Smoke emission structure for boiler

Abstract

The utility model provides a soot emission structure for boiler, including waste heat recovery box and exhaust pipeline, just above and just below the waste heat recovery box are equipped with confluence box, two confluence box are connected through a plurality of heat exchange pipe, and the heat exchange pipe passes through the waste heat recovery box, and the exhaust pipeline passes through the waste heat recovery box. The smoke exhaust pipeline is installed on the upper surface of a confluence box at the top of the waste heat recovery box, a plurality of smoke alarms are installed on the side face of the smoke exhaust pipeline from top to bottom, temporary smoke exhaust pipes are symmetrically arranged on the two sides of the smoke exhaust pipeline, and the top ends of the temporary smoke exhaust pipes are connected with the top end of the side face of the smoke exhaust pipeline; and the bottom end of the temporary smoke exhaust pipe is connected with a confluence box at the top end of the waste heat recovery box. And the smoke exhaust pipeline is installed at the top end of the waste heat recovery box, the two temporary smoke exhaust pipes are symmetrically arranged on the two sides of the smoke exhaust pipeline, and the smoke alarm is installed on the smoke exhaust pipeline, so that an alarm can be conveniently given out when smoke leakage occurs in the smoke exhaust pipeline, and workers can conveniently maintain the smoke exhaust pipeline in time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler technical field, concretely is a kind of smoke emission structure for boiler. BACKGROUND

[0002] Boiler exhaust has strict requirements, need to utilize smoke duct and guide the boiler smoke into waste heat recovery mechanism, dust removal mechanism and desulfurization and denitrification mechanism, to reach the requirement of heat recovery and boiler smoke pollution-free or low-pollution emission.

[0003] Chinese patent authorized announcement No.CN217715014U discloses a kind of boiler exhaust device, it includes: smoke duct, ash collecting box, top cover, spiral baffle, spiral baffle includes spiral blade and connecting rod, spiral blade is in the outside of connecting rod spiral shape encircles, spiral baffle upper portion is arranged in the inside of smoke duct, smoke duct inner surface and the edge of spiral blade outside fit, ash collecting box and the connecting rod of spiral baffle lower portion are connected by screw thread, ash collecting box and smoke duct are rotatably connected, top cover is arranged on the upper portion of smoke duct, and is fixedly connected by bolt, smoke duct includes pipe outer wall and pipe inner wall, water storage tank is formed between pipe outer wall and pipe inner wall, water outlet pipe, water inlet pipe and smoke duct are provided on smoke duct, water outlet pipe and water inlet pipe are communicated with water storage tank, and smoke duct is communicated with smoke duct.The detachable spiral baffle of the boiler exhaust device and smoke duct are convenient to clean, water storage tank can absorb the heat in flue gas, avoid the waste of resources.

[0004] The boiler exhaust device provided by the above patent can recover waste heat from boiler smoke, but this boiler exhaust device does not have a smoke leakage alarm device and does not have a temporary smoke exhaust mechanism, which is not conducive to timely maintenance of the smoke exhaust pipe when the smoke exhaust pipe is damaged. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of smoke emission structure for boiler, mainly solves the problems that the existing boiler exhaust device does not have a smoke leakage alarm device and does not have a temporary smoke exhaust mechanism, which is not conducive to timely maintenance of the smoke exhaust pipe when the smoke exhaust pipe is damaged.

[0006] The utility model is realized as follows:

[0007] The utility model provides a soot discharging structure for boiler, including waste heat recovery tank and smoke duct, the waste heat recovery tank is provided with the flow box above and below, the flow box is connected through a plurality of heat exchange pipes between two, and the heat exchange pipe passes through waste heat recovery tank, and the smoke duct is installed on the flow box top surface of waste heat recovery tank top, a plurality of smoke alarms are installed from top to bottom to the side of smoke duct, and the temporary smoke duct is symmetrically equipped with on both sides of smoke duct, the temporary smoke duct top end is connected with the side top end of smoke duct, and the temporary smoke duct bottom end is connected with the flow box of waste heat recovery tank top end.

[0008] Preferably, the waste heat recovery tank one side and the other side top are equipped with the external connection pipe, and the external connection pipe end is equipped with the adapter cap, is connected with the water pipe, and the flow box top surface of waste heat recovery tank top is symmetrically equipped with the throttle valve on both sides, and the throttle valve top end is equipped with the adapter.

[0009] Preferably, the flow box back to the middle of waste heat recovery tank one side is equipped with the connecting pipe, and the connecting pipe end is equipped with the flange, and the flange edge is equipped with a plurality of flange holes.

[0010] Preferably, the smoke duct top end and bottom end are equipped with the connecting disc, and the connecting disc edge is uniformly equipped with a plurality of connecting holes, and the temporary smoke duct bottom end is equipped with the connecting cap.

[0011] Preferably, the smoke duct side is equipped with a plurality of installation platforms from top to bottom, and the installation platform middle is equipped with the thread groove, and the smoke duct side bottom end is installed with the ball valve, and the ball valve is equipped with the control handle.

[0012] Preferably, the smoke alarm back is equipped with the stud, and the smoke alarm side is equipped with the wire, and the wire end is equipped with the plug.

[0013] Preferably, the waste heat recovery tank bottom edge corner is equipped with the connecting head, and the connecting head middle is equipped with the connecting groove, and the connecting groove is connected with the supporting leg.

[0014] Preferably, the supporting leg top end is equipped with the threaded joint, the supporting leg bottom end is equipped with the bottom plate, and the bottom plate edge is uniformly equipped with a plurality of bottom holes.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1. This utility model features a flue gas duct installed at the top of the waste heat recovery box. Two temporary flue gas pipes are symmetrically arranged on both sides of the flue gas duct, and a smoke alarm is installed on the flue gas duct to trigger an alarm when there is a smoke leak. This allows staff to repair the flue gas duct in a timely manner. At the same time, the temporary flue gas pipes can serve as a temporary smoke exhaust channel when repairing the flue gas duct, avoiding the disadvantage of having to stop the boiler when repairing the flue gas duct, and also making it easier for the technicians to quickly repair the flue gas duct.

[0017] 2. This utility model has multiple support legs installed at the bottom of the waste heat recovery box, which can support the bottom of the boiler, so that the waste heat recovery box can work stably. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a structural schematic diagram of the waste heat recovery box of this utility model from a front-end oblique downward view.

[0020] Figure 3 This is a structural schematic diagram of the waste heat recovery box of this utility model from a front-end oblique downward view.

[0021] Figure 4 This is a schematic diagram of the structure of the smoke exhaust pipe of this utility model;

[0022] Figure 5 This is a schematic diagram of the smoke alarm of this utility model;

[0023] Figure 6 This is a schematic diagram of the support leg of this utility model.

[0024] 1. Waste heat recovery box; 11. Manifold box; 12. External pipe; 13. Adapter cap; 14. Heat exchange tube; 15. Connecting pipe; 16. Flange; 17. Flange hole; 18. Throttling valve; 181. Adapter; 19. Connector; 191. Connecting groove; 2. Smoke exhaust pipe; 21. Connecting plate; 22. Connecting hole; 23. Mounting platform; 24. Threaded groove; 25. Temporary smoke exhaust pipe; 26. Connecting cap; 27. Ball valve; 28. Control handle; 3. Smoke alarm; 31. Stud; 32. Wire; 33. Plug; 4. Support leg; 41. Threaded joint; 42. Base plate; 43. Borehole. Detailed Implementation

[0025] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relationship.For the ordinary skill in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0026] The utility model will be further described below in connection with the drawings and specific embodiments:

[0027] Embodiment 1

[0028] As Figure 1 And Figure 2 As shown in a kind of smoke emission structure for boiler, including waste heat recovery tank 1 and exhaust flue 2, waste heat recovery tank 1 is convenient for the heat recovery in boiler smoke, exhaust flue 2 is convenient for discharging smoke.Waste heat recovery tank 1 top and just below are equipped with confluence box 11, and the multiple heat exchange pipes 14 are connected between two confluence boxes 11, and heat exchange pipe 14 passes through waste heat recovery tank 1, confluence box 11 is convenient for smoke from one confluence box 11 into heat exchange pipe 14, and from another confluence box 11 gather together and discharge by exhaust flue 2.Heat exchange pipe 14 passes through waste heat recovery tank 1 is convenient for smoke to pass through heat exchange pipe 14 and the water inside waste heat recovery tank 1 occurs heat exchange, to recover the waste heat in smoke.And exhaust flue 2 is installed on waste heat recovery tank 1 top confluence box 11 upper surface, and multiple smoke alarms 3 are installed on the side of exhaust flue 2 from top to bottom, smoke alarm 3 is convenient for when the smoke leakage of exhaust flue 2 can timely send alarm, to facilitate staff timely maintenance to exhaust flue 2.And exhaust flue 2 both sides are symmetrically equipped with temporary exhaust flue 25, temporary exhaust flue 25 top end is connected with the side top end of exhaust flue 2, and temporary exhaust flue 25 bottom end is connected with the confluence box 11 of waste heat recovery tank 1 top end, temporary exhaust flue 25 is convenient for when exhaust flue 2 maintenance smoke can be discharged by temporary exhaust flue 25, to avoid the problem that exhaust flue 2 needs to stop boiler when being maintained.

[0029] As Figure 2As shown, the waste heat recovery tank 1 side and the other side top are provided with external pipe 12, external pipe 12 end is provided with adapter cap 13, for connecting with water pipe, convenient water pipe to the waste heat recovery tank 1 inside injection, also convenient waste heat recovery tank 1 inside water outflow. Waste heat recovery tank 1 top of the current box 11 upper surface both sides are provided with throttle valve 18, throttle valve 18 is convenient to control temporary exhaust pipe 25, convenient temporary exhaust pipe 25 close. Throttle valve 18 top is provided with adapter head 181, adapter head 181 is convenient temporary exhaust pipe 25 and adapter head 181 connection. Two current box 11 back to the middle of one side of waste heat recovery tank 1 is provided with connecting pipe 15, connecting pipe 15 end is provided with flange plate 16, flange plate 16 edge is provided with a plurality of flange hole 17, connecting pipe 15 with flange plate 16 and flange hole 17, is convenient waste heat recovery tank 1 and boiler and exhaust pipe 2 connection.

[0030] As shown in the figure, Figure 4 The exhaust pipe 2 top and bottom are provided with connecting disc 21, connecting disc 21 edge is uniformly provided with a plurality of connecting hole 22, the cooperation of connecting disc 21 and connecting hole 22 is convenient to install exhaust pipe 2 by bolt, convenient for the fixation of exhaust pipe 2. Temporary exhaust pipe 25 bottom is provided with connecting cap 26, connecting cap 26 is convenient for temporary exhaust pipe 25 and throttle valve 18 connection. Exhaust pipe 2 side from top to bottom is provided with a plurality of mounting table 23, mounting table 23 middle is provided with screw groove 24, the cooperation of mounting table 23 and installation groove is convenient for exhaust pipe 2 and smoke alarm 3 connection. Exhaust pipe 2 side bottom is provided with ball valve 27, ball valve 27 is convenient to control the opening and closing of exhaust pipe 2. Ball valve 27 is provided with control handle 28, control handle 28 is convenient to rotate ball valve 27, convenient for the opening and closing of ball valve 27.

[0031] As shown in the figure, Figure 5 The back of the smoke alarm 3 is provided with stud 31, which is convenient for the connection of the smoke alarm 3 and the exhaust pipe 2. And the side of the smoke alarm 3 is provided with wire 32, the end of which is provided with plug 33. The cooperation of wire 32 and plug 33 is convenient for the use of smoke alarm 3.

[0032] Working principle: when in use, connect the external pipe 12 at the bottom end of the side of the waste heat recovery tank 1 to the water inlet pipe, and connect the external pipe 12 at the top end of the side of the waste heat recovery tank 1 to the water storage pipe, then the flue gas discharged from the boiler will be dispersed into each heat exchange pipe 14 through the bottom flow collector 11, the flue gas exchanges heat with the water in the waste heat recovery tank 1 through the heat exchange pipe 14, achieving the purpose of waste heat recovery. Then the cooled flue gas will be discharged through the smoke exhaust pipe 2, if the smoke exhaust pipe 2 has a smoke leakage problem, the ball valve 27 can be used to close the smoke exhaust pipe 2, then the throttle valve 18 is opened, so that the smoke dust is discharged through the temporary smoke exhaust pipe 25, then the smoke exhaust pipe 2 can be repaired. Compared with the prior art, the smoke exhaust pipe 2 is installed at the top end of the waste heat recovery tank 1, two temporary smoke exhaust pipes 25 are symmetrically arranged on the two sides of the smoke exhaust pipe 2, and the smoke exhaust pipe 2 is provided with a smoke alarm 3, which can alarm when the smoke exhaust pipe 2 has a smoke leakage problem, so that the staff can repair the smoke exhaust pipe 2 in time, and the temporary smoke exhaust pipe 25 can be used as a temporary smoke exhaust passage when repairing the smoke exhaust pipe 2, avoiding the need to stop the boiler when repairing the smoke exhaust pipe 2, and facilitating the workmen to quickly repair the smoke exhaust pipe 2.

[0033] Example 2

[0034] As shown in Figure 1 and Figure 2 , a smoke dust discharge structure for a boiler, comprising a waste heat recovery tank 1 and a smoke exhaust pipe 2, the waste heat recovery tank 1 is convenient for recovering heat in the boiler smoke dust, and the smoke exhaust pipe 2 is convenient for discharging smoke dust. The waste heat recovery tank 1 is provided with a flow collector 11 above and below, the two flow collectors 11 are connected by a plurality of heat exchange pipes 14, and the heat exchange pipes 14 pass through the waste heat recovery tank 1, the flow collector 11 is convenient for smoke dust to enter the heat exchange pipe 14 from one flow collector 11, and to be collected together from another flow collector 11 and discharged through the smoke exhaust pipe 2. The heat exchange pipe 14 passes through the waste heat recovery tank 1, which is convenient for smoke dust to exchange heat with the water in the waste heat recovery tank 1 through the heat exchange pipe 14, so as to recover the waste heat in the smoke dust. And the smoke exhaust pipe 2 is installed on the upper surface of the flow collector 11 at the top of the waste heat recovery tank 1, a plurality of smoke alarms 3 are installed on the side of the smoke exhaust pipe 2 from top to bottom, the smoke alarm 3 is convenient for timely alarm when the smoke exhaust pipe 2 has a smoke leakage problem, so as to facilitate the staff to repair the smoke exhaust pipe 2 in time. And the smoke exhaust pipe 2 is symmetrically provided with a temporary smoke exhaust pipe 25 on the two sides, the top end of the temporary smoke exhaust pipe 25 is connected with the top end of the smoke exhaust pipe 2, and the bottom end of the temporary smoke exhaust pipe 25 is connected with the flow collector 11 at the top end of the waste heat recovery tank 1, the temporary smoke exhaust pipe 25 is convenient for smoke dust to be discharged through the temporary smoke exhaust pipe 25 when the smoke exhaust pipe 2 is repaired, so as to avoid the problem that the boiler needs to be stopped when the smoke exhaust pipe 2 is repaired.

[0035] As shown in Figure 2As shown, the waste heat recovery tank 1 side and the other side top are provided with external pipe 12, external pipe 12 end is provided with adapter cap 13, for connecting with water pipe, convenient water pipe to the waste heat recovery tank 1 inside injection, also convenient waste heat recovery tank 1 inside water outflow. Waste heat recovery tank 1 top of the commutating box 11 upper surface both sides are provided with throttle valve 18, throttle valve 18 is convenient to control temporary exhaust pipe 25, convenient temporary exhaust pipe 25 close. Throttle valve 18 top is provided with adapter head 181, adapter head 181 is convenient temporary exhaust pipe 25 and adapter head 181 connection. Two commutating box 11 back to the middle of one side of waste heat recovery tank 1 is provided with connecting pipe 15, connecting pipe 15 end is provided with flange plate 16, flange plate 16 edge is provided with multiple flange hole 17, connecting pipe 15 and flange plate 16 and flange hole 17 cooperation is convenient waste heat recovery tank 1 and boiler and exhaust pipe 2 connection.

[0036] As shown in Figure 4 , the exhaust pipe 2 top and bottom are provided with connecting disc 21, connecting disc 21 edge is uniformly provided with multiple connecting hole 22, connecting disc 21 and connecting hole 22 cooperation is convenient to install exhaust pipe 2 by bolt, convenient exhaust pipe 2 fixation. Temporary exhaust pipe 25 bottom is provided with connecting cap 26, connecting cap 26 is convenient temporary exhaust pipe 25 and throttle valve 18 connection. Exhaust pipe 2 side from top to bottom is provided with multiple installation table 23, installation table 23 middle is provided with screw groove 24, installation table 23 and installation groove cooperation is convenient exhaust pipe 2 and smoke alarm 3 connection. Exhaust pipe 2 side bottom is provided with ball valve 27, ball valve 27 is convenient to control the opening and closing of exhaust pipe 2. Ball valve 27 is provided with control handle 28, control handle 28 is convenient to rotate ball valve 27, convenient ball valve 27 opening and closing.

[0037] As shown in Figure 5 , the back of the smoke alarm 3 is provided with stud 31, which is convenient for the smoke alarm 3 to connect with the exhaust pipe 2. And the side of the smoke alarm 3 is provided with wire 32, and the end of the wire 32 is provided with plug-in head 33. The cooperation of the wire 32 and the plug-in head 33 is convenient for the smoke alarm 3 to be powered on.

[0038] As shown in Figure 1 and Figure 3 , the bottom corner of the waste heat recovery tank 1 is provided with connecting head 19, the middle of the connecting head 19 is provided with connecting groove 191, the connecting groove 191 is connected with foot 4, the connecting head 19 and the connecting groove 191 are convenient for installing foot 4, and the foot 4 is convenient for disassembling the foot 4, and the foot 4 is convenient for the waste heat recovery tank 1 to be stable on the boiler.

[0039] As shown in Figure 6As shown, the top end of the leg 4 is provided with a threaded joint 41, which is convenient for the threaded connection of the leg 4 and the waste heat recovery tank 1.

[0040] The above is only the preferred embodiment of the present application, and is not used to limit the present application, and for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A smoke discharging structure for a boiler, characterized by, Including waste heat recovery tank (1) and exhaust flue (2), the waste heat recovery tank (1) is provided with the flow box (11) above and below, the flow box (11) is connected by multiple heat exchange pipes (14) between two, and the heat exchange pipe (14) passes through the waste heat recovery tank (1), and the exhaust flue (2) is installed on the upper surface of the flow box (11) on the top of the waste heat recovery tank (1), multiple smoke alarms (3) are installed from top to bottom on the side of the exhaust flue (2), and temporary exhaust pipe (25) is symmetrically arranged on both sides of the exhaust flue (2), the top end of the temporary exhaust pipe (25) is connected with the top end of the exhaust flue (2) side, and the bottom end of the temporary exhaust pipe (25) is connected with the flow box (11) on the top end of the waste heat recovery tank (1).

2. A smoke discharging structure for a boiler according to claim 1, wherein The waste heat recovery tank (1) is provided with the external connection pipe (12) on one side and the other side top, the external connection pipe (12) is provided with the adapter cap (13) on the end, is connected with the water pipe, the flow box (11) on the top of the waste heat recovery tank (1) is provided with the throttle valve (18) on the upper surface of both sides, and the throttle valve (18) is provided with the adapter (181) on the top end.

3. A smoke discharging structure for a boiler according to claim 2, wherein The middle part of one side of the two flow boxes (11) away from the waste heat recovery tank (1) is provided with the connecting pipe (15), the end of the connecting pipe (15) is provided with the flange plate (16), and the edge of the flange plate (16) is provided with multiple flange holes (17).

4. A smoke discharging structure for a boiler according to claim 1, wherein The top end and the bottom end of the exhaust flue (2) are provided with the connecting disc (21), the edge of the connecting disc (21) is uniformly provided with multiple connecting holes (22), and the bottom end of the temporary exhaust pipe (25) is provided with the connecting cap (26).

5. A flue gas discharge structure for a boiler according to claim 4, characterized in that Multiple mounting tables (23) are arranged on the side of the exhaust flue (2) from top to bottom, the middle part of the mounting table (23) is provided with the threaded groove (24), the ball valve (27) is installed on the bottom end of the side of the exhaust flue (2), and the ball valve (27) is provided with the control handle (28).

6. A smoke discharging structure for a boiler according to claim 1, wherein The back of the smoke alarm (3) is provided with the stud (31), and the side of the smoke alarm (3) is provided with the wire (32), and the end of the wire (32) is provided with the plug connector (33).

7. A fume exhaust structure for a boiler according to any one of claims 1 to 6, characterized in that The bottom surface of the waste heat recovery tank (1) is provided with the connecting head (19) at the corner, the middle part of the connecting head (19) is provided with the connecting groove (191), and the connecting groove (191) is connected with the supporting leg (4).

8. A flue gas discharge structure for a boiler according to claim 7, characterized in that The top end of the supporting leg (4) is provided with the threaded connector (41), the bottom end of the supporting leg (4) is provided with the bottom plate (42), and the edge of the bottom plate (42) is uniformly provided with multiple bottom holes (43).

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