CN210345869U

CN210345869U - Full-premixing copper finned tube low-nitrogen gas-fired hot water boiler

Info

Publication number: CN210345869U
Application number: CN201920200210.3U
Authority: CN
Inventors: 孟令宾
Original assignee: Baolan Technology Co ltd
Current assignee: Baolan Technology Co ltd
Priority date: 2019-02-03
Filing date: 2019-02-03
Publication date: 2020-04-17
Anticipated expiration: 2029-02-03

Abstract

The utility model discloses a low nitrogen gas boiler of copper finned tube is mixed in advance entirely, including casing, copper finned tube heat transfer body and the metal surface combustion ware is mixed in advance entirely, the heat exchanger adopts four return stroke structures of water pipe, and return water mouth and delivery port setting are in the heat exchanger top. The heat exchange tube of the heat exchanger is a copper finned tube, the upper and lower parts of the heat exchanger are respectively provided with a diversion cast iron end socket, the end sockets are provided with a plurality of expansion connection holes, and the expansion connection holes are provided with threaded process holes, so that the plugging is convenient. The side surface of the upper diversion seal head of the heat exchanger is provided with a return water pipe connector and a water outlet pipe connector, and the side surface of the lower diversion seal head of the heat exchanger is provided with two sewage discharge ports. The utility model has the advantages of it is following: uniform mixing, long service life, quick heat conduction, reduced floor area, reduced weight and water capacity of the boiler.

Description

Full-premixing copper finned tube low-nitrogen gas-fired hot water boiler

Technical Field

The utility model relates to a boiler technical field, more specifically the utility model relates to a low nitrogen gas hot water boiler of copper finned tube is mixed in advance entirely that says so.

Background

Compared with coal and fuel oil, the gas fuel is a better, efficient and clean boiler fuel, the ignition temperature is relatively low, the flame propagation speed is high, the combustion speed is high, and the automatic gas transmission, mixing and combustion processes are easy to realize, so that the gas fuel has wide application in the technical field of gas boilers. But traditional material boiler body occupation space is great, heat exchange efficiency is low, weight is big, water capacity is big, the standby loss is great, the life-span is short, the energy just is unfavorable for energy-conservation and distributed energy's arrangement.

Therefore, how to provide a fully premixed copper finned tube low-nitrogen gas hot water boiler with the characteristics of energy conservation, long service life, fast heat conduction, accurate heating, low nitrogen, high efficiency and the like is a problem to be solved urgently by the technical staff in the field.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a low nitrogen gas boiler of full premix copper finned tube with characteristics such as energy saving, increase of service life, heat conduction are fast, the heating is accurate, low nitrogen, high efficiency.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a low nitrogen gas boiler of full premix copper finned tube which characterized in that includes: the heat exchanger adopts a water pipe four-return structure, a water return port and a water outlet; is arranged above the heat exchanger. The heat exchange tube of the heat exchanger is a copper finned tube, the upper and lower parts of the heat exchanger are respectively provided with a diversion cast iron end socket, the end sockets are provided with a plurality of expansion connection holes, and the expansion connection holes are provided with threaded process holes, so that the plugging is convenient. The side surface of the upper diversion seal head of the heat exchanger is provided with a return water pipe connector and a water outlet pipe connector, and the side surface of the lower diversion seal head of the heat exchanger is provided with two sewage discharge ports.

Preferably, in the fully premixed copper finned tube low-nitrogen gas hot water boiler, 120 copper tubes are arranged and arranged in three rows.

5. Preferably, in the fully premixed copper finned tube low-nitrogen gas hot water boiler, the copper finned tube adopts a water flow four-return stroke instant heating type heat exchange structure.

Preferably, in the fully premixed copper finned tube low-nitrogen gas hot water boiler, the heat exchanger is respectively provided with a diversion cast iron end socket at the upper part and the lower part, and each end socket is provided with 120 expansion holes and 120 threaded process holes; the upper end enclosure is internally provided with three partition plates, and the lower end enclosure is internally provided with two partition plates, so that the water pipes can be divided into four groups to form a four-return water flow.

Through foretell technical scheme, compare with prior art, the utility model has the following advantage:

(1) the full premix burner uniformly mixes air and gas, quickly and completely burns, and automatically adjusts the output load in real time by 20-100 percent by matching with a frequency conversion technology-360 degrees tracking load;

(2) copper finned tube heat transfer body, the instant heating type heat transfer structure of four return strokes, the life-span is overlength, and heat conduction is fast. The copper finned tube has very high heat conductivity, heat exchange area many times larger than that of light tube and corrosion resistance. The heat conductivity coefficient is more than 10 times of that of cast iron and is more than 20 times of that of stainless steel, the heat exchange is fast, the scale is not easy to form, and the heat exchange efficiency cannot be reduced year by year.

(3) A fully premixed metal surface burner is adopted, special metal fibers are used as a burning surface, and the heating is accurate, and not only is the nitrogen content low and the efficiency high;

(4) the boiler heat exchanger copper finned tube encloses into the cylinder, and combustor burner position also is cylindrical, and it is accurate to heat.

(5) The floor area of the boiler can be greatly reduced, the weight of the boiler is lightened, and the water capacity of the boiler is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Figure 2 attached drawing is the utility model discloses a heat transfer body structure sketch map.

Figure 3 the attached drawing is the utility model discloses a structural schematic of cast iron head on heat transfer body.

Figure 4 the attached drawing is the utility model discloses a structural schematic of cast iron head under heat transfer body.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses harmful substance NOx discharges low, the heat transfer is fast, the heating is rapid, light in weight, area is little, the high low nitrogen gas boiler of full premix copper finned tube of thermal efficiency.

Referring to fig. 1-3, for the utility model discloses a low nitrogen gas-fired hot water boiler of full premix copper finned tube specifically includes:

the device comprises a shell 1, copper finned tubes 2 arranged inside an outer shell 1 and an inner shell 7 and a metal fiber combustion head 3 arranged inside the copper finned tubes 2, wherein the upper ends of the copper finned tubes 2 are provided with diversion cast iron upper end sockets 25; the mixed gas rectifying chamber 22 is arranged on the diversion cast iron upper end enclosure 25; the mixed gas rectifying chamber 22 is provided with a direct-current variable-frequency fan 21; a Venturi air inlet system 30 is fixed on the direct-current variable-frequency fan 21; a water return port 27 and a water outlet 28 are respectively arranged on one side of the cast iron upper end enclosure 25; the lower ends of the copper finned tubes 2 are provided with cast iron lower end sockets 29; the cast iron upper end enclosure 25 and the cast iron lower end enclosure 29 are provided with a plurality of expansion holes 31 for fixing the copper finned tube 2; a blocking thread fabrication hole 26 is arranged on the reverse side of the expansion connection hole 31; and a sewage discharge interface 23 and a sewage discharge interface 24 are arranged on the side surface of the cast iron lower end socket 29. And stainless steel sheets are arranged around the copper finned tube 2 to apply back pressure to the boiler to stabilize the flue gas.

In order to further optimize the technical scheme, 120 copper pipes 2 are arranged and arranged in three rows.

In order to further optimize the technical scheme, the copper pipe 2 adopts a four-return-stroke even-type heat exchange structure.

In order to further optimize the technical scheme, the fully premixed copper finned tube low-nitrogen gas hot water boiler is characterized in that the upper part and the lower part of the heat exchanger are respectively provided with a flow guide cast iron end socket, and each end socket is provided with 120 expansion holes and 120 threaded process holes which can be plugged. The side surface of the upper diversion seal head of the heat exchanger is provided with a return water pipe connector and a water outlet pipe connector, and the side surface of the lower diversion seal head of the heat exchanger is provided with two sewage discharge ports. The upper end enclosure is internally provided with three partition plates, and the lower end enclosure is internally provided with two partition plates, so that the water pipes can be divided into four groups to form a four-return water flow.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a low nitrogen gas boiler of full premix copper finned tube which characterized in that includes: the heat exchanger adopts a water pipe four-return structure, a water return port and a water outlet; is arranged above the heat exchanger; the heat exchange tube of the heat exchanger is a copper finned tube, the upper and lower parts of the heat exchanger are respectively provided with a diversion cast iron end socket, the end socket is provided with a plurality of expansion connection holes, and the expansion connection holes are provided with threaded process holes, so that the plugging is convenient; the side surface of the upper diversion seal head of the heat exchanger is provided with a return water pipe connector and a water outlet pipe connector, and the side surface of the lower diversion seal head of the heat exchanger is provided with two sewage discharge ports.

2. The fully premixed copper finned tube low-nitrogen gas fired hot water boiler according to claim 1, wherein the heat exchange body copper tubes are provided with 120 tubes and arranged in three rows.

3. The fully premixed copper finned tube low-nitrogen gas hot water boiler according to claim 2, characterized in that the copper tube adopts a water flow four-pass instant heating type heat exchange structure.

4. The fully premixed copper finned tube low-nitrogen gas fired hot water boiler according to claim 3, wherein a diversion cast iron end socket is respectively arranged at the upper and lower parts of the heat exchanger, and each end socket is provided with 120 expansion holes and 120 threaded process holes; the upper end enclosure is internally provided with three partition plates, and the lower end enclosure is internally provided with two partition plates, so that the water pipes can be divided into four groups to form a four-return water flow.