Low-temperature flange stainless steel gate valve

Abstract

The utility model discloses a low-temperature flange stainless steel gate valve which comprises a stainless steel pipe installed on the right side of a low-temperature stainless steel gate valve body, a stainless steel feeding pipe is arranged on the right side of the stainless steel pipe, a stainless steel filtering pipe is welded to the left side of the stainless steel feeding pipe, and the stainless steel pipe and the stainless steel filtering pipe are welded. And the stainless steel feeding pipe is higher than the stainless steel pipe, an impurity hopper is welded to the bottom of the stainless steel filtering pipe, and a discharging switch is installed at the bottom of the impurity hopper. As the stainless steel feeding pipe is higher than the stainless steel pipe, when entering the inner cavity of the stainless steel pipe through the stainless steel feeding pipe, materials can enter the inner cavity of the filter cartridge to be filtered and simultaneously drive the rotating shaft I and the rotating shaft II to rotate; impurities on the surface of the filter cartridge are scraped through rotation of a scraper and fall into an inner cavity of an impurity hopper to be stored, and the impurities are cleaned by turning on a discharging switch, so that the impurities are convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of low-temperature gate valves, in particular to a low-temperature flange stainless steel gate valve. Background Art

[0002] The opening and closing parts of the cryogenic gate valve are gate plates, the movement direction of which is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The flanged stainless steel cryogenic gate valve is suitable for pipelines of various corrosive media, and has good corrosion resistance and sufficient strength.

[0003] The patent number is CN202122437090.9 and the patent name is a low-temperature gate valve. It discloses a low-temperature gate valve, including a valve body, an upper valve and a connecting pipe; an upper valve is arranged above the valve body, and an upper valve is arranged above the valve body; a valve stem is arranged inside the upper valve, channels are arranged on both sides of the valve body, and channels are arranged inside the channels; by installing the filter plate inside the channel, impurities in the water flow can be preliminarily filtered to avoid corrosion of the inner wall of the valve body, thereby causing damage to the gate valve.

[0004] Although the filtering structure in the above-mentioned low-temperature gate valve structure can effectively filter impurities in the water flow and avoid corrosion of the inner wall of the valve body, the filtered impurities cannot be discharged, and the filter plate needs to be removed and replaced regularly. When the filter plate is disassembled, the pipe body needs to be removed, which makes maintenance and cleaning inconvenient. Utility Model Content

[0005] The utility model aims to provide a low-temperature flange stainless steel gate valve to solve the technical problems mentioned in the above background technology.

[0006] The utility model solves the above technical problems with the following technical solutions: a low-temperature flange stainless steel gate valve, comprising a stainless steel tube installed on the right side of the low-temperature stainless steel gate valve body: a stainless steel feed pipe is arranged on the right side of the stainless steel pipe, a stainless steel filter pipe is welded to the left side of the stainless steel feed pipe, the stainless steel pipe and the stainless steel filter pipe are welded, the position of the stainless steel feed pipe is higher than the position of the stainless steel pipe, an impurity bucket is welded to the bottom of the stainless steel filter pipe, a discharge switch is installed at the bottom of the impurity bucket, gate valve flanges are welded on both sides of the low-temperature stainless steel gate valve body, a rotating shaft 1 extending to the outside is rotatably connected to the top of the inner cavity of the stainless steel filter pipe, a rotating blade is fixedly connected to the surface of the rotating shaft 1, and the rotating blade is The top of the inner cavity of the stainless steel filter tube rotates, and the front and rear sides of the top of the stainless steel feed tube are rotatably connected with a transmission shaft, the transmission shaft and the rotating shaft one are connected by a conveyor belt transmission, and the opposite side of the transmission shaft is fixedly connected with a bevel gear one, the inner cavity of the stainless steel filter tube is rotatably connected with a rotating shaft two extending to the outside, and the top of the rotating shaft two is fixedly connected with a bevel gear two, and the bevel gear two and the bevel gear one are meshed, and the inner cavity of the stainless steel filter tube is provided with a filter cartridge, and the filter cartridge and the inner cavity of the stainless steel filter tube are fitted, and the bottom of the rotating shaft two extends to the inner cavity of the filter cartridge and is fixedly connected with a plurality of connecting rods, and the end of the connecting rod away from the rotating shaft two is fixedly connected with a scraper, and the scraper slides on the inner surface of the filter cartridge.

[0007] Preferably, a protective cover is fixedly connected to the top of the stainless steel feed pipe, and the transmission shaft, conveyor belt and bevel gear all move in the inner cavity of the protective cover.

[0008] Preferably, the low-temperature stainless steel gate valve body and the stainless steel pipe are detachably fixedly connected via a connecting flange.

[0009] Preferably, the surfaces on the front and rear sides of the rotating shaft and the surface on the opposite side of the transmission shaft are fixedly connected with gears, the inner side of the conveyor belt is provided with teeth, and the gears are meshed with the inner surface of the conveyor belt.

[0010] Preferably, support plates are welded to both the front and rear sides of the top of the stainless steel feed pipe, and the transmission shaft rotates in the inner cavity of the support plate and extends to the outside of the inner cavity of the support plate.

[0011] 1. The beneficial effect of the utility model is as follows: the utility model sets the stainless steel feed pipe higher than the stainless steel pipe. When the material enters the inner cavity of the stainless steel pipe through the stainless steel feed pipe, it will enter the inner cavity of the filter cartridge for filtration and drive the rotating shaft 1 and the rotating shaft 2 to rotate at the same time. The scraper rotates to scrape off the impurities on the surface of the filter cartridge and drops them into the inner cavity of the impurity bucket for storage. The impurities are cleaned by opening the unloading switch, thereby facilitating the cleaning of the impurities.

[0012] 2. The utility model can scrape off impurities on the inner surface of the filter cartridge by setting a scraper, which can facilitate the cleaning of impurities. Secondly, when the material passes through the filter cartridge and enters the inner cavity of the stainless steel tube, the impurities are continuously removed, thereby improving the efficiency of material filtration.

[0013] 3. The utility model can protect the conveyor belt, bevel gear 1 and bevel gear 2 by setting the protective cover, thereby improving the safety during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0015] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0016] Figure 2 This is a three-dimensional diagram of a protective cover of an embodiment of the utility model when it is removed;

[0017] Figure 3 For an embodiment of the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a partial cross-sectional view of a front view of an embodiment of the utility model.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Low-temperature stainless steel gate valve body, 2. Stainless steel pipe, 3. Stainless steel feed pipe, 4. Protective cover, 5. Stainless steel filter tube, 6. Impurity bucket, 7. Discharge switch, 8. Gate valve flange, 9. Connecting flange, 10. Rotating shaft 1, 11. Rotating blade, 12. Transmission shaft, 13. Gear, 14. Conveyor belt, 15. Bevel gear 1, 16. Rotating shaft 2, 17. Bevel gear 2, 18. Connecting rod, 19. Scraper, 20. Filter cartridge, 21. Support plate. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the low-temperature flange stainless steel gate valve of the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0023] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0024] Figure 1-4A low-temperature flange stainless steel gate valve of an embodiment of the utility model is shown, which includes a stainless steel pipe 2 installed on the right side of a low-temperature stainless steel gate valve body 1: the low-temperature stainless steel gate valve body 1 and the stainless steel pipe 2 are detachably fixedly connected by a connecting flange 9, a stainless steel feed pipe 3 is arranged on the right side of the stainless steel pipe 2, a stainless steel filter pipe 5 is welded to the left side of the stainless steel feed pipe 3, the stainless steel pipe 2 and the stainless steel filter pipe 5 are welded, the position of the stainless steel feed pipe 3 is higher than that of the stainless steel pipe 2, an impurity bucket 6 is welded to the bottom of the stainless steel filter pipe 5, a discharge switch 7 is installed at the bottom of the impurity bucket 6, and gate valves are welded on both sides of the low-temperature stainless steel gate valve body 1. Flange 8, the top of the inner cavity of the stainless steel filter tube 5 is rotatably connected with a rotating shaft 10 extending to the outside, and the surface of the rotating shaft 10 is fixedly connected with a rotating blade 11, and the rotating blade 11 rotates at the top of the inner cavity of the stainless steel filter tube 5. The front and rear sides of the top of the stainless steel feed pipe 3 are rotatably connected with a transmission shaft 12, and the front and rear sides of the top of the stainless steel feed pipe 3 are welded with a support plate 21. The transmission shaft 12 rotates in the inner cavity of the support plate 21 and extends to the outside of the inner cavity of the support plate 21. The transmission shaft 12 and the rotating shaft 10 are connected by a conveyor belt 14. The surfaces of the front and rear sides of the rotating shaft 10 and the surface on the opposite side of the transmission shaft 12 are fixedly connected. Gear 13 and conveyor belt 14 are provided with teeth on the inner side, gear 13 and inner surface of conveyor belt 14 are meshed, bevel gear 15 is fixedly connected to the opposite side of transmission shaft 12, the inner cavity of stainless steel filter tube 5 is rotatably connected with rotating shaft 2 16 extending to the outside, the top of rotating shaft 2 16 is fixedly connected with bevel gear 2 17, bevel gear 2 17 and bevel gear 15 are meshed, the inner cavity of stainless steel filter tube 5 is provided with filter cartridge 20, filter cartridge 20 and the inner cavity of stainless steel filter tube 5 are fitted, the bottom of rotating shaft 2 16 extends to the inner cavity of filter cartridge 20 and is fixedly connected with a plurality of connecting rods 18, the connecting rods 18 are fixed at one end away from rotating shaft 2 16 A scraper 19 is connected, and the scraper 19 slides on the inner surface of the filter cylinder 20. Through the setting of the scraper 19, impurities on the inner surface of the filter cylinder 20 can be scraped off, which can facilitate the cleaning of impurities. Secondly, when the material passes through the filter cylinder 20 and enters the inner cavity of the stainless steel tube 2, the efficiency of material filtration can be improved due to the continuous removal of impurities. The top of the stainless steel feed pipe 3 is fixedly connected with a protective cover 4, and the transmission shaft 12, the conveyor belt 14 and the bevel gear 1 15 all move in the inner cavity of the protective cover 4. Through the setting of the protective cover 4, the conveyor belt 14, the bevel gear 1 15 and the bevel gear 2 17 can be protected, thereby improving its safety during operation.

[0025] Working principle: When the utility model is used, the user sets the stainless steel feed pipe 3 higher than the stainless steel pipe 2. When the material enters the inner cavity of the stainless steel pipe 2 through the stainless steel feed pipe 3, it will first enter the inner cavity of the filter cartridge 20 for filtration and simultaneously drive the rotating blade 11 to rotate, thereby driving the rotating shaft 10 to rotate, and then driving the transmission shaft 12 and the bevel gear 15 to rotate, and then driving the bevel gear 2 17 and the rotating shaft 2 16 to rotate, and finally driving the connecting rod 18 and the scraper 19 to rotate. At this time, the scraper 19 will scrape off the impurities on the surface of the filter cartridge 20, and the scraped impurities will fall into the inner cavity of the impurity bucket 6 for storage. The impurities are cleaned by opening the unloading switch 7, which facilitates the cleaning of the impurities and improves the filtration efficiency of the filter cartridge 20.

[0026] In summary: the low-temperature flange stainless steel gate valve, through the setting of the stainless steel feed pipe 3 being higher than the stainless steel pipe 2, when the material enters the inner cavity of the stainless steel pipe 2 through the stainless steel feed pipe 3, it will enter the inner cavity of the filter cartridge 20 for filtration and simultaneously drive the rotating shaft 10 and the rotating shaft 2 16 to rotate, and the surface impurities of the filter cartridge 20 are scraped off by the rotation of the scraper 19 and fall into the inner cavity of the impurity bucket 6 for storage, and the impurities are cleaned by opening the discharge switch 7, thereby facilitating the cleaning of the impurities.

[0027] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A low temperature flange stainless steel gate valve, characterized in that: The invention comprises a stainless steel pipe (2) installed on the right side of a low-temperature stainless steel gate valve body (1): a stainless steel feed pipe (3) is arranged on the right side of the stainless steel pipe (2), a stainless steel filter pipe (5) is welded on the left side of the stainless steel feed pipe (3), the stainless steel pipe (2) and the stainless steel filter pipe (5) are welded, the position of the stainless steel feed pipe (3) is higher than the position of the stainless steel pipe (2), an impurity bucket (6) is welded on the bottom of the stainless steel filter pipe (5), a discharge switch (7) is installed on the bottom of the impurity bucket (6), gate valve flanges (8) are welded on both the left and right sides of the low-temperature stainless steel gate valve body (1), the top of the inner cavity of the stainless steel filter pipe (5) is rotatably connected to a rotating shaft (10) extending to the outside, the surface of the rotating shaft (10) is fixedly connected to a rotating blade (11), the rotating blade (11) rotates at the top of the inner cavity of the stainless steel filter pipe (5), and the front and rear ends of the top of the stainless steel feed pipe (3) are connected to the rotating shaft (10) and the rotating blade (11) rotates. Both sides are rotatably connected with a transmission shaft (12), the transmission shaft (12) and the rotating shaft one (10) are transmission-connected via a conveyor belt (14), the opposite side of the transmission shaft (12) is fixedly connected with a bevel gear one (15), the inner cavity of the stainless steel filter tube (5) is rotatably connected with a rotating shaft two (16) extending to the outside, the top of the rotating shaft two (16) is fixedly connected with a bevel gear two (17), the bevel gear two (17) and the bevel gear one (15) are meshed, the inner cavity of the stainless steel filter tube (5) is provided with a filter cartridge (20), the filter cartridge (20) and the inner cavity of the stainless steel filter tube (5) are fitted, the bottom of the rotating shaft two (16) extends to the inner cavity of the filter cartridge (20) and is fixedly connected with a plurality of connecting rods (18), the end of the connecting rod (18) away from the rotating shaft two (16) is fixedly connected with a scraper (19), the scraper (19) slides on the inner surface of the filter cartridge (20).

2. A low temperature flange stainless steel gate valve according to claim 1, characterized in that: The top of the stainless steel feed pipe (3) is fixedly connected with a protective cover (4), and the transmission shaft (12), the conveyor belt (14) and the bevel gear (15) all move in the inner cavity of the protective cover (4).

3. A low temperature flange stainless steel gate valve according to claim 2, characterized in that: The low-temperature stainless steel gate valve body (1) and the stainless steel pipe (2) are detachably fixedly connected via a connecting flange (9).

4. A low temperature flange stainless steel gate valve according to claim 3, characterized in that: The surfaces on the front and rear sides of the rotating shaft (10) and the surface on the opposite side of the transmission shaft (12) are fixedly connected with gears (13), and the inner side of the conveyor belt (14) is provided with teeth, and the gears (13) and the inner surfaces of the conveyor belt (14) are meshed.

5. A low temperature flange stainless steel gate valve according to claim 4, characterized in that: Support plates (21) are welded to both the front and rear sides of the top of the stainless steel feed pipe (3), and the transmission shaft (12) rotates in the inner cavity of the support plate (21) and extends to the outside of the inner cavity of the support plate (21).

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