Desulfurizing tower sampling device for thermal power plant

Abstract

The utility model discloses a desulfurizing tower sampling device for a thermal power plant, which relates to the technical field of desulfurizing tower sampling devices and comprises a cylinder body, a liquid inlet sealing unit and a rotary conveying unit, the cylinder body is provided with a liquid inlet sealing unit; the liquid inlet sealing unit comprises a liquid inlet pipe, moving rods, a sealing disc and a sealing groove, the liquid inlet pipe is fixedly connected to the inner side of the cylinder body, the sealing groove is formed in the front end of the liquid inlet pipe, and the four moving rods are evenly and slidably connected to the left end of the sealing groove; according to the desulfurizing tower sampling device for the thermal power plant, a connecting opening of the desulfurizing tower sampling device and a desulfurizing tower is reduced, so that the leakage risk is reduced, the connecting position of the desulfurizing tower and the interior of a pipeline are effectively sealed through a plurality of groups of sealing devices, and a sampling bottle is placed through a movable supporting plate; meanwhile, the sampling bottle and the sampling device are tightly connected in a threaded connection mode, and the risk of falling off during sampling detection is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization tower sampling devices, in particular to a desulfurization tower sampling device for a thermal power plant. Background Art

[0002] At present, environmental protection requirements are becoming increasingly stringent. Most thermal power plants rely on wet desulfurization systems to meet environmental pollutant emission requirements. The slurry density and pH value in the desulfurization tower are important parameters to ensure the normal operation of the desulfurization system. However, the slurry in the desulfurization tower is viscous and corrosive, which will cause blockage and corrosion to the density measurement device and pH value measurement device of the power plant;

[0003] Among them, the prior art authorization announcement number CN114964911A proposes a desulfurization tower sampling device for a thermal power plant, comprising a tower wall and a connection port fixedly connected to one side of the tower wall, the connection port is connected to a cylinder body, the cylinder body is provided with a piston, the two sides of the piston are respectively provided with a sampling chamber and a gas pressure chamber, the gas pressure chamber is connected with a boost interface and a pressure reduction interface, the bottom end of the sampling chamber is connected with a sampling interface, the piston is provided with a head facing the tower wall, and a pressure gauge is provided in the head;

[0004] In the prior art, there is a high risk of leakage between the desulfurization tower sampling device and the desulfurization tower connection port, which cannot be effectively sealed. The connection between the sampling bottle and the sampling device is relatively loose, and there is a risk of falling off during sampling and testing. For this reason, we propose a desulfurization tower sampling device for thermal power plants. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a desulfurization tower sampling device for a thermal power plant. The desulfurization tower sampling device and the desulfurization tower connection port have good sealing effect to reduce the risk of leakage. The desulfurization tower connection and the pipeline are effectively sealed through multiple sets of sealing devices, and the sampling bottle is placed on a movable support plate. At the same time, the connection between the sampling bottle and the sampling device is tight through a threaded connection, which reduces the risk of falling off during sampling and detection, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a desulfurization tower sampling device for a thermal power plant, comprising a cylinder body, a liquid inlet sealing unit and a rotating conveying unit;

[0007] Cylinder body: equipped with liquid inlet sealing unit;

[0008] Liquid inlet sealing unit: comprising a liquid inlet pipe, a moving rod, a sealing disk, and a sealing groove. The inner side of the cylinder body is fixedly connected with a liquid inlet pipe, the front end of the liquid inlet pipe is provided with a sealing groove, the left end of the sealing groove is evenly slidably connected with four moving rods, and the left ends of the four moving rods are fixedly connected with a sealing disk;

[0009] Rotating conveying unit: installed on the liquid inlet sealing unit;

[0010] The sealing disk is moved by the moving rod, and the moving rod limits the sealing disk. The left end of the liquid inlet pipe is sealed by the sealing disk, and the sealing disk and the sealing groove prevent leakage of the solution in the desulfurization tower.

[0011] Furthermore, the liquid inlet sealing unit also includes a sealing ring, a sealing plug, a sealing sleeve and a threaded ring. The right end of the sealing disk is fixedly connected to the sealing plug, the outer side of the sealing plug is fixedly connected to the sealing sleeve, the outer left end of the moving rod is slidably connected to the sealing ring, and the right end of the moving rod is fixedly connected to the threaded ring.

[0012] The moving rod is driven to move by the threaded ring, and then the inside of the pipeline liquid inlet pipe is sealed by the sealing ring, the sealing sleeve and the sealing plug, so as to prevent the solution in the tower from flowing out or leaking.

[0013] Furthermore, the rotating conveying unit includes a fixed ring, a rotating threaded barrel, an anti-slip strip and a connecting tube, the inner right end of the liquid inlet tube is fixedly connected to the connecting tube, the outer side of the connecting tube is slidably connected to the threaded ring, the middle part of the outer side of the connecting tube is fixedly connected to the fixed ring, a rotating threaded barrel is rotatably connected between the fixed ring and the liquid inlet tube, the inner side of the rotating threaded barrel is threadedly connected to the threaded ring, and the outer side of the rotating threaded barrel is fixedly connected to multiple anti-slip strips.

[0014] The solution to be sampled flows into the connecting tube through the liquid inlet tube. The moving rod rotating between the fixed ring and the liquid inlet tube drives the threaded ring to move under the action of the thread. The anti-slip strip prevents the rotating threaded tube from slipping, thereby driving the sealing parts to seal the liquid intake port.

[0015] Furthermore, the rotating conveying unit further comprises a butterfly valve and a bent pipe, the right end of the fixing ring is fixedly connected to the butterfly valve, and the right end of the butterfly valve is fixedly connected to one end of the bent pipe.

[0016] By switching the butterfly valve, the solution flows from the connecting pipe into the elbow and then flows out to achieve the purpose of liquid collection.

[0017] Furthermore, it also includes a mounting tube, an annular mounting seat and a sample liquid outlet threaded tube. The other end of the bent tube is fixedly connected to the mounting tube, the outer side of the mounting tube is fixedly connected to the annular mounting seat, and the inner side of the mounting tube is fixedly connected to the sample liquid outlet threaded tube.

[0018] The solution enters the installation tube and then flows out from the sample liquid outlet threaded tube, thereby achieving the purpose of collecting the sampling solution.

[0019] Furthermore, it also includes a sampling bottle, a movable placement plate and a sample liquid outlet threaded tube. The two ends of the annular mounting seat are movably connected to the upper end of the movable placement plate, the inner side of the upper end of the sampling bottle is threadedly connected to the sample liquid outlet threaded tube, and the sampling bottle is placed on the movable placement plate.

[0020] Through the threaded connection between the sampling bottle and the sample liquid outlet threaded tube, the solution flows into the sampling bottle from the sample liquid outlet threaded tube, and at the same time, the sampling bottle is prevented from falling off during use, so that the movable placement plate supports the sampling bottle from the bottom.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the desulfurization tower sampling device for thermal power plants has the following advantages:

[0022] 1. The desulfurization tower sampling device used in this thermal power plant has a good sealing effect on the connection port of the desulfurization tower sampling device and the desulfurization tower to reduce the risk of leakage. The desulfurization tower connection and the pipeline are effectively sealed through multiple sets of sealing devices. The sampling device can have better sealing performance through the connection port installed inside the desulfurization tower and the movable sealing plug. At the same time, the threaded action makes it difficult for the sealing plug to move during sealing.

[0023] 2. The desulfurization tower sampling device used in this thermal power plant uses a threaded connection to ensure a tight connection between the sampling bottle and the sampling device, thereby reducing the risk of falling off during sampling and testing. The sampling bottle is placed on a movable support plate to prevent the sampling bottle from falling off during the sampling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 3 It is a partial cross-sectional structural schematic diagram of the utility model;

[0027] Figure 4 For this utility model Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] In the figure: 1 cylinder body, 2 mounting pipe, 3 liquid inlet sealing unit, 31 liquid inlet pipe, 32 moving rod, 33 sealing disk, 34 sealing ring, 35 sealing plug, 36 sealing sleeve, 37 sealing groove, 38 threaded ring, 4 rotating conveying unit, 41 fixing ring, 42 rotating threaded cylinder, 43 anti-slip strip, 44 connecting pipe, 45 butterfly valve, 46 elbow, 5 sampling bottle, 6 annular mounting seat, 7 movable placement plate, 8 sample liquid outlet threaded pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-4 , This embodiment provides a technical solution for a desulfurization tower sampling device for a thermal power plant: A desulfurization tower sampling device for a thermal power plant, comprising a cylinder 1, a liquid inlet sealing unit 3 and a rotating conveying unit 4;

[0031] Cylinder body 1: equipped with a liquid inlet sealing unit 3;

[0032] Liquid inlet sealing unit 3: comprising a liquid inlet pipe 31, a moving rod 32, a sealing disk 33, and a sealing groove 37. The inner side of the cylinder body 1 is fixedly connected with the liquid inlet pipe 31, and a sealing groove 37 is provided at the front end of the liquid inlet pipe 31. The left end of the sealing groove 37 is evenly slidably connected with four moving rods 32, and the left ends of the four moving rods 32 are fixedly connected with the sealing disk 33;

[0033] The sealing disk 33 is moved by the moving rod 32 , and the moving rod 32 limits the sealing disk 33 . The sealing disk 33 seals the left end of the liquid inlet pipe 31 , and the sealing disk 33 and the sealing groove 37 prevent leakage of the solution in the desulfurization tower.

[0034] The liquid inlet sealing unit 3 also includes a sealing ring 34, a sealing plug 35, a sealing sleeve 36 and a threaded ring 38. The right end of the sealing disk 33 is fixedly connected to the sealing plug 35, the outer side of the sealing plug 35 is fixedly connected to the sealing sleeve 36, the outer left end of the moving rod 32 is slidably connected to the sealing ring 34, and the right end of the moving rod 32 is fixedly connected to the threaded ring 38.

[0035] The moving rod 32 is driven to move by the threaded ring 38, and then the interior of the pipeline liquid inlet pipe 31 is sealed by the sealing ring 34, the sealing sleeve 36 and the sealing plug 35, so as to prevent the solution in the tower from flowing out or leaking.

[0036] Rotating conveying unit 4: installed on the liquid inlet sealing unit 3; the rotating conveying unit 4 includes a fixed ring 41, a rotating threaded barrel 42, an anti-slip strip 43 and a connecting tube 44, the inner right end of the liquid inlet tube 31 is fixedly connected with the connecting tube 44, the outer side of the connecting tube 44 is slidably connected with a threaded ring 38, the middle part of the outer side of the connecting tube 44 is fixedly connected with a fixed ring 41, a rotating threaded barrel 42 is rotatably connected between the fixed ring 41 and the liquid inlet tube 31, the inner side of the rotating threaded barrel 42 is threadedly connected to the threaded ring 38, and the outer side of the rotating threaded barrel 42 is fixedly connected with multiple anti-slip strips 43.

[0037] The solution to be sampled flows into the connecting tube 44 through the liquid inlet tube 31. The moving rod 32 rotating between the fixed ring 41 and the liquid inlet tube 31 drives the threaded ring 38 to move under the action of the thread. The anti-slip strip 43 plays an anti-slip role on the rotating threaded tube 42, thereby driving the sealing parts to seal the liquid intake port.

[0038] The rotating conveying unit 4 further includes a butterfly valve 45 and a curved pipe 46 . The right end of the fixing ring 41 is fixedly connected to the butterfly valve 45 , and the right end of the butterfly valve 45 is fixedly connected to one end of the curved pipe 46 .

[0039] By switching the butterfly valve 45 , the solution flows from the connecting pipe 44 into the bent pipe 46 , and then flows out to achieve the purpose of taking liquid.

[0040] It also includes a mounting tube 2, an annular mounting seat 6 and a sample liquid outlet threaded tube 8. The other end of the curved tube 46 is fixedly connected to the mounting tube 2, the outer side of the mounting tube 2 is fixedly connected to the annular mounting seat 6, and the inner side of the mounting tube 2 is fixedly connected to the sample liquid outlet threaded tube 8.

[0041] The solution enters the installation tube 2 and then flows out from the sample liquid outlet threaded tube 8, thereby achieving the purpose of collecting the sampling solution.

[0042] It also includes a sampling bottle 5, a movable placement plate 7 and a sample liquid outlet threaded tube 8. The two ends of the annular mounting seat 6 are movably connected to the upper end of the movable placement plate 7. The inner side of the upper end of the sampling bottle 5 is threadedly connected to the sample liquid outlet threaded tube 8. The sampling bottle 5 is placed on the movable placement plate 7.

[0043] Through the threaded connection between the sampling bottle 5 and the sample liquid outlet threaded tube 8, the solution flows into the sampling bottle 5 from the sample liquid outlet threaded tube 8, while preventing the sampling bottle 5 from falling off during use, so that the movable placement plate 7 supports the sampling bottle 5 from the bottom.

[0044] The working principle of a desulfurization tower sampling device for a thermal power plant provided by the utility model is as follows: the sealing disk 33 is driven to move by the moving rod 32, and the moving rod 32 limits the sealing disk 33, and the left end of the liquid inlet pipe 31 is sealed by the sealing disk 33, and the solution in the desulfurization tower is prevented from leaking by the sealing disk 33 and the sealing groove 37. The moving rod 32 is driven to move by the threaded ring 38, and then the inside of the pipeline liquid inlet pipe 31 is sealed by the sealing ring 34, the sealing sleeve 36 and the sealing plug 35, so as to prevent the solution in the tower from flowing out or leaking. The solution to be sampled flows into the connecting pipe 44 through the inside of the liquid inlet pipe 31, and the moving rod 32 rotating between the fixed ring 41 and the liquid inlet pipe 31 drives the threaded ring 38 to move under the action of the thread, and the anti-slip strip 43 plays an anti-slip role on the rotating threaded cylinder 42, so as to drive the sealing parts to seal the liquid taking port. The solution flows from the connecting pipe 44 into the curved pipe 46 by the switch of the butterfly valve 45, and then flows out to achieve the purpose of collecting the solution. The solution enters the installation pipe 2, and then flows out from the sample liquid outlet threaded pipe 8, so as to achieve the purpose of collecting the sample solution. Through the threaded connection between the sampling bottle 5 and the sample liquid outlet threaded pipe 8, the solution flows from the sample liquid outlet threaded pipe 8 into the sampling bottle 5, and at the same time, the sampling bottle 5 is prevented from falling off during use, so that the movable placement plate 7 supports the sampling bottle 5 from the bottom.

[0045] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A desulfurization tower sampling device for a thermal power plant, characterized in that: It comprises a cylinder body (1), a liquid inlet sealing unit (3) and a rotating conveying unit (4); Cylinder body (1): equipped with a liquid inlet sealing unit (3); The liquid inlet sealing unit (3) comprises a liquid inlet pipe (31), a moving rod (32), a sealing disk (33), and a sealing groove (37); the inner side of the cylinder body (1) is fixedly connected with the liquid inlet pipe (31); the front end of the liquid inlet pipe (31) is provided with a sealing groove (37); the left end of the sealing groove (37) is evenly slidably connected with four moving rods (32); the left ends of the four moving rods (32) are fixedly connected with the sealing disk (33); Rotating conveying unit (4): installed on the liquid inlet sealing unit (3).

2. A desulfurization tower sampling device for a thermal power plant according to claim 1, characterized in that: The liquid inlet sealing unit (3) further comprises a sealing ring (34), a sealing plug (35), a sealing sleeve (36) and a threaded ring (38); the right end of the sealing disk (33) is fixedly connected to the sealing plug (35); the outer side of the sealing plug (35) is fixedly connected to the sealing sleeve (36); the outer left end of the movable rod (32) is slidably connected to the sealing ring (34); and the right end of the movable rod (32) is fixedly connected to the threaded ring (38).

3. A desulfurization tower sampling device for a thermal power plant according to claim 2, characterized in that: The rotating conveying unit (4) comprises a fixing ring (41), a rotating threaded barrel (42), an anti-slip strip (43) and a connecting pipe (44); the inner right end of the liquid inlet pipe (31) is fixedly connected to the connecting pipe (44); the outer side of the connecting pipe (44) is slidably connected to a threaded ring (38); the middle part of the outer side of the connecting pipe (44) is fixedly connected to the fixing ring (41); a rotating threaded barrel (42) is rotatably connected between the fixing ring (41) and the liquid inlet pipe (31); the inner side of the rotating threaded barrel (42) is threadedly connected to the threaded ring (38); and the outer side of the rotating threaded barrel (42) is fixedly connected to a plurality of anti-slip strips (43).

4. A desulfurization tower sampling device for a thermal power plant according to claim 3, characterized in that: The rotating conveying unit (4) further comprises a butterfly valve (45) and a curved pipe (46); the right end of the fixing ring (41) is fixedly connected to the butterfly valve (45); and the right end of the butterfly valve (45) is fixedly connected to one end of the curved pipe (46).

5. A desulfurization tower sampling device for a thermal power plant according to claim 4, characterized in that: It also comprises a mounting tube (2), an annular mounting seat (6) and a sample liquid outlet threaded tube (8); the other end of the bent tube (46) is fixedly connected to the mounting tube (2); the outer side of the mounting tube (2) is fixedly connected to the annular mounting seat (6); and the inner side of the mounting tube (2) is fixedly connected to the sample liquid outlet threaded tube (8).

6. A desulfurization tower sampling device for a thermal power plant according to claim 5, characterized in that: It also includes a sampling bottle (5), a movable placement plate (7) and a sample liquid outlet threaded tube (8), the two ends of the annular mounting seat (6) are movably connected to the upper end of the movable placement plate (7), the inner side of the upper end of the sampling bottle (5) is threadedly connected to the sample liquid outlet threaded tube (8), and the sampling bottle (5) is placed on the movable placement plate (7).

Images