Long-life gate valve castings

Abstract

This utility model relates to the field of valve technology, and in particular to a long-life gate valve casting, including a valve body. The valve body has an inlet flow channel and an outlet flow channel. The outer wall of the valve body corresponding to the inlet flow channel and the outlet flow channel is provided with reinforcing ribs. The reinforcing ribs include several horizontal ribs and several annular ribs that are intersected and connected. The horizontal ribs are evenly distributed along the circumference of the valve body, and the annular ribs are evenly distributed along the axial direction of the valve body. Each annular rib is connected to several horizontal ribs. Each horizontal rib has a heat dissipation channel, and each annular rib has an annular auxiliary channel that communicates with the heat dissipation channel. The heat dissipation channel on the inlet flow channel side communicates with the inlet flow channel, and the heat dissipation channel on the outlet flow channel side communicates with the outlet flow channel. This utility model provides reinforcing ribs with internal heat dissipation channels on the valve body, so that the valve body can have both high strength and high heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a long-life gate valve casting. Background Technology

[0002] The gate valve's opening and closing element is a gate. The gate's movement direction is perpendicular to the fluid direction. Gate valves can only be fully open or fully closed; they cannot be used for regulation or throttling. The gate has two sealing surfaces. When the gate valve is closed, the sealing surfaces can rely solely on the medium pressure to seal, meaning the medium pressure alone presses the gate's sealing surface against the valve seat on the other side to ensure a seal. Most gate valves use forced sealing, meaning that when the valve is closed, external force is required to press the gate against the valve seat to ensure the sealing surface is sealed.

[0003] The performance of the valve body is crucial to the lifespan of the gate valve. Therefore, the valve body must be both strong and have good heat dissipation. However, existing gate valve bodies cannot simultaneously meet both performance requirements.

[0004] The purpose of this invention is to propose corresponding solutions to the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and provide a long-life gate valve casting. This invention provides reinforcing ribs with internal heat dissipation channels on the valve body, so that the valve body can have both high strength and high heat dissipation.

[0006] The technical solution adopted by this utility model is as follows: a long-life gate valve casting, including a valve body, wherein the valve body is provided with an inlet flow channel and an outlet flow channel, and the outer wall of the valve body corresponding to the inlet flow channel and the outlet flow channel is provided with reinforcing ribs. The reinforcing ribs include several horizontal ribs and several annular ribs that are intersected and connected. The horizontal ribs are evenly distributed along the circumference of the valve body, and the annular ribs are evenly distributed along the axial direction of the valve body. Each annular rib is connected to several horizontal ribs. Each horizontal rib is provided with a heat dissipation channel, and each annular rib is provided with an annular auxiliary channel that communicates with the heat dissipation channel. The heat dissipation channel provided on the side of the inlet flow channel is connected to the inlet flow channel, and the heat dissipation channel provided on the side of the outlet flow channel is connected to the outlet flow channel.

[0007] The heat dissipation channel includes a heat dissipation cavity, a first channel, and a second channel. The first channel and the second channel are respectively connected to the two ends of the heat dissipation cavity. The length of the first channel is greater than that of the second channel. The heat dissipation cavity is inclined.

[0008] The heat dissipation cavity includes a first heat dissipation section and a second heat dissipation section connected together. The first heat dissipation section is located at one end near the first channel, and the inner diameter of the first heat dissipation section is smaller than that of the second heat dissipation section.

[0009] The heat dissipation channel also includes a third channel, which is located between the first channel and the second channel, and is connected to both the first heat dissipation zone and the second heat dissipation zone.

[0010] The third channel is provided with an elastic sealing ring, which is used to block or connect the third channel.

[0011] The end of the third channel is provided with a limiting part, and the elastic sealing ring is sleeved on the limiting part. A clearance groove is also provided between the limiting part and the third channel. When the elastic sealing ring abuts against the limiting part, the third channel is in a blocked state. When the elastic sealing ring slides into the clearance groove, the third channel is in a connected state.

[0012] The inner wall of the relief groove is provided with an inclined conical surface, and the elastic sealing ring is provided with a beveled edge that matches the conical surface. The elastic sealing ring slides with the conical surface through the beveled edge.

[0013] The valve body is formed by casting.

[0014] The beneficial effects of this utility model are as follows: This utility model sets up reinforcing ribs with internal heat dissipation channels on the valve body. The cross-connected horizontal ribs and ring ribs form a reinforcing rib structure. This mesh rib structure can effectively resist medium pressure, external opening and closing forces, and possible pipeline stress, providing a solid structural foundation for the long-term reliable sealing of the valve. The heat dissipation channels in the horizontal ribs are connected to the annular auxiliary channels in the ring ribs, forming a heat dissipation network for medium flow. The integrated structure makes full use of the space of the reinforcing ribs, enabling the valve body to have both high strength and high heat dissipation, effectively extending its service life. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 This is a schematic diagram of the structure of the long-life gate valve casting of this utility model;

[0017] Figure 2 This is a partially enlarged schematic diagram of the valve body in this utility model;

[0018] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0019] In the figure, 1-valve body, 2-inlet flow channel, 3-outlet flow channel, 4-horizontal rib, 5-ring rib, 6-annular auxiliary channel, 7-heat dissipation cavity, 8-first channel, 9-second channel, 10-first heat dissipation zone, 11-second heat dissipation zone, 12-third channel, 13-elastic sealing ring, 14-limiting part, 15-relief groove, 16-conical surface, 17-hedge. Detailed Implementation

[0020] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0021] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0022] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0023] like Figures 1 to 3 As shown, this is an embodiment of the present invention: a long-life gate valve casting, including a valve body 1. The valve body 1 has an inlet flow channel 2 and an outlet flow channel 3. The outer walls of the valve body 1 corresponding to the inlet flow channel 2 and the outlet flow channel 3 are raised with reinforcing ribs. The reinforcing ribs include several horizontal ribs 4 and several annular ribs 5 that are intersected and connected. The horizontal ribs 4 are evenly distributed along the circumference of the valve body 1, and the annular ribs 5 are evenly distributed along the axial direction of the valve body 1. Each annular rib 5 is connected to several horizontal ribs 4. Each horizontal rib 4 has a heat dissipation channel, and each annular rib 5 has an annular auxiliary channel 6 that communicates with the heat dissipation channel. The heat dissipation channel on the side of the inlet flow channel 2 communicates with the inlet flow channel 2, and the heat dissipation channel on the side of the outlet flow channel 3 communicates with the outlet flow channel 3.

[0024] The beneficial effects of this design are as follows: This utility model features reinforcing ribs with internal heat dissipation channels on the valve body. The intersecting horizontal and circular ribs form a reinforcing rib structure. This mesh-like rib structure can effectively resist medium pressure, external opening and closing forces, and possible pipeline stress, providing a solid structural foundation for the long-term reliable sealing of the valve. The heat dissipation channels in the horizontal ribs are connected to the annular auxiliary channels in the circular ribs, forming a heat dissipation network for medium flow. The integrated structure makes full use of the space of the reinforcing ribs, enabling the valve body to have both high strength and high heat dissipation, effectively extending its service life.

[0025] Further configuration: the heat dissipation channel includes a heat dissipation cavity 7, a first channel 8 and a second channel 9, the first channel 8 and the second channel 9 respectively connect to the two ends of the heat dissipation cavity 7, the length of the first channel 8 is greater than that of the second channel 9, and the heat dissipation cavity 7 is inclined.

[0026] The beneficial effects of this design are as follows: the longer first channel extends the heat exchange path and time; the tilted design of the heat dissipation cavity promotes directional flow and circulation of the medium; and it also effectively increases the heat dissipation area, thereby improving heat dissipation efficiency and stability.

[0027] Further, the heat dissipation cavity 7 includes a first heat dissipation zone 10 and a second heat dissipation zone 11 connected together. The first heat dissipation zone 10 is located at one end near the first channel 8, and the inner diameter of the first heat dissipation zone 10 is smaller than that of the second heat dissipation zone 11.

[0028] The beneficial effects of this design are as follows: the first heat dissipation zone is located on one side of the heat dissipation channel inlet and has a small flow area, which can increase the flow rate and enhance the turbulence effect, thereby improving the convective heat transfer coefficient and heat exchange efficiency. The second heat dissipation zone, located on the outlet side, has a larger flow area, which can slow down the flow rate and allow the heat carried by the medium to have more time for deep heat exchange with the cavity wall, thus optimizing the overall temperature distribution and reducing the risk of thermal stress.

[0029] Furthermore, the heat dissipation channel also includes a third channel 12, which is located between the first channel 8 and the second channel 9, and is simultaneously connected to the first heat dissipation zone 10 and the second heat dissipation zone 11.

[0030] The beneficial effects of this setup are as follows: by setting up a third channel to form a multi-path loop, the fault tolerance of the heat dissipation network is enhanced; the medium can be effectively bypassed through the third channel, ensuring the long-term stable operation of the heat dissipation network and further improving the overall heat exchange efficiency.

[0031] Furthermore, the third channel 12 is provided with an elastic sealing ring 13, which is used to block or connect the third channel 12.

[0032] The beneficial effects of this design are as follows: an elastic sealing ring is installed in the third channel to achieve adaptive adjustment. When the valve body temperature rises to the set threshold, the elastic sealing ring expands and deforms due to heat, releasing the blockage of the third channel and allowing it to conduct. Under low temperature or normal temperature conditions, the elastic sealing ring remains in a contracted state to block the third channel, significantly reducing the risk of excessive circulation and retention of low temperature medium in the heat dissipation cavity.

[0033] Furthermore, the end of the third channel 12 is provided with a limiting part 14, and the elastic sealing ring 13 is sleeved on the limiting part 14. A relief groove 15 is also provided between the limiting part 14 and the third channel 12. When the elastic sealing ring 13 abuts against the limiting part 14, the third channel 12 is in a blocked state. When the elastic sealing ring 13 slides into the relief groove 15, the third channel 12 is in a connected state.

[0034] The beneficial effects of this design are as follows: the limiting part is used to restrict the installation position of the elastic sealing ring; at low temperatures, it can block the third channel and will not detach from the third channel; when the elastic sealing ring expands due to heat, it will slide into the relief groove, thus connecting the third channel; the relief groove provides controllable deformation space, thereby achieving precise guidance of thermal expansion.

[0035] In a further configuration, the inner wall of the relief groove 15 is provided with an inclined conical surface 16, and the elastic sealing ring 13 is provided with a beveled edge 17 that is adapted to the conical surface 16. The elastic sealing ring 13 slides with the conical surface 16 through the beveled edge 17.

[0036] The beneficial effects of this design are as follows: the sliding fit structure between the conical surface and the inclined side effectively reduces frictional resistance, makes the elastic sealing ring slide more smoothly, responds faster, activates precise temperature control, and improves thermal displacement efficiency.

[0037] Furthermore, the valve body 1 is made by casting.

[0038] The advantages of this design are as follows: the casting process facilitates the machining of compact and complex structures, while also ensuring the high strength of the valve body.

[0039] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A long-life gate valve casting, comprising a valve body (1), wherein the valve body (1) is provided with an inlet flow channel (2) and an outlet flow channel (3), characterized in that: The valve body (1) has reinforcing ribs protruding from the outer walls of the inlet flow channel (2) and the outlet flow channel (3). The reinforcing ribs include several cross-connected transverse ribs (4) and several annular ribs (5). The cross ribs (4) are evenly distributed along the circumference of the valve body (1), and the annular ribs (5) are evenly distributed along the axial direction of the valve body (1). Each annular rib (5) is connected to several cross ribs (4). Each cross rib (4) has a heat dissipation channel, and each annular rib (5) has an annular auxiliary channel (6) connected to the heat dissipation channel. The heat dissipation channel on the side of the inlet flow channel (2) is connected to the inlet flow channel (2), and the heat dissipation channel on the side of the outlet flow channel (3) is connected to the outlet flow channel (3).

2. The long-life gate valve casting according to claim 1, characterized in that: The heat dissipation channel includes a heat dissipation cavity (7), a first channel (8) and a second channel (9). The first channel (8) and the second channel (9) are respectively connected to the two ends of the heat dissipation cavity (7). The length of the first channel (8) is greater than that of the second channel (9). The heat dissipation cavity (7) is inclined.

3. The long-life gate valve casting according to claim 2, characterized in that: The heat dissipation cavity (7) includes a first heat dissipation zone (10) and a second heat dissipation zone (11) connected together. The first heat dissipation zone (10) is located at one end close to the first channel (8), and the inner diameter of the first heat dissipation zone (10) is smaller than that of the second heat dissipation zone (11).

4. The long-life gate valve casting according to claim 3, characterized in that: The heat dissipation channel also includes a third channel (12), which is located between the first channel (8) and the second channel (9), and the third channel (12) is connected to both the first heat dissipation zone (10) and the second heat dissipation zone (11).

5. The long-life gate valve casting according to claim 4, characterized in that: The third channel (12) is provided with an elastic sealing ring (13), which is used to block or connect the third channel (12).

6. The long-life gate valve casting according to claim 5, characterized in that: The end of the third channel (12) is provided with a limiting part (14), and the elastic sealing ring (13) is sleeved on the limiting part (14). A relief groove (15) is also provided between the limiting part (14) and the third channel (12). When the elastic sealing ring (13) abuts against the limiting part (14), the third channel (12) is in a blocked state. When the elastic sealing ring (13) slides into the relief groove (15), the third channel (12) is in a connected state.

7. The long-life gate valve casting according to claim 6, characterized in that: The inner wall of the relief groove (15) is provided with an inclined conical surface (16), and the elastic sealing ring (13) is provided with a chamfer (17) that matches the conical surface (16). The elastic sealing ring (13) slides with the conical surface (16) through the chamfer (17).

8. The long-life gate valve casting according to claim 1, characterized in that: The valve body (1) is formed by casting.

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