Regulating type spray gun for boiler flue gas denitration and desulfurization

Abstract

This utility model relates to the field of denitrification spray gun technology, specifically an adjustable spray gun for boiler flue gas denitrification and desulfurization, including a secondary gun barrel assembly and a gun channel clearing component disposed within the secondary gun barrel assembly; the secondary gun barrel assembly includes a main pipe and a daughter pipe, and an anti-detachment plug disposed at the outer end of the main pipe; the main pipe has two sliding grooves and two limiting grooves inside. By setting the existing spray gun barrel as a spliced ​​secondary gun barrel assembly, and setting the gun channel clearing component inside the secondary gun barrel assembly, after the fluid and flue gas are transferred through the internal part of the secondary gun barrel assembly, the pressurized and assisted rotating nozzle drives two stirring rods to continuously rotate the flow channel inside the gun barrel, and the gun channel clearing component performs relative extension vibration according to the pressure change inside the flow channel, thereby effectively improving the clearing efficiency of the flow channel inside the gun barrel, and thus avoiding the problem of abnormal shaking caused by high interference from blockages in the flow channel inside the gun barrel.

Description

Technical Field

[0001] This utility model relates to the field of denitrification spray gun technology, specifically an adjustable spray gun for boiler flue gas denitrification and desulfurization. Background Technology

[0002] The denitrification and desulfurization spray gun is one of the devices used to remove nitrogen oxides (NOx) from industrial waste gas. It uses a high-efficiency catalyst to reduce NOx to nitrogen (N2) at a relatively low temperature. Therefore, the use of the denitrification and desulfurization spray gun can effectively reduce the pollution of the environment caused by flue gas release.

[0003] However, the denitrification and desulfurization spray gun still has some defects in actual use. Due to the narrow internal flow channel of the spray gun and the large impurity content in the flue gas, once the fluid flow inside the spray gun is uneven, the internal flow channel of the gun barrel will be blocked. In severe cases, the flue gas will form a vortex phenomenon in the flow inside the spray gun, which will cause the spray gun to shake abnormally.

[0004] In view of this, an adjustable spray gun for boiler flue gas denitrification and desulfurization was designed to solve the above problems. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows:

[0007] An adjustable spray gun for boiler flue gas denitrification and desulfurization includes a secondary gun tube assembly and a gun channel unblocking component disposed within the secondary gun tube assembly. The secondary gun tube assembly includes a main tube and a daughter tube, and an anti-detachment plug disposed at the outer end of the main tube. The main tube has two sliding grooves and two limiting grooves inside. The gun channel unblocking component includes a gasket disposed between the main tube and the daughter tube, two clamps installed inside the gasket, an auxiliary impeller movably installed inside the two clamps, an insert rod disposed inside the auxiliary impeller, a beam rod mounted on the insert rod, a nozzle disposed at the other end of the beam rod, and two stirring rods installed inside the nozzle.

[0008] In a preferred embodiment, the present invention may be further configured as follows: the gun channel clearing assembly further includes two clamps disposed outside the insertion rod, a sleeve disposed outside the insertion rod and located between the two clamps, two slide rods installed outside the sleeve, an internal slide bar disposed in the middle of the slide rod, and an external slide plate installed at the outer end of the slide rod.

[0009] In a preferred embodiment, the present invention can be further configured such that: the end of the sub-tube facing the mother tube has evenly distributed grooves, and fixing bolts are provided in the grooves.

[0010] In a preferred embodiment, the present invention can be further configured as follows: a pad is installed on the inner wall of the limiting groove, a guide rod is installed inside the pad, an end cap is installed on the outer end of the guide rod, and a spring is provided outside the guide rod.

[0011] In a preferred embodiment, the present invention can be further configured such that: the external sliding plate has an overall L-shaped structure, and the end of the external sliding plate facing the pad has a through hole adapted to the guide rod.

[0012] In a preferred embodiment, the present invention can be further configured such that: annular grooves are provided in the two adjacent ends of the mother tube and the daughter tube, and a sealing gasket is provided in the annular grooves.

[0013] In a preferred embodiment, the present invention can be further configured such that: the two ends of the auxiliary impeller are provided with arc-shaped slots, and the auxiliary impeller is movably installed in the circular holes in the middle of the two clamps, and the interior of the auxiliary impeller is provided with a cross-shaped insertion hole.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] 1. This utility model sets the barrel of the existing spray gun as a two-stage barrel assembly with a spliced ​​structure, and sets a gun channel unblocking component inside the two-stage barrel assembly. As the fluid and smoke are transferred through the two-stage barrel assembly, the pressurized and assisted-rotating nozzle drives two stirring rods to continuously rotate the flow channel inside the barrel. The gun channel unblocking component expands and vibrates relative to the pressure change inside the flow channel, thereby effectively improving the unblocking efficiency of the flow channel inside the barrel and avoiding the problem of abnormal shaking caused by high interference from blockages in the flow channel inside the barrel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the use of this utility model;

[0017] Figure 2 This is a schematic diagram of the barrel assembly of this utility model;

[0018] Figure 3 This is an exploded view of the barrel assembly of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This utility model Figure 3 Enlarged view of point B in the middle;

[0021] Figure 6 This utility model Figure 3 Enlarged diagram of point C in the middle.

[0022] Figure label:

[0023] 100. Secondary barrel assembly; 110. Main tube; 1101. Daughter tube; 1102. Fixing bolt; 1103. Limiting groove; 1104. Slide groove; 120. Anti-detachment plug; 130. Sealing gasket; 140. Pad; 1401. Guide rod; 1402. Spring; 1403. End cap;

[0024] 200. Gun channel clearing component; 210. Pad; 2101. Clamp; 2102. Rotary impeller; 220. Insert rod; 2201. Beam rod; 2202. Clamp seat; 230. Nozzle; 240. Stirring rod; 250. Rod sleeve; 2501. Slide rod; 260. Internal slide bar; 270. External slide plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0026] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0027] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an adjustable spray gun for boiler flue gas denitrification and desulfurization.

[0028] Example 1:

[0029] Combination Figures 1 to 6 As shown, the present invention provides an adjustable spray gun for boiler flue gas denitrification and desulfurization, including a secondary gun barrel assembly 100 and a gun channel unblocking assembly 200 disposed in the secondary gun barrel assembly 100. The secondary gun barrel assembly 100 is used to provide an effective transfer path for fluid and flue gas, and the gun channel unblocking assembly 200 is used to continuously unblock the flow channel in the secondary gun barrel assembly 100.

[0030] The secondary barrel assembly 100 includes a main tube 110, a daughter tube 1101, and an anti-dislodgement plug 120 disposed at the outer end of the main tube 110;

[0031] The inside of the main pipe 110 is provided with two sliding grooves 1104 and two limiting grooves 1103;

[0032] An annular groove is provided in each of the two adjacent ends of the mother tube 110 and the daughter tube 1101, and a sealing gasket 130 is provided in the annular groove.

[0033] The end of the sub-tube 1101 facing the mother tube 110 has evenly distributed grooves, and a fixing bolt 1102 is provided in the groove;

[0034] The gun channel clearing assembly 200 includes a gasket 210 disposed between the main pipe 110 and the daughter pipe 1101, two clamps 2101 installed inside the gasket 210, an auxiliary impeller 2102 movably installed inside the two clamps 2101, an insert rod 220 disposed inside the auxiliary impeller 2102, a beam rod 2201 installed on the insert rod 220, a nozzle 230 disposed at the other end of the beam rod 2201, and two stirring rods 240 installed inside the nozzle 230.

[0035] The auxiliary impeller 2102 has arc-shaped slots at both ends, and is movably installed in the round hole in the middle of the two clamps 2101. The auxiliary impeller 2102 also has a cross-shaped insertion hole inside.

[0036] When the fluid and flue gas enter the internal flow channel of the main pipe 110 through the sub-pipe 1101, the high-pressure fluid and flue gas will drive the auxiliary impeller 2102 to rotate. The auxiliary impeller 2102 will drive the insert rod 220 to rotate. The insert rod 220 will drive the nozzle 230 and the two stirring rods 240 to rotate continuously along the inner cavity of the main pipe 110. At this time, the fluid and flue gas flowing through the sub-pipe 1101 and the main pipe 110 can be effectively cleared.

[0037] When blockage occurs in the internal flow channels of the main pipe 110 and the daughter pipe 1101, the two pressure-reducing springs 1402 will extend outward, and the external sliding plate 270, sliding rod 2501 and rod sleeve 250 will be pushed to push the insert rod 220 and beam rod 2201 to extend laterally. Finally, the nozzle 230 will drive the stirring rod 240 to slide laterally along the inside of the main pipe 110, thereby accelerating the clearing efficiency of the blockage.

[0038] Example 2:

[0039] Combination Figures 2 to 5 As shown, based on Embodiment 1, a pad 140 is installed on the inner wall of the limiting groove 1103, a guide rod 1401 is installed inside the pad 140, an end 1403 is installed on the outer end of the guide rod 1401, and a spring 1402 is provided on the outside of the guide rod 1401.

[0040] The gun channel clearing assembly 200 also includes two clamps 2202 disposed outside the insertion rod 220, a rod sleeve 250 disposed outside the insertion rod 220 and located between the two clamps 2202, two slide rods 2501 installed outside the rod sleeve 250, an internal slide bar 260 disposed in the middle of the slide rod 2501, and an external slide plate 270 installed at the outer end of the slide rod 2501.

[0041] The external sliding plate 270 has an overall L-shaped structure, and the end of the external sliding plate 270 facing the pad 140 has a through hole adapted to the guide rod 1401.

[0042] Specifically, as the sub-pipe 1101 inputs fluid and flue gas into the inner cavity of the main pipe 110, the pressurized nozzle 230 drives the two clamps 2202 and the rod sleeve 250 to move laterally. The two sliding rods 2501 on both sides of the rod sleeve 250 drive the two external sliding plates 270 to compress the two springs 1402. Once the inner cavity of the main pipe 110 becomes blocked, causing the fluid and flue gas pressure to weaken, the depressurized nozzle 230 drives the two stirring rods 240 to slide laterally. With the rotation of the two stirring rods 240 after the lateral movement, the blockage can be effectively cleared.

[0043] The working principle and usage process of this utility model are as follows: When the secondary barrel assembly 100 is in use, as the flue gas is output outward along the internal flow channels of the daughter pipe 1101 and the mother pipe 110, the auxiliary impeller 2102, which is driven by the high-pressure flue gas, will drive the insert rod 220 and the beam rod 2201 to rotate. The nozzle 230, which is set at the outer end of the beam rod 2201, will drive the two stirring rods 240 to rotate along the internal flow channels of the mother pipe 110.

[0044] At this time, the flow channel inside the main pipe 110 remains effectively unobstructed during the agitation of the two stirring rods 240, and the nozzle 230 remains in a constant position under pressure in the unobstructed state inside the main pipe 110. The two springs 1402 are compressed under pressure. Once the flow channel inside the main pipe 110 and the daughter pipe 1101 becomes blocked, the two depressurized springs 1402 will push the external sliding plate 270 and the sliding rod 2501 to slide. Finally, the rod sleeve 250, under the constraint of the two clamps 2202, will drive the beam rod 2201 and the insert rod 220 to extend, thereby providing kinetic energy to clear blockages in the flow channel inside the main pipe 110 and the daughter pipe 1101.

[0045] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A regulating type spray gun for boiler flue gas denitration and desulfurization, comprising a two-stage gun barrel assembly (100), characterized in that, It also includes a gun passage clearing component (200) disposed within the secondary barrel assembly (100). The secondary barrel assembly (100) includes a main tube (110) and a daughter tube (1101) as well as an anti-detachment plug (120) disposed at the outer end of the main tube (110). The mother tube (110) has two sliding grooves (1104) and two limiting grooves (1103) inside. The gun channel clearing assembly (200) includes a gasket (210) disposed between the main pipe (110) and the daughter pipe (1101), two clamps (2101) installed inside the gasket (210), an auxiliary impeller (2102) movably installed inside the two clamps (2101), an insert rod (220) disposed inside the auxiliary impeller (2102), a beam rod (2201) installed on the insert rod (220), a nozzle (230) disposed at the other end of the beam rod (2201), and two stirring rods (240) installed inside the nozzle (230).

2. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 1, characterized in that, The gun channel clearing assembly (200) also includes two clamps (2202) disposed outside the insert rod (220), a rod sleeve (250) disposed outside the insert rod (220) and located between the two clamps (2202), two slide rods (2501) installed outside the rod sleeve (250), an internal slide bar (260) disposed in the middle of the slide rod (2501), and an external slide plate (270) installed at the outer end of the slide rod (2501).

3. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 1, characterized in that, The sub-tube (1101) has evenly distributed grooves at one end facing the mother tube (110), and a fixing bolt (1102) is provided in the groove.

4. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 1, characterized in that, The inner wall of the limiting groove (1103) is equipped with a pad (140), a guide rod (1401) installed inside the pad (140), an end (1403) installed at the outer end of the guide rod (1401), and a spring (1402) provided outside the guide rod (1401).

5. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 2, characterized in that, The external sliding plate (270) has an overall L-shaped structure, and the end of the external sliding plate (270) facing the pad (140) has a through hole adapted to the guide rod (1401).

6. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 1, characterized in that, The mother tube (110) and the daughter tube (1101) are provided with annular grooves at their two adjacent ends, and a sealing gasket (130) is provided in the annular groove.

7. The adjustable injection lance for boiler flue gas denitration and desulfurization according to claim 1, characterized in that, The impeller (2102) is provided with arc-shaped slots at both ends, and the impeller (2102) is movably installed in the circular hole in the middle of the two clamps (2101), and the interior of the impeller (2102) is provided with a cross-shaped insertion hole.

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