Fuel oil gas boiler with secondary heating structure

Abstract

The fuel oil gas boiler with the secondary heating structure comprises a shell and a boiler body, the boiler body is fixedly installed in the shell, a heating bin is fixedly installed above the boiler body and located in the shell, the output end of the boiler body is connected with the bottom of the heating bin in a penetrating mode through a heating pipe, the outer surface of the heating bin is connected with a spiral pipe in a sleeved mode, and the spiral pipe is connected with the boiler body. The top opening of the spiral pipe is communicated with the top of the heating bin through a return pipe, and the bottom opening of the spiral pipe is communicated with an air outlet. The utility model has the beneficial effects that fuel is supplied by the atomizing nozzle and the feeding pipe, air is supplied by the air inlet pipe, the fuel and the air are combusted in the furnace body to form high-temperature gas, the high-temperature gas enters the heating bin along the heating pipe, water is introduced into the water conveying pipe and enters the atomizing nozzle through the flow dividing pipe to be sprayed out, the water is fully dispersed, and the water and the high-temperature gas quickly form high-temperature steam; the atomizing nozzle obviously disperses water, enlarges the contact between the water and high-temperature gas, quickly generates high-temperature steam, and improves the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a fuel oil and gas boiler with a secondary heating structure. Background Art

[0002] A boiler is an energy conversion device. The energy input into the boiler is in the form of chemical energy in the fuel, electrical energy, thermal energy of high-temperature flue gas, etc. After conversion by the boiler, it outputs steam, high-temperature water or organic heat carrier with a certain amount of thermal energy.

[0003] After searching, it was found that the publication number is CN212132404U, and the name is fuel gas superheated steam boiler. The application raises the problem that steam boilers are not easy to heat. The water entering through the water inlet pipe is heated through the furnace to generate hot steam. The hot steam enters the secondary heating chamber through the steam pipe for reheating to meet the needs, and the water in the preheating box is preheated through the dispersion main pipe and the folded dispersion branch pipe. The dispersion plate and the grooves on the dispersion plate have a certain dispersion effect on the water entering the water inlet pipe, which is convenient for preheating the water. However, the application uses a heating plate to perform secondary heating of the steam. The heating plate is electrically driven, consumes a lot of energy, and is relatively energy-consuming. At the same time, the dispersion plate has a poor effect on dispersing the water flow, and the water flow is still concentrated in large quantities, the heat exchange efficiency is low, the steam generation efficiency is low, and the work efficiency can be further improved.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an oil-fired gas boiler with a secondary heating structure, which has the advantages of reducing energy consumption and improving work efficiency, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above advantages of reducing energy consumption and improving work efficiency, the specific technical solutions adopted by the utility model are as follows:

[0009] An oil-fired gas boiler with a secondary heating structure comprises an outer shell and a furnace body, wherein the furnace body is fixedly installed inside the outer shell, and a heating bin is fixedly installed inside the outer shell above the furnace body, and the output end of the furnace body is through-connected with the bottom of the heating bin through a heating pipe, a spiral tube is sleeved on the outer surface of the heating bin, and the top of the spiral tube is through-connected with the top of the heating bin through a reflux pipe, and the bottom of the spiral tube is through-connected with an air outlet, the air outlet passes through the outer shell and extends to the outside of the outer shell, a water pipe is installed on the top surface of the outer shell, and a shunt pipe is through-connected on the surface of the water pipe, and the shunt pipe extends to the inside of the heating bin and is through-connected with an atomizing nozzle.

[0010] Furthermore, the feed end of the furnace body is connected with a feed pipe, and the air inlet end of the furnace body is connected with an air inlet pipe.

[0011] Furthermore, the spiral tube is made of copper tube, and the spiral tube is distributed along the height direction of the furnace body.

[0012] Furthermore, there are multiple diverter pipes arranged, and the diverter pipes are distributed at equal intervals.

[0013] Furthermore, a mist collector is fixedly installed inside the heating chamber, and the mist collector is located above the atomizing nozzle.

[0014] Furthermore, an inspection door is hinged on the front facade of the shell, and a plurality of inspection doors are arranged.

[0015] Furthermore, a heat insulation layer is fixedly installed on the inner wall of the shell.

[0016] Furthermore, the distance between the bottom surface of the atomizing nozzle and the top of the heating tube is not less than 1m.

[0017] (III) Beneficial effects

[0018] Compared with the prior art, the utility model provides an oil-fired gas boiler with a secondary heating structure, which has the following beneficial effects:

[0019] (1) The utility model adopts an atomizing nozzle. The fuel is supplied into the feed pipe, and the air is supplied into the air intake pipe. The two are burned inside the furnace body to form high-temperature gas, which enters the heating chamber along the heating pipe. Water is passed into the water supply pipe and enters the atomizing nozzle through the diverter pipe to be sprayed out. The water is fully dispersed and quickly forms high-temperature steam with the high-temperature gas. The atomizing nozzle significantly disperses the water, expands the contact between the water and the high-temperature gas, quickly generates high-temperature steam, and improves work efficiency.

[0020] (2) The utility model adopts a spiral tube, which surrounds the outer surface of the furnace body and fits against the outer wall of the furnace body. The high-temperature steam flowing out of the heating chamber enters the spiral tube along the reflux pipe. The heat generated by the heating of the furnace body is transferred to the spiral tube along the outer surface. The spiral tube transfers the heat to the high-temperature steam, performs secondary heating on the high-temperature steam, and increases the outflow temperature of the high-temperature steam. The device utilizes the waste heat of the outer wall of the furnace body to perform secondary heating on the high-temperature steam, fully utilizes the waste heat resources, reduces energy consumption, simplifies the structure, and improves the convenience of use and work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the internal structure of the oil-fired gas boiler with a secondary heating structure proposed by the utility model;

[0023] Figure 2 It is a schematic diagram of the external structure of the oil-fired gas boiler with a secondary heating structure proposed by the utility model;

[0024] Figure 3 It is a schematic diagram of the external structure of the heating chamber proposed by the utility model;

[0025] Figure 4 It is a schematic diagram of the installation of the atomizing nozzle proposed by the utility model.

[0026] In the figure:

[0027] 1. Shell; 2. Furnace body; 3. Spiral tube; 4. Heating chamber; 5. Mist collector; 6. Water pipe; 7. Diverter pipe; 8. Atomizing nozzle; 9. Reflux pipe; 10. Heating pipe; 11. Air outlet; 12. Feed pipe; 13. Air inlet pipe; 14. Inspection door. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the utility model, a fuel oil and gas boiler with a secondary heating structure is provided.

[0030] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to an embodiment of the utility model, the oil-fired gas boiler with a secondary heating structure includes an outer shell 1 and a furnace body 2, the furnace body 2 is fixedly installed inside the outer shell 1, and a heating bin 4 is fixedly installed above the furnace body 2 inside the outer shell 1, and the output end of the furnace body 2 is connected to the bottom of the heating bin 4 through a heating pipe 10, and a plurality of heating pipes 10 are arranged, a spiral pipe 3 is sleeved on the outer surface of the heating bin 4, and the top of the spiral pipe 3 is connected to the top of the heating bin 4 through a reflux pipe 9, and the bottom of the spiral pipe 3 is connected to an air outlet 11, the air outlet 11 penetrates the outer shell 1 and extends to the outside of the outer shell 1, a water pipe 6 is installed on the top surface of the outer shell 1, and the surface of the water pipe 6 A shunt pipe 7 is connected through the surface, and the shunt pipe 7 extends to the inside of the heating bin 4 and is connected through an atomizing nozzle 8, wherein a feed pipe 12 is connected through the feed end of the furnace body 2, and an air intake pipe 13 is connected through the air intake end of the furnace body 2. The feed pipe 12 supplies fuel, and the air intake pipe 13 supplies air. The two burn inside the furnace body 2 to form high-temperature gas, which enters the heating bin 4 along the heating pipe 10. Water is introduced into the water pipe 6, and enters the atomizing nozzle 8 through the shunt pipe 7 for spraying, fully dispersing the water and quickly forming high-temperature steam with the high-temperature gas. The atomizing nozzle 8 significantly disperses the water, expands the contact between water and high-temperature gas, quickly generates high-temperature steam, and improves work efficiency.

[0031] In one embodiment, the spiral tube 3 is a copper tube, and the spiral tube 3 is distributed along the height direction of the furnace body 2. The spiral tube 3 surrounds the outer surface of the furnace body 2 and fits the outer wall of the furnace body 2. The high-temperature steam flowing out of the heating chamber 4 enters the spiral tube 3 along the reflux pipe 9. The heat generated by the heating of the furnace body 2 is transferred to the spiral tube 3 along the outer surface. The spiral tube 3 transfers the heat to the high-temperature steam, performs secondary heating on the high-temperature steam, and increases the outflow temperature of the high-temperature steam. This device utilizes the waste heat of the outer wall of the furnace body 2 to perform secondary heating on the high-temperature steam, makes full use of waste heat resources, reduces energy consumption, simplifies the structure, and improves the convenience of use and work efficiency.

[0032] In one embodiment, a plurality of diverter pipes 7 are arranged, and the diverter pipes 7 are distributed at equal intervals, thereby expanding the distribution range of the water mist and improving work efficiency.

[0033] In one embodiment, a mist collector 5 is fixedly installed inside the heating chamber 4, and the mist collector 5 is located above the atomizing nozzle 8. The mist collector 5 prevents water mist from passing through, thereby improving the cleanliness of water vapor.

[0034] In one embodiment, an inspection door 14 is hinged on the front facade of the housing 1, and a plurality of inspection doors 14 are arranged for easy opening for inspection.

[0035] In one embodiment, a heat insulating layer is fixedly installed on the inner wall of the outer shell 1 to play a role in heat preservation and heat insulation. This is a common structure in the art and is not shown in the figure.

[0036] In one embodiment, the distance between the bottom surface of the atomizing nozzle 8 and the top of the heating tube 10 is not less than 1 m, which provides a sufficient height for the water mist to fall and facilitates the water mist to be heated to form water vapor.

[0037] Working principle:

[0038] Fuel is supplied by the feed pipe 12, and air is supplied by the air intake pipe 13. The two are burned inside the furnace body 2 to form high-temperature gas, which enters the heating chamber 4 along the heating pipe 10. Water is introduced into the water delivery pipe 6, and enters the atomizing nozzle 8 through the diverter pipe 7 for spraying, fully dispersing the water and quickly forming high-temperature steam with the high-temperature gas. The atomizing nozzle 8 significantly disperses the water, expands the contact between the water and the high-temperature gas, quickly generates high-temperature steam, and improves work efficiency. At the same time, the spiral tube 3 surrounds the outer surface of the furnace body 2 and fits the outer wall of the furnace body 2. The high-temperature steam flowing out of the heating chamber 4 enters the spiral tube 3 along the reflux pipe 9. The heat generated by the heating of the furnace body 2 is transferred to the spiral tube 3 along the outer surface. The spiral tube 3 transfers the heat to the high-temperature steam, performs secondary heating on the high-temperature steam, and increases the outflow temperature of the high-temperature steam. The device utilizes the waste heat of the outer wall of the furnace body 2 to perform secondary heating on the high-temperature steam, makes full use of waste heat resources, reduces energy consumption, simplifies the structure, and improves the convenience of use and work efficiency.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fuel oil and gas boiler with a secondary heating structure, characterized in that: The invention comprises an outer shell (1) and a furnace body (2), wherein the furnace body (2) is fixedly installed inside the outer shell (1), and a heating chamber (4) is fixedly installed above the furnace body (2) inside the outer shell (1), and the output end of the furnace body (2) is connected to the bottom of the heating chamber (4) through a heating pipe (10), a spiral tube (3) is sleeved on the outer surface of the heating chamber (4), and the top of the spiral tube (3) is connected to the top of the heating chamber (4) through a return pipe (9), and the bottom of the spiral tube (3) is connected to an air outlet (11), and the air outlet (11) passes through the outer shell (1) and extends to the outside of the outer shell (1), a water pipe (6) is installed on the top surface of the outer shell (1), and a shunt pipe (7) is connected to the surface of the water pipe (6), and the shunt pipe (7) extends to the inside of the heating chamber (4) and is connected to an atomizing nozzle (8).

2. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: The feed end of the furnace body (2) is connected through a feed pipe (12), and the air intake end of the furnace body (2) is connected through an air intake pipe (13).

3. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: The spiral tube (3) is made of a copper tube, and the spiral tube (3) is distributed along the height direction of the furnace body (2).

4. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: A plurality of the diverter pipes (7) are arranged, and the diverter pipes (7) are distributed at equal intervals.

5. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: A mist collector (5) is fixedly installed inside the heating chamber (4), and the mist collector (5) is located above the atomizing nozzle (8).

6. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: An inspection door (14) is hingedly connected to the front facade of the housing (1), and a plurality of inspection doors (14) are arranged.

7. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: A heat insulation layer is fixedly mounted on the inner wall of the outer shell (1).

8. The oil-fired gas boiler with a secondary heating structure according to claim 1, characterized in that: The distance between the bottom surface of the atomizing nozzle (8) and the top of the heating tube (10) is not less than 1 m.

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