CN218237509U - Boiler tail gas device - Google Patents

Abstract

The utility model discloses a boiler tail gas device, which comprises a tail gas flue pipe which is communicated and fixed on the boiler smoke outlet. A mounting pipe is movable in the tail gas flue pipe, and the right end of the mounting pipe extends to the bottom of the tail gas flue pipe. On the right side, the installation pipe is screwed to the right end of the exhaust flue pipe, and the filter assembly is installed in the installation pipe for sealing and rotation. The utility model can effectively filter and purify the pollutants in the discharged tail gas through the setting of the filter assembly and the purification mechanism, reduce the pollution of the exhaust gas to the environment, and through the flow rate sensor, sound and light alarm, brake motor and control When one of the box-shaped filters is clogged, it can alarm in time to remind personnel and switch the use of the box-shaped filters, so as to achieve the purpose of alternately filtering and cleaning the two box-shaped filters, so that there is no need to stop when cleaning Exhaust gas discharge can effectively save downtime waiting time and improve filtration efficiency.

Description

A boiler exhaust device

technical field

The utility model relates to the technical field of boiler tail gas equipment, in particular to a boiler tail gas device.

Background technique

During the use of the boiler, a large amount of exhaust gas will be generated. Most of the exhaust gas discharged from the exhaust flue pipe of the boiler is filtered by a simple filter and directly discharged to the outside. The simple filter method can only filter dust and cannot treat pollutants. Because the tail gas contains a large amount of nitrogen oxides, the discharge of nitrogen oxides to the outside is easy to cause pollution to the environment and does not meet the exhaust emission standards; in addition, the long-term use of the filter screen is easy to cause blockage, which cannot appear on the filter screen When it is blocked, remind the personnel to clean it in time. Based on the above situation, we propose a boiler exhaust device.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a boiler tail gas device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A boiler tail gas device, comprising a tail gas flue pipe communicated and fixed on the boiler smoke outlet, a mounting pipe is movably sleeved inside the tail gas flue pipe, the right end of the mounting pipe extends to the right side of the tail gas flue pipe, and the mounting pipe It is threaded and fixed to the right end of the exhaust flue pipe, and a filter assembly is installed in the installation pipe to seal and rotate, and the exhaust gas is filtered through the filter assembly. The collection assembly is used to collect the exhausted exhaust gas and introduce it into the filter assembly. The left side of the exhaust gas collection assembly extends to the left side of the installation pipe. The top of the installation pipe is fixedly connected with a purification mechanism that communicates with the filter assembly. The purification mechanism is used To purify the filtered exhaust gas, the right side of the filter assembly is fixedly connected with a rotating rod, the top of the right side of the installation pipe is fixedly connected with an L-shaped mounting plate, and the bottom of the L-shaped mounting plate is fixedly connected with the output shaft and the rotating rod. The brake motor fixedly connected to the right end can drive the filter assembly to rotate through the cooperation of the brake motor and the rotating rod. The front side of the brake motor is fixed and electrically connected to the controller, and the right side of the L-shaped mounting plate is fixedly connected to the The sound and light alarm is electrically connected to the controller. The top of the installation pipe is connected to and fixed with a flow rate sensor. The flow rate sensor is used to detect the flow rate of the exhaust gas. The flow rate sensor is electrically connected to the controller. The gas end is connected with the purification mechanism.

Preferably, the filter assembly includes a circular block that is sealed and rotatably installed in the installation pipe, the right side of the circular block is fixedly connected with the left end of the rotating rod, and two rectangular holes are opened on the right side of the circular block, and the movable There is a box-shaped filter screen with an opening on the left side, through which the dust and impurities in the exhaust gas are filtered. The right side of the box-shaped filter screen is fixedly connected with a pull ring, and the left side of the circular block is fixedly installed with a The baffle, the right side of the baffle is provided with two air intake holes, and the air intake holes communicate with the corresponding rectangular holes.

Preferably, the exhaust gas collection assembly includes a first connecting pipe fixedly installed on the inner wall of the top of the installation pipe, the right end of the first connecting pipe is in sealing and movable contact with the left side of the baffle, and the first connecting pipe is in contact with the two air intake holes. The air intake hole at the top is connected and matched with the air intake hole at the bottom. The left end of the first connecting pipe is connected with and fixed with a gas collecting hood which is movably sleeved in the exhaust flue pipe. The exhaust gas in the exhaust flue pipe is collected.

Preferably, the purification mechanism includes a purification box fixedly connected to the inner wall of the top of the installation pipe, the top of the purification box is set as an opening, and a one-way valve with an outlet on the right side is embedded on the left side of the purification box, and the one-way valve The right side is communicated with and fixed with an L-shaped connecting pipe. The L-shaped connecting pipe is used to introduce gas into the purification box. The setting of the one-way valve can effectively avoid the phenomenon of gas backflow. The left side of the one-way valve and the upper rectangular The holes are connected, the right side of the circular block is in sealing and movable contact with the left side of the purification box, the bottom of the flow rate sensor is connected with the inside of the purification box, and the purification box is filled with nitrogen oxide absorption liquid. The nitrogen oxides in the exhaust gas are absorbed and purified, and the purification box is located above the rotating rod.

Preferably, the distance between the front inner wall and the rear inner wall of the rectangular hole is smaller than the distance between the front side and the rear side of the purification box, and the distance between the top inner wall and the bottom inner wall of the rectangular hole is smaller than that of the purification box. The distance between the top and the bottom is small, which is used to seal the upper rectangular hole through the purge box.

Preferably, the fixed sleeve in the installation tube is provided with two large bearings, the inner ring of the large bearings is fixedly connected with the outer side of the circular block, and the large bearings function as a rotating installation for the circular block.

Preferably, the top and the bottom of the installation pipe are fixedly connected with nuts, and the right end of the tail gas flue pipe is provided with two thread grooves, the internal threads of the thread grooves are provided with T-shaped fixing bolts, and the nuts are threaded on the corresponding T T-shaped fixing bolts, the installation block and the exhaust flue pipe are installed through the cooperation of T-shaped fixing bolts and nuts, and the installation block can be removed later.

Compared with the prior art, the beneficial effects of the utility model are:

1. Through the cooperation of the filter assembly, the exhaust gas collection assembly and the purification mechanism, the exhaust exhaust gas can be effectively filtered and purified, so that the pollutants in the exhaust gas can be effectively absorbed and the pollution of the exhaust gas to the environment can be reduced;

2. Through the cooperation of brake motor, controller, rotating rod, flow rate sensor and sound and light alarm, it can timely alarm and remind personnel when one of the box-shaped filter screens is blocked, and switch to use the box-shaped filter screen. The way to achieve the purpose of alternately filtering and cleaning the two box-shaped filter screens, so that there is no need to stop the exhaust gas discharge during cleaning, which can effectively save the waiting time for shutdown and improve the efficiency of filtration treatment;

The utility model can effectively filter and purify the pollutants in the discharged tail gas through the setting of the filter assembly and the purification mechanism, reduce the pollution of the exhaust gas to the environment, and through the flow rate sensor, sound and light alarm, brake motor and control When one of the box-shaped filters is clogged, it can alarm in time to remind personnel and switch the use of the box-shaped filters, so as to achieve the purpose of alternately filtering and cleaning the two box-shaped filters, so that there is no need to stop when cleaning Exhaust gas discharge can effectively save downtime waiting time and improve filtration efficiency.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a kind of boiler tail gas device that the utility model proposes;

Fig. 2 is the front view sectional structure schematic diagram of Fig. 1;

Fig. 3 is a right view structural diagram of a circular block of a boiler tail gas device proposed by the utility model.

In the figure: 100, boiler; 101, tail gas flue pipe; 1, installation pipe; 2, gas collecting hood; 3, first connecting pipe; 4, circular block; 5, baffle plate; 6, air intake hole; 7 , box-shaped filter screen; 8, purification box; 9, rotating rod; 10, L-shaped connecting pipe; 11, one-way valve; 12, flow sensor; 13, L-shaped mounting plate; 14, brake motor; 15, control device; 16, sound and light alarm; 17, rectangular hole.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a boiler exhaust device includes an exhaust flue pipe 101 connected and fixed on the smoke outlet of the boiler 100. An installation pipe 1 is movable in the exhaust flue pipe 101, and the right end of the installation pipe 1 extends to On the right side of the exhaust flue pipe 101, the installation pipe 1 is screwed to the right end of the exhaust flue pipe 101, wherein the top and bottom of the installation pipe 1 are fixedly connected with nuts, and the right end of the exhaust flue pipe 101 is provided with two thread grooves , the internal thread sleeve of the thread groove is provided with T-shaped fixing bolts, and the nut thread is sleeved on the corresponding T-shaped fixing bolts. The installation pipe 1 and the exhaust flue pipe 101 are connected through the T-shaped fixing bolts and nuts, which is convenient Afterwards, the installation tube 1 is removed, and the filter assembly is installed in the installation tube 1 in a sealed rotation, wherein the filter assembly includes a circular block 4 that is sealed and rotated in the installation tube 1, and the installation tube 1 is fixedly sleeved with two large bearings , the inside of the inner ring of the large bearing is fixedly connected with the outside of the circular block 4, and the rotation installation of the circular block 4 is realized through the large bearing. The right side of the circular block 4 is provided with two rectangular holes 17, and the movable sleeve in the rectangular hole 17 A box-shaped filter screen 7 is provided with an opening on the left side, and a pull ring is fixedly connected to the right side of the box-shaped filter screen 7, wherein the right side of the box-shaped filter screen 7 is fixedly connected to a connecting rod, and the pull ring is fixedly connected to the corresponding The right end of connecting rod, the left side of circular block 4 is fixedly equipped with baffle plate 5, and baffle plate 5 is used for shielding two rectangular holes 17, and the right side of baffle plate 5 is provided with two air inlet holes 6, and air intake Holes 6 communicate with corresponding rectangular holes 17;

The top inner wall of the installation pipe 1 is fixedly connected with the exhaust gas collection assembly connected with the air inlet 6 above. The first connecting pipe 3 on the top inner wall, wherein the top inner wall of the installation pipe 1 is fixedly connected with a support block, the bottom of the support block is fixedly connected with the bottom of the first connecting pipe 3, and the first connecting pipe 3 is supported by the support block , the right end of the first connecting pipe 3 is in sealing and movable contact with the left side of the baffle plate 5, wherein the left side of the baffle plate 5 is glued and fixed with a first sealing rubber, and the left side of the first sealing rubber is provided with two ventilation holes, through which The air hole communicates with the corresponding air intake hole 6, the left side of the first sealing rubber is in movable contact with the right end of the first connecting pipe 3, and the first connecting pipe 3 is connected with the upper air inlet hole 6 of the two air inlet holes 6 The left end of the first connecting pipe 3 communicates with and is fixed with the gas collecting hood 2 that is movably sleeved in the exhaust gas flue pipe 101, and the outer side of the gas collecting hood 2 is in contact with the exhaust gas flue pipe. The inner wall of 101 is in active contact;

The top of the installation pipe 1 is fixedly connected with a purification mechanism communicating with the rectangular hole 17 above, wherein the purification mechanism includes a purification box 8 fixedly connected on the inner wall of the installation pipe 1 top, the top of the purification box 8 is set as an opening, and the purification box 8 A one-way valve 11 with an outlet on the right side is embedded on the left side inner wall of the purification box 8, wherein an installation hole for installing the one-way valve 11 is opened on the right side inner wall of the purification box 8, and the right side of the one-way valve 11 communicates and is fixed with a L-shaped connecting pipe 10, the left side of the one-way valve 11 communicates with the upper rectangular hole 17, the right side of the circular block 4 is in sealing and movable contact with the left side of the purification box 8, and the left side of the purification box 8 is bonded and fixed There is a second sealing rubber, the left side of the second sealing rubber is in movable contact with the right side of the circular block 4, and the sealing movable contact between the circular block 4 and the purification box 8 is realized by the second sealing rubber, wherein the rectangular hole 17 The distance between the front side inner wall and the rear side inner wall is smaller than the distance between the front side and the rear side of the purification box 8, and the distance between the top inner wall and the bottom inner wall of the rectangular hole 17 is smaller than that between the top and the bottom of the purification box 8. The distance is small, and the rectangular hole 17 above can be blocked by the purification box 8. The nitrogen oxide absorption liquid is filled in the purification box 8, and the right side of the purification box 8 is communicated with and fixed with a drain pipe. The threaded sleeve on the drain pipe A blocking cover is provided to replace the nitrogen oxide absorption liquid in the purification box 8 through the drain pipe, and the nitrogen oxide absorption liquid is used to absorb nitrogen oxides in the exhaust gas;

The right side of the circular block 4 is fixedly connected with a rotating rod 9, the top of the right side of the installation pipe 1 is fixedly connected with an L-shaped mounting plate 13, and the bottom of the L-shaped mounting plate 13 is fixedly connected with an output shaft and the right end of the rotating rod 9 is fixedly connected. The brake motor 14 is supported by the L-shaped mounting plate 13. The front side of the brake motor 14 is fixed and electrically connected to the controller 15, and the right side of the L-shaped mounting plate 13 is fixedly connected with the controller. The sound and light alarm device 16 electrically connected to the device 15, the top of the installation pipe 1 communicates with and is fixed with a flow sensor 12, the flow sensor 12 is electrically connected to the controller 15, and the bottom of the flow sensor 12 communicates with the inside of the purification box 8, The utility model can effectively filter and purify the pollutants in the discharged tail gas through the setting of the filter assembly and the purification mechanism, reduce the pollution of the exhaust gas to the environment, and pass the flow rate sensor 12, the sound and light alarm 16, the brake motor 14 and the setting of controller 15, when one of the box-shaped filter screens 7 is clogged, an alarm can be issued in time to remind personnel and the box-shaped filter screen 7 can be switched to use, thereby realizing the purpose of alternately filtering and cleaning the two box-shaped filter screens 7, It makes it unnecessary to stop the discharge of exhaust gas during cleaning, which can effectively save the waiting time for shutdown and improve the efficiency of filtration treatment.

Working principle: when in use, when the exhaust gas in the boiler enters the exhaust flue pipe 101, the exhaust gas enters the upper box-shaped filter screen 7 through the gas collecting hood 2, the first connecting pipe 3 and the upper air inlet 6 in sequence , the exhaust gas passes through the upper box-shaped filter screen 7 and passes through the one-way valve 11 and the L-shaped connecting pipe 10 into the nitrogen oxide absorbing liquid in the purification box 8 in turn, and the upper box-shaped filter screen 7 is opposite to the nitrogen oxides in the exhaust gas. The dust and impurities are filtered and covered inside, and the nitrogen oxide absorbing liquid absorbs and purifies the nitrogen oxides in the exhaust gas. The purified gas gradually floats up and is discharged to the outside through the flow rate sensor 12. By filtering and absorbing and purifying the exhaust gas, It can effectively absorb the pollutants in the tail gas, so that the exhaust gas meets the standard and reduces the pollution to the environment;

The flow rate sensor 12 detects the flow rate of the gas flowing through it. When the flow rate sensor 12 detects that the flow rate is lower than the preset value, it proves that the box-shaped filter screen 7 at the top is clogged, and the flow rate sensor 12 transmits the signal to the control panel. Device 15, controller 15 controls brake motor 14 and sound and light alarm 16 to open, and sound and light alarm 16 sends sound and light alarm to remind personnel, and the output shaft of brake motor 14 drives rotating rod 9 to rotate, and rotating rod 9 drives circular The block 4 rotates, and the circular block 4 drives the baffle plate 5 and the two air inlets 6 above it to rotate, so that the upper air inlet 6 rotates to the bottom, and the lower air inlet 6 rotates to the top, and the circular Block 4 also drives two box-shaped filter screens 7 to rotate, so that the box-shaped filter screen 7 on the top rotates to the bottom, and the box-shaped filter screen 7 on the top rotates to the bottom. The air inlet 6 and the box-shaped filter screen 7 continue to flow. When the flow velocity sensor 12 detects that the flow velocity returns to the preset value, the flow velocity sensor 12 transmits the signal to the controller 15 again, and the controller 15 controls the brake motor 14 and the acousto-optic Alarm 16 is closed;

When the personnel hear the alarm sound, they can directly pull the pull ring located below through the installation pipe 1, and the pull ring below drives the box-shaped filter screen 7 located below to move out from the corresponding rectangular hole 17, and the removed The box-shaped filter screen 7 is cleaned. After cleaning, the box-shaped filter screen 7 can be moved to the rectangular hole 17 to wait for the next use. Control the brake motor 14 and the sound and light alarm 16 to open again by the controller 15, so that the brake motor 14 drives two box-shaped filter screens 7 to rotate again by the rotating rod 9 and the circular block 4 successively, so that the The box-shaped filter screen 7 rotates to the bottom, and the box-shaped filter screen 7 located at the bottom rotates to the top, so as to achieve the purpose of alternately filtering and cleaning the two box-shaped filter screens 7, and it is not necessary to stop exhaust gas discharge during cleaning, which can effectively Save downtime and wait time, improve filtration efficiency.

In this practical description, it should also be noted that, unless otherwise specified and limited, the terms "installation", "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, or It may be detachably connected, or integrally connected, may be mechanically connected, may also be electrically connected, may be directly connected, may also be connected through an intermediary, and may be internal communication between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (7)

1. The utility model provides a boiler tail gas device, including intercommunication and fixing tail gas flue pipe (101) on boiler (100) outlet flue, a serial communication port, movable sleeve is equipped with installation pipe (1) in tail gas flue pipe (101), the right-hand member of installation pipe (1) extends to the right side of tail gas flue pipe (101), the right-hand member thread tightening of installation pipe (1) and tail gas flue pipe (101), the installation pipe (1) internal seal rotates installs filter assembly, fixedly connected with on the top inner wall of installation pipe (1) and filter assembly matched with tail gas collection subassembly, the left side of tail gas collection subassembly extends to the left side of installation pipe (1), the top fixedly connected with of installation pipe (1) and the purification mechanism that filter assembly is linked together, the right side fixedly connected with bull stick (9) of filter assembly, the right side top fixedly connected with L shape mounting panel (13) of installation pipe (1), the bottom fixedly connected with of L shape mounting panel (13) output shaft and the right-hand member fixed connection's of bull stick (9) band-type brake motor (14), the front side fixedly connected with electrical property controller (15) of band-type brake motor (14), the flow rate controller (15) and the acoustic-type transducer (12) of the top fixedly connected with the acoustic-optic sensor (15) and the acoustic-type transducer (12), the bottom of the flow velocity sensor (12) is an air inlet end and is communicated with the purification mechanism.

2. The boiler tail gas device according to claim 1, wherein the filtering component comprises a circular block (4) which is installed in the installation pipe (1) in a sealing and rotating mode, the right side of the circular block (4) is fixedly connected with the left end of a rotating rod (9), two rectangular holes (17) are formed in the right side of the circular block (4), a box-shaped filter screen (7) with the left side arranged for opening is movably sleeved in each rectangular hole (17), a pull ring is fixedly connected to the right side of the box-shaped filter screen (7), a baffle plate (5) is fixedly installed on the left side of the circular block (4), two air inlet holes (6) are formed in the right side of the baffle plate (5), and the air inlet holes (6) are communicated with the corresponding rectangular holes (17).

3. The boiler tail gas device according to claim 2, wherein the tail gas collecting assembly comprises a first connecting pipe (3) fixedly installed on the inner wall of the top of the installation pipe (1), the right end of the first connecting pipe (3) is in sealing movable contact with the left side of the baffle (5), the first connecting pipe (3) is communicated with an upper air inlet (6) of the two air inlets (6) and matched with a lower air inlet (6), and the left end of the first connecting pipe (3) is communicated with and fixed with a gas collecting hood (2) movably sleeved in the tail gas flue pipe (101).

4. The boiler tail gas device according to claim 3, characterized in that the purification mechanism comprises a purification box (8) fixedly connected to the inner wall of the top of the installation pipe (1), the top of the purification box (8) is provided with an opening, a check valve (11) with a right side as an outlet is embedded on the inner wall of the left side of the purification box (8), the right side of the check valve (11) is communicated with and fixed to an L-shaped connecting pipe (10), the left side of the check valve (11) is communicated with a rectangular hole (17) above the check valve, the right side of the circular block (4) is in sealed movable contact with the left side of the purification box (8), the bottom of the flow velocity sensor (12) is communicated with the inside of the purification box (8), the purification box (8) is filled with nitrogen oxide absorption liquid, and the purification box (8) is located above the rotating rod (9).

5. A boiler tail gas unit according to claim 4, characterized in that the distance between the front and rear inner walls of the rectangular hole (17) is smaller than the distance between the front and rear sides of the purification box (8), and the distance between the top and bottom inner walls of the rectangular hole (17) is smaller than the distance between the top and bottom of the purification box (8).

6. A boiler tail gas unit according to claim 2, characterized in that the mounting tube (1) is internally fixed with two large bearings, the inner sides of the large bearings are fixedly connected with the outer sides of the circular blocks (4).

7. The boiler tail gas device according to claim 1, wherein nuts are fixedly connected to the top and the bottom of the installation pipe (1), two thread grooves are formed in the right end of the tail gas flue pipe (101), T-shaped fixing bolts are sleeved in the thread grooves, and the nuts are sleeved on the corresponding T-shaped fixing bolts in a threaded manner.

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