Thermal insulation all-welded ball valve

Abstract

The utility model discloses a kind of heat-preservation full-welded ball valves, comprising: valve body, valve cover, valve stem, ball core and jacket layer, the valve body is provided with import flow channel and export flow channel, the ball core is set in the valve body and separates the import flow channel and export flow channel, the valve stem inner end is set in the valve body and is connected with the ball core, the jacket layer is set on the valve body, the valve body inner wall is provided with electric heating device, the electric heating device includes heating core, the heating core is detachably connected in the valve body by fastener, by this setting, by setting the electric heating device that can be actively heated on valve body, so that the temperature of heat-preservation medium is always stable at preset temperature, realize the efficient heat preservation of medium flowing in valve body, and reduce temperature fluctuation.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a heat-insulated fully welded ball valve. Background Technology

[0002] A thermally insulated ball valve is a type of valve that uses a ball with a circular through-hole as its opening and closing element. The ball rotates with the valve stem to achieve the opening and closing action. It is mainly used to cut off or connect the medium in a pipeline, and can also be used for fluid regulation and control. It can also close one channel while connecting the other two. Currently, in industries such as petroleum and chemical processing, some media, such as melamine, BPA chemicals, and asphalt, have high requirements for the ambient temperature (≥280°C) and crystallization or solidification is not allowed.

[0003] Existing ball valves with insulation jackets mainly rely on the continuous injection and outflow of insulation media for heating and insulation. The insulation effect is achieved through heat exchange between the insulation media and the medium inside the valve body. However, during use, due to the long and tortuous flow channel of the insulation media, a significant amount of heat is lost during transportation, resulting in high overall energy consumption. Consequently, the medium temperature does not reach the required level, failing to achieve the insulation effect. This leads to an inability to guarantee the medium temperature in the ball valve flow channel, making it prone to crystallization or solidification during transmission, clogging the ball valve and preventing it from functioning properly. Therefore, there is room for improvement. Utility Model Content

[0004] To address the aforementioned problems, this application proposes a thermally insulated fully welded ball valve. By incorporating an active heating device on the valve body, the temperature of the insulation medium is kept stable at a preset temperature, achieving efficient insulation of the flowing medium within the valve body and reducing temperature fluctuations. This thermally insulated fully welded ball valve is specifically implemented through the following technical solution:

[0005] A thermally insulated, fully welded ball valve includes: a valve body, a valve cover, a valve stem, a ball core, and a jacket layer. The valve body has an inlet flow channel and an outlet flow channel. The ball core is disposed inside the valve body to separate the inlet flow channel and the outlet flow channel. The inner end of the valve stem is disposed inside the valve body and connected to the ball core. The jacket layer is disposed on the valve body. An electric heating device is disposed on the inner wall of the valve body. The electric heating device includes a heating core, which is detachably connected to the valve body by fasteners.

[0006] Furthermore, the heating core is equipped with an electrical connector, which facilitates the connection between the heating core and an external power source, and makes the overall assembly and disassembly convenient.

[0007] Furthermore, the jacket layer includes a first jacket and a second jacket. The first jacket is directly welded to the outside of the valve body, and the second jacket is welded to the outside of the first jacket. The first jacket and the valve body form a first insulation cavity, and the first jacket and the second jacket form a second insulation cavity. This configuration provides a double-layer insulation device on the outside of the valve body, making the heat dissipation more stable.

[0008] Furthermore, the first insulation cavity also includes a heating cavity, which is located adjacent to the heating core. This arrangement facilitates the heating core to heat the medium inside the heating cavity.

[0009] Furthermore, the first jacket is equipped with an inlet connector and an outlet connector, both of which are configured for unidirectional flow. This configuration allows the medium inside the first insulation cavity to continuously flow through the inlet and outlet connectors, thus maintaining the temperature.

[0010] Furthermore, the inlet connector is connected to the heating chamber. This design facilitates the flow of the medium within the first insulation chamber, prevents leakage, and enhances overall stability.

[0011] Furthermore, the first insulation cavity is filled with liquid insulation medium through the inlet connector, and the second insulation cavity is sealed with solid insulation medium. This arrangement facilitates the heating of the internal medium and also helps to isolate the medium from the outside environment, thus improving insulation.

[0012] Furthermore, a bushing is provided, which is welded to the jacket layer. The bushing is fitted around the outer periphery of the valve stem, and a compression packing is provided on the inner side of the bushing for pressing against the valve stem. This feature improves the sealing performance of the valve stem and makes the overall structure more stable.

[0013] In summary, the insulated fully welded ball valve, by incorporating an active heating device on the valve body, ensures that the temperature of the insulation medium remains stable at a preset temperature, achieving efficient insulation of the flowing medium within the valve body and reducing temperature fluctuations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1A front sectional view of the insulated fully welded ball valve provided in an embodiment of this application;

[0016] Figure 2 The insulated fully welded ball valve provided in the embodiments of this application Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 The insulated fully welded ball valve provided in the embodiments of this application Figure 1 Enlarged view of section B in the middle.

[0018] The following are the labeling elements in the figure:

[0019] 1. Valve body; 2. Valve stem; 3. Ball core; 4. Jacket layer; 5. Inlet flow channel; 6. Outlet flow channel; 7. Electric heating device; 8. Heating core; 9. Fastener; 10. Electrical connector; 11. First jacket; 12. Second jacket; 13. First insulation cavity; 14. Second insulation cavity; 15. Heating cavity; 16. Inlet connector; 17. Outlet connector; 18. Bushing; 19. Compactor packing. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0021] The appearance of the above terms in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described herein can be combined with other embodiments.

[0022] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0023] Please refer to the following: Figures 1 to 3 A heat-insulated fully welded ball valve includes: a valve body 1, a valve cover, a valve stem 2, a ball core 3, and a jacket layer 4. The valve body 1 is provided with an inlet flow channel 5 and an outlet flow channel 6. The ball core 3 is disposed inside the valve body 1 to separate the inlet flow channel 5 and the outlet flow channel 6. The inner end of the valve stem 2 is disposed inside the valve body 1 and connected to the ball core 3. The jacket layer 4 is disposed on the valve body 1. An electric heating device 7 is provided on the inner wall of the valve body 1. The electric heating device 7 includes a heating core 8, which is detachably connected to the valve body 1 by fasteners 9.

[0024] Please see Figures 1 to 3In this embodiment, the heating core 8 is provided with an electrical connector 10; the jacket layer 4 includes a first jacket 11 and a second jacket 12. The first jacket 11 is directly welded to the outside of the valve body 1, and the second jacket 12 is welded to the outside of the first jacket 11. The first jacket 11 and the valve body 1 form a first insulation cavity 13, and the first jacket 11 and the second jacket 12 form a second insulation cavity 14. This arrangement ensures that the first insulation cavity 13 and the second insulation cavity 14 are mutually isolated, and their gaps are completely sealed by welding. Therefore, the first insulation cavity 13 can contain liquid media, such as water and insulation oil. Compared to using fasteners 9 or sealing rings, this reduces the impact of gaps and sealing ring aging and leakage. The first insulation cavity 13 also includes a heating cavity 15. 5 is positioned adjacent to the heating core 8; the first jacket 11 is provided with an inlet connector 16 and an outlet connector 17, both of which are configured for unidirectional flow; the inlet connector 16 communicates with the heating chamber 15; the first insulation chamber 13 is injected with a liquid insulation medium through the inlet connector 16, and the second insulation chamber 14 is sealed with a solid insulation medium. This arrangement of the liquid medium in the first insulation chamber 13 facilitates the heating of the liquid medium by the heating core 8, and its specific heat capacity is relatively large. Under the heating of the heating core 8, the temperature of the flowing medium in the valve body 1 is more stable, while the second insulation chamber 14 is provided with; a bushing 18 is also provided, which is welded to the jacket layer 4. The bushing 18 is sleeved on the outer periphery of the valve stem 2, and the inner side of the bushing 18 is provided with a compression packing 19 for pressing against the valve stem 2.

[0025] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A thermally insulated, fully welded ball valve, comprising: The valve body (1), valve stem (2), ball core (3), and jacket layer (4) are provided. The valve body (1) is provided with an inlet flow channel (5) and an outlet flow channel (6). The ball core (3) is provided inside the valve body (1) to separate the inlet flow channel (5) and the outlet flow channel (6). The inner end of the valve stem (2) is provided inside the valve body (1) and connected to the ball core (3). The jacket layer (4) is provided on the valve body (1). The valve body (1) is characterized in that an electric heating device (7) is provided on the inner wall of the valve body (1). The electric heating device (7) includes a heating core (8). The heating core (8) is detachably connected to the valve body (1) by fasteners (9).

2. The insulated fully welded ball valve according to claim 1, characterized in that... The heating core (8) is provided with an electrical connector (10).

3. The insulated fully welded ball valve according to claim 1, characterized in that... The jacket layer (4) includes a first jacket (11) and a second jacket (12). The first jacket (11) is directly welded to the outside of the valve body (1). The second jacket (12) is welded to the outside of the first jacket (11). The first jacket (11) and the valve body (1) form a first insulation cavity (13). The first jacket (11) and the second jacket (12) form a second insulation cavity (14).

4. A thermally insulated fully welded ball valve according to claim 3, characterized in that... The first heat preservation cavity (13) also includes a heating cavity (15), which is located adjacent to the heating core (8).

5. A thermally insulated fully welded ball valve according to claim 4, characterized in that... The first jacket (11) is provided with an inlet connector (16) and an outlet connector (17), both of which are configured for unidirectional flow.

6. A thermally insulated fully welded ball valve according to claim 5, characterized in that... The inlet connector (16) is in communication with the heating chamber (15).

7. A thermally insulated fully welded ball valve according to claim 5, characterized in that... The first insulation cavity (13) is filled with liquid insulation medium through the inlet connector (16), and the second insulation cavity (14) is sealed with solid insulation medium.

8. A thermally insulated fully welded ball valve according to claim 1, characterized in that... A bushing (18) is also provided, which is welded to the jacket layer (4). The bushing (18) is sleeved on the outer periphery of the valve stem (2), and a compression packing (19) for pressing between the bushing (18) and the valve stem (2) is provided on the inner side of the bushing (18).

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