Escape-proof denitration flue convenient to install

Abstract

The utility model relates to the technical field of denitration flues, and discloses an anti-escape denitration flue convenient to install, which comprises a smoke outlet, a denitration flue sleeved inside the smoke outlet, a fixing sleeve sleeved outside the denitration flue, and a connecting assembly arranged at the upper part of the smoke outlet, the connecting assembly comprises a dismounting and mounting mechanism arranged on the upper portion of the smoke outlet, an anti-escape mechanism is arranged on the upper portion of the smoke outlet, the fixing sleeve is in threaded connection with the exterior of the smoke outlet through an internal thread, the end, away from the rotating rod, of the first spring is fixedly connected with the limiting block, and the clamping rod and the clamping groove are arranged in a clamped mode. The upper portion of the positioning block is fixedly connected with the annular reticulated shell, one end of the second spring is fixedly connected with the abutting block, and the abutting block and the abutting groove are arranged in a clamped mode. The device disclosed by the utility model solves the problem that the applicability of the device is influenced because the catalyst is inconvenient to replace manually because the annular reticulated shell is relatively inconvenient to disassemble and assemble in the conventional device.

Description

Technical Field

[0001] The utility model relates to the technical field of denitrification flue technology, in particular to an anti-escape denitrification flue which is easy to install. Background Art

[0002] At present, the flue gas desulfurization process is relatively mature, among which the wet process occupies the largest market share. The flue gas denitrification process currently mostly adopts the selective catalytic reduction method (SCR). This method uses ammonia as a reducing agent to reduce NOx to N2 under the action of a catalyst. The process system and equipment are relatively complex. The existing equipment system processes desulfurization and denitrification separately, which makes the entire desulfurization and denitrification process complicated and the equipment investment cost high.

[0003] Patent document CN 215539837 U discloses an anti-escape denitrification flue for SCR and SNCR combined denitrification. The device is provided with an annular mesh shell and an annular plate at the bottom of the annular mesh shell inside the flue main body, and a catalyst can be provided inside the annular mesh shell. When ammonia enters the flue through the first catalyst, the catalyst in the annular mesh shell of the flue can be used to perform secondary adsorption on the ammonia, thereby preventing ammonia from escaping. The annular mesh shell can be pushed out of the flue by an electric telescopic rod, and the annular mesh shell and the catalyst can be replaced. However, the device is inconvenient to disassemble and assemble the annular mesh shell, which makes it inconvenient to manually replace the catalyst, thereby affecting the applicability of the device.

[0004] To this end, we proposed an easy-to-install anti-escape denitrification flue to solve the problem. Utility Model Content

[0005] The purpose of the utility model is to provide an anti-escape denitrification flue that is easy to install, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-escape type denitrification flue that is easy to install, comprising a smoke outlet, a denitrification flue sleeved inside the smoke outlet, a fixed sleeve sleeved outside the denitrification flue, and a connecting component arranged on the upper part of the smoke outlet, the connecting component comprising a disassembly and assembly mechanism arranged on the upper part of the smoke outlet, and an anti-escape mechanism is arranged on the upper part of the smoke outlet.

[0007] Preferably, the disassembly and assembly mechanism includes a first mounting ring fixedly connected to the inner wall of the smoke outlet, a sealing ring fixedly connected to the upper part of the first mounting ring, an external thread is provided on the outer wall of the smoke outlet, an internal thread is provided on the inner wall of the fixed sleeve, a second mounting ring is fixedly connected to the inner wall of the denitrification flue, an annular mesh shell is arranged on the upper part of the second mounting ring, a clamping groove is provided on the upper part of the annular mesh shell, a rotating rod is rotatably connected to the upper part of the denitrification flue through a bearing, a clamping rod is movably connected to one end of the rotating rod, a limiting block is fixedly connected to the top of the clamping rod, a first spring is fixedly connected to the upper part of the rotating rod, a positioning groove is provided on the upper part of the second mounting ring, a positioning block is clamped on the inner wall of the positioning groove, a pressure groove is provided on the side wall of the positioning block, an inner groove is provided on the inner wall of the positioning groove, a pressure block is sleeved inside the inner groove, and a second spring is fixedly connected to the inner wall of the inner groove.

[0008] Preferably, the anti-escape mechanism includes a mounting frame fixedly mounted on the inner wall of the denitrification flue, a motor is fixedly mounted on the upper portion of the mounting frame, a wind wheel is fixedly mounted on the upper portion of the motor, a rotating shaft is fixedly connected to the upper portion of the wind wheel, and a propeller is fixedly connected to the upper portion of the rotating shaft.

[0009] Preferably, the fixing sleeve is threadedly connected to the outside of the smoke outlet via an internal thread. The cooperation of the fixing sleeve, the external thread, the internal thread, the first mounting ring and the sealing ring facilitates manual disassembly and assembly of the denitrification flue, thereby facilitating manual installation of the denitrification flue on the upper part of the smoke outlet.

[0010] Preferably, the first spring is fixedly connected to the limit block at one end away from the rotating rod, and the clamping rod is clamped with the clamping groove. Through the cooperation of the rotating rod, the clamping rod, the clamping groove and the first spring, it is convenient to manually disassemble the annular mesh shell, thereby facilitating manual replacement of the catalyst. When ammonia enters the denitrification flue, the catalyst in the annular mesh shell can be used to perform secondary adsorption of ammonia, thereby preventing ammonia from escaping.

[0011] Preferably, the upper part of the positioning block is fixedly connected to the annular mesh shell, one end of the second spring is fixedly connected to the pressing block, and the pressing block is clamped in the pressing groove. Through the cooperation of the positioning groove, the positioning block, the second spring, the pressing block and the pressing groove, the bottom of the annular mesh shell can be fixed, thereby making the annular mesh shell more stable during use.

[0012] Preferably, there are three propellers equidistantly distributed outside the rotating shaft. Through the cooperation of the wind wheel, the rotating shaft and the propeller, the ammonia flowing out of the flue can be re-drawn into the flue, thereby further preventing the ammonia from escaping.

[0013] Compared with the prior art, the anti-escape denitrification flue gas duct which is easy to install in the utility model has the following beneficial effects:

[0014] 1. By setting up the disassembly and assembly mechanism, under the action of the fixed sleeve, the external thread, the internal thread, the first mounting ring and the sealing ring, it is convenient for manual disassembly and assembly of the denitrification flue, so that it is convenient for manual installation of the denitrification flue on the upper part of the smoke outlet. Under the action of the rotating rod, the clamping rod, the clamping groove and the first spring, it is convenient for manual disassembly of the annular mesh shell, so that it is convenient for manual replacement of the catalyst. When ammonia enters the denitrification flue, the catalyst in the annular mesh shell can be used to perform secondary adsorption on the ammonia, so as to prevent ammonia from escaping.

[0015] 2. By setting up an anti-escape mechanism, the ammonia flowing out of the flue can be re-drawn into the flue under the action of the wind wheel, rotating shaft and propeller fan, thereby further preventing the ammonia from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the disassembly and assembly mechanism in the utility model;

[0019] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0020] Figure 5 It is a partial structural schematic diagram of the disassembly and assembly mechanism in the utility model;

[0021] Figure 6 It is a structural schematic diagram of the anti-escape mechanism in the utility model;

[0022] In the figure: 1. smoke outlet; 2. denitrification flue; 3. connecting assembly; 31. disassembly and assembly mechanism; 311. first mounting ring; 312. sealing ring; 313. external thread; 314. internal thread; 315. second mounting ring; 316. annular mesh shell; 317. snap-in groove; 318. rotating rod; 319. snap-in rod; 3110. first spring; 3111. positioning groove; 3112. positioning block; 3113. pressing groove; 3114. inner groove; 3115. pressing block; 3116. second spring; 32. anti-escape mechanism; 321. mounting frame; 322. motor; 323. wind wheel; 324. rotating shaft; 325. propeller fan; 4. fixing sleeve. DETAILED DESCRIPTION

[0023] 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. Example 1

[0024] like Figure 1-6 As shown, the anti-escape denitrification flue easy to install described in this embodiment includes a smoke outlet 1, a denitrification flue 2 sleeved inside the smoke outlet 1, a fixing sleeve 4 sleeved outside the denitrification flue 2, and a connecting component 3 arranged on the upper part of the smoke outlet 1, the connecting component 3 includes a disassembly and assembly mechanism 31 arranged on the upper part of the smoke outlet 1, an anti-escape mechanism 32 is arranged on the upper part of the smoke outlet 1, the disassembly and assembly mechanism 31 includes a first mounting ring 311 fixedly connected to the inner wall of the smoke outlet 1, a sealing ring 312 fixedly connected to the upper part of the first mounting ring 311, an external thread 313 is provided on the outer wall of the smoke outlet 1, an internal thread 314 is provided on the inner wall of the fixing sleeve 4, a second mounting ring 315 is fixedly connected to the inner wall of the denitrification flue 2, and the second mounting ring 315 is fixedly connected to the inner wall of the smoke outlet 1. An annular mesh shell 316 is arranged on the upper part, and a snap-in groove 317 is opened on the upper part of the annular mesh shell 316. A rotating rod 318 is rotatably connected to the upper part of the denitrification flue 2 through a bearing. A snap-in rod 319 is movably connected to one end of the rotating rod 318. A limiting block is fixedly connected to the top of the snap-in rod 319. A first spring 3110 is fixedly connected to the upper part of the rotating rod 318. A positioning groove 3111 is opened on the upper part of the second mounting ring 315. A positioning block 3112 is snapped on the inner wall of the positioning groove 3111. A pressing groove 3113 is opened on the side wall of the positioning block 3112. An inner groove 3114 is opened on the inner wall of the positioning groove 3111. A pressing block 3115 is sleeved inside the inner groove 3114. A second spring 3116 is fixedly connected to the inner wall of the inner groove 3114.

[0025] In this embodiment, the fixing sleeve 4 is threadedly connected to the outside of the smoke outlet 1 through the internal thread 314. Through the cooperation of the fixing sleeve 4, the external thread 313, the internal thread 314, the first mounting ring 311, and the sealing ring 312, it is convenient to manually disassemble and assemble the denitrification flue 2, thereby facilitating manual installation of the denitrification flue 2 on the upper part of the smoke outlet 1.

[0026] Furthermore, one end of the first spring 3110 away from the rotating rod 318 is fixedly connected to the limit block, and the clamping rod 319 is clamped with the clamping groove 317. Through the cooperation of the rotating rod 318, the clamping rod 319, the clamping groove 317 and the first spring 3110, it is convenient to manually disassemble the annular mesh shell 316, thereby facilitating manual replacement of the catalyst. When ammonia enters the denitrification flue 2, the catalyst in the annular mesh shell 316 can be used to perform secondary adsorption of ammonia, thereby preventing ammonia from escaping.

[0027] Furthermore, the upper part of the positioning block 3112 is fixedly connected to the annular mesh shell 316, one end of the second spring 3116 is fixedly connected to the pressing block 3115, and the pressing block 3115 is clamped in the pressing groove 3113. Through the cooperation of the positioning groove 3111, the positioning block 3112, the second spring 3116, the pressing block 3115 and the pressing groove 3113, the bottom of the annular mesh shell 316 can be fixed, so that the annular mesh shell 316 can be more stable during use.

[0028] When the denitrification flue 2 needs to be installed, the bottom end of the denitrification flue 2 is first manually inserted into the smoke outlet 1, and then the fixing sleeve 4 is manually rotated clockwise, so that the denitrification flue 2 can be fixed under the action of the internal thread 314 and the external thread 313. When the annular mesh shell 316 needs to be disassembled, it is only necessary to manually pull the clamping rod 319 upward to separate the clamping rod 319 from the clamping groove 317, and then manually rotate the rotating rod 318 to make the rotating rod 318 away from the upper part of the annular mesh shell 316, and then the annular mesh shell 316 can be manually taken out upward. Thereby, it is convenient to manually replace the catalyst, and when the annular mesh shell 316 needs to be fixed, it is only necessary to manually insert the positioning block 3112 fixedly connected to the bottom of the annular mesh shell 316 into the positioning groove 3111, and the second spring 3116 can clamp the pressing block 3115 and the pressing groove 3113 under the action of the elastic force, so that the bottom of the annular mesh shell 316 can be fixed, so that the annular mesh shell 316 can be made more stable during use, and then the clamping rod 319 and the clamping groove 317 can be manually re-clamped to achieve the fixing effect of the annular mesh shell 316. Example 2

[0029] like Figures 1 to 6 As shown, on the basis of Example 1, in the anti-escape denitrification flue which is easy to install described in this embodiment, the anti-escape mechanism 32 includes a mounting frame 321 fixedly installed on the inner wall of the denitrification flue 2, a motor 322 is fixedly installed on the upper part of the mounting frame 321, a wind wheel 323 is fixedly installed on the upper part of the motor 322, a rotating shaft 324 is fixedly connected to the upper part of the rotating shaft 324, and a propeller 325 is fixedly connected to the upper part of the rotating shaft 324.

[0030] In this embodiment, there are three propeller fans 325 equidistantly distributed outside the rotating shaft 324 . Through the cooperation of the wind wheel 323 , the rotating shaft 324 , and the propeller fans 325 , ammonia flowing out of the flue can be re-drawn into the flue, thereby further preventing ammonia from escaping.

[0031] When ammonia enters the denitrification flue 2, the denitrification operation can be performed through the catalyst in the annular mesh shell 316, and the wind wheel 323 is driven to rotate by the motor 322. The ammonia can be gathered to the middle part by the wind wheel 323, and the rotation of the wind wheel 323 can rotate the propeller fan 325 fixedly connected to the top of the wind wheel 323. The escaped ammonia can be re-absorbed into the interior of the denitrification flue 2 through the propeller fan 325, thereby achieving a better denitrification effect.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-escape denitrification flue that is easy to install, comprising a smoke outlet (1), a denitrification flue (2) sleeved inside the smoke outlet (1), a fixing sleeve (4) sleeved outside the denitrification flue (2), and a connecting assembly (3) arranged on the upper part of the smoke outlet (1), characterized in that: The connection assembly (3) comprises a disassembly and assembly mechanism (31) arranged on the upper part of the smoke outlet (1), and an anti-escape mechanism (32) is arranged on the upper part of the smoke outlet (1).

2. The anti-escape denitrification flue that is easy to install according to claim 1 is characterized in that: The disassembly and assembly mechanism (31) comprises a first mounting ring (311) fixedly connected to the inner wall of the smoke outlet (1), a sealing ring (312) fixedly connected to the upper part of the first mounting ring (311), an outer thread (313) provided on the outer wall of the smoke outlet (1), an inner thread (314) provided on the inner wall of the fixing sleeve (4), a second mounting ring (315) fixedly connected to the inner wall of the denitrification flue (2), an annular mesh shell (316) provided on the upper part of the second mounting ring (315), a clamping groove (317) provided on the upper part of the annular mesh shell (316), a rotating rod (318) rotatably connected to the upper part of the denitrification flue (2) via a bearing, and the rotating rod (31 8) One end is movably connected with a clamping rod (319), the top of the clamping rod (319) is fixedly connected to a limiting block, the upper part of the rotating rod (318) is fixedly connected to a first spring (3110), the upper part of the second mounting ring (315) is provided with a positioning groove (3111), the inner wall of the positioning groove (3111) is clamped with a positioning block (3112), the side wall of the positioning block (3112) is provided with a pressing groove (3113), the inner wall of the positioning groove (3111) is provided with an inner groove (3114), the inner wall of the inner groove (3114) is sleeved with a pressing block (3115), and the inner wall of the inner groove (3114) is fixedly connected to a second spring (3116).

3. The anti-escape denitrification flue that is easy to install according to claim 1 is characterized in that: The anti-escape mechanism (32) comprises a mounting frame (321) fixedly mounted on the inner wall of the denitrification flue (2); a motor (322) is fixedly mounted on the upper portion of the mounting frame (321); a wind wheel (323) is fixedly mounted on the upper portion of the motor (322); a rotating shaft (324) is fixedly connected to the upper portion of the wind wheel (323); and a propeller (325) is fixedly connected to the upper portion of the rotating shaft (324).

4. The anti-escape denitrification flue that is easy to install according to claim 2 is characterized in that: The fixing sleeve (4) is threadedly connected to the outside of the smoke outlet (1) via an internal thread (314).

5. The anti-escape denitrification flue that is easy to install according to claim 2 is characterized in that: One end of the first spring (3110) away from the rotating rod (318) is fixedly connected to the limit block, and the clamping rod (319) is clamped to the clamping groove (317).

6. The anti-escape denitrification flue that is easy to install according to claim 2 is characterized by: The upper portion of the positioning block (3112) is fixedly connected to the annular mesh shell (316), one end of the second spring (3116) is fixedly connected to the pressing block (3115), and the pressing block (3115) is clamped to the pressing groove (3113).

7. The anti-escape denitrification flue gas duct which is easy to install according to claim 3 is characterized in that: There are three propeller fans (325) which are equidistantly distributed outside the rotating shaft (324).

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