Desulfurizing tower sampling device

Abstract

The invention relates to the technical field of flue gas desulfurization systems, in particular to a desulfurization tower sampling device, which comprises an outer cylinder component, an inner cylinder component, an inner cylinder component, a sampling device and a sampling device, and is characterized in that the outer cylinder component comprises a bearing part and a connecting cover arranged at the top of the bearing part; the opening and closing component comprises a partition mechanism, a control mechanism arranged on the side face of the partition mechanism and a protective layer arranged at the bottom of the partition mechanism; the ash taking component comprises a bearing disc and a supporting ring arranged at the bottom of the bearing disc, and fly ash carried in the smoke is filtered out through the ash taking component, so that component analysis is facilitated; the smoke taking component comprises a smoke bag and a connecting cylinder arranged on the side face of the smoke bag, smoke can be conveniently sampled through the operating rod, fly ash in the smoke can be separated out, dust sampling and smoke sampling can be conducted at the same time, the sampling process is simplified, and when the sampling device does not work, the smoke can be conveniently taken out; and the opening and closing component isolates the sampling component at the lower part of the bearing part and protects the sampling component.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas desulfurization systems, and particularly to a sampling device for a desulfurization tower. Background Art

[0002] A desulfurization tower is a device used to remove sulfur dioxide from combustion exhaust gas, and its working principle mainly includes two processes: absorption and reaction. During the absorption process, the combustion exhaust gas contacts a desulfurizing agent (usually an alkaline solution such as sodium hydroxide or lime slurry) through a sprayer or atomizer, and sulfur dioxide reacts chemically with the desulfurizing agent to form sulfate, which is thus absorbed. During the operation of the desulfurization tower, we need to monitor various parameters to ensure its stable operation, such as desulfurization efficiency, absorbent utilization efficiency and calcium-sulfur ratio, flue gas emission temperature and system pressure, water consumption and liquid-gas ratio, etc. Therefore, it is necessary to frequently sample and analyze the products in the desulfurization tower.

[0003] Among them, when sampling on its outlet flue, if it is for analyzing gaseous pollutants in the flue gas, it is usually necessary to filter to remove particulate matter in the flue gas. However, at the same time, we also need to analyze the components of by-products from the fly ash carried in the flue gas to determine the operating conditions, and the flue gas in the flue changes rapidly, so the sampling process is rather complicated. Therefore, we need a device that is convenient for sampling and can separate fly ash and flue gas in the flue. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above technical problems, the present invention provides the following technical solution: A sampling device for a desulfurization tower, characterized in that it includes an outer cylinder member, which includes a bearing part and a connection cover provided at the top of the bearing part; and an opening and closing member, which includes a partition mechanism, a control mechanism provided on the side of the partition mechanism, and a protective layer provided at the bottom of the partition mechanism; and an ash sampling member, which includes a bearing disc and a support ring provided at the bottom of the bearing disc; and a flue gas sampling member, which includes a smoke bag and a connection cylinder provided on the side of the smoke bag.

[0006] As a preferred scheme of the sampling device for a desulfurization tower of the present invention, wherein: a connection hole is provided on the outer wall of the connection cover, a piston plate is provided inside the bearing part, and an operating rod is provided at the bottom of the piston plate.

[0007] As a preferred scheme of the sampling device for a desulfurization tower of the present invention, wherein: the bearing part includes a bearing cylinder, a straight groove is provided on the inner wall of the bearing cylinder, and an inclined groove is provided at the bottom of the straight groove.

[0008] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: the partition mechanism includes a rotating ring disposed inside the bearing cylinder, the cross-section of the rotating ring is C-shaped, an isolation frame is provided on the inner wall of the rotating ring, a rotating plate is provided inside the isolation frame, a gear is provided on the side surface of the rotating plate, a tooth groove is formed inside the rotating ring, and the tooth groove is engaged with the gear.

[0009] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: the control mechanism includes a sliding plate disposed inside the bearing cylinder, and an arc-shaped groove is formed on the outer wall of the sliding plate.

[0010] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: a sliding rod is provided on the side surface of the rotating ring, and the outer wall of the sliding rod is in contact with the arc-shaped groove.

[0011] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: a pressing plate is provided on the side surface of the sliding plate, a connecting arc plate is provided on the side of the pressing plate close to the sliding plate, and the connecting arc plate is made of an elastic material.

[0012] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: an annular clamping column is provided at the bottom of the connecting arc plate, a sliding groove is formed inside the annular clamping column, a positioning block is provided inside the annular clamping column, the top of the positioning block is connected to the sliding plate, a first elastic member is provided at the bottom of the positioning block, and the bottom of the first elastic member is connected to the inside of the annular clamping column.

[0013] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: through holes are formed on the outer wall of the bearing disc, and a pressing ring is provided inside the bearing disc.

[0014] As a preferred embodiment of the desulfurization tower sampling device of the present invention, wherein: the connecting cylinder is in contact with the bearing cylinder, a sliding cover is provided on the side surface of the connecting cylinder, a supporting plate is provided at the bottom of the sliding cover, a sliding groove is formed at the bottom of the supporting plate, a second elastic member is provided inside the sliding groove, and the second elastic member is connected to the supporting plate.

[0015] Advantages of the present invention: The device can conveniently sample the flue gas through the operating rod, separate the fly ash in the flue gas, and simultaneously perform dust sampling and flue gas sampling, simplifying the sampling process. When the sampling device is not working, the opening and closing member will isolate the sampling component at the lower part of the bearing part to protect it. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0017] Figure 1 It is a schematic diagram of the overall structure in the present invention.

[0018] Figure 2 It is a schematic diagram of the structure of the outer cylinder member in the present invention.

[0019] Figure 3 It is a schematic diagram of the structure of the partition mechanism in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the cigarette-taking member in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the control mechanism in the present invention. Detailed Embodiments

[0022] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings in the specification.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0024] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selectively exclusive embodiment from other embodiments.

[0025] Embodiment 1, refer to Figures 1 to 2, which is the first embodiment of the present invention. This embodiment provides a desulfurization tower sampling device, which includes an outer cylinder member 100, which includes a bearing part 101 and a connection cover 102 arranged on the top of the bearing part 101. The bearing part 101 bears the accessories required by the device, and the connection cover 102 connects the bearing part 101 with the flue gas passage of the desulfurization tower; and, an opening and closing member 200, which includes a partition mechanism 201, a control mechanism 202 arranged on the side of the partition mechanism 201, and a protective layer 203 arranged on the bottom of the partition mechanism 201. The partition mechanism 201 can close or open the connection between the subsequent sampling structure and the flue gas passage, cut off the connection when not working, protect the components in the device, and extend the service life; and, an ash taking member 300, which includes a bearing tray 301 and a support ring 302 arranged on the bottom of the bearing tray 301. The ash taking member 300 filters out the fly ash entrained in the flue gas to facilitate component analysis; and, a flue gas taking member 400, which includes a flue gas bag 401 and a connection cylinder 402 arranged on the side of the flue gas bag 401. The flue gas taking member 400 takes out the flue gas for preservation for subsequent detection.

[0026] Specifically, the sampling device connects the bearing part 101 with the flue gas passage of the desulfurization tower through the connection cover 102. When not working, the opening and closing member 200 cuts off the connection between the device and the flue gas passage to protect the components in the device. When working, the opening and closing member 200 opens, so that the flue gas in the flue gas passage can enter the subsequent structure of the bearing part 101. The ash taking member 300 filters out the fly ash entrained in the flue gas to facilitate component analysis, and the flue gas taking member 400 takes out the flue gas for preservation for subsequent detection.

[0027] Embodiment 2, referring to Figures 1 to 5 , which is the second embodiment of the present invention. Different from the previous embodiment, a connection hole 103 is opened on the outer wall of the connection cover 102. Through the connection hole 103, the outer cylinder member 100 is connected to the flue gas passage with a connecting piece such as a bolt. A piston plate 104 is arranged inside the bearing part 101. An operating rod 105 is arranged at the bottom of the piston plate 104. The bottom end of the operating rod 105 extends outside the bearing part 101. The operating rod 105 can drive the piston plate 104 to slide inside the bearing part 101. The bearing part 101 includes a bearing cylinder 101a, and a straight groove 101b is opened on the inner wall of the bearing cylinder 101a. An inclined groove 101c is opened at the bottom of the straight groove 101b.

[0028] Further, the partition mechanism 201 includes a rotating ring 201a disposed inside the bearing cylinder 101a. The rotating ring 201a is rotatably connected to the bearing cylinder 101a and can rotate on the inner wall of the bearing cylinder 101a. The cross-section of the rotating ring 201a is C-shaped. An isolation frame 201b is provided on the inner wall of the rotating ring 201a. A rotating plate 201c is provided inside the isolation frame 201b. The number of rotating plates 201c is multiple, and they are circumferentially arrayed on the isolation frame 201b around the axis of the bearing cylinder 101a. At the same time, the rotating plate 201c can rotate on the isolation frame 201b. A gear 201d is provided on the side of the rotating plate 201c. A tooth groove 201e is formed inside the rotating ring 201a, and the tooth groove 201e meshes with the gear 201d. When the rotating ring 201a rotates, it will drive the gear 201d to rotate, so as to drive the rotating plate 201c to rotate. When the rotating plate 201c coincides with the isolation frame 201b, it will close the isolation frame 201b and cut off the communication between the upper part and the lower part of the bearing cylinder 101a to protect the sampling fittings in the lower part.

[0029] Further, the control mechanism 202 includes a sliding plate 202a disposed inside the bearing cylinder 101a. The sliding plate 202a is slidably connected to the inner wall of the bearing cylinder 101a and can slide on the inner wall of the bearing cylinder 101a. An arc-shaped groove 202b is formed on the outer wall of the sliding plate 202a. A sliding rod 201f is provided on the side of the rotating ring 201a, and the outer wall of the sliding rod 201f is in contact with the arc-shaped groove 202b. When the sliding plate 202a slides up and down, it will drive the sliding rod 201f to rotate through the arc-shaped groove 202b, so as to drive the rotating ring 201a to rotate, and thus manipulate the rotating plate 201c to control the opening and closing of the partition mechanism 201.

[0030] Further, a resisting plate 202c is provided on the side of the sliding plate 202a. A connecting arc plate 202d is provided on the side of the resisting plate 202c close to the sliding plate 202a. The connecting arc plate 202d is made of an elastic material. An annular clamping column 202e is provided at the bottom of the connecting arc plate 202d. A chute 406 is formed inside the annular clamping column 202e. A positioning block 202f is provided inside the annular clamping column 202e. The top of the positioning block 202f is connected to the sliding plate 202a. Preferably, the positioning block 202f is obliquely arranged at the bottom of the sliding plate 202a and is parallel to the inclined groove 101c. Since the contour of the chute 406 of the annular clamping column 202e coincides with the contour of the positioning block 202f, the annular clamping column 202e can slide along the oblique direction of the positioning block 202f. When the sliding plate 202a slides to drive the annular clamping column 202e to reach the opening of the inclined groove 101c, the annular clamping column 202e can slide into the inclined groove 101c. A first elastic member 202g is provided at the bottom of the positioning block 202f, and the bottom of the first elastic member 202g is connected to the inside of the annular clamping column 202e. The first elastic member 202g is in a compressed state. Through holes 303 are formed on the outer wall of the bearing plate 301, and a pressing ring 304 is provided inside the bearing plate 301.

[0031] Specifically, since the supporting tube 101a of the outer tube component 100 is always connected and communicated with the flue gas duct through the connecting cover 102, the sampling component at the bottom of the supporting tube 101a needs to be isolated from the flue gas duct when no sampling is performed, so as to protect the mechanism therein and prevent it from being corroded by the flue gas. At this time, the top of the piston plate 104 abuts against the protective layer 203, and an opening is provided on the surface of the protective layer 203. At this time, the rotating plate 201c overlaps with the isolation frame 201b, which will close the isolation frame 201b, cut off the connection between the upper and lower parts of the supporting tube 101a, and protect the sampling accessories in the lower part.

[0032] When sampling is required, the operating rod 105 can be pulled downward to drive the piston plate 104 to slide down, extracting the air at the bottom of the carrier tube 101a, forming a negative pressure in the carrier tube 101a, and the smoke will enter the carrier tube 101a from the smoke channel. At this time, the bottom of the piston plate 104 will apply a thrust to the annular clamping column 202e, driving the annular clamping column 202e and the slide plate 202a to slide down together, so that the slide plate 202a drives the rotating ring 201a to rotate through the arc groove 202b, thereby driving the gear 201d to rotate, and driving the rotating plate 201c to rotate, so that the rotating plate 201c and the isolation are no longer overlapped. When the slide plate 202a slides down with the annular clamping column 202e to the inclined groove 10 1c port, the first elastic member 202g will push the annular clamping column 202e into the inclined groove 101c port. At this time, the movement routes of the annular clamping column 202e and the piston plate 104 are staggered, and the annular clamping column 202e is stuck in the inclined groove 101c, so that the slide plate 202a and the rotating plate 201c cannot move, and the rotating plate 201c maintains the angle formed with the isolation frame 201b, and the smoke can pass through the isolation frame 201b to the sampling component at the bottom of the supporting tube 101a for sampling. Filter paper is placed in the supporting plate 301, and the filter paper is pressed in the supporting plate 301 by the pressing ring 304. When the smoke passes through the supporting plate 301, the dust in the smoke will be trapped on the filter paper, and the dust on the filter paper will be analyzed later.

[0033] When sampling is completed, push the operating rod 105 upwards, and when the top of the piston plate 104 is released from the abutment plate 202c, the abutment plate 202c pulls the annular clamping column 202e out of the inclined groove 101c through the connecting arc plate 202d. At this time, the upward sliding of the piston plate 104 will drive the slide plate 202a to move upward together, and the arc groove 202b on the slide plate 202a will drive the rotating plate 201c to rotate and overlap with the isolation frame 201b, isolating the upper part of the supporting tube 101a from the lower part, and the smoke no longer reaches the sampling component, thereby protecting the components therein.

[0034] Example 3, reference Figures 1 to 5, which is the third embodiment of the present invention. Different from the previous embodiment, the connecting cylinder 402 is in contact with the bearing cylinder 101a, and the connecting cylinder 402 is snap-connected to the bearing cylinder 101a, so that the tobacco pouch 401 can be connected to the outer wall of the bearing cylinder 101a and the tobacco pouch 401 is communicated with the bearing cylinder 101a. A sliding cover 403 is arranged on the side of the connecting cylinder 402, a supporting plate 404 is arranged at the bottom of the sliding cover 403, a sliding groove 406 is opened at the bottom of the supporting plate 404, and the sliding groove 406 is opened on the inner wall of the bearing cylinder 101a. The supporting plate 404 can slide up and down on the inner wall of the bearing cylinder 101a together with the sliding cover 403. A second elastic member 405 is arranged inside the sliding groove 406, the second elastic member 405 is in a compressed state, and the second elastic member 405 is connected to the supporting plate 404.

[0035] Specifically, during sampling, when the operating rod 105 is pulled downward and the opening and closing member 200 is opened, the piston plate 104 continues to slide downward, and the bottom of the piston plate 104 will contact the supporting plate 404. The piston plate 104 drives the supporting plate 404 to slide downward and drives the sliding cover 403 to slide downward. At this time, the tobacco pouch 401 is communicated with the bearing cylinder 101a, and the flue gas filtered by the filter paper can enter the tobacco pouch 401 to collect the flue gas for subsequent analysis. When the sampling is completed and the piston plate 104 slides upward and disengages from the supporting plate 404, the second elastic member 405 will push the sliding cover 403 and the supporting plate 404 upward together, and the sliding cover 403 will cover the connecting cylinder 402 of the tobacco pouch 401 again, and the tobacco pouch 401 is closed.

[0036] Importantly, it should be noted that the structures and arrangements of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the sizes, scales, structures, shapes and proportions of various components, and parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function in this disclosure, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the invention or those features that are not relevant to the implementation of the invention).

[0038] It should be understood that, in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, fabrication, and production.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A desulfurization tower sampling device, characterized in that: Comprising, An outer cylinder member (100), which includes a bearing part (101) and a connection cover (102) arranged on the top of the bearing part (101); and, An opening and closing member (200), which includes a partition mechanism (201), a control mechanism (202) arranged on the side of the partition mechanism (201), and a protective layer (203) arranged on the bottom of the partition mechanism (201); and, An ash taking member (300), which includes a bearing disc (301) and a support ring (302) arranged on the bottom of the bearing disc (301); and, A smoke taking member (400), which includes a smoke bag (401) and a connection cylinder (402) arranged on the side of the smoke bag (401).

2. The desulfurization tower sampling device according to claim 1, characterized in that: A connection hole (103) is formed in the outer wall of the connection cover (102), a piston plate (104) is arranged inside the bearing part (101), and an operating rod (105) is arranged at the bottom of the piston plate (104).

3. The desulfurization tower sampling device according to claim 2, wherein: The bearing part (101) includes a bearing cylinder (101a), a straight groove (101b) is formed in the inner wall of the bearing cylinder (101a), and an inclined groove (101c) is formed at the bottom of the straight groove (101b).

4. The desulfurization tower sampling device according to claim 3, characterized in that: The partition mechanism (201) includes a rotating ring (201a) arranged inside the bearing cylinder (101a), the cross section of the rotating ring (201a) is C-shaped, an isolation frame (201b) is arranged on the inner wall of the rotating ring (201a), a rotating plate (201c) is arranged inside the isolation frame (201b), a gear (201d) is arranged on the side of the rotating plate (201c), a tooth groove (201e) is formed inside the rotating ring (201a), and the tooth groove (201e) is engaged with the gear (201d).

5. The desulfurization tower sampling device according to claim 4, characterized in that: The control mechanism (202) includes a sliding plate (202a) arranged inside the bearing cylinder (101a), and an arc-shaped groove (202b) is formed in the outer wall of the sliding plate (202a).

6. The desulfurization tower sampling device according to claim 5, characterized in that: A sliding rod (201f) is arranged on the side of the rotating ring (201a), and the outer wall of the sliding rod (201f) is in contact with the arc-shaped groove (202b).

7. The desulfurization tower sampling device according to claim 6, characterized in that: A resisting plate (202c) is arranged on the side of the sliding plate (202a), a connecting arc plate (202d) is arranged on the side of the resisting plate (202c) close to the sliding plate (202a), and the connecting arc plate (202d) is made of an elastic material.

8. The desulfurization tower sampling device according to claim 7, wherein: A ring-shaped clamping column (202e) is arranged at the bottom of the connecting arc plate (202d), a sliding groove (406) is formed inside the ring-shaped clamping column (202e), a positioning block (202f) is arranged inside the ring-shaped clamping column (202e), the top of the positioning block (202f) is connected to the sliding plate (202a), a first elastic member (202g) is arranged at the bottom of the positioning block (202f), and the bottom of the first elastic member (202g) is connected to the inside of the ring-shaped clamping column (202e).

9. The desulfurization tower sampling device according to claim 8, wherein: A through hole (303) is formed in the outer wall of the bearing disc (301), and a pressing ring (304) is arranged inside the bearing disc (301).

10. The desulfurization tower sampling device according to claim 9, characterized in that: The connecting cylinder (402) is in contact with the bearing cylinder (101a). A sliding cover (403) is arranged on the side surface of the connecting cylinder (402). A support plate (404) is arranged at the bottom of the sliding cover (403). A sliding groove (406) is formed at the bottom of the support plate (404). A second elastic member (405) is arranged inside the sliding groove (406). The second elastic member (405) is connected to the support plate (404).

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