Anti-blocking device for drain pipe of liquid separation tank

Abstract

The utility model relates to the technical field of liquid separation tanks, in particular to a liquid separation tank drain pipe anti-blocking device which comprises a liquid phase outlet pipe, an external pipe, a sealing assembly and a filtering assembly, the external pipe is fixedly installed at the bent position of the liquid phase outlet pipe to form a three-way structure, a dirt storage groove is formed in the inner wall of the external pipe, and the sealing assembly comprises a pull rod. The outer wall of the pull rod is sleeved with a spring, the outer wall of the pull rod is sleeved with a first sealing plug and a second sealing plug, the first sealing plug is detachably installed at the end of the outer connecting pipe, the inner wall of the first sealing plug is fixedly connected with a second sealing ring, and the second sealing ring is in sliding contact with the pull rod. According to the device disclosed by the utility model, impurities on the filter screen can be quickly cleaned under the condition that the filter screen is not detached, so that the liquid separation effect of the liquid separation tank is prevented from becoming poor, the quality of steam is prevented from being influenced, meanwhile, adverse effects on safe and stable operation of the device are also prevented, and meanwhile, the time for cleaning the impurities is shortened.

Description

Technical Field

[0001] This utility model relates to the field of liquid separator technology, and more specifically, to a device for preventing blockage of the drain pipe of a liquid separator. Background Technology

[0002] Steam generated by the steam generator enters a steam separator to further improve steam quality. In the steam separator, the gas phase flows from the outlet to the steam superheater, while the liquid phase returns to the steam generator or enters the steam generator's continuous drain line.

[0003] However, in actual operation, the demister mesh at the top of the separator often falls off or impurities fall and block the liquid phase pipeline. This not only leads to a decrease in the separation effect of the separator and affects the quality of the steam, but also has an adverse impact on the safe and stable operation of the unit. Utility Model Content

[0004] This utility model proposes an anti-clogging device for the drain pipe of a separator, which can quickly clean impurities on the filter screen without disassembling it, thus preventing the separator from deteriorating and affecting the quality of steam. It also avoids adverse effects on the safe and stable operation of the device and shortens the time required to clean impurities.

[0005] This utility model proposes an anti-clogging device for the drain pipe of a liquid separator, which includes a liquid phase outlet pipe, an external pipe, a sealing assembly, and a filter assembly.

[0006] The external connector is fixedly installed at the bend of the liquid phase outlet pipe to form a three-way structure, and a scale storage tank is provided on the inner wall of the external connector.

[0007] The sealing assembly includes a pull rod, a spring sleeved on the outer wall of the pull rod, a first sealing plug and a second sealing plug sleeved on the outer wall of the pull rod, the first sealing plug being detachably installed at the end of the outer tube, a second sealing ring being fixedly connected to the inner wall of the first sealing plug, the second sealing ring slidingly contacting the pull rod, a third sealing ring being fixedly connected to the outer wall of the second sealing plug, the third sealing ring slidingly contacting the inner wall of the outer tube, a fourth sealing ring being fixedly connected to the inner wall of the second sealing plug, the fourth sealing ring slidingly contacting the pull rod, and a limit ring being fixedly connected to the outer wall of the pull rod.

[0008] The filter assembly includes a filter screen, which is rotatably mounted on a pull rod. A cleaning brush is fixedly connected to the outer wall of the pull rod, and the cleaning brush makes frictional contact with the filter screen. A fifth sealing ring is fixedly connected to the outer circumference of the filter screen, and the fifth sealing ring makes sliding contact with the inner wall of the liquid phase outlet pipe.

[0009] Furthermore, one end of the spring is fixedly connected to the first sealing plug, and the other end of the spring is fixedly connected to the second sealing plug.

[0010] Furthermore, the end of the pull rod passes through the first sealing plug and extends to the outside of the outer tube, and the end of the pull rod is fixedly connected to a pull ring.

[0011] Furthermore, the outer pipe end is provided with a threaded groove, and a sealing pipe is threadedly connected to the threaded groove.

[0012] Furthermore, a first sealing ring is fixedly installed on the inner wall of the threaded groove, and the outer wall of the first sealing ring is in contact with the sealing tube by compression.

[0013] Furthermore, a connecting sleeve is fixedly connected to the outer wall of the filter screen, and a fifth sealing ring is also fixedly installed on the outer wall of the connecting sleeve.

[0014] Furthermore, it also includes a separatory tank, the bottom of which is fixedly connected to the liquid phase outlet pipe, and multiple support feet are fixedly installed at the bottom of the separatory tank.

[0015] Furthermore, a steam outlet pipe is fixedly installed on the top of the separator, and a steam inlet pipe is fixedly installed on the outer wall of the separator.

[0016] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0017] 1. By rotating the sealing tube, the sealing tube is detached from the end of the outer connecting tube. Pulling the pull ring moves the pull rod, which in turn moves the filter screen. The limiting ring on the pull rod compresses the second sealing plug, causing it to slide outward along the outer connecting tube. At this time, the spring is compressed. When the spring is fully compressed, the filter screen moves to the scale storage tank position. Rotating the pull rod rotates the cleaning brush, which cleans the outer wall of the filter screen. The fallen impurities will enter the scale storage tank. This design allows operators to quickly clean impurities on the filter screen without disassembling it, preventing a decrease in the separation effect of the separator and affecting the quality of steam. It also avoids adverse effects on the safe and stable operation of the device and shortens the time required for cleaning impurities.

[0018] 2. Push the lever in the opposite direction to move the filter screen into the liquid phase outlet pipe. At this time, under the elastic force of the spring, the second sealing plug is pushed into the outer pipe. This design can realize the rapid reset of the second sealing plug. At the same time, the setting of the second sealing plug, the third sealing ring and the fourth sealing ring can seal the outer pipe to prevent liquid from entering the sealed pipe and causing liquid loss.

[0019] 3. When the filter screen moves, it can drive the connecting sleeve to move, and the connecting sleeve can drive the fifth sealing ring to move, which can further improve the sealing performance of the structure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the external pipe of this utility model;

[0023] Figure 4 This is a schematic diagram of the installation structure of the tie rod of this utility model;

[0024] Figure 5 This is a schematic diagram of the installation structure of the filter screen of this utility model.

[0025] In the diagram: 1. Separator; 2. Liquid phase outlet pipe; 3. External pipe; 4. Scale storage tank; 5. Threaded groove; 6. First sealing ring; 7. Sealing pipe; 8. Pull rod; 9. Pull ring; 10. First sealing plug; 11. Second sealing ring; 12. Spring; 13. Second sealing plug; 14. Third sealing ring; 15. Fourth sealing ring; 16. Limiting ring; 17. Cleaning brush; 18. Filter screen; 19. Connecting sleeve; 20. Fifth sealing ring; 21. Support foot; 22. Steam outlet pipe; 23. Steam inlet pipe. Detailed Implementation

[0026] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] like Figures 1-5 As shown, a device for preventing blockage of the drain pipe of a separator includes a separator 1, a liquid phase outlet pipe 2, an external pipe 3, a sealing assembly, and a filter assembly.

[0028] The external pipe 3 is fixedly installed at the bend of the liquid phase outlet pipe 2 to form a three-way structure, and a scale storage tank 4 is opened on the inner wall of the external pipe 3;

[0029] The sealing assembly includes a pull rod 8, a spring 12 sleeved on the outer wall of the pull rod 8, a first sealing plug 10 and a second sealing plug 13 sleeved on the outer wall of the pull rod 8, one end of the spring 12 being fixedly connected to the first sealing plug 10, and the other end of the spring 12 being fixedly connected to the second sealing plug 13, the first sealing plug 10 being detachably installed at the end of the outer tube 3, a second sealing ring 11 being fixedly connected to the inner wall of the first sealing plug 10, the second sealing ring 11 being in sliding contact with the pull rod 8, a third sealing ring 14 being fixedly connected to the outer wall of the second sealing plug 13, the third sealing ring 14 being in sliding contact with the inner wall of the outer tube 3, a fourth sealing ring 15 being fixedly connected to the inner wall of the second sealing plug 13, the fourth sealing ring 15 being in sliding contact with the pull rod 8, and a limit ring 16 being fixedly connected to the outer wall of the pull rod 8;

[0030] The spring 12 enables the second sealing plug 13 to be quickly reset; the setting of the second sealing plug 13, the third sealing ring 14 and the fourth sealing ring 15 can seal the external pipe 3 to prevent liquid from entering the sealing pipe 7 and causing liquid loss.

[0031] The filter assembly includes a filter screen 18, which is rotatably mounted on a pull rod 8. A cleaning brush 17 is fixedly connected to the outer wall of the pull rod 8. The cleaning brush 17 is in frictional contact with the filter screen 18. A fifth sealing ring 20 is fixedly connected to the outer circumference of the filter screen 18. The fifth sealing ring 20 is in sliding contact with the inner wall of the liquid phase outlet pipe 2.

[0032] Rotating the lever 8 drives the cleaning brush 17 to rotate, allowing the cleaning brush 17 to clean the outer wall of the filter screen 18. The fallen impurities will enter the scale storage tank 4. This design allows operators to quickly clean the impurities on the filter screen 18 without disassembling it, preventing the separation effect of the separator 1 from deteriorating and affecting the quality of the steam. It also avoids adverse effects on the safe and stable operation of the device and shortens the time required to clean impurities.

[0033] like Figure 2 As shown, the end of the pull rod 8 passes through the first sealing plug 10 and extends to the outside of the outer tube 3, and the end of the pull rod 8 is fixedly connected to the pull ring 9.

[0034] like Figure 2 and Figure 3 As shown, the outer pipe 3 has a threaded groove 5 at its end, and a sealing pipe 7 is threadedly connected to the threaded groove 5.

[0035] like Figure 2 and Figure 3 As shown, a first sealing ring 6 is fixedly installed on the inner wall of the threaded groove 5, and the outer wall of the first sealing ring 6 is in contact with the sealing tube 7 by compression.

[0036] like Figure 5As shown, a connecting sleeve 19 is fixedly connected to the outer wall of the filter screen 18, and a fifth sealing ring 20 is also fixedly installed on the outer wall of the connecting sleeve 19; when the filter screen 18 moves, it can drive the connecting sleeve 19 to move, and the connecting sleeve 19 drives the fifth sealing ring 20 to move, which can further improve the sealing performance of the structure.

[0037] like Figure 1 As shown, the bottom of the separator 1 is fixedly connected to the liquid phase outlet pipe 2, multiple support feet 21 are fixedly installed at the bottom of the separator 1, a steam outlet pipe 22 is fixedly installed at the top of the separator 1, and a steam inlet pipe 23 is fixedly installed on the outer wall of the separator 1.

[0038] Working principle: By rotating the sealing tube 7, the sealing tube 7 is removed from the end of the outer tube 3. By pulling the pull ring 9, the pull rod 8 is moved, and the pull rod 8 moves the filter screen 18. The limiting ring 16 on the pull rod 8 squeezes the second sealing plug 13, and the second sealing plug 13 slides outward along the outer tube 3. At this time, the spring 12 is compressed. When the spring 12 is fully compressed, the filter screen 18 moves to the position of the scale storage tank 4. By rotating the pull rod 8, the cleaning brush 17 is rotated, so that the cleaning brush 17 cleans the outer wall of the filter screen 18, and the fallen impurities will enter the scale storage tank 4.

[0039] After cleaning, push the lever 8 in the opposite direction to move the filter screen 18 into the liquid phase outlet pipe 2. At this time, under the elastic force of the spring 12, push the second sealing plug 13 into the outer pipe 3.

[0040] When the liquid flows through the liquid phase outlet pipe 2, impurities in the liquid are filtered through the filter screen 18;

[0041] When the filter screen 18 moves, it can drive the connecting sleeve 19 to move, and the connecting sleeve 19 drives the fifth sealing ring 20 to move, which can further improve the sealing performance of the structure.

[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A device for preventing blockage of the drain pipe of a separatory tank, characterized in that, include: Liquid phase outlet pipe (2); An external pipe (3) is fixedly installed at the bend of the liquid phase outlet pipe (2) to form a three-way structure. A scale storage tank (4) is provided on the inner wall of the external pipe (3). A sealing assembly includes a pull rod (8), a spring (12) sleeved on the outer wall of the pull rod (8), a first sealing plug (10) and a second sealing plug (13) sleeved on the outer wall of the pull rod (8), the first sealing plug (10) being detachably installed at the end of the outer tube (3), a second sealing ring (11) being fixedly connected to the inner wall of the first sealing plug (10), the second sealing ring (11) being in sliding contact with the pull rod (8), a third sealing ring (14) being fixedly connected to the outer wall of the second sealing plug (13), the third sealing ring (14) being in sliding contact with the inner wall of the outer tube (3), a fourth sealing ring (15) being fixedly connected to the inner wall of the second sealing plug (13), the fourth sealing ring (15) being in sliding contact with the pull rod (8), and a limit ring (16) being fixedly connected to the outer wall of the pull rod (8). The filter assembly includes a filter screen (18), which is rotatably mounted on a pull rod (8). A cleaning brush (17) is fixedly connected to the outer wall of the pull rod (8). The cleaning brush (17) is in frictional contact with the filter screen (18). A fifth sealing ring (20) is fixedly connected to the outer circumference of the filter screen (18). The fifth sealing ring (20) is in sliding contact with the inner wall of the liquid phase outlet pipe (2).

2. The anti-clogging device for the drain pipe of the separator according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the first sealing plug (10), and the other end of the spring (12) is fixedly connected to the second sealing plug (13).

3. The anti-clogging device for the drain pipe of the separator according to claim 2, characterized in that: The end of the pull rod (8) passes through the first sealing plug (10) and extends to the outside of the outer tube (3), and the end of the pull rod (8) is fixedly connected to the pull ring (9).

4. The anti-clogging device for the drain pipe of the separator according to claim 3, characterized in that: The outer pipe (3) has a threaded groove (5) at its end, and a sealing pipe (7) is threaded onto the threaded groove (5).

5. The anti-clogging device for the drain pipe of the separator according to claim 4, characterized in that: The inner wall of the threaded groove (5) is fixedly installed with a first sealing ring (6), and the outer wall of the first sealing ring (6) is in contact with the sealing tube (7) by compression.

6. The anti-clogging device for the drain pipe of the separator according to claim 5, characterized in that: The filter screen (18) is fixedly connected to a connecting sleeve (19), and a fifth sealing ring (20) is also fixedly installed on the outer wall of the connecting sleeve (19).

7. The anti-clogging device for the drain pipe of the separator according to claim 6, characterized in that: It also includes a separator (1), the bottom of which is fixedly connected to the liquid phase outlet pipe (2), and a plurality of support feet (21) are fixedly installed at the bottom of the separator (1).

8. The anti-clogging device for the drain pipe of the separator according to claim 7, characterized in that: A steam outlet pipe (22) is fixedly installed on the top of the separator (1), and a steam inlet pipe (23) is fixedly installed on the outer wall of the separator (1).

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