CN214469353U

CN214469353U - Gas module furnace with inlet preheating and multiple condensation

Info

Publication number: CN214469353U
Application number: CN202023277184.6U
Authority: CN
Inventors: 于治; 李先富
Original assignee: Hunan Changneng Thermal Engineering Technology Co ltd
Current assignee: Hunan Changneng Thermal Engineering Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-22
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a gas module stove of preheating and multiple condensation admits air. The gas module furnace for inlet preheating and multiple condensation comprises a smoke collecting hood, a smoke outlet arranged on the smoke collecting hood, one or more gas module furnaces connected with the smoke collecting hood and an inlet isolation plate; the gas module furnace keeps a certain gap between the smoke collecting hoods to form an air inlet channel, and the air inlet isolation plate is arranged at the outer side of the air inlet channel and the outer side of the air inlet of the gas module furnace to form a sealed connecting channel between the air inlet channel and the air inlet channel. The utility model provides a gas module stove of preheating and multiple condensation admits air has solved the overheated technical problem of insufficient, collection petticoat pipe of prior art's gas module stove waste heat utilization.

Description

Gas module furnace with inlet preheating and multiple condensation

Technical Field

The utility model relates to a gas module stove field, concretely relates to gas module stove of preheating and multiple condensation admits air.

Background

The gas condensation module furnace is a centralized heating device, has the characteristics of energy conservation, environmental protection and the like, and is widely applied to heating and hot water of various medium and large-sized projects. The existing gas module furnace is mainly composed of a plurality of gas modules, and the air outlet of each gas module is connected with a fume collecting hood. When the module stove during operation, the burning produces the high temperature flue gas and still has 160~200 ℃ high temperature behind main heat exchanger, consequently generally still is equipped with the condensation structure, and the high temperature flue gas just discharges in the atmosphere after retrieving the flue gas waste heat through main heat exchanger, rethread condensation heat exchanger earlier.

However, the fume collecting hood realizes heat exchange only at the position where the condensing heat exchanger is arranged, so that the fume collecting hood has a recovery effect, the heat of the area before the fume leaves the fuel gas module and reaches the condensing heat exchanger cannot be fully utilized, and the heat can also cause the fume collecting hood to be overheated.

SUMMERY OF THE UTILITY MODEL

For solving the overheated technical problem of insufficient, collection petticoat pipe of gas module stove waste heat utilization of prior art, the utility model provides a solve the gas module stove of preheating and multiple condensation of admitting air of above-mentioned problem.

A gas module furnace for inlet preheating and multiple condensation comprises a fume collecting hood, a smoke outlet arranged on the fume collecting hood, one or more gas module furnaces connected with the fume collecting hood, and an inlet isolation plate; the gas module furnace keeps a certain gap between the smoke collecting hoods to form an air inlet channel, and the air inlet isolation plate is arranged at the outer side of the air inlet channel and the outer side of the air inlet of the gas module furnace to form a sealed connecting channel between the air inlet channel and the air inlet channel.

In a preferred embodiment of the gas module furnace for preheating inlet air and multiple condensation provided by the present invention, the fume collecting hood is a hollow cylinder with the exhaust port on one end surface, the other end surface opposite to the exhaust port is provided with a water outlet, and a first flow equalizing pore plate, one or more sets of first heat exchangers, and one or more smoke inlets are sequentially arranged inside the fume collecting hood from a position close to the exhaust port; the smoke inlet penetrates through the side faces of the smoke collecting cover adjacent to the smoke outlet.

In a preferred embodiment of the gas module furnace for preheating inlet air and multiple condensation provided by the present invention, each of the inlet smoke openings is provided with a back-flow prevention cover, the back-flow prevention cover is a one-way structure for airflow which can only be passed through the outside of the smoke collection hood to flow in the smoke collection hood.

The utility model provides a gas module stove that advances air and preheat and multiple condensation in the preferred embodiment, gas module stove includes the furnace body, locates in proper order air inlet, combustor, second heat exchanger, the second orifice plate that flow equalizes, fan, gas vent in the furnace body.

In a preferred embodiment of the present invention, the exhaust port is connected to the smoke inlet, the air inlet faces the direction of the water outlet, and the air inlet isolation plate is connected to the smoke collecting hood and the furnace body.

In a preferred embodiment of the gas module furnace with preheating inlet air and multiple condensation, the inlet isolation board comprises a plurality of plate-shaped structures, and is disposed between the furnace body and the fume collecting hood to form an inlet hood covering the inlet air and the inlet channel.

Compared with the prior art, the utility model provides a gas module stove that advances air preheating and multiple condensation changes the direction of admitting air into following earlier the outer wall of collection petticoat pipe flows, reentrants to the gas module stove in. The circulating inflow of the cold air can take away the heat on the surface of the smoke collecting hood, reduce the surface temperature of the smoke collecting hood and avoid overheating; and the part of heat can preheat cold air participating in combustion, so that the combustion efficiency is improved.

The gas module furnace for inlet gas preheating and multiple condensation comprises a double flow equalizing pore plate, so that the temperature balance in a combustion chamber can be better ensured; the better combustion effect can be realized through adjustment between the rectifying plates facing different installation combinations and environments, and a flue fan is not needed.

The gas module furnace for inlet preheating and multiple condensation comprises three groups of heat exchangers, so that the temperature of discharged smoke can be ensured to be lower, and the heat efficiency of the machine is improved.

Drawings

FIG. 1 is a perspective view of a gas fired modular furnace with inlet preheating and multiple condensation;

fig. 2 is a sectional view of fig. 1.

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.

Please refer to fig. 1 and fig. 2, which are a perspective view and a cross-sectional view of the gas module furnace 1 for inlet preheating and multiple condensation according to the present invention. The gas module furnace 1 for intake preheating and multiple condensation comprises a fume collecting hood 2, two gas module furnaces 3 and two intake hoods 4.

The collection petticoat pipe 2 is square tubular structure, and its top is equipped with circular shape exhaust port 21, inside the below of exhaust port 21 is equipped with first orifice plate 22, two sets of condensation heat exchanger 23 that flow equalize in proper order, the side one left right side in the below of condensation heat exchanger 23 is equipped with one respectively and advances the mouth 24, and the bottom is equipped with outlet 25. An anti-return hood 26 is arranged in the smoke inlet 24 to ensure that the airflow can only unidirectionally flow from the gas module furnace 3 to the smoke collecting hood 2.

The gas module furnace 3 comprises a furnace body 31, and an air inlet 32, a burner 33, a combustion heat exchanger 34, a second flow equalizing pore plate 35, a fan 36 and an exhaust port 37 which are arranged in the furnace body 31 from bottom to top in sequence. A certain space is maintained between the burner 33 and the combustion heat exchanger 34 as a combustion chamber. The fan 36 is a centrifugal fan so that the exhaust port 37 is oriented at an angle perpendicular to the direction of airflow and is in abutment with the smoke inlet 24.

The air inlet hood 4 comprises three air inlet isolation plates 41, wherein two air inlet isolation plates are simultaneously connected with the outer walls of the furnace body 31 and the smoke collecting hood 2, the other air inlet isolation plate is arranged on the outer side of the furnace body 31 far away from the smoke collecting hood 2 and is connected with the two air inlet isolation plates, and the last air inlet isolation plate is arranged below the air inlet 32 and is simultaneously connected with the three air inlet isolation plates.

A 15mm gap is kept between the furnace body 31 and the smoke collecting hood 2, so that the gap between the furnace body 31 and the smoke collecting hood 2 is matched with the two air inlet partition plates 41 which are simultaneously connected with the outer walls of the furnace body 31 and the smoke collecting hood 2 to form an air inlet channel. The remaining intake partition plate 41 cooperates with the intake passage to form a connecting passage for introducing the airflow into the intake port 32. And a heat insulation layer is arranged at the position where no airflow flows through the outer wall of the furnace body 31.

In specific implementation, under the action of the fan 36, air is supplied to the air inlet channel, the connecting channel and the air inlet 32 to the combustor 33 for combustion, so as to form high-temperature flue gas. The high-temperature flue gas sequentially passes through the combustion heat exchanger 34, the second flow equalizing pore plate 35, the fan 36, the exhaust port 37, the smoke inlet 24, the condensation heat exchanger 23 and the first flow equalizing pore plate 22, and is finally discharged from the smoke outlet 21.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The utility model provides a gas module stove that advances air preheating and multiple condensation, includes the collection petticoat pipe, locates the exhaust port of collection petticoat pipe, with one or more gas module stove that the collection petticoat pipe is connected, its characterized in that: the air inlet isolation plate is also included; the gas module furnace keeps a certain gap between the smoke collecting hoods to form an air inlet channel, and the air inlet isolation plate is arranged at the outer side of the air inlet channel and the outer side of the air inlet of the gas module furnace to form a sealed connecting channel between the air inlet channel and the air inlet channel.

2. The inlet air preheating and multiple condensing gas module furnace of claim 1, wherein: the smoke collecting hood is a hollow cylinder body, one end face of the smoke collecting hood is provided with the smoke outlet, the other end face opposite to the smoke outlet is provided with a water outlet, and a first flow equalizing pore plate, one or more groups of first heat exchangers and one or more smoke inlets are sequentially arranged in the smoke collecting hood from the position close to the smoke outlet; the smoke inlet penetrates through the side faces of the smoke collecting cover adjacent to the smoke outlet.

3. The inlet air preheating and multiple condensing gas module furnace of claim 2, wherein: each smoke inlet is internally provided with an anti-return hood which is a one-way structure that airflow can only flow from the outside of the smoke collection hood to the inside of the smoke collection hood.

4. The inlet air preheating and multiple condensing gas module furnace of claim 2 or 3, wherein: the gas module furnace comprises a furnace body, and an air inlet, a burner, a second heat exchanger, a second flow equalizing pore plate, a fan and an exhaust port which are arranged in the furnace body in sequence.

5. The inlet air preheating and multiple condensing gas module furnace of claim 4, wherein: the gas vent with advance the mouth of cigarette and connect, the air inlet orientation the direction of outlet, the division board that admits air with collection petticoat pipe with the furnace body is connected.

6. The inlet air preheating and multiple condensing gas module furnace of claim 5, wherein: the air inlet isolation plate comprises a plurality of plate-shaped structures and is arranged between the furnace body and the smoke collecting hood to form an air inlet hood covering the air inlet and the air inlet channel.