In this embodiment, the torque wrench 4 is composed of a connected rotating handle and a connection block.
[0042] In this embodiment, the bottom end of the connection block is provided with a fixing block.
[0043] In this embodiment, the connection component 2, the sleeve 3 and the torque wrench 4 are all made of stainless steel.
[0044] In this embodiment, a valve handle 1 is provided on the nuclear power instrument valve, and the valve handle 1 is adapted to the slot.
[0045] The above description of the embodiments is to enable those of ordinary skill in the art to understand and use the utility model. It is obvious that those skilled in the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative efforts. Therefore, the utility model is not limited to the above embodiments, and all improvements and modifications made by those skilled in the art without departing from the scope of the utility model according to the disclosure of the utility model should be within the protection scope of the utility model.
Claims
1. A torque booster for a nuclear power instrument valve, characterized in that: It comprises a connecting assembly (2), a sleeve (3) and a torque wrench (4). The bottom end of the connection component (2) is used to connect with a nuclear power instrument valve, and the top end of the connection component (2) is provided with a sleeve (3). The top end of the sleeve (3) is connected to a torque wrench (4), and the torque wrench (4) switches the nuclear power instrument valve by controlling the connection component (2).
2. A torque booster for a nuclear power instrument valve according to claim 1, characterized in that: The bottom end of the connecting component (2) is provided with a slot, the top end of the connecting component (2) is provided with a connecting head, and the bottom end of the sleeve (3) is provided with a first groove, and the first groove is adapted to the connecting head.
3. A torque booster device for a nuclear power instrument valve according to claim 2, characterized in that: The cross section of the slot is rectangular.
4. A torque booster for a nuclear power instrument valve according to claim 2, characterized in that: The cross sections of the first groove and the connector are both regular hexagonal.
5. The torque booster device for a nuclear power instrument valve according to claim 1, characterized in that: The top end of the sleeve (3) is provided with a second groove, and the bottom end of the torque wrench (4) is provided with a fixing block, and the second groove is adapted to the fixing block.
6. A torque booster for a nuclear power instrument valve according to claim 5, characterized in that: The cross sections of the second groove and the fixing block are both square.
7. The torque booster device for a nuclear power instrument valve according to claim 5, characterized in that: The torque wrench (4) consists of a connected rotating handle and a connecting block.
8. The torque booster device for a nuclear power instrument valve according to claim 7, characterized in that: A fixing block is arranged at the bottom end of the connecting block.
9. A torque booster for a nuclear power instrument valve according to claim 8, characterized in that: The connecting assembly (2), sleeve (3) and torque wrench (4) are all made of stainless steel.
10. The torque booster device for a nuclear power instrument valve according to claim 1, characterized in that: The nuclear power instrument valve is provided with a valve handle (1), and the valve handle (1) is adapted to the slot.