CN205299532U - Hanging stove gas ejector - Google Patents

Abstract

The utility model discloses a hanging stove gas ejector, gas ejector include that the gas is drawn and penetrate the seat, and the gas is drawn the outside of penetrating the seat and is equipped with the gas inlet port, openly is equipped with a through -hole, and inside is equipped with around the circumference gas circulation looping pit of through -hole, and gas circulation looping pit communicates with each other with the gas inlet port, the through -hole inside wall be equipped with the gas fumarole, the gas fumarole communicates with each other with gas circulation looping pit, the gas draw the front of penetrating the seat and be fixed with induced air cover, be equipped with a fresh air inlet in the middle of front of induced air cover, the back is equipped with the induced duct, induced duct and fresh air inlet communicate with each other, the induced duct occupy the centre of through -hole, this product of this product simple structure, the practicality is strong, and is with low costs, easy to assemble, maintenance, the velocity of liquid assets of air can be accelerated to induced air cover, and the quickening of circulation of air speed can effectually prevent that the hot gas flow of burning from flowing backward the intake duct, prevents to lead to the furnace body noise because the inflation gas of burning flows backward.

Description

Wall-hung boiler combustion gas injector

Technical field

This utility model relates to gas circulation device, is specifically related to wall-hung boiler combustion gas injector.

Background technology

1, at present, the combustion heat exchanger of burnt gas wall hanging furnace is that reversely hung Yong arranges burning, i.e. burning base portion discharge flue gas above combustion heat exchanger, its exhaust opening is flat and little, due to combustion heat exchanger combustor up, during its burning, flare and cigarette are up walked, but time, the exhaust opening of its combustion heat exchanger is located at bottom, its fume exhausting type can only be walked from top to bottom, in calorifics principle, steam and hot cigarette are up walked, form contrary fume exhausting type, combustor is to seal, its combustion gas enters combustor from the top of combustor, burn at combustion chamber ignition, firepower excessively concentrates on combustion chambers burn, combustion gas can produce substantial amounts of swelling heat air-flow during combustor moment burns, the exhaust opening of combustion heat exchanger is arranged on bottom and exhaust opening is too small, a large amount of steam that moment produces cannot abrupt release/discharge, steam moment flows backwards on the inlet channel of combustion gas, the steam moment refluence work of repetition can be formed at this, and then make combustion heat exchanger and the vibration of whole burnt gas wall hanging furnace big, noise is high, fireball can be formed during the combustor moment burning of combustion heat exchanger, the combustion gas of part cannot fully be burnt moment, cause hydrogen, carbon monoxide, methane emission big, cause atmospheric pollution, hypomere firepower is not enough, heat is little, underheat, forms the shortcomings such as current thermal conversion rate is low of combustion heat exchanger hypomere. 2, the mixing of the combustion gas of the full premix technology of existing combustion gas and air, it is entirely employing Venturi tube supply fuel hybrid technology, but owing to Venturi tube volume is big, it is arranged in blower fan mouth and occupies the air inlet area of blower fan, cause that blower fan intake efficiency declines, premixing effect is bad, gaseous mixture overrich, inefficiency.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of combustion gas and mixes with air more uniform, air inlet is made to form torrent (breathing heavily stream), accelerate mixing gas velocity of liquid assets, it is possible to reduce the wall-hung boiler combustion gas injector of the combustion vibration noise because of combustion heat exchanger.

The scheme solving above-mentioned technical problem is:

Wall-hung boiler combustion gas injector, combustion gas injector (1) includes combustion gas injection seat (10), the outside of combustion gas injection seat (10) is provided with gas inlet hole (11), front is provided with a through hole (12), inside is provided with the circumferential gas circulation looping pit (121) around through hole (12), and gas circulation looping pit (121) communicates with gas inlet hole (11);Described through hole (12) medial wall is provided with gas injection pore (122), and gas injection pore (122) communicates with gas circulation looping pit (121); The front of described combustion gas injection seat (10) is fixed with a blower cover (101), a fresh air inlet (1011) it is provided with in the middle of the front of blower cover (101), the back side is provided with induced duct (1012), induced duct (1012) communicates with fresh air inlet (1011), and induced duct (1012) occupy the centre of through hole (12).

Further: air exhauster (13) is fixed at described combustion gas injection seat (10) rear, and the air inlet of air exhauster (13) is corresponding with through hole (12); The housing of described air exhauster (13) connects blast switch (132) by airduct (131); Described induced duct (1012) occupy in the middle of air exhauster (13) wind wheel in out position.

This utility model energy-saving environment-protecting type burnt gas wall hanging furnace combustion system have the beneficial effect that this product structure is simple, practical, cost is low, facilitating installation, maintenance, it is possible to reduce because of the combustion vibration noise of combustion heat exchanger, after solving burning, steam expands and flows backwards, solve combustion heat exchanger rear underheat, the firepower produced when solving burning excessively concentrates on combustion chambers burn, solves toxic emission temperature too high, solves the advantages such as hot rate of rotation is too low; Meanwhile, this combustion gas full premix combustion structure is owing to having efficiency of combustion height, and air-fuel ration control is accurate, and toxic emission is few, has become as the main flow of fuel gas buring exploration project; The advantages such as simultaneously this product intake is big, air inlet uniformity, quiet, wind-force resistivity is little, low, the wide accommodation of simple in construction, cost; Blower cover can accelerate the velocity of liquid assets of air, the quickening of air passage rates, it is possible to effectively prevents the thermal current of burning from pouring in down a chimney air intake duct, it is prevented that causes body of heater noise owing to the expanding gas of burning pours in down a chimney.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of this utility model product combustion gas injection seat;

Fig. 2 is the axonometric chart of this utility model product blower cover;

Fig. 3 is the sectional view of this utility model product combustion gas injection seat;

Fig. 4 is the sectional view of this utility model product combustion gas injection seat;

Fig. 5 is the axonometric chart that this utility model product combustion gas injection seat is combined with air exhauster;

Fig. 6 is the schematic diagram of this utility model product;

Fig. 7 is the axonometric chart of this utility model product smoke extractor;

Fig. 8 is the sectional view of this utility model product smoke extractor;

Fig. 9 is the sectional view of this utility model product combustion heat exchanger.

Detailed description of the invention

As Figure 1-Figure 5: wall-hung boiler combustion gas injector, combustion gas injector 1 includes combustion gas injection seat 10, the outside of combustion gas injection seat 10 is provided with gas inlet hole 11, front is provided with a through hole 12, inside is provided with the circumferential gas circulation looping pit 121 around through hole 12, and gas circulation looping pit 121 communicates with gas inlet hole 11; Described through hole 12 medial wall is provided with gas injection pore 122, and gas injection pore 122 communicates with gas circulation looping pit 121; The front of described combustion gas injection seat 10 is fixed with a blower cover 101, is provided with a fresh air inlet 1011 in the middle of the front of blower cover 101, and the back side is provided with induced duct 1012, and induced duct 1012 communicates with fresh air inlet 1011, and induced duct 1012 occupy the centre of through hole 12.

Further: air exhauster 13 is fixed at described combustion gas injection seat 10 rear, and the air inlet of air exhauster 13 is corresponding with through hole 12; The housing of described air exhauster 13 connects wind pressure sensor 132 by airduct 131; Described induced duct 1012 occupy in the middle of air exhauster 13 wind wheel in out position.

Blower cover 101 can accelerate the velocity of liquid assets of air, the quickening of air passage rates, it is possible to effectively prevents the thermal current of burning from pouring in down a chimney air intake duct, it is prevented that causes body of heater noise owing to the expanding gas of burning pours in down a chimney.

Such as:

As shown in Fig. 1-Fig. 9: a kind of energy-saving environment-protecting type burnt gas wall hanging furnace combustion system applying wall-hung boiler combustion gas injector, combustion system includes combustion gas injector 1, combustion gas injector 1 is connected to inversion type combustion heat exchanger 2, and inversion type combustion heat exchanger 2 is connected to smoke extractor 3; Described combustion gas injector 1 includes combustion gas injection seat 10, the outside of combustion gas injection seat 10 is provided with gas inlet hole 11, front is provided with a through hole 12, and inside is provided with the circumferential gas circulation looping pit 121 around through hole 12, and gas circulation looping pit 121 communicates with gas inlet hole 11; Described through hole 12 medial wall is provided with gas injection pore 122, and gas injection pore 122 communicates with gas circulation looping pit 121; Air exhauster 13 is fixed at described combustion gas injection seat 10 rear, and the air inlet of air exhauster 13 is corresponding with through hole 12 to communicate; The top of described inversion type combustion heat exchanger 2 is provided with air inlet 21, and air inlet 21 is stamped a lid 22, and lid 22 is extended with one and connects pipe 23 of breathing hard, and connects pipe 23 of breathing hard and docks with the air outlet of air exhauster 13; Described inversion type combustion heat exchanger 2 epimere is combustor 24, and hypomere is for changing/heat recipient passage 25, and bottom is exhaust opening 26; Described combustor 24 is provided with ignition electrode 241; Described inversion type combustion heat exchanger 2 is provided with water inlet 27 and outlet 28; Described smoke extractor 3 includes one for discharging the smoke discharging pipe body 31 of conveying smoke, and one end of smoke discharging pipe body 31 is smoke inlet 311, and the other end is outlet flue 312; Described smoke discharging pipe body 31 is provided with extraction fan 32; Described smoke discharging pipe body 31 is provided with condensate drain outlet 313.

Further: described smoke discharging pipe body 31 includes smoke discharging pipe body leading portion 301 and smoke discharging pipe body back segment 302, between described smoke discharging pipe body leading portion 301 and smoke discharging pipe body back segment 302, extraction fan 32 is installed, described smoke discharging pipe body leading portion 301 is provided with condensate drain outlet 313.

Further: described smoke discharging pipe body 31 includes the smoke discharging pipe body leading portion 301 of horizontally set and longitudinally disposed smoke discharging pipe body back segment 302, the joint between the smoke discharging pipe body leading portion 301 and longitudinally disposed smoke discharging pipe body back segment 302 of described horizontally set is provided with extraction fan 32.

Further: described condensate drain outlet 313 is connected to condensate water drainage arrangement 14, condensate water drainage arrangement 14 includes a condensed water and receives box 141, condensed water receives the inner bottom part of box 141 and is provided with the interior high-order drainage overflow pipe section 1410 protruded that extends internally, outer bottom is provided with the outer draining pipeline section 1411 of corresponding extension, and outer draining pipeline section 1411 communicates with overflow pipeline section 1410 external draining; The periphery of described overflow pipeline section 1410 is the aqua storage tank 1412 that condensed water receives box 141 inner bottom part; The top overfall of described overflow pipeline section 1410 is provided with float 1413, and float 1413 top is pressed on the overfall of overflow pipeline section 1410; Receive the aqua storage tank 1412 of box 141 when condensed water flows condensed water from smoke discharging pipe body 1, after the water of aqua storage tank 1412 is full, being hiked up by float 1413, the water then overflowed enters overflow pipeline section 1410 from the gap of overflow pipeline section 1410, outer draining pipeline section 1411 is externally drained.

Further: the housing of described air exhauster 13 connects blast switch 132 by airduct 131.

Further: described combustor 24 bottom is fixed with for detecting the oxygen level sensor 242 after burning.

Further: the front of described combustion gas injection seat 10 is fixed with a blower cover 101, a fresh air inlet 1011 it is provided with in the middle of the front of blower cover 101, the back side is provided with induced duct 1012, induced duct 1012 communicates with fresh air inlet 1011, induced duct 1012 occupy the centre of through hole 12, also occupy in the middle of air exhauster 13 wind wheel in out position.

Further: described through hole 12 is air intake through hole or mixes gas via-hole or combustion gas through hole.

Work process example: when combustion heat exchanger 2 to carry out combustion heating water, water valve is opened and is made current enter from water inlet 27, wind pressure sensor 132, air exhauster 13 starts, gas valve is opened, combustion gas is made to enter gas circulation looping pit 121 from gas inlet hole 11, it is ejected on through hole 12 by gas injection pore 122, blower fan inner chamber is sucked by air exhauster 13, simultaneously also by fresh air inlet 1011, extraneous wind is sucked blower fan inner chamber by induced duct 1012, by the stirring of air exhauster 13 wind wheel by air and combustion gas mixing, by connecing pipe 23 of breathing hard, the gas of mixing is sent into combustor 24, combustion heat exchanger 2 is heated by ignition electrode 241 ignition, rear after burning and smoke are toward walking, through changing/heat recipient passage 25, then cigarette/carbon monoxide/waste gas is discharged at the exhaust opening 26 of bottom, cigarette/carbon monoxide/waste gas enters smoke discharging pipe body 31, by the directed externally discharge of smoke discharging pipe body 31, the condensed water of combustion heat exchanger 2 flows into smoke discharging pipe body 31 by exhaust opening 26, then flow into condensed water from the condensate drain outlet 313 being arranged on smoke discharging pipe body 31 and receive box 141, receive box 141 by condensed water externally to discharge again, hot water after combustion heating is externally supplied from outlet 28, when wind pressure sensor 132 detects that the pneumatic effect of external environment causes that body of heater airflow direction recharges stream or exhaust efficiency decline, start extraction fan 32, make body of heater air-flow and chamber pressure stable by the operating of extraction fan 32, improve the wind loading rating of body of heater, ensure the operation flameholding of body of heater, blower cover 101 is arranged in the front end of injector, the velocity of liquid assets of air can be accelerated, the quickening of air passage rates, it is possible to effectively prevent the thermal current of burning from pouring in down a chimney air intake duct, it is prevented that cause body of heater noise owing to the expanding gas of burning pours in down a chimney.

Claims (2)

1. wall-hung boiler combustion gas injector, it is characterized in that: combustion gas injector (1) includes combustion gas injection seat (10), the outside of combustion gas injection seat (10) is provided with gas inlet hole (11), front is provided with a through hole (12), inside is provided with the circumferential gas circulation looping pit (121) around through hole (12), and gas circulation looping pit (121) communicates with gas inlet hole (11); Described through hole (12) medial wall is provided with gas injection pore (122), and gas injection pore (122) communicates with gas circulation looping pit (121); The front of described combustion gas injection seat (10) is fixed with a blower cover (101), a fresh air inlet (1011) it is provided with in the middle of the front of blower cover (101), the back side is provided with induced duct (1012), induced duct (1012) communicates with fresh air inlet (1011), and induced duct (1012) occupy the centre of through hole (12).

2. wall-hung boiler combustion gas injector according to claim 1, it is characterised in that: air exhauster (13) is fixed at described combustion gas injection seat (10) rear, and the air inlet of air exhauster (13) is corresponding with through hole (12); The housing of described air exhauster (13) connects blast switch (132) by airduct (131);Described induced duct (1012) occupy in the middle of air exhauster (13) wind wheel in out position.