CN215001509U

CN215001509U - Environment-friendly energy-saving boiler formed by annularly arranging coaxial tube groups

Info

Publication number: CN215001509U
Application number: CN202121052845.7U
Authority: CN
Inventors: 李坤财; 李忠财
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2021-12-03
Anticipated expiration: 2031-05-17

Abstract

The utility model discloses an environment-friendly energy-saving boiler formed by annularly arranging coaxial pipe groups, which comprises a boiler body, wherein an upper annular header, a lower annular header, an upper fire baffle, a lower fire baffle and a plurality of vertically arranged coaxial pipe groups are arranged in the boiler body, the upper end of the upper annular header is connected with a steam discharge pipe, the coaxial pipe groups comprise a coaxial water pipe and a coaxial smoke pipe, the coaxial smoke pipe is positioned in the coaxial water pipe, the coaxial pipe groups are uniformly arranged along the circumferential direction of the lower annular header, the upper end of the coaxial water pipe is connected with the lower plate of the upper annular header, the lower end of the coaxial water pipe is connected with the upper plate of the lower annular header, the upper end of the coaxial smoke pipe is connected with the upper plate of the upper annular header, and the lower end of the coaxial smoke pipe is connected with the lower plate of the lower annular header; the utility model discloses a design of coaxial nest of tubes ring-type range does not have the boiler drum, has reduced the energy that boiler water capacity and boiler contained greatly, can effectively avoid the boiler to explode the accident.

Description

Environment-friendly energy-saving boiler formed by annularly arranging coaxial tube groups

Technical Field

The utility model relates to a boiler field specifically is an environmental protection and energy saving type boiler of constituteing by coaxial nest of tubes annular arrangement.

Background

The boiler is used as an energy conversion device and mainly has the function of realizing the production and utilization purposes by inputting fuels with chemical energy into the boiler, utilizing the heat released by the fuels during combustion in the boiler and outputting steam, high-temperature water or an organic heat carrier with certain heat energy. Receive the inner structure of current boiler, when current boiler used, the fuel burning was not abundant, and it is of a specified duration to get on the gas moreover for the boiler has the problem that the power consumption is high, it is many and the thermal efficiency is low to discharge fume, finally leads to environmental pollution and the extravagant problem of resource. In addition, the existing boiler has the problem of large potential explosion hazard due to the fact that a large amount of water is stored in the boiler.

Disclosure of Invention

In order to solve the deficiencies existing in the prior art, the utility model provides an environmental protection and energy saving type boiler that constitutes by coaxial nest of tubes annular arrangement aims at improving the problem that the power consumption that current boiler exists is high, discharge fume is many, the thermal efficiency is low and explosion hidden danger is big.

The utility model discloses a realize like this:

an environment-friendly energy-saving boiler formed by annularly arranging coaxial pipe groups comprises a boiler body, wherein an upper annular collecting box, a lower annular collecting box, an upper fire baffle, a lower fire baffle and a plurality of vertically arranged coaxial pipe groups are arranged in the boiler body, the lower annular collecting box is connected with a water inlet and a sewage outlet, the upper end of the upper annular collecting box is connected with a steam discharging pipe, and an air outlet at the upper end of the steam discharging pipe is positioned above the boiler body; the coaxial pipe group comprises a coaxial water pipe and a coaxial smoke pipe, the outer diameter of the coaxial smoke pipe is smaller than the inner diameter of the coaxial water pipe, the coaxial smoke pipe is positioned in the coaxial water pipe, and the coaxial smoke pipe share the same central axis; the coaxial pipe groups are uniformly arranged along the circumferential direction of the lower annular header, the upper ends of the coaxial water pipes are connected with the lower plate of the upper annular header, the lower ends of the coaxial water pipes are connected with the upper plate of the lower annular header, the upper ends of the coaxial smoke pipes are connected with the upper plate of the upper annular header, and the lower ends of the coaxial smoke pipes are connected with the lower plate of the lower annular header; the boiler body is provided with a burner port, and the upper fire baffle and the lower fire baffle are respectively positioned above and below the burner port; the outer side of the boiler body is provided with a burner, an extension pipe of the burner extends into a combustion chamber formed by the coaxial pipe groups in an annular arrangement mode through a burner port, and a flue gas outlet is formed in the upper end of the boiler body.

The coaxial pipe group is provided with a plurality of circles from inside to outside in sequence, and each circle comprises a plurality of coaxial pipe groups.

The upper annular header is connected with a safety pipe, and the safety pipe is provided with a safety valve.

The smoke outlet is connected with a chimney, and the smoke outlet and the chimney are provided with an economizer.

The boiler comprises a boiler body, and is characterized in that a water level meter is arranged on the outer side of the boiler body, and the upper end and the lower end of the water level meter are respectively communicated with an upper annular header and a lower annular header.

The lower extreme of boiler body is provided with the sled dress base, be provided with the water pump on the sled dress base, the water pump links to each other with the water inlet.

The outside of boiler body still is provided with intelligent control ware, intelligent control ware and water level gauge and water pump electrical property link to each other.

The clearance between each coaxial nest of tubes of the most inboard round of boiler body is with bar right angle steel strip welded seal, the upper end of bar right angle steel strip is less than last fire baffle upper end, and the lower extreme is less than lower fire baffle lower extreme, and is higher than annular collection case upper end down.

The upper fire baffle and the lower fire baffle are both formed by pouring refractory concrete.

The boiler body's casing is interior casing, heat preservation and shell body from inside to outside in proper order, the heat preservation is made by the asbestos material, the shell body uses metal material to make.

Has the positive and beneficial effects that: 1. the utility model adopts the design of annular arrangement of coaxial tube groups, and has no boiler drum, thereby greatly reducing the water capacity of the boiler and the energy contained in the boiler, and effectively avoiding the explosion accident of the boiler; 2. the utility model adopts the unique design of high temperature flame and high temperature flue gas circulation mode, effectively increases the heat exchange time and heat exchange area, can produce steam in about 3 minutes, effectively reduces the exhaust temperature and improves the thermal efficiency of the boiler; 3. the utility model takes oil gas as combustion material, thereby avoiding the generation of dust and coal ash; 4. the utility model is provided with a water level gauge, a water pump and an intelligent controller, the intelligent controller is electrically connected with the water level gauge and the water pump, thus realizing the automatic control of the boiler water level in the boiler; 5. the utility model discloses be provided with the relief valve, the relief valve is opened automatically when the boiler internal pressure is too high to reach the purpose that reduces boiler pressure, can effectively avoid the accident of exploding.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

fig. 2 is a schematic external structural view of the present invention;

fig. 3 is a schematic layout view of a circle of coaxial tube sets according to the present invention;

fig. 4 is a schematic diagram of the arrangement of the coaxial pipe group when the present invention is provided with two circles of coaxial pipe groups.

In the figure, the following steps are carried out: the device comprises a steam discharge pipe 1, a heat insulation plate 2, an inner shell 3, a heat insulation layer 4, an outer shell 5, an upper annular header 6, an upper fire baffle 7, a coaxial water pipe 8, a coaxial smoke pipe 9, a coaxial pipe group 10, a combustion chamber 11, a hearth 12, a burner port 13, a lower fire baffle 14, a sewage draining outlet 15, a lower smoke chamber 16, an upper smoke chamber 17, an energy saver 18, a smoke outlet 19, a safety valve 20, a water level gauge 21, a lower annular header 22, a water inlet 23, a skid-mounted base 24, an intelligent controller 25, a fire observation hole 26, a burner 27, a water pump 28 and a chimney 29.

Detailed Description

The following further description is made with reference to the accompanying drawings and specific embodiments.

Examples

Referring to fig. 1 and 2, an environment-friendly and energy-saving boiler formed by annularly arranging coaxial tube groups comprises a boiler body, wherein the boiler body is cylindrical, a shell of the boiler body is sequentially provided with an inner shell 3, a heat insulation layer 4 and an outer shell 5 from inside to outside, the heat insulation layer 4 is made of asbestos materials, the outer shell 5 is made of metal materials, the boiler has the function of protecting the inner shell 3 and the heat insulation layer 4, and the boiler is more attractive.

An upper annular header 6, a lower annular header 22, a heat insulation plate 2, an upper fire baffle 7, a lower fire baffle 14 and a plurality of vertically arranged coaxial tube groups 10 are arranged in the boiler body.

The upper annular header 6 and the lower annular header 22 are both annular, and the upper annular header 6 is located directly above the lower annular header 22. The lower annular header 22 is connected with a water inlet 23 and a sewage draining exit 15, the water inlet 23 is connected with a water pump 28, and a valve is arranged on the sewage draining exit 15. The upper end of the upper annular header 6 is connected with a steam discharge pipe 1, and an air outlet at the upper end of the steam discharge pipe 1 is positioned above the boiler body. The upper annular header 6 is also connected with a safety pipe, and the safety pipe is provided with a safety valve 20. The safety valve 20 is automatically opened when the pressure is too high, so that the purpose of reducing the pressure of the boiler is achieved, and explosion accidents can be effectively avoided.

The coaxial pipe set 10 comprises a coaxial water pipe 8 and a coaxial smoke pipe 9, the outer diameter of the coaxial smoke pipe 9 is smaller than the inner diameter of the coaxial water pipe 8, the coaxial smoke pipe 9 is positioned in the coaxial water pipe 8, and the coaxial smoke pipe and the coaxial water pipe are arranged on the same central axis and can be slightly deviated. So that a certain gap is formed between the inner wall of the coaxial water pipe 8 and the outer wall of the coaxial smoke pipe 9. The plurality of coaxial pipe groups 10 are arranged annularly, i.e. uniformly in the circumferential direction of the upper annular header 6 and the lower annular header 22, and the coaxial pipe groups 10 may be provided with one turn, as shown in fig. 3, or with two turns, as shown in fig. 4, or with three or more turns. The upper end and the lower end of the coaxial water pipe 8 are respectively welded and communicated with the lower plate of the upper annular header 6 and the upper plate of the lower annular header 22. The coaxial smoke tube 9 is sleeved in the middle of the coaxial water tube 8, and the upper end and the lower end of the coaxial smoke tube are respectively welded on the upper plate of the upper annular header 6 and the lower plate of the lower annular header 22. The lower annular header 22 and the gap between the coaxial water pipe 8 and the coaxial smoke pipe 9 are used for storing boiler water to be heated. The outside of boiler body is provided with fluviograph 21, and the upper and lower both ends of fluviograph 21 communicate with upper ring shape header 6 and lower ring shape header 22 respectively, and fluviograph 21 is used for measuring the water level of boiler water.

The boiler is characterized in that a burner port 13 is formed in the boiler body, the upper fire baffle 7 and the lower fire baffle 14 are located above and below the burner port 13 respectively, the heat insulation plate 2 is arranged above the upper fire baffle 7, and the upper fire baffle 7, the lower fire baffle 14 and the heat insulation plate 2 are formed by pouring refractory concrete. The outer side of the boiler body is provided with a burner 27, and an extension pipe of the burner 27 extends into a combustion chamber 11 formed by annularly arranging the coaxial pipe group 10 through a burner port 13. The boiler body is also provided with a fire observation hole 26 for observing the combustion condition of the flame. The upper end of boiler body is provided with exhanst gas outlet 19, and exhanst gas outlet 19 is connected with chimney 29, and exhanst gas outlet 19 and chimney 29 are provided with energy-saving appliance 18, and energy-saving appliance 18 is the condenser that can carry out the heat exchange, and its effect can be retrieved the waste heat of the flue gas that produces after combustor 27 burns, has reduced the waste of heat. The burner 27 of the present invention uses oil gas as the combustion material, thereby avoiding the generation of dust and coal ash.

In order to facilitate the transportation of the boiler, a skid-mounted base 24 is arranged at the lower end of the boiler body. The outside of boiler body still is provided with intelligent control ware 25, and intelligent control ware 25 links to each other with fluviograph 21 and water pump 28 electrical property.

The gaps between the coaxial tube groups 10 of the innermost circle in the boiler body are sealed by welding strip-shaped right-angle steel strips, the upper ends of the strip-shaped right-angle steel strips are lower than the upper ends of the upper fire baffles 7 by about 10cm, the lower ends of the strip-shaped right-angle steel strips are lower than the lower ends of the lower fire baffles 14 by about 3 cm and higher than the upper ends of the lower annular header 22 by about 10 cm. The upper fire baffle 7 and the strip-shaped right-angle steel strip form a 10cm or so gap between the coaxial tube group 10 and the annular arrangement, and a channel for the high-temperature flue gas to flow from the combustion chamber 11 to the hearth 12 is formed. The strip-shaped right-angle steel plate strip and the lower annular header 22 form a gap of about 10cm between the coaxial pipe group 10 and the annular arrangement, so that a channel for high-temperature flue gas to flow from the hearth 12 to the lower smoke chamber 16 is formed.

The utility model discloses a use method and theory of operation: the utility model discloses during the use, at first by intelligent control ware 25 to water feeding pump 28 give-out order, water pump 28 fills the water source into annular header 22 and coaxial water pipe 8 and coaxial tobacco pipe 9 clearance down in through water inlet 23, treat that water level gauge 21 detects the water level and reach back signal and give intelligent control ware 25 when setting for the height, intelligent control ware 25 control water pump 28 stops for water. The burner 27 can be opened manually or the intelligent controller 25 can automatically control the burner 27 to heat the boiler water in the lower annular header 22 and in the gap between the coaxial water pipe 8 and the coaxial smoke pipe 9, and the steam generated by heating is discharged from the steam discharge pipe 1. If the pressure in the boiler is too high, the safety valve 20 can be automatically opened. High-temperature flue gas generated by combustion of the combustor 27 in the combustion chamber 11 firstly flows to the furnace chamber 12 from a 10cm gap between the upper fire baffle 7 and the right-angle steel plate strip in the coaxial pipe group 10, and after heat is released in the furnace chamber 12, flows to the lower smoke chamber 16 from a 10cm gap between the right-angle steel plate strip and the lower annular header 22 in the coaxial pipe group 10, then flows to the upper smoke chamber 17 from the lower smoke chamber 16 through the coaxial smoke pipes 9 arranged in an annular mode, and finally is discharged into the energy saver 18 through the smoke outlet 19, waste heat in the flue gas is recycled under the action of the energy saver 18, and the flue gas after waste heat recovery is finally discharged through the chimney 29.

Therefore, the utility model discloses a design of coaxial nest of tubes 10 annular range does not have the boiler drum, and goes up annular header 6 and lower annular header 22 and is propped by coaxial water pipe 8 and coaxial tobacco pipe 9 drag, has reduced the energy that boiler water capacity and boiler contain greatly, can effectively avoid the boiler to explode the accident. The utility model discloses an unique high temperature flame and high temperature flue gas circulation mode design effectively increase its heat transfer time and heat transfer area, can produce steam about 3 minutes to effectively reduced the exhaust gas temperature, improved the thermal efficiency of boiler.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An environment-friendly energy-saving boiler formed by annularly arranging coaxial tube groups comprises a boiler body and is characterized in that an upper annular header (6), a lower annular header (22), an upper fire baffle (7), a lower fire baffle (14) and a plurality of vertically arranged coaxial tube groups (10) are arranged in the boiler body, the lower annular header (22) is connected with a water inlet (23) and a sewage outlet (15), the upper end of the upper annular header (6) is connected with a steam discharge pipe (1), and an air outlet at the upper end of the steam discharge pipe (1) is positioned above the boiler body; the coaxial pipe group (10) comprises a coaxial water pipe (8) and a coaxial smoke pipe (9), the outer diameter of the coaxial smoke pipe (9) is smaller than the inner diameter of the coaxial water pipe (8), the coaxial smoke pipe (9) is positioned in the coaxial water pipe (8), and the coaxial smoke pipe are arranged in a mode of sharing a central axis; the coaxial pipe groups (10) are uniformly arranged along the circumferential direction of the lower annular header (22), the upper ends of the coaxial water pipes (8) are connected with the lower plate of the upper annular header (6), the lower ends of the coaxial water pipes are connected with the upper plate of the lower annular header (22), the upper ends of the coaxial smoke pipes (9) are connected with the upper plate of the upper annular header (6), and the lower ends of the coaxial smoke pipes are connected with the lower plate of the lower annular header (22); the boiler body is provided with a burner port (13), and the upper fire baffle (7) and the lower fire baffle (14) are respectively positioned above and below the burner port (13); the boiler is characterized in that a combustor (27) is arranged on the outer side of the boiler body, an extension pipe of the combustor (27) extends into a combustion chamber (11) formed by the coaxial pipe groups (10) in an annular arrangement mode through a combustor opening (13), and a smoke outlet (19) is formed in the upper end of the boiler body.

2. An environmentally friendly and energy-saving boiler formed by annularly arranging coaxial tube groups according to claim 1, wherein the coaxial tube groups (10) are sequentially provided with a plurality of circles from inside to outside, and each circle comprises a plurality of coaxial tube groups (10).

3. An eco-friendly energy-saving boiler formed by a ring-shaped arrangement of coaxial pipe groups according to claim 1, wherein the upper ring-shaped header (6) is connected with a safety pipe, and the safety pipe is provided with a safety valve (20).

4. An eco-friendly and energy-saving boiler formed by arranging coaxial tube groups in a ring shape according to claim 1, wherein the flue gas outlet (19) is connected with a chimney (29), and the flue gas outlet (19) and the chimney (29) are provided with an economizer (18).

5. An environment-friendly and energy-saving boiler formed by annularly arranging coaxial pipe groups according to claim 1, characterized in that a water level gauge (21) is arranged on the outer side of the boiler body, and the upper end and the lower end of the water level gauge (21) are respectively communicated with the upper annular header (6) and the lower annular header (22).

6. An environment-friendly energy-saving boiler formed by annularly arranging coaxial pipe groups according to claim 5, characterized in that the lower end of the boiler body is provided with a skid-mounted base (24), the skid-mounted base (24) is provided with a water pump (28), and the water pump (28) is connected with the water inlet (23).

7. An environment-friendly energy-saving boiler formed by annularly arranging coaxial pipe groups according to claim 6, characterized in that an intelligent controller (25) is further arranged on the outer side of the boiler body, and the intelligent controller (25) is electrically connected with the water level gauge (21) and the water pump (28).

8. An environment-friendly energy-saving boiler formed by annular arrangement of coaxial pipe groups according to any one of claims 1 to 7, characterized in that the gap between each coaxial pipe group (10) of the innermost circle in the boiler body is sealed by welding with a strip-shaped right-angle steel strip, the upper end of which is lower than the upper end of the upper fire baffle (7), the lower end of which is lower than the lower end of the lower fire baffle (14) and higher than the upper end of the lower annular header (22).

9. An eco-friendly energy saving boiler constructed by arranging coaxial tube groups in a ring shape according to any one of claims 1 to 7, wherein said upper fire damper (7) and said lower fire damper (14) are each cast of refractory concrete.

10. An environment-friendly and energy-saving boiler formed by annular arrangement of coaxial pipe groups according to any one of claims 1-7, characterized in that the shell of the boiler body comprises an inner shell (3), an insulating layer (4) and an outer shell (5) from inside to outside, the insulating layer (4) is made of asbestos material, and the outer shell (5) is made of metal material.