High-wear-resistance self-lubricating gate valve for supercritical power station

Abstract

The utility model relates to the field of gate valve devices, and discloses a high wear-resistant self-lubricating gate valve for a supercritical power station, which comprises a fixing device and an adjusting device, the fixing device is arranged at the top end of the adjusting device, the fixing device comprises an upper cover body, and the middle part of the top end of a fixing plate is fixedly connected with a second connecting pipe. The top end of the fixing frame is rotationally connected with a rotating disc, the middle of the inner side wall of the rotating disc is rotationally connected with a lead screw, the top end of the inner side wall of the fixing frame is fixedly connected with a sleeve, the bottom end of the inner side wall of the fixing frame is fixedly connected with a rotating block, and the two sides of the rotating block are in threaded connection with fixing bolts correspondingly. And the inner side wall of the sleeve is fixedly connected with a first lubricating sponge. According to the high-abrasion-resistance self-lubricating gate valve for the supercritical power station, the lubricating effect of the lead screw in the using process is effectively improved by arranging the fixing device, and the service life of the whole device is prolonged by arranging the adjusting device.

Description

Technical Field

[0001] This utility model relates to the field of gate valve devices, and in particular to a high wear-resistant self-lubricating gate valve for supercritical power plants. Background Technology

[0002] In the field of power plant valves, especially in supercritical power plants, valves are key components whose performance directly affects the overall operating efficiency and safety of the power plant. Supercritical power plants operate in ultra-high temperature and ultra-high pressure environments, which places extremely high demands on the temperature resistance, pressure resistance, wear resistance, and sealing performance of valves.

[0003] While existing technologies use valves to ensure the normal operation of supercritical power plants, the valves suffer from insufficient sealing performance and poor wear resistance, resulting in a shorter overall service life. Therefore, those skilled in the art provide a high wear-resistant self-lubricating gate valve for supercritical power plants to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a high wear-resistant self-lubricating gate valve for supercritical power plants. It provides a high wear-resistant self-lubricating gate valve for supercritical power plants that effectively improves the lubrication effect of the screw during use by setting a fixing device and improves the overall service life of the device by setting an adjustment device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high wear-resistant self-lubricating gate valve for supercritical power plants, comprising a fixing device and an adjusting device. The fixing device is located at the top of the adjusting device. The fixing device includes an upper cover, a fixing plate fixedly connected to one side of the upper cover, a second connecting pipe fixedly connected to the middle of the top of the fixing plate, a first connecting pipe fixedly connected to the rear end of the oil storage tank, a fixing frame fixedly connected to the middle of the top of the upper cover, a turntable rotatably connected to the top of the fixing frame, a lead screw rotatably connected to the middle of the inner sidewall of the turntable, a sleeve fixedly connected to the top of the inner sidewall of the fixing frame, a rotating block fixedly connected to the bottom of the inner sidewall of the fixing frame, fixing bolts threadedly connected to both sides of the rotating block, and a first lubricating sponge fixedly connected to the inner sidewall of the sleeve.

[0006] Through the above technical solution, by setting a fixing device, a sleeve is provided on the inner side wall of the fixing frame, and a first lubricating sponge is provided on the inner side wall of the sleeve. By rotating the turntable and utilizing the threaded connection between the turntable and the lead screw, the valve disc can be raised and lowered. At the same time, during the process of the lead screw rotating and raising and lowering, the lubricating oil in the oil tank is absorbed into the first lubricating sponge, which can effectively improve the lubrication effect of the lead screw during use.

[0007] Furthermore, the adjusting device includes a lower cover, with flanges fixedly connected to both ends of the lower cover. The sidewalls of the two flanges are arranged in a circular array with several mounting holes. A sliding groove is provided in the middle of the inner sidewall of the lower cover. A valve disc is slidably connected to the inner sidewall of the sliding groove. A second lubricating sponge is fixedly connected to the upper part of the middle of the inner sidewall of the lower cover. The lower cover is fixedly connected to the bottom end of the upper cover.

[0008] The above technical solution involves setting an adjustment device, installing a valve disc in the lower cover, and installing a second lubricating sponge in the lower cover. When the valve disc is working, the friction between the side wall of the valve disc and the lower cover can lubricate the valve disc, preventing damage to the valve disc during its up-and-down sliding process and improving the overall service life of the device.

[0009] Furthermore, the bottom end of the lead screw passes through the top end of the fixed frame and is rotatably connected to the top end of the rotating block and the top end of the valve disc;

[0010] The above technical solution effectively controls the valve disc.

[0011] Furthermore, the other end of the first connecting tube penetrates the side wall of the upper cover and communicates with the second lubricating sponge;

[0012] The above technical solution effectively guides the lubricating oil to the lubricating sponge.

[0013] Furthermore, the other end of the second connecting pipe penetrates the side wall of the sleeve and communicates with the first lubricating sponge;

[0014] The above technical solution effectively guides the lubricating oil to the first lubricating sponge.

[0015] Furthermore, the two fixing bolts respectively pass through the rotating block and are rotatably connected to both sides of the top end of the upper cover;

[0016] The above technical solution effectively installs the rotating block, improving the stability of the lead screw.

[0017] Furthermore, the valve disc sidewall is slidably connected to the inner sidewall of the second lubricating sponge;

[0018] The above technical solutions effectively improve the wear resistance of the valve disc.

[0019] Furthermore, the bottom end of the upper cover and the top end of the lower cover are adapted to each other;

[0020] The above technical solutions effectively improve the overall installation effect of the device.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting a fixing device, a sleeve is provided on the inner side wall of the fixing frame, and a first lubricating sponge is provided on the inner side wall of the sleeve. By rotating the turntable, the valve disc can be raised and lowered by utilizing the threaded connection between the turntable and the lead screw. At the same time, during the process of the lead screw rotating and raising and lowering, the lubricating oil in the oil tank is absorbed into the first lubricating sponge, which can effectively improve the lubrication effect of the lead screw during use.

[0023] 2. In this utility model, by setting an adjustment device, a valve disc is set in the lower cover body, and a second lubricating sponge is set in the lower cover body. When the valve disc is working, the valve disc can be lubricated by friction between the side wall of the valve disc and the lower cover body, so as to avoid damage to the valve disc during the up and down sliding process and improve the overall service life of the device. Attached Figure Description

[0024] Figure 1 This is a perspective view of a high wear-resistant self-lubricating gate valve for supercritical power plants proposed in this utility model;

[0025] Figure 2 This is a front view of a high wear-resistant self-lubricating gate valve for supercritical power plants proposed in this utility model;

[0026] Figure 3 This is a side view of a high wear-resistant self-lubricating gate valve for supercritical power plants proposed in this utility model;

[0027] Figure 4 This is a cross-sectional view of a high wear-resistant self-lubricating gate valve for supercritical power plants proposed in this utility model.

[0028] Legend:

[0029] 1. Fixing device; 101. Upper cover; 102. Fixing frame; 103. Turntable; 104. Sleeve; 105. Rotating block; 106. Oil tank; 107. First connecting pipe; 108. Second connecting pipe; 109. Fixing plate; 1010. Fixing bolt; 1011. Screw; 1012. First lubricating sponge; 2. Adjusting device; 201. Lower cover; 202. Flange; 203. Mounting hole; 204. Valve disc; 205. Second lubricating sponge; 206. Slide groove. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1-4 This utility model provides an embodiment of a high wear-resistant self-lubricating gate valve for supercritical power plants, comprising a fixing device 1 and an adjusting device 2. The fixing device 1 is located at the top of the adjusting device 2. The fixing device 1 includes an upper cover 101, a fixing plate 109 fixedly connected to one side of the upper cover 101, a second connecting pipe 108 fixedly connected to the middle of the top of the fixing plate 109, a first connecting pipe 107 fixedly connected to the rear end of the oil storage tank 106, a fixing frame 102 fixedly connected to the middle of the top of the upper cover 101, a turntable 103 rotatably connected to the top of the fixing frame 102, a lead screw 1011 rotatably connected to the middle of the inner wall of the turntable 103, and a sleeve 104 fixedly connected to the top of the inner wall of the fixing frame 102. A rotating block 105 is fixedly connected to the bottom of the inner side wall. Fixing bolts 1010 are threadedly connected to both sides of the rotating block 105. A first lubricating sponge 1012 is fixedly connected to the inner side wall of the sleeve 104. By setting the fixing device 1, a sleeve 104 is set on the inner side wall of the fixing frame 102, and a first lubricating sponge 1012 is set on the inner side wall of the sleeve 104. By rotating the turntable 103, the valve disc 204 can be raised and lowered by the threaded connection between the turntable 103 and the lead screw 1011. At the same time, during the rotation and raising and lowering of the lead screw 1011, the lubricating oil in the oil tank 106 is absorbed into the first lubricating sponge 1012, which can effectively improve the lubrication effect of the lead screw 1011 during use.

[0032] The adjusting device 2 includes a lower cover 201, with flanges 202 fixedly connected to both ends of the lower cover 201. The sidewalls of the two flanges 202 are each arranged in a circumferential array with several mounting holes 203. A sliding groove 206 is formed in the middle of the inner sidewall of the lower cover 201, and a valve disc 204 is slidably connected to the inner sidewall of the sliding groove 206. A second lubricating sponge 205 is fixedly connected to the upper part of the middle of the inner sidewall of the lower cover 201. The lower cover 201 is fixedly connected to the bottom end of the upper cover 101. By setting the adjusting device 2, a valve disc 204 is installed in the lower cover 201, and a second lubricating sponge 205 is also installed in the lower cover 201. When the valve disc 204 is working, the friction between the sidewall of the valve disc 204 and the lower cover 201 lubricates the valve disc 204, preventing damage during its up-and-down sliding and improving the overall service life of the device.

[0033] The bottom end of the lead screw 1011 passes through the top end of the fixed frame 102 and is rotatably connected to the middle of the top end of the rotating block 105 and the top end of the valve disc 204. The other end of the first connecting pipe 107 passes through the side wall of the upper cover 101 and is connected to the second lubricating sponge 205. The other end of the second connecting pipe 108 passes through the side wall of the sleeve 104 and is connected to the first lubricating sponge 1012. Two fixing bolts 1010 pass through the rotating block 105 and are rotatably connected to the two sides of the top end of the upper cover 101. The side wall of the valve disc 204 is slidably connected to the inner side wall of the second lubricating sponge 205. The bottom end of the upper cover 101 and the top end of the lower cover 201 are mutually adapted.

[0034] Working principle: By setting a fixing device 1, a sleeve 104 is set on the inner side wall of the fixing frame 102, and a first lubricating sponge 1012 is set on the inner side wall of the sleeve 104. By rotating the turntable 103, the valve disc 204 can be raised and lowered through the threaded connection between the turntable 103 and the lead screw 1011. At the same time, during the rotation and raising and lowering of the lead screw 1011, the lubricating oil in the oil tank 106 is absorbed into the first lubricating sponge 1012, which can effectively improve the lubrication effect of the lead screw 1011 during use. By setting an adjusting device 2, the valve disc 204 is set in the lower cover 201, and a second lubricating sponge 205 is set in the lower cover 201. When the valve disc 204 is working, the friction between the side wall of the valve disc 204 and the lower cover 201 can lubricate the valve disc 204, prevent the valve disc 204 from being damaged during the up and down sliding process, and improve the overall service life of the device.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-wear-resistant self-lubricating gate valve for supercritical power stations, comprising a fixing device (1) and a regulating device (2), the fixing device (1) is arranged at the top end of the regulating device (2), characterized in that: The fixed device (1) includes an upper cover body (101) and an oil storage tank (106), one side of the upper cover body (101) is fixedly connected with a fixed plate (109), the top end of the fixed plate (109) is fixedly connected with a second connecting pipe (108), the rear end of the oil storage tank (106) is fixedly connected with a first connecting pipe (107), the top end of the upper cover body (101) is fixedly connected with a fixing frame (102), the top end of the fixing frame (102) is rotatably connected with a rotating disc (103), the inner side wall of the rotating disc (103) is rotatably connected with a lead screw (1011), the inner side wall of the fixing frame (102) is fixedly connected with a sleeve (104), the inner side wall of the fixing frame (102) is fixedly connected with a rotating block (105), the rotating block (105) is threadedly connected with fixed bolts (1010) on the two sides, and the inner side wall of the sleeve (104) is fixedly connected with a first lubricating sponge (1012).

2. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 1, characterized in that: The adjusting device (2) includes a lower cover body (201), the two ends of the lower cover body (201) are fixedly connected with flanges (202), the side walls of the two flanges (202) are circularly arranged with a plurality of mounting holes (203), the inner side wall of the lower cover body (201) is provided with a sliding groove (206) in the middle, the inner side wall of the sliding groove (206) is slidably connected with a valve clack (204), the inner side wall of the lower cover body (201) is fixedly connected with a second lubricating sponge (205) above the middle, and the lower cover body (201) is fixedly connected with the upper cover body (101) at the bottom.

3. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 1, characterized in that: The bottom end of the lead screw (1011) penetrates through the top end of the fixing frame (102) and is rotatably connected with the top end of the rotating block (105) and the top end of the valve clack (204).

4. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 1, characterized in that: The other end of the first connecting pipe (107) penetrates through the side wall of the upper cover body (101) and communicates with the second lubricating sponge (205).

5. A high abrasion resistant self-lubricating gate valve for supercritical power plants according to claim 1, characterized in that: The other end of the second connecting pipe (108) penetrates through the side wall of the sleeve (104) and communicates with the first lubricating sponge (1012).

6. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 1, characterized in that: The two fixed bolts (1010) are rotatably connected with the top ends of the rotating block (105) and the upper cover body (101) on the two sides.

7. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 2, characterized in that: The side wall of the valve clack (204) is slidably connected with the inner side wall of the second lubricating sponge (205).

8. A high-wear-resistant self-lubricating gate valve for supercritical power stations according to claim 2, characterized in that: The bottom end of the upper cover body (101) is matched with the top end of the lower cover body (201).

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