High temperature resistant sealing ball valve

Abstract

The utility model relates to the technical field of sealing ball valve, and disclose a kind of high-temperature-resistant sealing ball valve, including ball valve body, the right end of ball valve body is fixedly connected with output pipe, the left end of ball valve body is fixedly connected with input pipe, the surface of input pipe is fixedly connected with cooling assembly, the cooling assembly includes annular pipe, the surface of annular pipe is fixedly connected with connecting pipe, the top of connecting pipe is fixedly connected with temperature insulation sleeve, the inside fixed mounting of temperature insulation sleeve has drive motor.The utility model sets up by annular pipe, connecting pipe, temperature insulation sleeve, drive motor, rotating rod, impeller, liquid inlet pipe and cover cooling assembly, cooling liquid can rely on impeller forced circulation after pump inlet closure, continuously absorb input pipe and output pipe surface heat, to significantly reduce valve body and actuator end surface temperature, reach still can long-term safe operation effect under higher temperature medium condition.

Description

Technical Field

[0001] This utility model relates to the field of sealing ball valve technology, specifically a high-temperature resistant sealing ball valve. Background Technology

[0002] A sealed ball valve is a type of valve that opens and closes by rotating a ball with a through hole. The ball and the valve seat use a sealing pair made of polytetrafluoroethylene, metal, or ceramic to ensure bidirectional zero leakage. The valve stem is designed to prevent static electricity and flyout. It can be equipped with pneumatic, electric, or manual actuators and is suitable for high temperature, high pressure, and highly corrosive conditions. It has low flow resistance and rapid switching and is widely used in the petroleum, chemical, power, and urban gas industries.

[0003] As the temperature of the medium inside the ball valve increases, the thermal expansion of the valve body and sealing surfaces intensifies, which can easily lead to problems such as increased torque and increased leakage, limiting its safe use under higher temperature conditions. Existing ball valves lack an efficient cooling structure integrated with the valve body and rely solely on external insulation or simple heat sinks, which cannot remove the heat accumulated in the input and output pipe sections in time, resulting in excessively rapid temperature rise of the sealing surface and affecting its service life. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a high-temperature resistant sealing ball valve, including a ball valve body, an output pipe fixedly connected to the right end of the ball valve body, an input pipe fixedly connected to the left end of the ball valve body, and a cooling component fixedly connected to the surface of the input pipe.

[0005] The cooling component includes an annular tube, a connecting pipe fixedly connected to the surface of the annular tube, a heat insulation sleeve fixedly connected to the top of the connecting pipe, a drive motor fixedly installed inside the heat insulation sleeve, a rotating rod fixedly connected to the output end of the drive motor, an impeller fixedly connected to the surface of the rotating rod, a battery compartment installed on the surface of the drive motor, and a liquid inlet pipe fixedly connected to the bottom of the annular tube, with a cap threadedly connected to the bottom of the liquid inlet pipe.

[0006] The above technical solution involves fixing the ball valve body to the output pipe and input pipe at both ends, respectively, and setting a cooling component on the outer surface of the input pipe. This allows the coolant to form a forced circulation inside the annular pipe and connecting pipe, quickly removing heat from the pipe wall and effectively reducing the working temperature of the valve body and sealing surfaces. This improves the sealing reliability and service life of the ball valve under high-temperature conditions.

[0007] As a further improvement to the above solution, two annular tubes are provided, which are evenly distributed symmetrically around the top center of the annular tubes, and the two annular tubes are respectively fixedly connected to the outer surfaces of the output tube and the input tube.

[0008] By employing the above technical solution, a symmetrical dual-channel cooling system is formed by arranging an annular tube on the outer surface of both the output and input tubes. This allows for more uniform heat absorption, avoids thermal stress concentration caused by excessive temperature drop on one side, and further ensures the thermal stability and mechanical strength of the overall structure.

[0009] As a further improvement to the above solution, the insulation sleeve is made of nano-aerogel felt, and the annular tube and the connecting tube are both made of metallic copper.

[0010] The above technical solution utilizes a heat insulation sleeve with extremely low thermal conductivity nano-aerogel felt to isolate the drive motor from the high-temperature area. At the same time, a ring tube and connecting tube are made of high thermal conductivity copper material to achieve the dual functions of external heat resistance and internal heat transfer, which protects electrical components and improves cooling efficiency.

[0011] As a further improvement to the above solution, the rotating rod is located inside the connecting pipe.

[0012] By using the above technical solution, the rotating rod is placed inside the connecting pipe, allowing the impeller to act directly on the coolant flow channel, avoiding additional transmission losses, ensuring efficient transmission of circulating power, and improving the response speed and operational reliability of the cooling system.

[0013] As a further improvement to the above solution, the drive motor is electrically connected to the battery compartment.

[0014] Through the above technical solution, the drive motor and the battery compartment are electrically connected to form an independent power supply system, which can drive the impeller to circulate coolant without the need for an external power source, simplifying on-site wiring and improving the applicability and safety of the equipment in remote or high-temperature environments.

[0015] As a further improvement to the above solution, a valve stem is rotatably connected inside the ball valve body, a flange one is fixedly connected to the right end of the output pipe, and a flange two is fixedly connected to the left end of the input pipe.

[0016] The above technical solution achieves ball opening and closing by rotating the valve stem to connect it to the ball valve body; at the same time, flange one and flange two are respectively provided at the ends of the output pipe and the input pipe to facilitate quick connection with the pipeline, ensure installation coaxiality, and reduce the risk of leakage.

[0017] As a further improvement to the above scheme, flange one and flange two are concentric.

[0018] Through the above technical solution, flange one and flange two are kept concentric, so that the ball valve is subjected to uniform force during installation, eliminating uneven wear of the sealing surface caused by off-center load.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention features a cooling assembly consisting of an annular pipe, a connecting pipe, a heat insulation sleeve, a drive motor, a rotating rod, an impeller, an inlet pipe, and a cover. This assembly allows the coolant to circulate under forced circulation by the impeller after the pump inlet is closed, continuously absorbing heat from the surfaces of the input and output pipes. This significantly reduces the temperature of the valve body and actuator end face, enabling long-term safe operation even under higher temperature media conditions.

[0021] This invention selects nano-aerogel felt as the insulation sleeve material and uses high thermal conductivity copper for the annular tube and connecting tube to form a synergistic structure of external insulation and internal high-efficiency heat transfer. This not only blocks the diffusion of heat to the drive motor and the external environment, but also ensures that the coolant can quickly remove heat from the tube wall, thus achieving the effect of simultaneous optimization of insulation and heat dissipation, and energy saving and consumption reduction. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the separation structure of the ball valve body and the cooling component of this utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the cooling component of this utility model;

[0025] Figure 4 This is a schematic cross-sectional view of the top of the annular tube and connecting tube of this utility model;

[0026] Figure 5 This is a schematic diagram of the overall connection structure of the impeller of this utility model.

[0027] In the diagram: 1. Ball valve body; 2. Output pipe; 3. Input pipe; 4. Cooling assembly; 41. Ring pipe; 42. Connecting pipe; 43. Insulation sleeve; 44. Drive motor; 45. Rotating rod; 46. Impeller; 47. Battery compartment; 48. Liquid inlet pipe; 49. Cover; 5. Valve stem; 6. Flange 1; 7. Flange 2. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0029] Example:

[0030] Please combine Figure 1-5 A high-temperature resistant sealing ball valve according to this embodiment includes a ball valve body 1, an output pipe 2 fixedly connected to the right end of the ball valve body 1, an input pipe 3 fixedly connected to the left end of the ball valve body 1, and a cooling component 4 fixedly connected to the surface of the input pipe 3.

[0031] The cooling component 4 includes an annular tube 41, a connecting pipe 42 fixedly connected to the surface of the annular tube 41, a heat insulation sleeve 43 fixedly connected to the top of the connecting pipe 42, a drive motor 44 fixedly installed inside the heat insulation sleeve 43, a rotating rod 45 fixedly connected to the output end of the drive motor 44, an impeller 46 fixedly connected to the surface of the rotating rod 45, a battery compartment 47 installed on the surface of the drive motor 44, an inlet pipe 48 fixedly connected to the bottom of the annular tube 41, and a cap 49 threadedly connected to the bottom of the inlet pipe 48.

[0032] In use, the drive motor 44 is started, and the output end of the drive motor 44 drives the rotating rod 45 to rotate. The rotation of the rotating rod 45 drives the impeller 46 to rotate. The rotation of the impeller 46 drives the coolant inside the connecting pipe 42 to circulate inside the annular pipe 41 and the connecting pipe 42, so that the coolant can fully contact the inner wall of the annular pipe 41 and the connecting pipe 42, and absorb the heat generated on the surface of the annular pipe 41, the connecting pipe 42, the output pipe 2, and the input pipe 3.

[0033] There are two annular tubes 41, which are evenly distributed symmetrically around the top center of the annular tube 41. The two annular tubes 41 are fixedly connected to the outer surfaces of the output tube 2 and the input tube 3, respectively.

[0034] The insulation sleeve 43 is made of nano-aerogel felt, and the annular tube 41 and the connecting tube 42 are both made of metallic copper. The insulation sleeve with the extremely low thermal conductivity of nano-aerogel felt isolates the drive motor 43 from the high-temperature area. At the same time, the annular tube and the connecting tube 42 are made of high thermal conductivity copper material to achieve the dual functions of external heat resistance and internal heat transfer, which protects electrical components and improves cooling efficiency.

[0035] The rotating rod 45 is located inside the connecting pipe 42.

[0036] The drive motor 44 is electrically connected to the battery compartment 47.

[0037] The ball valve body 1 is internally rotatably connected to a valve stem 5, the right end of the output pipe 2 is fixedly connected to a flange 6, and the left end of the input pipe 3 is fixedly connected to a flange 7.

[0038] Flange 16 and flange 27 are concentric.

[0039] The implementation principle of a high-temperature resistant sealing ball valve in this application embodiment is as follows: when the ball valve is used, the ball valve body 1 is first opened by the valve stem 5, so that the high-temperature liquid flows through the inside of the ball valve body 1.

[0040] When cooling the ball valve, unscrew the cap 49 from the inside of the inlet pipe 48, and then use a water pump to draw coolant into the annular pipe 41 and the connecting pipe 42. After the inside of the inlet pipe 48 is filled with liquid, thread the cap 49 to the bottom of the inlet pipe 48 to seal it.

[0041] Start the drive motor 44. The output end of the drive motor 44 drives the rotating rod 45 to rotate. The rotation of the rotating rod 45 drives the impeller 46 to rotate. The rotation of the impeller 46 drives the coolant inside the connecting pipe 42 to circulate inside the annular pipe 41 and the connecting pipe 42. This allows the coolant to fully contact the inner walls of the annular pipe 41 and the connecting pipe 42, and absorb the heat generated on the surfaces of the annular pipe 41, the connecting pipe 42, the output pipe 2, and the input pipe 3. This helps to absorb heat inside the ball valve body 1, enabling the ball valve body 1 to handle liquids with higher temperatures.

[0042] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A high-temperature resistant sealing ball valve, characterized in that: Includes a ball valve body (1), with an output pipe (2) fixedly connected to the right end of the ball valve body (1), an input pipe (3) fixedly connected to the left end of the ball valve body (1), and a cooling component (4) fixedly connected to the surface of the input pipe (3). The cooling component (4) includes an annular tube (41), a connecting tube (42) is fixedly connected to the surface of the annular tube (41), a heat insulation sleeve (43) is fixedly connected to the top of the connecting tube (42), a drive motor (44) is fixedly installed inside the heat insulation sleeve (43), a rotating rod (45) is fixedly connected to the output end of the drive motor (44), an impeller (46) is fixedly connected to the surface of the rotating rod (45), a battery compartment (47) is installed on the surface of the drive motor (44), an inlet pipe (48) is fixedly connected to the bottom of the annular tube (41), and a cap (49) is threadedly connected to the bottom of the inlet pipe (48).

2. The high-temperature resistant sealing ball valve according to claim 1, characterized in that: The number of the annular tubes (41) is set to two, and the two annular tubes (41) are evenly distributed symmetrically with respect to the top center of the annular tubes (41). The two annular tubes (41) are respectively fixedly connected to the outer surfaces of the output tube (2) and the input tube (3).

3. The high-temperature resistant sealing ball valve according to claim 1, characterized in that: The insulation sleeve (43) is made of nano-aerogel felt, and the annular tube (41) and the connecting tube (42) are both made of copper.

4. A high-temperature resistant sealing ball valve according to claim 1, characterized in that: The rotating rod (45) is located inside the connecting pipe (42).

5. A high-temperature resistant sealing ball valve according to claim 1, characterized in that: The drive motor (44) is electrically connected to the battery compartment (47).

6. A high-temperature resistant sealing ball valve according to claim 1, characterized in that: The ball valve body (1) is rotatably connected to a valve stem (5), the right end of the output pipe (2) is fixedly connected to a flange one (6), and the left end of the input pipe (3) is fixedly connected to a flange two (7).

7. A high-temperature resistant sealing ball valve according to claim 6, characterized in that: The first flange (6) and the second flange (7) are concentric.

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