Water leakage prevention device for starting of exhaust pipeline of desulfurized water ring vacuum pump

Abstract

The utility model discloses a kind of desulfurization water ring vacuum pump exhaust pipeline starting anti-leakage device, including outer shell, the through-hole plate is installed in the two sides of adjusting cavity inner wall, and through-hole plate inner wall is equipped with installation slot, adjusting plug-in board is inserted and installed in the inner wall of installation slot, and the upper end of adjusting plug-in board is fixedly connected with fixed plate, the flange plate is fixedly connected in the communicating interface, exhaust pipe end face. Water can be quickly guided by the buffer block in this kind of desulfurization water ring vacuum pump exhaust pipeline starting anti-leakage device, form water in preliminary separation water vapor mixture, and discharge and recycle, and adjusting plug-in board can be driven to lift adjustment by threaded rod and threaded groove, so as to adjust water vapor mixture flow area according to starting operating condition, and high-efficiency water vapor separation can be carried out by separation membrane, and water is guided back, and separation membrane can be quickly inserted and disassembled by splicing slot, convenient and quick replacement, use effect is better.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, specifically to a desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device. Background Technology

[0002] The vacuum belt dewatering negative pressure system in the limestone wet flue gas desulfurization unit of a thermal power plant uses a water ring vacuum pump. The working environment at the inlet of the water ring vacuum pump is water (slurry with low solid content) filtered through filter cloth. Many factors affect the working environment at the inlet of the water ring vacuum pump, such as changes in slurry density, filter cloth permeability (mesh count), hydrocyclone conditions, dewatering machine sealing belt gap, and sealing water volume. Furthermore, changes in the dewatering machine's operating status and the method of rinsing the filter cloth during shutdown can all cause fluctuations in the inlet negative pressure of the water ring vacuum pump, resulting in changes in the inlet and outlet fluid velocities.

[0003] The existing flue gas desulfurization water ring vacuum pump outlet gas-liquid separation device (CN201310005353.6) has high gas-liquid separation performance, effectively separating and collecting fine droplets in the two-phase fluid at the vacuum pump outlet (effectively separating fine droplets with a diameter ≥30μm in the two-phase fluid), and preventing the collected droplets from being re-entrained by the gas, effectively controlling environmental pollution. However, it has shortcomings: the existing equipment has poor leak prevention effect, cannot be adapted and adjusted, and the replacement of parts is inconvenient, resulting in poor performance. Therefore, a desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device is needed to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump, so as to solve the problems mentioned in the background art, such as poor leakage prevention effect of the gas-liquid separation device at the outlet of the flue gas desulfurization water ring vacuum pump, inability to be adapted and adjusted, inconvenient replacement of parts, and poor performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a water-leakage prevention device for the exhaust pipe of a desulfurization water ring vacuum pump, comprising an outer shell, connecting interfaces installed on both sides of the outer shell, and an exhaust pipe connected to the other end of the connecting interfaces; a pre-buffering chamber is formed on one side of the inner wall of the outer shell, and an adjusting chamber is formed in the middle of the inner wall of the outer shell; an exhaust chamber is formed on the other side of the inner wall of the outer shell, and a guide plate is fixedly connected to the outer side of the inner wall of the exhaust chamber; splicing slots are formed at the upper and lower ends of the inner wall of the exhaust chamber, and a separation membrane is inserted into the inner wall of the splicing slots; a buffer block is fixedly connected to the upper end of the inner wall of the pre-buffering chamber, and a water guide groove is installed connecting the lower ends of the pre-buffering chamber and the adjusting chamber. The lower edge of the water guide channel is provided with a sealing groove, and a sealing ring is inserted into the inner wall of the sealing groove. The lower end of the sealing ring is fixedly connected to a drain pipe, and a threaded sleeve is fitted onto the upper end of the outer wall of the drain pipe. The threaded sleeve is screwed into the lower end of the water guide channel. Through-hole plates are installed on both sides of the inner wall of the adjustment cavity, and an installation slot is provided on the inner wall of the through-hole plate. An adjustment plate is inserted into the inner wall of the installation slot, and a fixing plate is fixedly connected to the upper end of the adjustment plate. A threaded groove is provided in the middle of the fixing plate, and a threaded rod is inserted into the inner wall of the threaded groove. The lower end of the threaded rod is rotatably installed at the middle position of the upper end of the outer shell. Flanges are fixedly connected to the end face of the connecting interface and the exhaust pipe.

[0006] Preferably, the outer casing is connected to the exhaust pipe via a flange, and the buffer block has three sets of inclined structures.

[0007] Preferably, the drain pipe is connected to the water guide groove by a threaded sleeve, and the drain pipe is installed in a sealed manner with the water guide groove by a sealing groove and a sealing ring, wherein the water guide groove has a funnel structure.

[0008] Preferably, the guide plate has a frustum-shaped groove structure, and one end of the guide plate is connected to the through-hole plate. The separation membrane is made of waterproof and breathable membrane material, and the separation membrane is installed by splicing and interlocking with the exhaust chamber through a splicing slot in a sealed manner.

[0009] Preferably, the through-hole plate has a matrix through-hole structure, and the through-hole plate is symmetrically distributed in two sets on the inner wall of the adjustment cavity.

[0010] Preferably, the adjusting plate is connected to the mounting slot in a rotating and lifting motion via a threaded rod within a threaded groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the desulfurization water ring vacuum pump exhaust pipe start-up leak-proof device can quickly guide water through the buffer block, forming a preliminary separation of water in the water vapor mixture, and then discharge and recover it. Moreover, the flow area of ​​the water vapor mixture can be adjusted according to the start-up conditions by driving the adjusting plate to rise and fall through the threaded rod and threaded groove. Furthermore, efficient water vapor separation can be achieved through the separation membrane, and the water can be guided back. In addition, the separation membrane can be quickly installed and disassembled through the splicing slot, which is convenient for quick replacement and has a better performance. Attached Figure Description

[0012] Figure 1 This is a front view of a desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of a desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to the present invention;

[0014] Figure 3 This utility model relates to a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump. Figure 2 Enlarged view of point A in the middle;

[0015] Figure 4 This utility model relates to a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump. Figure 2 Enlarged view at point B in the middle;

[0016] Figure 5 This utility model relates to a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump. Figure 2 Enlarged view at point C;

[0017] Figure 6 This utility model relates to a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump. Figure 2 Enlarged view of point D in the middle.

[0018] In the diagram: 1. Outer shell, 2. Connecting interface, 3. Exhaust pipe, 4. Flange, 5. Drain pipe, 6. Pre-buffered cavity, 7. Buffer block, 8. Threaded rod, 9. Fixing plate, 10. Exhaust cavity, 11. Guide plate, 12. Adjustment cavity, 13. Water guide groove, 14. Through hole plate, 15. Mounting slot, 16. Adjustment insert plate, 17. Threaded groove, 18. Separation membrane, 19. Splicing slot, 20. Sealing groove, 21. Sealing ring, 22. Threaded sleeve. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-6This utility model provides a technical solution: a water-leakage prevention device for the exhaust pipe of a desulfurization water ring vacuum pump, comprising an outer shell 1, a connecting interface 2, an exhaust pipe 3, a flange 4, a drain pipe 5, a pre-buffer chamber 6, a buffer block 7, a threaded rod 8, a fixing plate 9, an exhaust chamber 10, a guide plate 11, an adjusting chamber 12, a water guide groove 13, a through-hole plate 14, an installation slot 15, an adjusting insert plate 16, a threaded groove 17, a separation membrane 18, a splicing slot 19, a sealing groove 20, a sealing ring 21, and a threaded sleeve 22. The connecting interfaces 2 are installed on both sides of the outer shell 1, and the exhaust pipe 3 is installed at the other end of the connecting interfaces 2. The outer shell 1 is spliced ​​and connected to the exhaust pipe 3 via the flange 4. The buffer block 7 has three sets of inclined structures, which allows the outer shell 1 to... The system allows for quick assembly and disassembly, and the water in the air-water mixture can be initially separated and discharged for recycling via the buffer block 7. A pre-buffering chamber 6 is provided on one side of the inner wall of the outer casing 1, and an adjustment chamber 12 is provided in the middle of the inner wall of the outer casing 1. An exhaust chamber 10 is provided on the other side of the inner wall of the outer casing 1, and a guide plate 11 is fixedly connected to the outer side of the inner wall of the exhaust chamber 10. The guide plate 11 has a frustum-shaped groove structure, and one end of the guide plate 11 is connected to the through-hole plate 14. The separation membrane 18 is made of waterproof and breathable membrane material, and the separation membrane 18 is installed in a sealed insertion with the exhaust chamber 10 via a splicing slot 19. This allows the guide plate 11 to quickly guide the water back, and the separation membrane 18 can perform efficient water-vapor separation, while also facilitating quick assembly, disassembly, and replacement. The upper and lower ends of the inner wall of the exhaust chamber 10 are provided with... A splicing slot 19 is provided, and a separation membrane 18 is installed on the inner wall of the splicing slot 19. A buffer block 7 is fixedly connected to the upper end of the inner wall of the pre-buffering chamber 6, and a water guide trough 13 is installed at the lower end of the pre-buffering chamber 6 and the adjusting chamber 12. A sealing groove 20 is provided at the lower edge of the water guide trough 13, and a sealing ring 21 is installed on the inner wall of the sealing groove 20. A drain pipe 5 is fixedly connected to the lower end of the sealing ring 21, and a threaded sleeve 22 is fitted on the upper end of the outer wall of the drain pipe 5. The drain pipe 5 is spliced ​​and connected to the water guide trough 13 through the threaded sleeve 22, and the drain pipe 5 is sealed and installed by inserting the sealing groove 20 and the sealing ring 21 into the water guide trough 13. The water guide trough 13 has a funnel structure, which makes it easy and quick to disassemble and install the drain pipe 5, and easy to replace it. Moreover, the drain pipe 5 can be easily disassembled and replaced through the water guide trough. 13. A stable water guide is provided. The threaded sleeve 22 is screwed into the lower end of the water guide channel 13. Through-hole plates 14 are installed on both sides of the inner wall of the regulating cavity 12, and the inner wall of the through-hole plates 14 has an installation slot 15. The through-hole plates 14 have a matrix through-hole structure, and the through-hole plates 14 are symmetrically distributed in two sets on the inner wall of the regulating cavity 12. This allows the through-hole plates 14 to be adjusted in two sets, avoiding the inability to use them if one set is damaged. An adjusting plate 16 is inserted into the inner wall of the installation slot 15, and a fixing plate 9 is fixedly connected to the upper end of the adjusting plate 16. The adjusting plate 16 is connected to the installation slot 15 in a screw-on and lifting motion through a threaded rod 8 in a threaded groove 17. This makes it easy to adjust the adjusting plate 16 by screwing it in and lifting, and it is easy to use. The fixing plate 9 has a threaded groove 17 in the middle position.Furthermore, a threaded rod 8 is inserted and installed on the inner wall of the threaded groove 17. The lower end of the threaded rod 8 is rotatably installed at the middle position of the upper end of the outer casing 1. Flanges 4 are fixedly connected to the end faces of the connecting interface 2 and the exhaust pipe 3.

[0021] Working principle: When using this desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device, first install the device by connecting it to the exhaust pipe 3 flange via flange 4. Then it can be used. The gas-water mixture enters the pre-buffer chamber 6, and is then buffered and guided by the buffer block 7. Most of the water flows to the bottom of the pre-buffer chamber 6 under gravity and is discharged through the water guide groove 13 and drain pipe 5. According to the actual working conditions, the operator rotates the threaded rod 8 to adjust the adjustment plate 16 in the through hole plate 14, adjusts the flow area of ​​the through hole, and controls the flow rate and flow of the gas-water mixture into the regulating chamber. Then, the water vapor is efficiently separated by the separation membrane 18, and the water is guided back to the regulating chamber 12 by the guide plate 11 for quick discharge. When the drain pipe 5 needs to be replaced, it can be disassembled by screwing on the threaded sleeve 22. When the separation membrane 18 is damaged, it can be quickly pulled out and replaced by the splicing slot 19. This is the usage process of this desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device.

[0022] It should be noted that this utility model is a water leakage prevention device for the start-up of the exhaust pipe of a desulfurization water ring vacuum pump. All components are standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle described above, and the electrical connection between each electrical component should be completed in the order of operation. The detailed connection method is a well-known technology in this field.

[0023] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A water-leakage prevention device for the exhaust pipe of a desulfurization water ring vacuum pump, comprising an outer shell (1), wherein connecting interfaces (2) are installed on both sides of the outer shell (1), and an exhaust pipe (3) is installed at the other end of the connecting interfaces (2), characterized in that: A pre-buffered cavity (6) is provided on one side of the inner wall of the outer shell (1), and an adjustment cavity (12) is provided in the middle of the inner wall of the outer shell (1). An exhaust cavity (10) is provided on the other side of the inner wall of the outer shell (1), and a guide plate (11) is fixedly connected to the outer side of the inner wall of the exhaust cavity (10). A splicing slot (19) is provided at the upper and lower ends of the inner wall of the exhaust cavity (10), and a separation membrane (18) is inserted into the inner wall of the splicing slot (19). A buffer block (7) is fixedly connected to the upper end of the inner wall of the pre-buffered cavity (6), and a water guide groove (13) is installed in the lower end of the pre-buffered cavity (6) and the adjustment cavity (12). A sealing groove (20) is provided at the lower edge of the water guide groove (13), and a sealing ring (21) is inserted into the inner wall of the sealing groove (20). The lower end of the sealing ring (21) is fixed. A drain pipe (5) is fixedly connected, and a threaded sleeve (22) is fitted on the upper end of the outer wall of the drain pipe (5). The threaded sleeve (22) is screwed and fitted on the lower end of the water guide groove (13). A through hole plate (14) is installed on both sides of the inner wall of the regulating cavity (12), and an installation slot (15) is opened on the inner wall of the through hole plate (14). An adjusting plate (16) is inserted and installed on the inner wall of the installation slot (15), and a fixing plate (9) is fixedly connected to the upper end of the adjusting plate (16). A threaded groove (17) is opened in the middle position of the fixing plate (9), and a threaded rod (8) is inserted and installed on the inner wall of the threaded groove (17). The lower end of the threaded rod (8) is rotated and installed at the middle position of the upper end of the outer shell (1). A flange (4) is fixedly connected to the end face of the connecting interface (2) and the exhaust pipe (3).

2. The desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to claim 1, characterized in that: The outer shell (1) is connected to the exhaust pipe (3) by a flange (4) and the buffer block (7) is a three-group inclined structure.

3. The desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to claim 2, characterized in that: The drain pipe (5) is connected to the water guide groove (13) by a threaded sleeve (22) and is installed in a screw-on manner. The drain pipe (5) is also connected to the water guide groove (13) by a sealing groove (20) and a sealing ring (21) in a plug-in sealing manner. The water guide groove (13) has a funnel structure.

4. The desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to claim 3, characterized in that: The guide plate (11) has a frustum groove structure, and one end of the guide plate (11) is connected to the through hole plate (14). The separation membrane (18) is made of waterproof and breathable membrane material, and the separation membrane (18) is installed in a sealed and interlocked manner with the exhaust chamber (10) through the splicing slot (19).

5. The anti-leakage device for the exhaust pipe of a desulfurization water ring vacuum pump according to claim 4, characterized in that: The through-hole plate (14) has a matrix through-hole structure, and the through-hole plate (14) is symmetrically distributed in two groups on the inner wall of the adjustment cavity (12).

6. The desulfurization water ring vacuum pump exhaust pipe start-up leak prevention device according to claim 5, characterized in that: The adjusting plate (16) is connected to the mounting slot (15) in a rotating and lifting motion via a threaded rod (8) in a threaded groove (17).

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