Low-temperature high-pressure ball valve

Abstract

The utility model relates to the technical field of low-temperature and high-pressure ball valves, in particular to a low-temperature and high-pressure ball valve which comprises a ball valve body, a handle is arranged at the top end of the ball valve body, connecting pipes are arranged at the two ends of the ball valve body, a filter box is arranged at one ends of the connecting pipes, and inserting grooves are formed in the two sides of the top end of the filter box. A slot is formed in the ball valve body, a filter screen is arranged in the slot, connecting plates are arranged on the two sides of the top end of the filter box, the top end of the filter screen is connected with the connecting plates, the filter box is installed at one end of the ball valve body, and when the ball valve is used, a medium entering the ball valve body can be filtered through the filter screen in the filter box, and impurities in the medium are blocked; according to the ball valve, impurities are prevented from entering the ball valve body, the durability of the ball valve body is effectively improved, a brush plate is arranged, under driving of a motor, a filter screen can be cleaned, the impurities on the filter screen are cleaned down, then the impurities are discharged to a blow-off pipe through a through groove, and the convenience of cleaning the filter screen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature and high-pressure ball valves, in particular to a low-temperature and high-pressure ball valve. Background Art

[0002] At present, with the rapid development of the petroleum, chemical and gas industries, especially the rapid development of liquefied natural gas as an emerging energy source, liquefied natural gas has put forward higher and stricter requirements on the cryogenic ball valves used in liquefied natural gas projects due to its low temperature, flammability and explosiveness. It is required that the liquefied natural gas ultra-low temperature ball valve has a long service life and is safe and reliable.

[0003] The existing low-temperature and high-pressure ball valve usually does not have a filtering mechanism when in use, which causes the stains in the fluid medium to remain and accumulate inside the ball valve, which not only affects the use of the ball valve, but also easily causes damage to the ball valve. In addition, the impurities in the fluid medium are easily accumulated on the filter net, causing the filter net to be blocked, and the filter net is difficult to clean, thereby affecting the filtering effect of the filter net. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a low-temperature and high-pressure ball valve with strong practicality.

[0005] The utility model discloses a low-temperature and high-pressure ball valve, comprising a ball valve body, a handle is arranged at the top of the ball valve body, connecting pipes are arranged at both ends of the ball valve body, a filter box is arranged at one end of the connecting pipe, slots are arranged inside the two sides of the top of the filter box, a filter screen is arranged inside the slot, connecting plates are arranged at the two sides of the top of the filter box, the top of the filter screen is connected to the connecting plates, sewage pipes are arranged at the two sides of the bottom of the filter box, through grooves are arranged at the bottom of the two sides of the filter box, the through grooves are connected to the sewage pipe, a fixed block is arranged on one side of the filter box, and a filter screen is arranged inside the fixed block. A mounting groove is provided, a transmission rod is provided inside the mounting groove, a first bevel gear is provided at one end of the transmission rod, a rotating rod is provided on one side of the mounting groove, a second bevel gear is provided at one end of the rotating rod, the second bevel gear is meshingly connected with the first bevel gear, a brush plate is provided at the other end of the rotating rod, the brush plate is located on the side of the filter screen, a worm gear is provided at the other end of the transmission rod, a fixed frame is provided on the side of the filter box, the worm gear is located inside the fixed frame, a worm is provided on one side of the fixed frame, the worm is meshingly connected with the worm wheel, and a motor is provided at one end of the worm.

[0006] The utility model provides a low-temperature and high-pressure ball valve, wherein sliding grooves are arranged on both sides of the slot, and sliding bars are arranged on both sides of the filter screen, and the sliding bars are slidably arranged inside the sliding grooves.

[0007] The utility model discloses a low-temperature and high-pressure ball valve, wherein the connecting plate and the filter screen are fixedly connected, and a handle is arranged on the top of the connecting plate.

[0008] The utility model discloses a low-temperature and high-pressure ball valve, wherein the filter screen is made of stainless steel.

[0009] The utility model provides a low-temperature and high-pressure ball valve, wherein a connecting flange is arranged on one side of the filter box, and the connecting flange is connected to the connecting pipe by bolts.

[0010] The utility model provides a low-temperature and high-pressure ball valve, wherein a connector is arranged at the bottom end of the sewage pipe, and the connector is threadedly connected to the sewage pipe.

[0011] The utility model discloses a low-temperature and high-pressure ball valve, wherein the motor is a stepping motor.

[0012] The utility model provides a low-temperature and high-pressure ball valve, wherein the filter box is provided with an anti-corrosion layer, and the anti-corrosion layer is made of epoxy resin.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the filter box is installed at one end of the ball valve body. When in use, the medium entering the ball valve body can be filtered through the filter mesh inside the filter box, and the impurities therein are blocked, thereby preventing the impurities from entering the ball valve body, effectively improving the durability of the ball valve body, and through the setting of the brush plate, the filter mesh can be cleaned under the drive of the motor, and the impurities on the filter mesh can be cleaned off and then discharged to the drain pipe through the through groove, thereby improving the convenience of cleaning the filter mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This utility model Figure 1 A schematic diagram of the enlarged structure of the filter box;

[0016] Figure 3 This utility model Figure 2 A schematic diagram of the internal structure from a side view;

[0017] Figure 4 This utility model Figure 2 Schematic diagram of the disassembled structure;

[0018] Figure 5 This utility model Figure 2 Schematic diagram of some internal structures;

[0019] 1. Ball valve body; 2. Handle; 3. Connecting pipe; 4. Filter box; 5. Connecting plate; 6. Fixed frame; 7. Fixed block; 8. Brush plate; 9. Drain pipe; 10. Filter screen; 11. Slot; 12. Transmission rod; 13. First bevel gear; 14. Turning rod; 15. Second bevel gear; 16. Worm gear; 17. Worm; 18. Motor; 19. Through slot. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figures 1 to 5 The utility model is a low-temperature and high-pressure ball valve, comprising a ball valve body 1, a handle 2 is provided at the top of the ball valve body 1, connecting pipes 3 are provided at both ends of the ball valve body 1, a filter box 4 is provided at one end of the connecting pipe 3, slots 11 are provided inside the top two sides of the filter box 4, a filter screen 10 is provided inside the slot 11, connecting plates 5 are provided at the top two sides of the filter box 4, the top of the filter screen 10 is connected to the connecting plate 5, sewage pipes 9 are provided at both sides of the bottom of the filter box 4, through grooves 19 are provided at the bottom of the filter box 4, and the through grooves 19 are connected to the sewage pipe 9, a fixing block 7 is provided on one side of the filter box 4, a mounting groove is provided inside the fixing block 7, a transmission rod 12 is provided inside the mounting groove, a first bevel gear 13 is provided at one end of the transmission rod 12, a rotating rod 14 is provided on one side of the mounting groove, a second bevel gear 15 is provided at one end of the rotating rod 14, and the second bevel gear 15 is connected to the first bevel gear The wheel 13 is meshingly connected, and a brush plate 8 is provided at the other end of the rotating rod 14, and the brush plate 8 is located on the side of the filter screen 10. A worm gear 16 is provided at the other end of the transmission rod 12. A fixed frame 6 is provided on the side of the filter box 4, and the worm gear 16 is located inside the fixed frame 6. A worm 17 is provided on one side of the fixed frame 6, and the worm 17 is meshingly connected with the worm gear 16. A motor 18 is provided at one end of the worm 17; the filter box 4 is installed at one end of the ball valve body 1. When in use, the medium entering the ball valve body 1 can be filtered through the filter screen 10 inside the filter box 4, and the impurities therein are blocked, thereby preventing impurities from entering the ball valve body 1, effectively improving the durability of the ball valve body 1, and through the setting of the brush plate 8, driven by the motor 18, the filter screen 10 can be cleaned, and the impurities on the filter screen 10 can be cleaned down, and then discharged to the drain pipe 9 through the through groove 19, thereby improving the convenience of cleaning the filter screen 10.

[0022] The utility model provides a low-temperature and high-pressure ball valve, wherein slide grooves are arranged on both sides of the slot 11, and slide bars are arranged on both sides of the filter 10, and the slide bars are slidably arranged inside the slide grooves, making the filter 10 more convenient to install.

[0023] The utility model provides a low-temperature and high-pressure ball valve, wherein the connecting plate 5 and the filter screen 10 are fixedly connected, and a handle is provided on the top of the connecting plate 5 to facilitate and quickly draw out the filter screen 10 from the slot 11.

[0024] The utility model provides a low-temperature and high-pressure ball valve, wherein a connecting flange is arranged on one side of the filter box 4, and the connecting flange is connected to the connecting pipe 3 by bolts, so that the filter box 4 can be easily disassembled and installed.

[0025] The utility model provides a low-temperature and high-pressure ball valve, wherein a connector is provided at the bottom end of the sewage pipe 9 , and the connector is threadedly connected to the sewage pipe 9 , thereby improving the practicability of the sewage pipe 9 .

[0026] The utility model provides a low-temperature and high-pressure ball valve, wherein the filter box 4 is provided with an anti-corrosion layer, and the anti-corrosion layer is made of epoxy resin, thereby improving the durability of the filter box 4.

[0027] The utility model discloses a low-temperature and high-pressure ball valve. When working, the filter box 4 is installed on the connecting pipe 3 of the ball valve body 1 through the connecting flange. When in use, the medium entering the ball valve body 1 can be filtered through the filter screen 10 inside the filter box 4, and the impurities therein are blocked to ensure the stability of the ball valve body 1 when in use. When the filter screen 10 needs to be disassembled, the handle is manually lifted, and the handle drives the connecting plate 5, and the connecting plate 5 drives the filter screen 10 to be drawn out of the slot 11, which is convenient for cleaning and replacement. When the filter screen 10 needs to be cleaned, the motor 18 is turned on, and the filter screen 10 is removed. The motor 18 drives the worm 17, and the worm 17 drives the worm wheel 16 by meshing. The worm wheel 16 drives the transmission rod 12, and the transmission rod 12 drives the second bevel gear 15 through the first bevel gear 13. The second bevel gear 15 drives the rotating rod 14 to rotate. The rotating rod 14 drives the brush plate 8, and the brush plate 8 rotates on the side of the filter screen 10 to clean the impurities on the filter screen 10, and then the sewage pipe 9 is opened. The cleaned impurities enter the sewage pipe 9 through the through groove 19 and are finally discharged from the filter box 4. In this way, there is no need to clean the filter screen 10, and the filter screen 10 can be quickly cleaned.

[0028] The installation method, connection method or setting method of the low-temperature and high-pressure ball valve of the utility model are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; the motor 18 of the low-temperature and high-pressure ball valve of the utility model is purchased on the market, and technicians in the industry only need to install and operate it according to the accompanying instruction manual.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A low temperature and high pressure ball valve, characterized in that: The invention comprises a ball valve body (1), wherein a handle (2) is arranged at the top of the ball valve body (1), connecting pipes (3) are arranged at both ends of the ball valve body (1), a filter box (4) is arranged at one end of the connecting pipe (3), slots (11) are arranged inside the two sides of the top of the filter box (4), a filter screen (10) is arranged inside the slot (11), connecting plates (5) are arranged at the two sides of the top of the filter box (4), the top of the filter screen (10) is connected to the connecting plates (5), sewage pipes (9) are arranged at the two sides of the bottom of the filter box (4), through grooves (19) are arranged at the bottom of the two sides of the filter box (4), and the through grooves (19) are connected to the sewage pipe (9), a fixing block (7) is arranged at one side of the filter box (4), an installation groove is arranged inside the fixing block (7), and the installation groove has a A transmission rod (12) is provided, one end of the transmission rod (12) is provided with a first bevel gear (13), a rotating rod (14) is provided on one side of the mounting groove, one end of the rotating rod (14) is provided with a second bevel gear (15), the second bevel gear (15) is meshingly connected with the first bevel gear (13), the other end of the rotating rod (14) is provided with a brush plate (8), the brush plate (8) is located on the side of the filter screen (10), the other end of the transmission rod (12) is provided with a worm gear (16), a fixed frame (6) is provided on the side of the filter box (4), the worm gear (16) is located inside the fixed frame (6), a worm (17) is provided on one side of the fixed frame (6), the worm (17) is meshingly connected with the worm gear (16), and one end of the worm (17) is provided with a motor (18).

2. A low temperature and high pressure ball valve as claimed in claim 1, characterized in that: Slide grooves are arranged on both sides of the slot (11), and slide bars are arranged on both sides of the filter screen (10), and the slide bars are slidably arranged inside the slide grooves.

3. A low temperature and high pressure ball valve as claimed in claim 2, characterized in that: The connecting plate (5) is fixedly connected to the filter screen (10), and a handle is provided at the top of the connecting plate (5).

4. A low temperature and high pressure ball valve as claimed in claim 3, characterized in that: The filter screen (10) is made of stainless steel.

5. A low temperature and high pressure ball valve as claimed in claim 4, characterized in that: A connecting flange is provided on one side of the filter box (4), and the connecting flange is connected to the connecting pipe (3) by bolts.

6. A low temperature and high pressure ball valve as claimed in claim 5, characterized in that: A connector is provided at the bottom end of the sewage pipe (9), and the connector is threadedly connected to the sewage pipe (9).

7. A low temperature and high pressure ball valve as claimed in claim 6, characterized in that: The motor (18) is a stepper motor.

8. A low temperature and high pressure ball valve as claimed in claim 7, characterized in that: The filter box (4) is provided with an anti-corrosion layer, and the anti-corrosion layer is made of epoxy resin.

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