Horizontal hot water boiler

Abstract

The utility model belongs to the technical field of heating equipment, and particularly relates to a horizontal hot water boiler which comprises a shell and a boiler door, a hearth and a tempering bin which are communicated with each other are arranged in the shell, a burner is arranged outside the shell, and a first smoke pipe and a second smoke pipe are arranged above the hearth. The first smoke pipe and the second smoke pipe each comprise an inner smoke pipe and an outer smoke pipe fixedly arranged outside the inner smoke pipe in a sleeving mode, and a plurality of turbulent flow fins are annularly arranged on the inner wall of each inner smoke pipe. The horizontal hot water boiler provided by the utility model is provided with the low-nitrogen 80mg combustor, and the outer smoke pipe and the shell are both made of 316L stainless steel and are subjected to coating treatment by adopting a nanotechnology; the turbulent flow fins are silicon-magnesium-aluminum alloy turbulent flow fins, the heat exchange area is increased, the heat conduction performance is excellent, and heat exchange is rapid and sufficient; an extra flue gas backdraft structure is not needed, the flue gas condensation effect is achieved through quick heat exchange of the turbulent flow fins, harmful substances in the flue gas are taken away by condensate water, and then ultra-low nitrogen emission is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating equipment, and specifically relates to a horizontal hot water boiler. Background Art

[0002] A boiler is a thermal energy device with high temperature and high pressure. It is one of the special equipment. Horizontal hot water boilers can be divided into horizontal electric hot water boilers, horizontal oil-fired hot water boilers, horizontal gas-fired hot water boilers, horizontal coal-fired hot water boilers, etc. according to the fuel of the boiler; according to the design and structure of the boiler, it can be divided into horizontal normal pressure hot water boilers and pressurized hot water boilers. Horizontal hot water boilers are mainly used for heating and hot water supply in bathing centers.

[0003] The utility model patent with publication number CN219063759U discloses a horizontal hot water boiler, including a furnace body, both ends of which are provided with head plates, which are fixed by bolts, a supporting base is installed at the bottom of the furnace body, a water inlet pipe is fixed to the surface of one side of the bottom of the furnace body, a water outlet pipe and an air vent are respectively fixed to the top surface of the furnace body, and a heat insulation component is arranged on the inner wall of the furnace body; the designed heat insulation component facilitates the protection and heat insulation of the interior of the furnace body, so that the temperature of the furnace body will not rise rapidly during the process of heating the water by the boiler, thus avoiding scalding of workers during operation, improving the safety of operation, slowing down the speed of temperature reduction inside the boiler, and improving the heating efficiency of the boiler for the water body, but the above-mentioned horizontal hot water boiler has a single heat exchange mechanism and has a low heat exchange efficiency during use. Utility Model Content

[0004] The purpose of the utility model is to provide a horizontal hot water boiler to solve the technical problems raised in the above background technology.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0006] A horizontal hot water boiler comprises a base, a shell is provided on the base, a furnace door is provided at one end of the shell, a smoke outlet is provided on the shell, a burner mounting port is provided on the furnace door, a burner is provided at one end of the shell outside the furnace door, a furnace and a tempering bin are provided in the shell, a heat exchange bin is provided outside the furnace and the tempering bin, one end of the furnace is communicated with the lower part of the tempering bin, and the other end is communicated with the burner mounting port, the upper part of the tempering bin is communicated with a plurality of first smoke pipes arranged above the furnace, a first smoke box is connected to the end of the first smoke pipe away from the tempering bin, a plurality of second smoke pipes are provided above the first smoke pipe, one end of the second smoke pipe is communicated with the first smoke box, and the other end is connected to the second smoke box, and the second smoke box is communicated with the smoke outlet;

[0007] The first smoke tube and the second smoke tube both include an inner smoke tube and an outer smoke tube fixedly sleeved outside the inner smoke tube, and the inner wall of the inner smoke tube is surrounded by a plurality of flow-interfering fins.

[0008] As an improvement, the outer smoke pipe is a 316L stainless steel pipe, the shell is a 316L stainless steel shell, and the spoiler fin is a silicon-magnesium-aluminum alloy spoiler fin;

[0009] The inner wall of the inner smoke tube is provided with six spoiler fins, and one end of the spoiler fin away from the inner wall of the inner smoke tube is in a "king" shape, and the inner wall of the inner smoke tube between two adjacent spoiler fins is provided with two heat dissipation protrusions;

[0010] The outer wall of the outer smoke tube is provided with a plurality of smoke tube engaging parts and reserved expansion parts spaced apart from each other, the inner wall of the smoke tube engaging part abuts against the outer wall of the inner smoke tube, and the inner diameter of the smoke tube engaging part is smaller than the inner diameter of the reserved expansion part.

[0011] As a further improvement, the height of the first smoke tube near one end of the tempering chamber is higher than the height of the other end of the first smoke tube, and the height of the second smoke tube near the first smoke box is higher than the height of the other end of the second smoke tube.

[0012] As a further improvement, a first condensation water port and a second condensation water port are provided at the bottom of the shell, the first condensation water port is connected to the bottom of the first smoke box, and the second condensation water port is connected to the bottom of the second smoke box;

[0013] A water inlet and a water outlet are provided on the top of the shell, and both the water inlet and the water outlet are communicated with the heat exchange chamber.

[0014] As a further improvement, a gun head is provided at one end of the burner close to the furnace door, and the gun head extends into the furnace through the burner installation opening, and an anti-scalding plate is provided between the furnace door and the burner.

[0015] As a further improvement, a cement insulation layer is provided on one side of the furnace door close to the furnace, and fireproof rock wool is provided between the furnace door and the cement insulation layer;

[0016] Refractory mineral wool is arranged between the gun head and the furnace door, and the refractory mineral wool is respectively against the outer wall of the gun head and the inner wall of the burner installation port.

[0017] As a further improvement, the shell is coated with fireproof rock wool, and an observation port is provided at one end of the shell close to the tempering chamber.

[0018] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] The horizontal hot water boiler provided by the utility model is equipped with a burner with a low nitrogen content of 80mg. The outer smoke pipe and the shell are both made of 316L stainless steel and are treated with a nanotechnology coating. The spoiler fins are silicon-magnesium-aluminum alloy spoiler fins, which increase the heat exchange area and have excellent thermal conductivity, making the heat exchange fast and sufficient. No additional flue gas backdraft structure is required, and the flue gas condensation effect is achieved through rapid heat exchange through the spoiler fins. The condensed water takes away harmful substances in the flue gas, thereby achieving ultra-low nitrogen emissions.

[0020] The utility model provides a horizontal hot water boiler, in which the first smoke pipe and the second smoke pipe are both inclined so that the smoke tilts downward when flowing outward rapidly. Condensed water generated in the process automatically flows out of the furnace with the help of gravity and the flow rate of the smoke, and can also clean the carbon deposits and residues in the first smoke pipe and the second smoke pipe, and then flows out of the first condensate outlet and the second condensate outlet through the first smoke box and the second smoke box.

[0021] The horizontal hot water boiler provided by the utility model has an outer wall of an outer smoke pipe provided with a smoke pipe engaging portion and a reserved expansion portion, so that the inner smoke pipe and the outer smoke pipe can be fixed, and a telescopic joint is reserved to absorb the expansion amount, thereby avoiding stress damage to the outer smoke pipe, and at the same time realizing heat transfer between the inner smoke pipe and the outer smoke pipe, and also increasing the heat exchange area between the outer smoke pipe and the heat exchange chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure inside the shell;

[0024] Figure 3 yes Figure 2 A magnified image of point A;

[0025] Figure 4 It is a schematic diagram of the structure of the burner;

[0026] Figure 5 It is a schematic diagram of the structure from another angle inside the shell;

[0027] Figure 6 It is a schematic diagram of the structure of the furnace door;

[0028] Figure 7 It is a schematic diagram of the internal structure of the inner smoke tube;

[0029] Figure 8 It is a schematic diagram of the structure of the outer smoke pipe;

[0030] Among them: 1-shell; 10-base; 11-smoke outlet; 12-water inlet; 13-water outlet; 14-first condensate outlet; 15-second condensate outlet; 16-observation port; 2-furnace door; 20-burner installation port; 21-cement insulation layer; 22-fireproof rock wool; 23-refractory mineral wool; 3-burner; 30-anti-scalding plate; 31-gun head; 4-furnace; 41-tempering chamber; 5-heat exchange chamber; 6-first smoke pipe; 61-first smoke box; 7-second smoke pipe; 71-second smoke box; 8-outer smoke pipe; 81-smoke pipe bite part; 82-reserved expansion part; 9-inner smoke pipe; 91-spoiler fin. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] like Figure 1-8 As shown, a horizontal hot water boiler comprises a base 10, on which a shell 1 is provided, one end of the shell 1 is provided with a furnace door 2, a smoke outlet 11 is provided on the shell 1, and a burner mounting port 20 is provided on the furnace door 2. A furnace 4 and a tempering bin 41 are provided in the shell 1, and a heat exchange bin 5 is provided outside the furnace 4 and the tempering bin 41. One end of the furnace 4 is communicated with the lower part of the tempering bin 41, and the other end is communicated with the burner mounting port 20. The upper part of the tempering bin 41 is connected with a plurality of first smoke pipes 6 arranged above the furnace 4, and one end of the first smoke pipe 6 away from the tempering bin 41 is connected to a first smoke box 61, and a plurality of second smoke pipes 7 are provided above the first smoke pipe 6, one end of the second smoke pipe 7 is connected to the first smoke box 61, and the other end is connected to a second smoke box 71, and the second smoke box 71 is connected to the smoke outlet 11.

[0034] The first smoke tube 6 and the second smoke tube 7 each include an inner smoke tube 9 and an outer smoke tube 8 fixedly sleeved outside the inner smoke tube 9, the outer smoke tube 8 is a 316L stainless steel smoke tube, the shell 1 is a 316L stainless steel shell, and the inner wall of the inner smoke tube 9 is ringed with a plurality of turbulence fins 91, which are silicon-magnesium-aluminum alloy turbulence fins with excellent thermal conductivity and rapid and sufficient heat exchange, and can quickly reduce the flue gas temperature from 750-850°C to 22-50°C via the first smoke tube 6 and the second smoke tube 7.

[0035] A burner 3 is provided at one end of the shell 1 near the furnace door 2. Specifically, the burner 3 is a low-nitrogen 80mg burner. A gun head 31 is provided at one end of the burner 3 near the furnace door 2. The gun head 31 passes through the burner mounting port 20 and extends into the furnace 4. An anti-scalding plate 30 is provided between the furnace door 2 and the burner 3 to prevent burns to the staff during operation.

[0036] The setting of the spoiler fins 91 increases the heat exchange area of ​​the first smoke tube 6 and the second smoke tube 7. The outer smoke tube 8 and the shell 1 are both treated with nano-technology coating. A low-nitrogen burner of 80mg is configured, and no additional flue gas backdraft structure is required. The flue gas condensation effect is achieved through rapid heat exchange through the spoiler fins 91. The condensed water takes away harmful substances in the flue gas, thereby achieving ultra-low nitrogen emissions of less than 30mg / kWH.

[0037] The height of the first smoke pipe 6 near one end of the tempering bin is higher than that of the other end of the first smoke pipe 6, and the height of the second smoke pipe 7 near the first smoke box 61 is higher than that of the other end of the second smoke pipe 7. The bottom of the shell 1 is provided with a first condensation water outlet 14 and a second condensation water outlet 15. The first condensation water outlet 14 is connected to the bottom of the first smoke box 61, and the second condensation water outlet 15 is connected to the bottom of the second smoke box 71, so that when the flue gas flows outward rapidly, the flue gas tilts downward, and condensation water is generated due to the rapid drop in temperature. The condensation water automatically flows out of the furnace 4 under the action of gravity and the flue gas flow rate. In the process, the carbon deposits and residues in the first smoke pipe 6 and the second smoke pipe 7 are taken out, and then flow out of the first condensation water outlet 14 and the second condensation water outlet 15 through the first smoke box 61 and the second smoke box 71.

[0038] The inner wall of the inner smoke tube 9 is ringed with six spoiler fins 91, and the end of the spoiler fin 91 away from the inner wall of the inner smoke tube 9 is in a "K" shape. Two heat dissipation protrusions are provided on the inner wall of the inner smoke tube 9 between two adjacent spoiler fins 91, and the outer wall of the outer smoke tube 8 is provided with a smoke tube bite part 81 and a reserved expansion part 82 at intervals. The inner wall of the smoke tube bite part 81 is abutted against the outer wall of the inner smoke tube 9, so that the inner smoke tube 9 and the outer smoke tube 8 can be fixed. The inner diameter of the smoke tube bite part 81 is smaller than the inner diameter of the reserved expansion part 82. The provision of the reserved expansion part 82 avoids the damage to the outer smoke tube 8 caused by the stress generated by the deformation of the inner smoke tube 9 due to heat, while realizing the heat transfer between the inner smoke tube 9 and the outer smoke tube 8, and also increasing the heat exchange area between the outer smoke tube 8 and the heat exchange bin 5.

[0039] A water inlet 12 and a water outlet 13 are provided on the top of the shell 1 , and both the water inlet 12 and the water outlet 13 are communicated with the heat exchange chamber 5 .

[0040] A fireproof rock wool 22 is provided on one side of the furnace door 2 close to the burner 3, and a cement insulation layer 21 is provided on the other side. A refractory mineral wool 23 is provided between the gun head 31 and the furnace door 2. Specifically, the fireproof rock wool 22 adopts 100 mm thick tear-resistant PU surface insulation fireproof rock wool, the cement insulation layer 21 adopts a recyclable ultra-light refractory cement insulation layer, and the refractory mineral wool 23 adopts 100 mm thick heat-insulating and sound-insulating refractory mineral wool to reduce heat loss.

[0041] An observation port 16 is provided at one end of the shell 1 close to the tempering bin 41 to facilitate observation of the situation in the tempering bin 41 or the furnace 4; the shell 1 is coated with fireproof rock wool 22. Specifically, the fireproof rock wool 22 adopts 100 mm thick tear-resistant PU surface insulation fireproof rock wool, which further reduces heat loss.

[0042] The utility model provides a horizontal hot water boiler, including a shell 1 and a furnace door 2. The shell 1 is provided with a connected furnace 4 and a tempering chamber 41. The shell 1 is provided with a burner 3 outside the shell 1. A first smoke pipe 6 and a second smoke pipe 7 are provided above the furnace 4. The first smoke pipe 6 and the second smoke pipe 7 both include an inner smoke pipe 9 and an outer smoke pipe 8 fixedly sleeved outside the inner smoke pipe 9. The outer smoke pipe 8 is a 316L stainless steel smoke pipe. The shell 1 is a 316L stainless steel shell 1. The inner wall of the inner smoke pipe 9 is provided with a plurality of turbulence fins 91. The turbulence fins 91 are silicon-magnesium-aluminum alloy turbulence fins 91, which have excellent thermal conductivity and fast and sufficient heat exchange. The outer smoke pipe 8 and the shell 1 are both treated with nano-technology coating. A burner with a low nitrogen content of 80 mg is configured, and no additional smoke backfire structure is required. The turbulence fins 91 are used for rapid heat exchange to achieve a smoke condensation effect. The condensed water takes away harmful substances in the smoke, thereby achieving ultra-low nitrogen emissions.

[0043] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A horizontal hot water boiler, comprising a base, a shell is disposed on the base, a furnace door is disposed at one end of the shell, a smoke outlet is disposed on the shell, a burner installation port is disposed on the furnace door, and a burner is disposed at one end of the shell near the furnace door, characterized in that: A furnace and a tempering bin are provided in the shell, a heat exchange bin is provided outside the furnace and the tempering bin, one end of the furnace is communicated with the lower part of the tempering bin, and the other end is communicated with the burner installation port, the upper part of the tempering bin is communicated with a plurality of first smoke pipes arranged above the furnace, one end of the first smoke pipe away from the tempering bin is connected to a first smoke box, a plurality of second smoke pipes are provided above the first smoke pipe, one end of the second smoke pipe is communicated with the first smoke box, and the other end is connected to the second smoke box, and the second smoke box is communicated with the smoke outlet; The first smoke tube and the second smoke tube both include an inner smoke tube and an outer smoke tube fixedly sleeved outside the inner smoke tube, and the inner wall of the inner smoke tube is surrounded by a plurality of flow-interfering fins.

2. A horizontal hot water boiler according to claim 1, characterized in that: The outer smoke pipe is a 316L stainless steel pipe, the shell is a 316L stainless steel shell, and the spoiler fin is a silicon-magnesium-aluminum alloy spoiler fin; The inner wall of the inner smoke tube is provided with six spoiler fins, and the end of the spoiler fin away from the inner wall of the inner smoke tube is in a "king" shape, and the inner wall of the inner smoke tube between two adjacent spoiler fins is provided with two heat dissipation protrusions; The outer wall of the outer smoke tube is provided with a plurality of smoke tube engaging parts and reserved expansion parts spaced apart from each other, the inner wall of the smoke tube engaging part abuts against the outer wall of the inner smoke tube, and the inner diameter of the smoke tube engaging part is smaller than the inner diameter of the reserved expansion part.

3. A horizontal hot water boiler according to claim 1, characterized in that: The height of one end of the first smoke tube close to the tempering chamber is higher than the height of the other end of the first smoke tube, and the height of the second smoke tube close to the first smoke box is higher than the height of the other end of the second smoke tube.

4. A horizontal hot water boiler according to claim 1, characterized in that: The bottom of the shell is provided with a first condensation water port and a second condensation water port, the first condensation water port is connected to the bottom of the first smoke box, and the second condensation water port is connected to the bottom of the second smoke box; A water inlet and a water outlet are provided on the top of the shell, and both the water inlet and the water outlet are communicated with the heat exchange chamber.

5. A horizontal hot water boiler according to any one of claims 1 to 4, characterized in that: A gun head is arranged at one end of the burner close to the furnace door, and the gun head extends into the furnace through the burner installation opening, and an anti-scalding plate is arranged between the furnace door and the burner.

6. A horizontal hot water boiler according to claim 5, characterized in that: A cement insulation layer is provided on one side of the furnace door close to the furnace, and fireproof rock wool is provided between the furnace door and the cement insulation layer; Refractory mineral wool is arranged between the gun head and the furnace door, and the refractory mineral wool is respectively against the outer wall of the gun head and the inner wall of the burner installation port.

7. A horizontal hot water boiler according to claim 1, characterized in that: The shell is coated with fireproof rock wool, and an observation port is provided at one end of the shell close to the tempering bin.

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