A new type of anti-freezing instrument valve

Abstract

The application discloses a novel anti-freezing instrument valve and relates to the technical field of instrument valves.The novel anti-freezing instrument valve comprises an instrument valve body, wherein the instrument valve body comprises a valve body and a valve sleeve installed on the top of the valve body; a heat preservation sleeve is movably sleeved on the valve body; a first annular groove is formed in the inner side of the heat preservation sleeve; a plurality of annular heating pipes are movably sleeved in the first annular groove; a heat conduction assembly for transmitting the heat of the annular heating pipes to the valve body is arranged in the first annular groove; a storage battery for providing energy for the annular heating pipes is arranged in the first annular groove; flange plates are arranged at the two ends of the first annular groove; a second annular groove is arranged on the side of each flange plate close to the valve body; and an elastic sealing assembly in contact with the corresponding side of the valve body is arranged in each second annular groove; the arrangement of the annular heating pipes and the storage battery can heat the valve body in cold weather, reduce the risk of freezing damage caused by excessively low temperature, and improve the anti-freezing effect.

Description

Technical Field

[0001] This invention relates to the field of instrument valve technology, and more specifically to the field of novel antifreeze instrument valve technology. Background Technology

[0002] An instrument valve is a pipeline accessory. It is a device used to change the cross-sectional area of ​​a passage and the direction of media flow, controlling the flow of the transported media. The sealing performance of an instrument valve refers to the ability of each sealing part of the valve to prevent media leakage; it is the most important technical performance indicator of an instrument valve. There are three sealing parts in an instrument valve: the contact point between the sealing surfaces of the opening and closing element and the valve seat; the mating point between the packing and the valve stem and stuffing box; and the connection point between the valve body and the valve cover. Leakage at the first point is called internal leakage, which is commonly referred to as incomplete closure, and it will affect the instrument valve's ability to cut off the media. For shut-off valves, internal leakage is unacceptable. Leakage at the latter two points is called external leakage, which is the media leaking from inside the valve to the outside. External leakage will cause material loss, environmental pollution, and in severe cases, accidents. For flammable, explosive, toxic, or radioactive media, external leakage is even more unacceptable; therefore, instrument valves must have reliable sealing performance.

[0003] Instrument valves play a crucial role in petrochemical and energy construction; however, existing instrument valves have poor antifreeze properties, posing a significant risk of freezing damage in cold weather. Solving these technical problems has become a focus of effort for those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to provide a novel antifreeze instrument valve in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A novel antifreeze instrument valve includes an instrument valve body, which comprises a valve body and a valve sleeve mounted on top of the valve body. An insulation sleeve is movably fitted onto the valve body. A first annular groove is formed on the inner side of the insulation sleeve. Multiple annular heating tubes are movably fitted within the first annular groove. A heat-conducting component is disposed within the first annular groove to transfer heat from the annular heating tubes to the valve body. A battery is disposed within the first annular groove to provide energy to the annular heating tubes. Flanges are provided at both ends of the first annular groove. A second annular groove is provided on the side of each flange closest to the valve body. An elastic sealing component is disposed within each second annular groove that contacts the corresponding side of the valve body.

[0007] Furthermore, each flange is fixedly installed with two fixing blocks on the side corresponding to the first annular groove. The two ends of the first annular groove are respectively fitted onto the two corresponding fixing blocks. The top of the upper fixing block on the same flange is provided with a slot, and a locking rod is movably fitted in the slot. The top of the locking rod extends to the top of the corresponding first annular groove. The top of the two locking rods is fixedly installed with the same moving plate. An internal threaded sleeve is threaded onto the valve sleeve. The moving plate is rotatably fitted onto the internal threaded sleeve. Four grips for rotating the threaded sleeve are fixedly installed in a ring on the outside of the internal threaded sleeve.

[0008] Furthermore, the elastic sealing assembly includes a ring that is slidably fitted in the second annular groove and has a sealing ring in close contact with both ends of the valve body. The side of the sealing ring away from the valve body extends into the corresponding second annular groove and is fixedly connected to the side of the ring near the valve body. The inner side of the sealing ring is in close contact with the inner wall of the corresponding second annular groove. A plurality of compression springs in a compressed state are fixedly connected between the side of the ring away from the corresponding sealing ring and the inner wall of one side of the second annular groove.

[0009] Furthermore, the heat-conducting component includes a plurality of heat-conducting tubes arranged circumferentially within the first annular groove. The length of all heat-conducting tubes is adapted to the first annular groove. The inner side of each heat-conducting tube is in movable contact with the outer side of the valve body. The annular heating tube is fixedly sleeved on the corresponding heat-conducting tube.

[0010] Furthermore, the valve sleeve is disposed in the middle of the valve body, and the heat insulation sleeve consists of two heat insulation sleeves movably disposed on the valve body. Annular grooves A are provided on the inner sidewalls of the two heat insulation sleeves, and the sides of the two annular grooves A that are close to each other are both open. The two annular grooves A constitute the first annular groove.

[0011] Furthermore, a semi-circular groove is provided at the upper end of the side of the two annular grooves A that are close to each other, and the two semi-circular grooves form a complete circular hole for the valve sleeve to pass through.

[0012] The beneficial effects of this invention are as follows:

[0013] This invention is reasonably designed. The annular heating tube and the battery can heat the valve body in cold weather, reducing the risk of freezing damage caused by excessively low temperatures and improving the antifreeze effect. It also allows for the disassembly and assembly of the first annular groove, facilitating personnel maintenance. The cooperation between the compression spring and the sealing ring improves the connection sealing performance, reduces the risk of freezing damage caused by liquid leakage, and meets the usage requirements. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an instrument valve with good antifreeze effect according to the present invention;

[0015] Figure 2 for Figure 1A schematic diagram of the cross-sectional structure;

[0016] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a top view of the structure of the two insulation sleeves;

[0018] Figure 5 This is a schematic diagram of the sealing ring from the right side.

[0019] Reference numerals: 1-Insulation sleeve, 100-Valve body, 101-Valve sleeve, 2-First annular groove, 3-Annular heating tube, 4-Semi-circular groove, 5-Heat conduction tube, 6-Battery, 7-Internal threaded sleeve, 8-Moving plate, 9-Flange, 10-Fixing block, 11-Slot, 12-Clamping rod, 13-Sealing ring, 14-Second annular groove, 15-Circular ring, 16-Compression spring, 17-Mounting cover. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0024] Example 1

[0025] like Figures 1 to 5 As shown, this embodiment provides a novel antifreeze instrument valve, including an instrument valve body. The instrument valve body includes a valve body 100 and a valve sleeve 101 installed on the top of the valve body 100. A heat insulation sleeve 1 is movably fitted on the valve body 100. A first annular groove 2 is formed on the inner side of the heat insulation sleeve 1. A plurality of annular heating tubes 3 are movably fitted in the first annular groove 2. A heat-conducting component is provided in the first annular groove 2 to transfer the heat of the annular heating tubes 3 to the valve body 100. A battery 6 is provided in the first annular groove 2 to provide energy to the annular heating tubes 3. Flanges 9 are provided at both ends of the first annular groove 2. A second annular groove 14 is provided on the side of each flange 9 near the valve body 100. An elastic sealing component is provided in each second annular groove 14 that contacts the corresponding side of the valve body 100.

[0026] In this embodiment, the annular heating tube and the battery can heat the valve body in cold weather, reducing the risk of freezing damage caused by excessively low temperatures, improving the antifreeze effect, and enabling the disassembly and assembly of the first annular groove for easy maintenance. The combination of the compression spring and the sealing ring improves the connection sealing performance, reduces the risk of freezing damage caused by liquid leakage, and meets the usage requirements.

[0027] Example 2

[0028] This embodiment is a further optimization based on Embodiment 1, specifically:

[0029] Two fixing blocks 10 are fixedly installed on the side of each flange 9 near the first annular groove 2. The two ends of the first annular groove 2 are respectively sleeved on the two corresponding fixing blocks 10. The top of the upper fixing block 10 on the same flange 9 is provided with a slot 11. A locking rod 12 is movably locked in the slot 11. The top of the locking rod 12 extends to the top of the corresponding first annular groove 2. The top of the two locking rods 12 is fixedly installed with the same moving plate 8. The valve sleeve 101 is threaded with an internal thread sleeve 7. The moving plate 8 is rotatably sleeved on the internal thread sleeve 7. Four grips for rotating the internal thread sleeve 7 are fixedly installed in an annular shape on the outside of the internal thread sleeve 7.

[0030] The elastic sealing assembly includes a sealing ring 13 that is in close contact with both ends of the valve body 100, and a ring 15 that is slidably fitted in the second annular groove 14. The side of the sealing ring 13 away from the valve body 100 extends into the corresponding second annular groove 14 and is fixedly connected to the side of the ring 15 near the valve body 100. The inner side of the sealing ring 13 is in close contact with the inner wall of the corresponding second annular groove 14. A plurality of compression springs 16 in a compressed state are fixedly connected between the side of the ring 15 away from the corresponding sealing ring 13 and the inner wall of one side of the second annular groove 14.

[0031] The heat-conducting component includes a plurality of heat-conducting tubes 5 arranged circumferentially in the first annular groove 2. The length of all heat-conducting tubes 5 is adapted to the first annular groove 2. The inner side of each heat-conducting tube 5 is in movable contact with the outer side of the valve body 100. The annular heating tube 3 is fixedly sleeved on the corresponding heat-conducting tube 5.

[0032] The valve sleeve 101 is located in the middle of the valve body 100. The heat insulation sleeve 1 consists of two heat insulation sleeves 1 movably mounted on the valve body 100. Annular grooves A are provided on the inner sidewalls of the two heat insulation sleeves 1. The sides of the two annular grooves A that are close to each other are both open. The two annular grooves A constitute the first annular groove 2.

[0033] The upper ends of the two annular grooves A that are close to each other are provided with semi-circular grooves 4, and the two semi-circular grooves 4 form a complete circular hole through which the valve sleeve 101 passes.

[0034] Working principle:

[0035] During use, the annular heating element is turned on for heating. The heat generated is transferred to the valve body via the heat pipe. When it is necessary to remove the insulation sleeve from the valve body, hold the handle and rotate the internal threaded sleeve clockwise. The internal threaded sleeve moves upward, causing the moving plate to move upward. The moving plate causes the two locking rods to move out of their corresponding slots. Then, pull the flange away from the valve body, causing the two fixing blocks to move out of their corresponding rectangular slots. The flange then separates the sealing ring from the valve body via the corresponding compression springs and rings. Next, pull the two insulation sleeves away from each other to remove them from the valve body. During installation, place the two insulation sleeves on the valve body, then pull them closer to the valve body. Pushing the two flanges, the flanges sequentially move the sealing rings to contact the valve body via corresponding compression springs and rings, restricting further movement of the sealing rings. The flanges continue to move and compress the compression springs, causing the flanges to move the corresponding fixing blocks into the rectangular grooves. Then, rotating the handle in the opposite direction causes the internal threaded sleeve to rotate in the opposite direction. The rotation of the internal threaded sleeve drives the moving plate downward through the bearing. The moving plate drives the two locking rods to move into their corresponding slots, thus fixing the flanges. This, in turn, causes the two insulation sleeves to be covered and fixed to the valve body. The installation is complete. The compression springs ensure that the sealing rings and one end of the valve body are always in close contact, improving the connection sealing performance and reducing the risk of freezing damage caused by liquid leakage.

Claims

1. A novel antifreeze instrument valve, characterized in that, The instrument valve body includes a valve body (100) and a valve sleeve (101) installed on the top of the valve body (100). A heat insulation sleeve (1) is movably fitted on the valve body (100). A first annular groove (2) is opened on the inner side of the heat insulation sleeve (1). A plurality of annular heating tubes (3) are movably fitted in the first annular groove (2). A heat-conducting component is provided in the first annular groove (2) to transfer the heat of the annular heating tubes (3) to the valve body (100). A battery (6) is provided in the first annular groove (2) to provide energy to the annular heating tubes (3). Flanges (9) are provided at both ends of the first annular groove (2). A second annular groove (14) is provided on the side of each flange (9) near the valve body (100). An elastic sealing component is provided in each second annular groove (14) that contacts the corresponding side of the valve body (100). Each flange (9) has two fixed blocks (10) fixedly installed on the side corresponding to the first annular groove (2). The two ends of the first annular groove (2) are respectively sleeved on the two fixed blocks (10). The top of the upper fixed block (10) of the two fixed blocks (10) on the same flange (9) has a slot (11). A locking rod (12) is movably locked in the slot (11). The top of the locking rod (12) extends to the top of the corresponding first annular groove (2). The top of the two locking rods (12) is fixedly installed with the same moving plate (8). The valve sleeve (101) is threaded with an internal thread sleeve (7). The moving plate (8) is rotated and sleeved on the internal thread sleeve (7). The outer side of the internal thread sleeve (7) is fixedly installed with four grips for rotating the internal thread sleeve (7) in an annular shape. The valve sleeve (101) is located in the middle of the valve body (100). The heat insulation sleeve (1) consists of two heat insulation sleeves (1) movably mounted on the valve body (100). Annular grooves A are provided on the inner sidewalls of the two heat insulation sleeves (1). The two annular grooves A are both open on the side that is close to each other. The two annular grooves A constitute the first annular groove (2).

2. The novel antifreeze instrument valve according to claim 1, characterized in that, The elastic sealing assembly includes a sealing ring (13) that is in close contact with both ends of the valve body (100), and a ring (15) that is slidably fitted in the second annular groove (14). The side of the sealing ring (13) away from the valve body (100) extends into the corresponding second annular groove (14) and is fixedly connected to the side of the ring (15) near the valve body (100). The inner side of the sealing ring (13) is in close contact with the inner wall of the corresponding second annular groove (14). A plurality of compression springs (16) in a compressed state are fixedly connected between the side of the ring (15) away from the corresponding sealing ring (13) and the inner wall of one side of the second annular groove (14).

3. The novel antifreeze instrument valve according to claim 1, characterized in that, The heat-conducting component includes multiple heat-conducting tubes (5) arranged circumferentially in the first annular groove (2). The length of all heat-conducting tubes (5) is adapted to the first annular groove (2). The inner side of each heat-conducting tube (5) is in movable contact with the outer side of the valve body (100). The annular heating tube (3) is fixedly sleeved on the corresponding heat-conducting tube (5).

4. The novel antifreeze instrument valve according to claim 1, characterized in that, The upper ends of the two annular grooves A that are close to each other are provided with semi-circular grooves (4), and the two semi-circular grooves (4) form a complete circular hole through which the valve sleeve (101) passes.

Images