CN213273221U

CN213273221U - Novel gas condensation module furnace structure

Info

Publication number: CN213273221U
Application number: CN202021784693.5U
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: 2020-08-25
Filing date: 2020-08-25
Publication date: 2021-05-25
Anticipated expiration: 2030-08-25

Abstract

The utility model provides a novel gas condensation module stove structure. Novel gas condensation module stove structure including collection petticoat pipe, exhaust port with the gas module stove of collection petticoat pipe intercommunication, its characterized in that: the smoke collecting cover is a hollow cylinder with one open end, a flow equalizing pore plate, one or more groups of fin heat exchange tubes and one or more smoke inlets are sequentially arranged in the smoke collecting cover from the open end, and a water outlet is arranged on the end face opposite to the open end. The utility model provides a novel gas condensation module stove structure has solved the gas module stove flue gas of prior art disorderly, the water course is in a jumble, and fan, water pump load are big to and inconvenient technical problem is collected to the comdenstion water.

Description

Novel gas condensation module furnace structure

Technical Field

The utility model relates to a gas module stove field, concretely relates to gas condensation module stove.

Background

The gas condensation module furnace is a novel 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 large projects. The existing gas module furnace body mainly comprises a plurality of gas modules, and the air outlet of each gas module is connected with a fume collecting hood. When the module furnace works, high-temperature flue gas generated by combustion still has a high temperature of 160-200 ℃ after passing through the main heat exchanger, so a condensation structure is generally arranged, and the high-temperature flue gas firstly passes through the main heat exchanger and then passes through the condensation heat exchanger, so that the waste heat of the flue gas is recovered and then is discharged into the atmosphere.

But the existing waste heat recovery structure has certain problems: the common corrugated pipe of the heat exchanger has no fins, has small heat exchange area, can be bent greatly for achieving the purpose of sufficient heat exchange, and is easy to cause disorder and disorder of an internal flue gas channel; the thickness of the corrugated pipe is generally 0.2-0.3mm, and the service life of the corrugated pipe after bending is not high under the corrosion of acid condensate water; because the inner space of the fume collecting hood is narrow, the fume channel must be long to achieve the condensation effect, the back pressure of the fan is influenced, and the load of the fan is increased; the water inlet usually passes through the corrugated pipe heat exchanger and then the main heat exchanger to reach the water outlet, and the water path is complex and disordered; the mode of the water paths in series connection is limited by the pipe diameter, so that the problems of high temperature rise and small adjusting range exist, scaling is easy to occur in the pipeline, the pipe loss is high, and the load of the water pump is increased; in addition, the structure of the existing gas module furnace is generally the structure that each gas module has a condensed water outlet, so that the collection of acid condensed water is inconvenient, and the problem of pipeline corrosion is further aggravated.

SUMMERY OF THE UTILITY MODEL

For the waste heat recovery structure that solves that prior art's gas module stove exists lead to flue gas disorder, water course in a jumble, fan, water pump load are big to and the inconvenient technical problem of comdenstion water collection, the utility model provides a solve the novel gas condensation module stove structure of above-mentioned problem.

The utility model provides a novel gas condensation module stove structure, including collection petticoat pipe, exhaust port with the gas module stove of collection petticoat pipe intercommunication, the collection petticoat pipe is one end open-ended hollow cylinder, and it is inside to play to be equipped with flow equalizing pore plate, a set of or multiunit fin heat exchange tube, one or more by being equipped with open-ended one end and advances the mouth in proper order, and the terminal surface relative with the opening is equipped with the outlet.

In a preferred embodiment of the novel gas condensing modular furnace structure provided by the utility model, the fume collecting hood comprises two sections, wherein the section close to the opening has a larger width, and the section close to the water outlet has a smaller width; the wider section is provided with the flow equalizing pore plate and one or more groups of fin heat exchange tubes, and the narrower section is provided with one or more smoke inlets.

The utility model provides a novel in a preferred embodiment of gas condensation module stove structure, fin heat exchange tube's head and tail end runs through respectively the relative two sides lateral wall of collection petticoat pipe is to its outside, the side with locate the gap control board butt of collection petticoat pipe inner wall.

In a preferred embodiment of the novel gas condensing modular furnace structure provided by the utility model, the smoke inlet is symmetrically arranged on two opposite side surfaces of the smoke collecting hood; each smoke inlet is internally provided with an anti-return air cover which is a one-way structure only from outside to inside.

In a preferred embodiment of the novel gas condensing modular furnace structure provided by the utility model, the fume collecting hood is a square tubular structure with an opening at one end, a section close to the opening has a larger width, the fume collecting hood is internally provided with the flow equalizing pore plate and one or more groups of fin heat exchange tubes, and the head and tail ends of the fin heat exchange tubes respectively penetrate through the two side walls of the fume collecting hood in the widening direction to the outside of the fume collecting hood; the section close to the water outlet is smaller in width, and an even number of smoke inlets are symmetrically arranged on the side walls of the other two surfaces adjacent to the head end and the tail end of the heat exchange tube. The gas module furnace is symmetrically arranged at two sides of the smoke collecting hood, which are provided with the smoke inlet; the head end and the tail end of the heat exchanger in the gas module furnace respectively penetrate through the two opposite side walls of the gas module furnace to the outside of the gas module furnace in the direction parallel to the widening direction of the smoke collecting cover.

The gas-collecting hood is characterized by further comprising a main water inlet pipe and a main water outlet pipe which are symmetrically arranged outside the two side walls in the widening direction of the gas-collecting hood and are respectively connected with the end parts of the finned heat exchange tubes and the heat exchangers in the gas module furnace at the same side through a branch pipeline.

Compared with the prior art, the novel gas condensing module furnace structure provided by the utility model combines the smoke collecting hood, the fin heat exchange tube, the flow equalizing pore plate, the gap control plate, the anti-return hood and the water outlet into a whole, and has simple structure and reasonable layout; the flue is unobstructed, and can be adjusted through the top flow equalizing pore plate to control the overall backpressure, so that multiple requirements of the equipment under different working conditions are met; concentrated condensation heat exchange is carried out, and condensed water is discharged in a concentrated manner;

the heat exchange structure in the novel gas condensation module furnace structure provided by the utility model adopts the fin heat exchange tube, and has the advantages of large heat exchange area, pressure bearing capacity of 1.2Mpa, good corrosion resistance and the like; and the water path adopts a parallel mode, the temperature rise can be variably adjusted at 10-30 ℃, the applicability is improved, the pipeline structure is clear, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic structural view of a novel gas condensing modular furnace structure;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of a wind-collecting cover in the structure of the novel gas condensing module furnace;

fig. 4 is a sectional view of fig. 3.

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 to 4, wherein fig. 1 and 2 are a schematic structural diagram and a sectional view of a novel gas condensing module furnace structure 1 according to the present invention, and fig. 3 and 4 are a schematic structural diagram and a sectional view of a wind-collecting cover 3. The novel gas condensation module furnace structure 1 comprises a gas module furnace 2, a wind collecting cover 3, a main water inlet pipe 4 and a main water outlet pipe 5.

The gas module 2 comprises a burner 22, a hearth 23, a main heat exchanger 24, a main flow equalizing plate 25 and a fan 26 which are arranged in the shell 21 from bottom to top in sequence. The main heat exchanger 24 is a finned heat exchange tube, the head end and the tail end of the main heat exchanger penetrate through the two opposite side surfaces of the shell 21 respectively, the fan 26 is a centrifugal fan, the axial direction of the fan is a smoke inlet direction, the flow direction of smoke in the shell 21 is opposite to the fan, the tangential direction of the fan is a smoke exhaust direction, and the fan is connected with the air collecting cover 3 through a smoke exhaust pipeline 27. The smoke exhaust pipeline 27 is arranged at the other side surface adjacent to the head end and the tail end of the main heat exchanger 24. Other structures are basically consistent with the prior art, and are not described in detail herein.

The wind-collecting cover 3 is a hollow square-tube structure which is approximately Y-shaped, the upper section is wider, the lower section is narrower, and the two sections are connected through an inclined plane. The top surface is provided with a circular smoke outlet, the lower part of the top surface is sequentially provided with a secondary flow equalizing plate 31 and two secondary heat exchangers 32, and the bottom surface is provided with a water outlet 33. The secondary heat exchanger 32 is also a finned heat exchange tube, and the head end and the tail end of the secondary heat exchanger penetrate through two opposite side surfaces in the widening direction of the smoke collecting cover 3 respectively. On the other two adjacent side surfaces, two or four smoke inlets are respectively arranged at the positions below the secondary heat exchanger 32 one above the other, the smoke inlets are correspondingly connected with the smoke exhaust pipes 27 of the four gas modules 2 one by one, and an anti-return air cover 34 is arranged in each connection.

The upper two sides of the two secondary heat exchangers 32 are fixed on the inner wall of the smoke collecting hood 3, the lower two sides of the secondary heat exchangers are respectively abutted against a gap adjusting plate 35 arranged on the inner wall of the smoke collecting hood 3, and the gap between the two secondary heat exchangers 32 is adjusted by adjusting the height of the gap adjusting plate 35.

Based on the above structure, the head and tail ends of the primary heat exchanger 24 and the secondary heat exchanger 32 are respectively on the same two sides. The two side surfaces are respectively provided with the main water inlet pipe 4 and the main water outlet pipe 5 which are respectively connected with the head and the tail ends of the four main heat exchangers 24 and the two secondary heat exchangers 32 through six water inlet pipes and six water outlet pipes.

In specific implementation, high-temperature flue gas generated by the combustor 22 in the furnace 23 sequentially passes through the main heat exchanger 24, the main flow equalizing plate 25, the fan 26 and the smoke exhaust pipeline 27 to enter the smoke collection hood 3 under the negative pressure generated by the fan 26; then the waste gas passes through the secondary heat exchanger 32 and the secondary flow equalizing plate 31 upwards and is discharged from a smoke outlet at the top. The water flow from the main water inlet pipe 4 passes through six water inlet pipes to the four main heat exchangers 24 and the two secondary heat exchangers 32, and then is converged in the main water outlet pipe 5 through six water outlet pipes.

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 novel gas condensation module stove structure, including collection petticoat pipe, exhaust port with the gas module stove of collection petticoat pipe intercommunication, its characterized in that: the smoke collecting cover is a hollow cylinder with one open end, a flow equalizing pore plate, one or more groups of fin heat exchange tubes and one or more smoke inlets are sequentially arranged in the smoke collecting cover from the open end, and a water outlet is arranged on the end face opposite to the open end.

2. The novel gas condensing modular furnace structure of claim 1, wherein: the smoke collecting hood comprises two sections, wherein one section close to the opening is larger in width, and the other section close to the water discharge opening is smaller in width; the wider section is provided with the flow equalizing pore plate and one or more groups of fin heat exchange tubes, and the narrower section is provided with one or more smoke inlets.

3. The novel gas condensing modular furnace structure of claim 1, wherein: the fin heat exchange tube is characterized in that the head end and the tail end of the fin heat exchange tube respectively penetrate through the two opposite side walls of the fume collecting hood to the outside of the fume collecting hood, and the side surfaces of the fin heat exchange tube are abutted to the gap control plates arranged on the inner wall of the fume collecting hood.

4. The novel gas condensing modular furnace structure of claim 1, wherein: the smoke inlet is symmetrically arranged on two opposite side surfaces of the smoke collecting cover; each smoke inlet is internally provided with an anti-return air cover which is a one-way structure only from outside to inside.

5. The novel gas condensing modular furnace structure of any one of claims 1 to 4, wherein: the smoke collecting hood is of a square cylindrical structure with an opening at one end, the width of a section close to the opening is larger, the flow equalizing pore plate and one or more groups of fin heat exchange tubes are arranged in the smoke collecting hood, and the head end and the tail end of each fin heat exchange tube respectively penetrate through two side walls of the smoke collecting hood in the widening direction to the outside of the smoke collecting hood; the section close to the water outlet is smaller in width, and an even number of smoke inlets are symmetrically arranged on the side walls of the other two surfaces adjacent to the head end and the tail end of the heat exchange tube.

6. The novel gas condensing modular furnace structure of claim 5, wherein: the gas module furnace is symmetrically arranged at two sides of the smoke collecting hood, which are provided with the smoke inlet; the head end and the tail end of the heat exchanger in the gas module furnace respectively penetrate through the two opposite side walls of the gas module furnace to the outside of the gas module furnace in the direction parallel to the widening direction of the smoke collecting cover.

7. The novel gas condensing modular furnace structure of claim 6, wherein: the gas-collecting hood is characterized by further comprising a main water inlet pipe and a main water outlet pipe which are symmetrically arranged outside the two side walls in the widening direction of the gas-collecting hood and are respectively connected with the end parts of the finned heat exchange tubes and the heat exchangers in the gas module furnace at the same side through a branch pipeline.