A vortex induction precision temperature control heating device for natural gas valve

Abstract

The utility model discloses a kind of vortex induction precision temperature control heating devices for natural gas valve belongs to natural gas valve technical field, aiming at the problem of heating liquid flow low heating efficiency and bolt connection installation and disassembly work intensity in the technology, including valve body, the valve body both sides are fixedly connected with conveying pipeline, two The top of conveying pipeline is provided with fixed mechanism, the utility model is matched with power box and induction coil by setting, induction coil generates alternating magnetic field under the power supply effect of power box, using eddy current induction principle directly to natural gas valve body heating, compared with the mode of heat transfer by heating liquid flow in prior art, vortex induction heating does not need intermediate medium to transfer heat, heat directly acts on valve, heat conduction efficiency is higher, can quickly transfer heat to valve interior, shorten heating time, effectively solve the problem of low heating efficiency of traditional heating liquid flow.

Description

Technical Field

[0001] This utility model belongs to the field of natural gas valve technology, specifically relating to an eddy current induction precision temperature control heating device for natural gas valves. Background Technology

[0002] In natural gas transmission and distribution systems, valves, as important components for controlling the flow of natural gas, often need to be kept in cold environments to ensure their normal operation. However, at low temperatures, natural gas valves may experience reduced sealing performance, operational difficulties, or even freezing. Therefore, heating and insulation of valves has become an important aspect of ensuring the safe and stable operation of natural gas pipeline systems.

[0003] The prior art patent publication number CN222543184U describes a leak-proof natural gas antifreeze valve. This patent includes a valve pipe, a base, a heating box, and a heating mechanism. The heating box is installed on top of the base and below the valve pipe. A valve stem is installed in the middle of the top surface of the valve pipe. The heating mechanism is symmetrically installed on the valve pipe and includes an upper heating plate, a lower heating plate, a return ring, a guide ring, an upper guide plate, and a lower guide plate. The upper and lower heating plates are both arc-shaped structures and are alternately installed on the surface of the valve pipe. The return ring is installed at the end of the valve pipe and connected to both the upper and lower heating plates. The guide ring is installed on the top of the valve pipe and sleeved on... The valve stem and both sides of the guide ring are connected to the upper guide plate. The device has a heating box below the valve tube, which can heat the valve tube, valve core and valve stem to solve the problem of valve freezing in cold weather. However, in actual use, there are still the following shortcomings: From a practical point of view, the device heats the valve by the flow of heating liquid. The heat conduction efficiency of the liquid is low, and it takes a long time to transfer heat to the inside of the valve, resulting in low heating efficiency. At the same time, the device uses multiple bolts and nuts to install the control device on the outer wall of the valve body. The bolt installation requires specific tools, making installation and disassembly more troublesome and increasing the difficulty of on-site installation.

[0004] Therefore, there is a need for an eddy current induction precision temperature control heating device for natural gas valves to solve the problems of low heating efficiency of the heating liquid flow on the valve and high labor intensity of bolt connection installation and disassembly in the existing technology. Utility Model Content

[0005] The purpose of this invention is to provide an eddy current induction precision temperature control heating device for natural gas valves, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an eddy current induction precision temperature control heating device for natural gas valves, comprising a valve body, with conveying pipes fixedly connected to both sides of the valve body, a fixing mechanism provided at the top of each of the two conveying pipes, a protective cover fixedly connected to the top of each of the two fixing mechanisms, two second guide rods fixedly connected to the lower surface of the top of the protective cover, an mounting plate slidably connected to the outer wall of each of the two second guide rods, two electric telescopic rods fixedly connected to the lower surface of the top of the protective cover, a power supply box fixedly connected to the top of the mounting plate, and an induction coil corresponding to the power supply box fixedly connected to the bottom of the mounting plate.

[0007] It should be noted in the solution that the fixing mechanism includes a convex frame, a threaded rod rotatably connected to the top of the convex frame, a handle fixedly connected to the top of the threaded rod, a trapezoidal push block rotatably connected to the bottom of the threaded rod, two first guide rods fixedly connected to the top of the trapezoidal push block, a first arc-shaped clamping plate installed at the bottom of the trapezoidal push block, two connecting ears fixedly connected to the inner walls of the front and rear ends of the convex frame, a sleeve rotatably connected between each pair of corresponding connecting ears, a first connecting rod fixedly connected to the top of each of the two sleeves, a guide wheel rotatably installed at the inner end of each of the two first connecting rods, a second connecting rod fixedly connected to the bottom of each of the two sleeves, and a second arc-shaped clamping plate installed at the inner end of each of the two second connecting rods.

[0008] It is worth noting that the top of the convex frame is provided with a threaded groove corresponding to the threaded rod and an opening corresponding to the first guide rod.

[0009] It should be further noted that both guide wheels roll and adhere to the outer wall of the trapezoidal push block.

[0010] In a preferred embodiment, both the first arc-shaped clamp and the second arc-shaped clamp are installed via universal joints, and anti-slip pads are fixedly connected to the inner walls of both the first arc-shaped clamp and the second arc-shaped clamp.

[0011] In a preferred embodiment, the bottom of both of the electric telescopic rods is fixedly connected to the top of the mounting plate.

[0012] In a preferred embodiment, a temperature sensor and a controller are installed inside the power supply box.

[0013] Compared with the prior art, the eddy current induction precision temperature control heating device for natural gas valves provided by this utility model has at least the following beneficial effects:

[0014] (1) By setting up a power supply box and an induction coil to work together, the induction coil generates an alternating magnetic field under the power supply of the power supply box. The eddy current induction principle is used to directly heat the natural gas valve body. Compared with the existing technology of heat transfer through the flow of heating liquid, eddy current induction heating does not require an intermediate medium to transfer heat. The heat is directly applied to the valve, and the heat transfer efficiency is higher. It can quickly transfer heat to the inside of the valve, shorten the heating time, and effectively solve the problem of low efficiency of traditional heating liquid flow heating.

[0015] (2) By setting up a fixing mechanism, the fixing mechanism, through the cooperation of threaded rod, trapezoidal push block, connecting rod and arc-shaped clamping plate, only needs to turn the handle to drive the threaded rod, which can drive the trapezoidal push block to move down, and drive the first connecting rod and the second connecting rod to rotate through the guide wheel, so that the first arc-shaped clamping plate and the second arc-shaped clamping plate can clamp the conveying pipe synchronously. No special tools and multiple bolts and nuts are needed, which greatly reduces the labor intensity of installation and disassembly and improves the convenience of on-site operation. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0020] In the diagram: 1. Valve body; 2. Conveying pipe; 3. Fixing mechanism; 301. Convex frame; 302. Threaded rod; 303. Handle; 304. Trapezoidal push block; 305. First guide rod; 306. First arc-shaped clamping plate; 307. Connecting ear; 308. Pipe sleeve; 309. First connecting rod; 310. Guide wheel; 311. Second connecting rod; 312. Second arc-shaped clamping plate; 4. Protective cover; 5. Second guide rod; 6. Mounting plate; 7. Electric telescopic rod; 8. Power supply box; 9. Induction coil. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Please see Figure 1-4This utility model provides an eddy current induction precision temperature control heating device for natural gas valves, including a valve body 1, with conveying pipes 2 fixedly connected to both sides of the valve body 1, a fixing mechanism 3 set at the top of each of the two conveying pipes 2, a protective cover 4 fixedly connected to the top of the two fixing mechanisms 3, two second guide rods 5 fixedly connected to the lower surface of the top of the protective cover 4, an mounting plate 6 slidably connected to the outer wall of the two second guide rods 5, two electric telescopic rods 7 fixedly connected to the lower surface of the top of the protective cover 4, a power supply box 8 fixedly connected to the top of the mounting plate 6, and an induction coil 9 corresponding to the power supply box 8 fixedly connected to the bottom of the mounting plate 6.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the bottoms of both electric telescopic rods 7 are fixedly connected to the top of the mounting plate 6. The electric telescopic rods 7 can drive the mounting plate 6 to slide up and down along the second guide rod 5 through telescopic movement, thereby precisely adjusting the distance between the induction coil 9 at the bottom of the mounting plate 6 and the valve body 1. This adjustment capability can ensure that the induction coil 9 is in the optimal heating position, adapt to different valve body 1 sizes or heating requirements, and improve the efficiency and uniformity of eddy current induction heating.

[0024] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the power supply box 8 is equipped with a temperature sensor and a controller. The temperature sensor can monitor the actual temperature of the valve body 1 in real time and feed the temperature data back to the controller. The controller automatically adjusts the power supply parameters of the power supply box 8 to the induction coil 9, such as current and frequency, according to the preset temperature threshold, such as the temperature range required for normal valve operation. This forms a closed-loop control of "monitoring-feedback-regulation" to ensure that the temperature of the valve body 1 is always maintained within a suitable range, avoiding overheating or underheating that could affect valve performance.

[0025] As can be seen from the above working process: by setting up the power supply box 8 and the induction coil 9 in cooperation, the induction coil 9 generates an alternating magnetic field under the power supply of the power supply box 8, and uses the eddy current induction principle to directly heat the natural gas valve body 1. Compared with the existing technology of heat transfer through the flow of heating liquid, eddy current induction heating does not require an intermediate medium to transfer heat. The heat acts directly on the valve, and the heat conduction efficiency is higher. It can quickly transfer heat to the inside of the valve, shorten the heating time, and effectively solve the problem of low efficiency of traditional heating liquid flow heating.

[0026] Further as Figure 4As shown, it is worth noting that the fixing mechanism 3 includes a convex frame 301. A threaded rod 302 is rotatably connected to the top of the convex frame 301. A handle 303 is fixedly connected to the top of the threaded rod 302. A trapezoidal push block 304 is rotatably connected to the bottom of the threaded rod 302. Two first guide rods 305 are fixedly connected to the top of the trapezoidal push block 304. A first arc-shaped clamping plate 306 is installed at the bottom of the trapezoidal push block 304. Two connecting ears 307 are fixedly connected to the inner walls of the front and rear ends of the convex frame 301. A tube sleeve 308 is rotatably connected between each pair of corresponding connecting ears 307. The top of each of the two sleeves 308 is fixedly connected to a first connecting rod 309. The inner ends of the two first connecting rods 309 are rotatably mounted with guide wheels 310. The bottom of each of the two sleeves 308 is fixedly connected to a second connecting rod 311. The inner ends of the two second connecting rods 311 are mounted with second arc-shaped clamps 312. By setting the fixing mechanism 3, the convex frame 301 is stably installed on the outer wall of the conveying pipeline 2, thereby completing the installation of the device on the top of the valve body 1. This replaces the traditional bolt connection, simplifies the installation steps, and makes it more convenient for users to operate when adjustment or disassembly is required. This also makes daily maintenance, inspection and replacement easier.

[0027] Further as Figure 4 As shown, it is worth noting that the top of the convex frame 301 has a threaded groove corresponding to the threaded rod 302 and an opening corresponding to the first guide rod 305. The cooperation between the threaded groove and the threaded rod 302 can ensure that the threaded rod 302 can move up and down while rotating, thereby providing driving force for the lifting of the trapezoidal push block 304. The opening ensures that the first guide rod 305 can slide flexibly, playing a role in limiting and guiding the movement of the trapezoidal push block 304.

[0028] Further as Figure 4 As shown, it is worth noting that both guide wheels 310 roll against the outer wall of the trapezoidal push block 304, ensuring that the movement of the trapezoidal push block 304 can drive the two guide wheels 310 to move outwards simultaneously, thereby providing power for the movement of the second arc-shaped clamping plate 312.

[0029] Further as Figure 4 As shown, it is worth noting that both the first arc-shaped clamp 306 and the second arc-shaped clamp 312 are installed via universal joints. The universal joints allow the angle of the clamps to adapt well to the surface of the conveying pipe 2, enabling them to clamp the conveying pipe 2 more stably, thereby enhancing the stability of the fixation and avoiding loosening caused by vibration or external forces during long-term use. Furthermore, the inner walls of both the first arc-shaped clamp 306 and the second arc-shaped clamp 312 are fixedly connected with anti-slip pads, which increase the contact friction between the clamps and the conveying pipe 2, further reinforcing the installation effect.

[0030] This solution has the following working process: In actual use, rotating the handle 303 drives the threaded rod 302 to rotate, causing the trapezoidal push block 304 at the bottom of the threaded rod 302 to move downward along the first guide rod 305; during the downward movement of the trapezoidal push block 304, its outer wall rolls and adheres to the two guide wheels 310, pushing the first connecting rod 309 to rotate outward, thereby driving the pipe sleeve 308 to rotate around the connecting ear 307, causing the second connecting rod 311 at the bottom to rotate inward synchronously. The first arc-shaped clamping plate 306 clamps the conveying pipe 2 from the top, and the two second arc-shaped clamping plates 312 clamp the conveying pipe 2 from the front and rear sides simultaneously. The anti-slip pad enhances the friction, completing the stable fixation of the protective cover 4 and the entire device, achieving quick installation without bolts or tools; the electric telescopic rod 7 starts and extends, driving the safety device... The mounting plate 6 slides up and down along the second guide rod 5 to adjust the distance between the induction coil 9 at the bottom of the mounting plate 6 and the valve body 1 until the induction coil 9 is in the optimal heating position, ensuring the efficiency and uniformity of eddy current induction heating. The power supply box 8 supplies power to the induction coil 9, which generates an alternating magnetic field to directly heat the valve body 1 through the eddy current induction principle. At the same time, the temperature sensor inside the power supply box 8 monitors the temperature of the valve body 1 in real time and feeds the data back to the controller. The controller automatically adjusts the power supply parameters of the power supply box 8 to the induction coil 9 based on the comparison between the preset temperature threshold and the actual monitored temperature, so as to achieve precise control of the heating power, ensure that the temperature of the valve body 1 is maintained within a suitable range, avoid overheating or underheating, and ensure that the valve 1 operates normally in cold environments.

[0031] In summary: By setting up the fixing mechanism 3, the convex bracket 301 is stably installed on the outer wall of the conveying pipeline 2, thereby completing the installation of the device on the top of the valve body 1, replacing the traditional bolt connection, simplifying the installation steps, and making it more convenient for users to operate when adjustment or disassembly is required, making daily maintenance, inspection and replacement easier; by setting up the power supply box 8 and the induction coil 9 in cooperation, the induction coil 9 generates an alternating magnetic field under the power supply of the power supply box 8, and uses the eddy current induction principle to directly heat the natural gas valve body 1. Compared with the existing technology of heat transfer through the flow of heating liquid, eddy current induction heating does not require an intermediate medium to transfer heat. The heat acts directly on the valve, with higher heat conduction efficiency, and can quickly transfer heat to the inside of the valve, shortening the heating time and effectively solving the problem of low efficiency of traditional heating liquid flow heating.

[0032] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

Claims

1. An eddy current induction precision temperature control heating device for natural gas valves, comprising a valve body (1), characterized in that: The valve body (1) is fixedly connected to two conveying pipes (2) on both sides. The top of each of the two conveying pipes (2) is provided with a fixing mechanism (3). The top of the two fixing mechanisms (3) is fixedly connected with a protective cover (4). The lower surface of the top of the protective cover (4) is fixedly connected with two second guide rods (5). The outer wall of the two second guide rods (5) is slidably connected with an installation plate (6). The lower surface of the top of the protective cover (4) is fixedly connected with two electric telescopic rods (7). The top of the installation plate (6) is fixedly connected with a power supply box (8). The bottom of the installation plate (6) is fixedly connected with an induction coil (9) corresponding to the power supply box (8).

2. The eddy current induction precision temperature control heating device for natural gas valves according to claim 1, characterized in that: The fixing mechanism (3) includes a convex frame (301), a threaded rod (302) is rotatably connected to the top of the convex frame (301), a handle (303) is fixedly connected to the top of the threaded rod (302), a trapezoidal push block (304) is rotatably connected to the bottom of the threaded rod (302), two first guide rods (305) are fixedly connected to the top of the trapezoidal push block (304), and a first arc-shaped clamping plate (306) is installed at the bottom of the trapezoidal push block (304). The front and rear ends of the convex frame (301) Two connecting ears (307) are fixedly connected to the inner wall. A sleeve (308) is rotatably connected between each pair of corresponding connecting ears (307). A first connecting rod (309) is fixedly connected to the top of each of the two sleeves (308). A guide wheel (310) is rotatably installed at the inner end of each of the two first connecting rods (309). A second connecting rod (311) is fixedly connected to the bottom of each of the two sleeves (308). A second arc-shaped clamp (312) is installed at the inner end of each of the two second connecting rods (311).

3. The eddy current induction precision temperature control heating device for natural gas valves according to claim 2, characterized in that: The top of the convex frame (301) is provided with a threaded groove corresponding to the threaded rod (302) and an opening corresponding to the first guide rod (305).

4. The eddy current induction precision temperature control heating device for natural gas valves according to claim 2, characterized in that: Both guide wheels (310) roll against the outer wall of the trapezoidal pusher (304).

5. The eddy current induction precision temperature control heating device for natural gas valves according to claim 2, characterized in that: The first arc-shaped clamp (306) and the second arc-shaped clamp (312) are both installed by universal joints, and the inner walls of the first arc-shaped clamp (306) and the second arc-shaped clamp (312) are both fixedly connected with anti-slip pads.

6. The eddy current induction precision temperature control heating device for natural gas valves according to claim 1, characterized in that: The bottom of both of the electric telescopic rods (7) is fixedly connected to the top of the mounting plate (6).

7. The eddy current induction precision temperature control heating device for natural gas valves according to claim 1, characterized in that: The power supply box (8) is equipped with a temperature sensor and a controller.

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