CN213208723U - Device for recovering boiler tail gas - Google Patents

Abstract

The utility model discloses a retrieve boiler tail gas device, including the breathing pipe, the regulation screw thread is seted up to the breathing pipe lateral wall, regulation screw thread lateral wall spiro union pressure regulating device, the outlet duct of pegging graft of pressure regulating device lateral wall rear end, lateral wall fixed mounting check valve behind the outlet duct, lateral wall fixed mounting conveyer pipe behind the check valve, conveyer pipe lateral wall fixed mounting annular backward flow shell, annular backward flow shell lateral wall is fixed connection outlet pipe and inlet tube respectively, lateral wall fixed mounting steam trap behind the conveyer pipe, steam trap goes out water end lateral wall fixed assembly water pump, port lateral wall behind the water pump play water end lateral wall fixed connection inlet tube, realized carrying out blowout pressure to spun steam and adjust, so that different user demands, hot water through making the condensation reflux carries out the thermal protection to steam, the purpose of the heat protection effect in steam is carried has been improved.

Description

Device for recovering boiler tail gas

Technical Field

The utility model relates to a boiler tail gas treatment technical field specifically is a retrieve boiler tail gas device.

Background

The steam boiler refers to an industrial boiler which heats water to certain parameters and produces high-temperature steam, hot water or steam produced in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into the electric energy through the generator, so that the steam of the boiler tail gas can be directly utilized, the energy consumption of factory production equipment is reduced, but the existing boiler tail gas recovery is difficult to recover steam with different pressures according to the use requirements of different devices, so that when weak steam is recovered, the long-distance transportation with less steam amount is easier to cause heat loss, meanwhile, the heat preservation is needed to be carried out on the conveying pipeline in long-distance conveying, the heat preservation is mostly carried out by adopting a passive heat-insulating material, the heat preservation effect is general, the steam utilization rate is reduced, and therefore the boiler tail gas recycling device is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a retrieve boiler tail gas device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a retrieve boiler tail gas device, includes the breathing pipe, the regulation screw thread is seted up to the breathing pipe lateral wall, regulation screw thread lateral wall spiro union pressure regulating device, the outlet duct is pegged graft to pressure regulating device lateral wall rear end, lateral wall fixed mounting check valve behind the outlet duct, lateral wall fixed mounting conveyer pipe behind the check valve, conveyer pipe lateral wall fixed mounting annular backward flow shell, annular backward flow shell lateral wall is fixed connection outlet pipe and inlet tube respectively, lateral wall fixed mounting steam trap behind the conveyer pipe, the steam trap goes out water end lateral wall fixed assembly water pump, port lateral wall behind the water pump play water end lateral wall fixed connection inlet tube.

Preferably, the pressure adjusting device comprises an adjusting nut, the rear side wall of the adjusting nut rotates to connect the spring, the side wall of the rear end of the spring is fixedly provided with a movable plug, the inner wall of the adjusting nut is in threaded connection with an adjusting threaded side wall, the outer side wall of the movable plug is connected with the inner wall of an air outlet pipe in a splicing manner, the side wall of the movable plug is provided with a vent hole, the inner wall of the movable plug is fixedly provided with a sealing block, the side wall of the sealing block is attached to the inner wall of the air inlet pipe, and the.

Preferably, the outer side wall of the adjusting nut is fixedly provided with a swivel, and the side wall of the swivel is fixedly provided with a lug.

Preferably, the front end of the side wall of the sealing block is provided with a round angle.

Preferably, the sealing ring is fixedly installed at the front end of the inner wall of the air outlet pipe, and the inner wall of the sealing ring is attached to the outer side wall of the movable plug.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a retrieve boiler tail gas device, pressure regulating device and annular backward flow shell structure have, regulation through pressure regulating device, make the outlet duct can derive steam under the different pressure state, make steam every time spun pressure can both be the same with the expectation of debugging, make steam output even, make the hot water that has the steam trap condensation under the drive of water pump through annular backward flow shell, enter into annular backward flow shell in, make the hot water that condenses play extra heat protection layer to the steam of carrying, it adjusts to have realized carrying out blowout pressure to spun steam, so that different user demands, hot water through making the condensation backward flow carries out heat protection to steam, the purpose of the heat protection effect in steam transport has been improved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the annular backflow shell of the present invention after being partially cut and its connection structure;

FIG. 3 is a schematic view of the check valve and its connection structure;

FIG. 4 is a schematic view of the spring and the movable plug after being partially cut and the connection structure thereof;

fig. 5 is the schematic view of the adjusting nut, the movable plug and the sealing block of the present invention after partially sectioning and connecting structure thereof.

In the figure: 1 air suction pipe, 101 adjusting screw thread, 2 pressure adjusting device, 201 adjusting nut, 202 spring, 203 movable plug, 204 vent hole, 205 sealing block, 3 air outlet pipe, 4 one-way valve, 5 delivery pipe, 6 annular backflow shell, 7 water outlet pipe, 8 water inlet pipe, 9 steam trap, 10 water pump, 11 swivel, 1101 convex block, 12 round angle, 13 sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a device for recovering boiler tail gas comprises an air suction pipe 1, an adjusting thread 101 is arranged on the outer side wall of the air suction pipe 1, a pressure adjusting device 2 is in threaded connection with the side wall of the adjusting thread 101, an air outlet pipe 3 is inserted at the rear end of the side wall of the pressure adjusting device 2, a check valve 4 is fixedly installed on the rear side wall of the air outlet pipe 3, a conveying pipe 5 is fixedly installed on the rear side wall of the check valve 4, an annular backflow shell 6 is fixedly installed on the outer side wall of the conveying pipe 5, the outer side wall of the annular backflow shell 6 is respectively and fixedly connected with an air outlet pipe 7 and an air inlet pipe 8, a steam trap 9 is fixedly installed on the rear side wall of the conveying pipe 5, a water outlet side wall of the water trap 9 is fixedly assembled with a water pump 10, the water outlet side wall of the water pump 10 is fixedly connected with the rear port side wall of, the rear end of conveyer pipe does not touch annular backward flow shell department lateral wall, but the mode of adoption trompil fixed connection outside steam uses the inlet end of equipment and the end of giving vent to anger, and be located the inlet end and give vent to anger the conveyer pipe internal division between the end, make steam pass through the breathing pipe, the outlet duct, the check valve, the conveyer pipe, gas equipment and conveyer pipe internal flow, and this adoong thermal insulation material of structure that steam flowed through carries out thermal barrier coating and handles, then at the steam trap, a water pump, the inlet tube, annular backward flow shell, carry with hydrothermal form in the outlet pipe, the external power supply of water pump, the external boiler inlet port lateral wall of outlet pipe.

Specifically, the pressure adjusting device comprises an adjusting nut 201, the rear side wall of the adjusting nut 201 is rotatably connected with a spring 202, a movable plug 203 is fixedly installed on the rear side wall of the spring 202, the inner wall of the adjusting nut 201 is in threaded connection with the side wall of an adjusting thread 101, the outer side wall of the movable plug 203 is inserted into the inner wall of an air outlet pipe 3, a vent hole 204 is formed in the side wall of the movable plug 203, a sealing block 205 is fixedly installed on the inner wall of the movable plug 203, the side wall of the sealing block 205 is attached to the inner wall of an air suction pipe 1, the inner wall of the movable plug 203 is attached to the rear end of the outer side wall of the air suction pipe 1, the side wall of the movable plug, the side wall of the sealing block and the inner wall of the air suction pipe are all subjected to polishing process smoothing, the movable plug and the sealing block are closely attached to the air suction pipe to reduce steam, the spring and the movable plug are adjusted in front and back positions, so that steam in the air suction pipe pushes the sealing block to cause different lengths of the spring in a pulling mode, the selection of the sprayed steam pressure is changed, namely the steam can push the sealing block, and the required steam pressure of a channel is formed in the outlet of the air suction pipe, the vent hole and the air outlet pipe.

Specifically, the outer side wall of the adjusting nut 201 is fixedly provided with the rotating ring 11, the side wall of the rotating ring 11 is fixedly provided with the lug 1101, and the rotating ring and the lug arranged on the outer side wall can facilitate the rotation of the adjusting nut by the hand of a person.

Specifically, the fillet 12 is seted up to sealed piece 205 lateral wall front end, and the fillet that sets up is ninety degrees fillets, can make the structure contact of avoiding the edge cause the interference at sealed piece front end lateral wall butt joint suction pipe inner wall rear end, and it is inside easier to make sealed piece enter into the suction pipe repeatedly.

Particularly, 3 inner wall front ends of outlet duct fixed mounting sealing rings 13, sealing ring 13 inner wall laminating activity stopper 203 lateral wall can strengthen the leakproofness of outlet duct inner wall front end and volume activity stopper lateral wall through the sealing ring, reduce that steam is excessive.

The working principle is as follows: when the utility model is used, after the device is assembled, when the steam in the boiler is in the air suction pipe 1, due to the increase of the pressure, the steam pushes the sealing block 205 to move and stretches the spring 202 until the vent hole 204 of the movable plug 203 is placed in the outlet pipe 3, the air suction pipe 1, the movable plug 203 and the air outlet pipe 3 form a passage, steam can flow towards the inside of the one-way valve 4 and the conveying pipe 5 along with the outward flow of the steam, the pressure of the steam is reduced for the second time, the spring 202 drives the sealing block 205 to seal the air suction pipe 1, after the steam in the conveying pipe 5 is used by the gas-using equipment, flows into the rear end of the interior of the conveying pipe 5 again, is condensed into hot water through the steam trap 9, is pumped into the water inlet pipe 8, the annular backflow shell 6 and the water outlet pipe 7 by the water pump 10, finally flows into the boiler to form circulation, the conveying pipe 5 contacted with the inner wall of the annular backflow shell 6 can be protected by heat when flowing inside the annular backflow shell 6.

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

Claims (5)

1. The utility model provides a retrieve boiler tail gas device, includes breathing pipe (1), its characterized in that: adjusting screw thread (101) is seted up to breathing pipe (1) lateral wall, adjusting screw thread (101) lateral wall spiro union pressure adjusting device (2), outlet duct (3) are pegged graft to pressure adjusting device (2) lateral wall rear end, outlet duct (3) rear side wall fixed mounting check valve (4), check valve (4) rear side wall fixed mounting conveyer pipe (5), conveyer pipe (5) lateral wall fixed mounting annular backward flow shell (6), annular backward flow shell (6) lateral wall is fixed connection outlet pipe (7) and inlet tube (8) respectively, conveyer pipe (5) rear side wall fixed mounting steam trap (9), steam trap (9) water outlet end lateral wall fixed mounting water pump (10), water pump (10) water outlet end lateral wall fixed connection inlet tube (8) rear port lateral wall.

2. A recovery boiler tail gas unit according to claim 1, characterized in that: pressure adjusting device includes adjusting nut (201), adjusting nut (201) rear side wall rotates coupling spring (202), spring (202) rear end lateral wall fixed mounting activity stopper (203), adjusting nut (201) inner wall spiro union adjusting thread (101) lateral wall, activity stopper (203) lateral wall grafting outlet duct (3) inner wall, air vent (204) are seted up to activity stopper (203) lateral wall, activity stopper (203) inner wall fixed mounting sealing block (205), sealing block (205) lateral wall laminating breathing pipe (1) inner wall, activity stopper (203) inner wall laminating breathing pipe (1) lateral wall rear end.

3. A recovery boiler tail gas unit according to claim 2, characterized in that: the outer side wall of the adjusting nut (201) is fixedly provided with a rotating ring (11), and the side wall of the rotating ring (11) is fixedly provided with a convex block (1101).

4. A recovery boiler tail gas unit according to claim 2, characterized in that: the front end of the side wall of the sealing block (205) is provided with a round angle (12).

5. A recovery boiler tail gas unit according to claim 2, characterized in that: and a sealing ring (13) is fixedly mounted at the front end of the inner wall of the air outlet pipe (3), and the inner wall of the sealing ring (13) is attached to the outer side wall of the movable plug (203).

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