CN109780720B

CN109780720B - Strong efficient fast heating boiler suitable for various types of biomass fuels

Info

Publication number: CN109780720B
Application number: CN201910048533.XA
Authority: CN
Inventors: 吴初军; 吴知军; 谢祯权; 黄红伟; 刘海亮
Original assignee: Ningde Funing Boiler Co ltd
Current assignee: Ningde Funing Boiler Co ltd
Priority date: 2019-01-18
Filing date: 2019-01-18
Publication date: 2021-01-01
Anticipated expiration: 2039-01-18
Also published as: CN109780720A

Abstract

The invention relates to the technical field of energy-saving and environment-friendly equipment, and discloses a strong efficient fast-heating boiler suitable for various types of biomass fuels, which comprises a boiler body, wherein the boiler body comprises a boiler shell and a boiler furnace, and the boiler furnace is arranged in the boiler shell; a water space is reserved between the pot shell and the furnace pipe; the rear parts of the boiler shell and the furnace pipe are provided with a first cavity and a second cavity in an isolating way through a smoke baffle; a fire grate, a cross water pipe and an air outlet hole are arranged in the furnace pipe; a first smoke pipe, a second smoke pipe and a third smoke pipe are arranged in a water space reserved between the boiler shell and the boiler liner; a smoke exhaust pipe is arranged at the rear part of the first cavity, and a special biomass combustion device or a furnace door can be arranged at the front part of the furnace pipe; the invention has the characteristics of saving resources and reducing cost.

Description

Strong efficient fast heating boiler suitable for various types of biomass fuels

Technical Field

The invention relates to the technical field of energy-saving and environment-friendly equipment, in particular to a powerful efficient fast-heating boiler suitable for various types of biomass fuels.

Background

For a long time, most of the fuel used by boilers in China is mainly coal, and the problems of non-regeneration, environmental pollution and the like exist; the biomass fuel combustion has the characteristics of zero emission (the biomass fuel combustion is a product of plant photosynthesis, and carbon dioxide generated by combustion is equal to carbon dioxide required by fuel generation) and reproducibility, so in recent years, the development and utilization of biomass boilers are gradually increased, but as the industry is in extensive type, disordered development, low technical content and high cost, boiler users have resistance to the use of the biomass fuel; however, the coal-fired boiler in the prior art has the problems of high use and production cost and low energy utilization rate, so that a novel boiler suitable for marketing is urgently to be developed and meets the requirements of boiler users.

Disclosure of Invention

In view of the above, the present invention provides a strong, efficient and quick-heating boiler suitable for various types of biomass fuels.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a powerful high-efficient fast hot boiler of applicable polymorphic type biomass fuel, includes the boiler body, its characterized in that: a conveying and collecting mechanism is arranged below the boiler body; the boiler body comprises a boiler shell and a boiler liner, and the boiler liner is arranged in the boiler shell; a water space is reserved between the pot shell and the furnace pipe; the rear parts of the boiler shell and the furnace pipe are provided with a first cavity and a second cavity in an isolating way through a smoke baffle;

the furnace liner is internally provided with a fire grate, a crossed water pipe and air outlet holes, the fire grate is arranged below the crossed water pipe, four end parts of the crossed water pipe are connected to the inner wall of the furnace liner, and the air outlet holes are distributed on the inner wall of the furnace liner and are distributed in a bilateral symmetry mode;

a water space reserved between the boiler shell and the boiler liner is filled with liquid water and is provided with a first smoke pipe, a second smoke pipe and a third smoke pipe; a connecting pipe extends out of the side wall of the first smoke pipe and is connected with an air outlet hole formed in the furnace pipe; one end of the first smoke pipe is communicated with the second cavity; one end of the second smoke pipe is communicated with the second cavity, and the other end of the second smoke pipe is connected with the side wall of the third smoke pipe through a connecting flange; the third smoke tube is bent, and the end part which is not connected with the second smoke tube is communicated with the first cavity;

the top of the pot shell is provided with a water feeding pipe, and a water valve is arranged on the water feeding pipe; and a smoke exhaust pipe is arranged at the rear part of the first cavity.

Preferably, an auxiliary sliding plate with one surface fixedly connected with the inner wall of the furnace pipe is symmetrically arranged below the fire grate.

Preferably, the cross water pipe is in an X shape with the large end at the lower part and the small end at the upper part in the furnace pipe.

Preferably, the rear part of the second cavity is provided with an access hole communicated with the outside, and a sealing bin door is mounted on the access hole through a screw.

Preferably, the transportation and collection mechanism comprises a transportation box and a collection box; the transportation box is tightly connected to the outer wall of the bottom of the pot shell; a driving wheel, a driven wheel, a supporting seat, a cinder conveying crawler and a driving motor are arranged in the conveying box; the driving wheel is arranged at the front part of the driven wheel, the driving wheel and the driven wheel are both arranged in the transport box through a supporting seat, and the driving wheel is in transmission connection with the driving motor; the cinder conveying crawler belt is arranged on the driving wheel and the driven wheel; the collecting box is arranged at the rear part of the driven wheel, and handles are arranged on the outer walls of the two sides of the collecting box.

Preferably, the width of the cinder conveying track is larger than the horizontal distance between the auxiliary sliding plates on the two sides of the furnace pipe, and the height and the position of the cinder conveying track can ensure that cinder falling from the fire grate can just fall onto the top surface of the cinder conveying track.

Preferably, the front wall of the transport case is provided with a replacement opening for replacing the driving motor, and the replacement opening is provided with a baffle plate through a screw.

Preferably, a base is arranged below the transportation and collection mechanism; the bottom of the collecting box is provided with a chute, and a sliding block is arranged on the position of the base corresponding to the chute on the collecting box; the collecting box is connected to the base through a sliding groove and a sliding block in a sliding mode.

Preferably, a vibration motor and a cinder screen are further arranged in the transportation box; the cinder screen is arranged above the collecting box, and two ends of the cinder screen are respectively connected with the supporting seat and the rear wall of the transport box; the vibrating motor is arranged on the rear wall of the transport box, and the eccentric shaft end is connected with the coal cinder screen; the rear wall of the transport box is also provided with a recovery opening for taking out coal blocks on the cinder screen, and the recovery opening is provided with a sealing plate through a screw.

Preferably, the rear part of the smoke exhaust pipe is connected with an exhaust device; the front part of the furnace pipe can be provided with a special biomass combustion device or a furnace door.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the crossed water pipe is arranged in the furnace pipe, and the density difference is generated between the heated crossed water pipe and the outside, so that strong water circulation can be formed, and an excellent heat exchange effect is achieved.

2. According to the invention, the first smoke pipe, the second smoke pipe and the third smoke pipe are arranged in the water space, so that the retention time of the smoke in the water space can be prolonged, the heat exchange space of the smoke to liquid water in the water space is prolonged, the heat energy of the smoke is fully utilized, the loss of smoke exhaust is reduced, and the resources are saved.

3. According to the invention, the smoke baffle plate is arranged, so that smoke in the second cavity can not be emitted to the outside, the external environment is influenced, and meanwhile, the heat loss of the smoke in the second cavity can be reduced.

4. According to the invention, the conveying and collecting mechanism is arranged, so that the coal cinder falling from the fire grate can be automatically conveyed and collected, and because the coal cinder falls to the bottom of the furnace pipe from the fire grate when a special biomass combustion device (not shown) is not connected in the invention and the coal cinder is used for combustion, the coal cinder generated by the combustion of the coal cinder needs to be manually climbed into the furnace pipe for cleaning, the labor intensity is increased, and the safety risk is realized; therefore, a conveying and collecting mechanism is added, so that the cinder falling from the fire grate can be conveyed into the collecting box by the cinder conveying crawler belt, and the purposes of reducing the labor intensity of workers and protecting the safety of the workers are achieved.

5. The invention further achieves the purpose of saving resources by arranging the vibrating motor and the cinder screen; the cinder conveyed by the cinder conveying crawler falls onto the cinder screen, the cinder screen is shaken by the operation of the vibrating motor, so that the completely combusted cinder falls into the collecting box for collection, the incompletely combusted coal blocks cannot be retained on the cinder screen due to large volume, and the coal blocks on the cinder screen are taken away through the recycling port after a certain time for combustible materials; therefore, the cost can be reduced, and the resources can be saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a first cross-sectional view of the present invention;

FIG. 3 is a second cross-sectional view of the present invention;

FIG. 4 is a sectional view taken along line A-A;

FIG. 5 is an enlarged view at A;

fig. 6 is an enlarged view at B.

Reference numerals: 1. a boiler body; 11. a pot shell; 12. a furnace pipe; 121. crossed water pipes; 122. an air outlet; 123. an auxiliary slide plate; 13. a water feeding pipe; 131. a water valve; 14. a smoke exhaust pipe; 15. a grate; 16. a baffle plate; 17. a first smoke tube; 18. a second smoke tube; 19. a third smoke tube; 2. a transport collection mechanism; 21. a collection box; 211. a handle; 212. a chute; 22. a driving wheel; 23. a drive motor; 24. a supporting seat; 25. a cinder conveying crawler; 26. a driven wheel; 27. a vibration motor; 28. a coal cinder screen; 29. a transport case; 3. a machine base; 31. a slider; 4. a smoke barrier; 41. sealing the bin gate; 5. liquid water; 6. an access hole; 7. a recovery port; 8. a first cavity; 9. a second cavity.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

Example 1: the present embodiment described with reference to fig. 1, 2 and 4 provides a strong, efficient and fast-heating boiler applicable to various types of biomass fuels, comprising a boiler body 1; the boiler body 1 comprises a boiler shell 11 and a boiler furnace 12, and the boiler furnace 12 is arranged in the boiler shell 11; a water space is reserved between the boiler shell 11 and the furnace pipe 12; the rear parts of the boiler shell 11 and the furnace pipe 12 are provided with a first cavity 8 and a second cavity 9 in an isolation way through a smoke baffle 4.

The furnace pipe 12 is internally provided with a fire grate 15, a cross water pipe 121 and an air outlet 122, and the fire grate 15 is arranged below the cross water pipe 121; the cross water pipe 121 is in an X shape with a big end at the lower part and a small end at the upper part in the furnace pipe 12, and four end parts of the cross water pipe 121 are connected to the inner wall of the furnace pipe 12; the air outlets 122 are distributed on the inner wall of the furnace pipe 12 and are distributed in a left-right symmetrical manner.

The water space between the boiler shell 11 and the boiler furnace 12 is filled with liquid water and is provided with a first smoke tube 17, a second smoke tube 18 and a third smoke tube 19; the side wall of the first smoke pipe 17 extends out of a connecting pipe and is connected with an air outlet 122 arranged on the furnace pipe 12; one end of the first smoke tube 17 is communicated with the second cavity 9; one end of the second smoke tube 18 is communicated with the second cavity 9, and the other end is connected with the side wall of the third smoke tube 19 through a connecting flange; the third smoke tube 19 is bent, and the end part which is not connected with the second smoke tube 18 is communicated with the first cavity 8.

A water feeding pipe 13 is arranged at the top of the pot shell 11, and a water valve 131 is arranged on the water feeding pipe 13; the front part of the furnace pipe 12 is provided with a special biomass combustion device (not shown in the figure), and the special biomass combustion device is connected with the furnace pipe 12 through a connecting flue and provides heating smoke for the furnace pipe 12; a smoke exhaust pipe 14 is arranged at the rear part of the first cavity 8, an exhaust device (not shown in the figure) is connected at the rear part of the smoke exhaust pipe 14, and the exhaust device is connected with the smoke exhaust pipe 14 through a connecting pipeline; the rear part of the second cavity 9 is provided with an access hole 6 communicated with the outside, a sealing bin door 41 is arranged on the access hole 6 through a screw, and the access hole 6 is used for an operator to enter the second cavity 9 to overhaul the smoke baffle 4 in the second cavity 9.

Therefore, the cross water pipe 121 is heated by the heating smoke generated by the special biomass combustion device, and the density difference is generated between the heated cross water pipe 121 and the outside, so that strong water circulation can be formed, and an excellent heat exchange effect is achieved; the exhaust device performs exhaust work, so that the heated flue gas generated by the special biomass combustion device enters the air outlet 122, then sequentially flows through the first smoke tube 17, the second cavity 9, the second smoke tube 18, the third smoke tube 19 and the first cavity 8, and is finally discharged by the smoke exhaust tube 14, and the arrangement of the first smoke tube 17, the second smoke tube 18 and the third smoke tube 19 can prolong the retention time of the flue gas in the water space, prolong the heat exchange space of the flue gas on the liquid water 5 in the water space, fully utilize the heat energy of the flue gas, reduce the loss of the exhaust smoke and save resources; the smoke baffle 4 arranged in the second cavity 9 can not only prevent the smoke in the second cavity 9 from being emitted to the outside, thereby influencing the external environment, but also reduce the heat loss of the smoke in the second cavity 9 and the heat supply cost.

Through the arrangement, the biomass fuel can be used for a special biomass combustion device, and the biomass fuel can be obtained locally, so that the biomass fuel is convenient to supply and meets the requirements of green, low carbon and environmental protection; meanwhile, the arrangement of the cross water pipe 121, the first smoke pipe 17, the second smoke pipe 18, the third smoke pipe 19, the first cavity 8, the second cavity 9 and the smoke baffle 4 ensures that the resource utilization rate of the biomass boiler is higher, the heat supply cost is lower, compared with a biomass boiler in the prior art, the biomass boiler has the advantages that the energy-saving effect exceeds 20 percent, the heat supply cost is reduced by about 15 percent, and the biomass boiler is worthy of popularization.

Example 2: the present embodiment described with reference to fig. 1, 2 and 4 provides a strong, efficient and fast-heating boiler applicable to various types of biomass fuels, comprising a boiler body 1; the boiler body 1 comprises a boiler shell 11 and a boiler furnace 12, and the boiler furnace 12 is arranged in the boiler shell 11; a water space is reserved between the boiler shell 11 and the furnace pipe 12; the rear parts of the boiler shell 11 and the furnace pipe 12 are provided with a first cavity 8 and a second cavity 9 in an isolation way through a smoke baffle 4.

A water feeding pipe 13 is arranged at the top of the pot shell 11, and a water valve 131 is arranged on the water feeding pipe 13; a bin door (not shown) is arranged at the front part of the furnace pipe 12 and is connected in front of the furnace pipe 12 through a movable connection mode in the prior art, such as a hinge, so that smoke generated when coal is fired in the furnace pipe 12 is prevented from overflowing the furnace pipe 12 and polluting the external environment; a smoke exhaust pipe 14 is arranged at the rear part of the first cavity 8, an exhaust device (not shown in the figure) is connected at the rear part of the smoke exhaust pipe 14, and the exhaust device is connected with the smoke exhaust pipe 14 through a connecting pipeline; the rear part of the second cavity 9 is provided with an access hole 6 communicated with the outside, a sealing bin door 41 is arranged on the access hole 6 through a screw, and the access hole 6 is used for an operator to enter the second cavity 9 to overhaul the smoke baffle 4 in the second cavity 9.

Thus, the fire grate 15 burns coal, then the bin gate is closed, the cross water pipe 121 is heated by smoke generated by the fire coal, and the smoke is difficult to overflow the furnace pipe 12 to enter the external environment due to the closing of the bin gate; after being heated, the cross water pipe 121 has density difference with the outside, and can form strong water circulation, so that an excellent heat exchange effect is achieved; the exhaust device performs exhaust work, so that the heated flue gas generated by the special biomass combustion device enters the air outlet 122, then sequentially flows through the first smoke tube 17, the second cavity 9, the second smoke tube 18, the third smoke tube 19 and the first cavity 8, and is finally discharged by the smoke exhaust tube 14, and the arrangement of the first smoke tube 17, the second smoke tube 18 and the third smoke tube 19 can prolong the retention time of the flue gas in the water space, prolong the heat exchange space of the flue gas on the liquid water 5 in the water space, fully utilize the heat energy of the flue gas, reduce the loss of the exhaust smoke and save resources; the smoke baffle 4 arranged in the second cavity 9 can not only prevent the smoke in the second cavity 9 from being emitted to the outside, thereby influencing the external environment, but also reduce the heat loss of the smoke in the second cavity 9 and the heat supply cost.

Through the arrangement, the energy-saving boiler is high in resource utilization rate, simple in structure and low in equipment maintenance cost, and compared with a coal-fired boiler in the prior art, the energy-saving effect is over 25 percent.

Example 3: the embodiment 2 has some disadvantages in use, and because the coal cinder generated by the coal briquette combustion falls to the bottom of the furnace pipe 12 from the fire grate 15 when the coal briquette is used for combustion, the coal cinder needs to climb into the furnace pipe 12 manually for cleaning, the labor intensity is increased, and the safety risk is caused; therefore, some improvements are added to the embodiment 2.

Referring to fig. 3, 5 and 6, an auxiliary sliding plate 123 with one side fixedly connected with the inner wall of the furnace pipe 12 is symmetrically arranged below the fire grate 15; a transportation and collection mechanism 2 is arranged below the boiler body 1, and the transportation and collection mechanism 2 comprises a transportation box 29 and a collection box 21; the transport box 29 is tightly connected to the outer wall of the bottom of the pot shell 11; the inside of the transport box 29 is provided with a driving wheel 22, a driven wheel 26, a supporting seat 24, a cinder conveying crawler 25 and a driving motor 23; the driving wheel 22 is arranged at the front part of the driven wheel 26, the driving wheel 22 and the driven wheel 26 are both arranged in the transportation box 29 through a supporting seat 24, and the driving wheel 22 is in belt transmission connection with the driving motor 23; the cinder conveying crawler 25 is arranged on the driving wheel 22 and the driven wheel 26, the width of the cinder conveying crawler 25 is larger than the horizontal distance between the auxiliary sliding plates 123 at the two sides of the furnace pipe 12, and the height and the position of the cinder conveying crawler 25 can ensure that cinder falling from the fire grate 15 can just fall onto the top surface of the cinder conveying crawler 25; the collecting box 21 is arranged at the rear part of the driven wheel 26, and handles 211 are arranged on the outer walls of the two sides of the collecting box 21; a base 3 is arranged below the transportation and collection mechanism 2; the bottom of the collecting box 21 is provided with a chute 212, and the base 3 is provided with a slide block 31 at the position corresponding to the chute 212 on the collecting box 21; the collecting box 21 is connected on the base 3 in a sliding way through a chute 212 and a slide block 31; the front wall of the transport box 29 is provided with a replacing opening for replacing the driving motor 23, the replacing opening is provided with a baffle 16 through a screw, and the driving motor 23 can be replaced through the replacing opening when the driving motor 23 is damaged or the power is inappropriate.

Therefore, the cinder dropped from the fire grate 15 falls onto the cinder conveying crawler 25 with the assistance of the auxiliary sliding plate 123, the driving wheel 22 is driven by the driving motor 23 to rotate, the driven wheel 26 rotates in a matching manner, so that the cinder conveying crawler 25 rotates to drive the cinder to be conveyed towards the collecting box 21, and the cinder falls into the collecting box 21 under the action of gravity after being conveyed to the driven wheel 26, thereby facilitating the collection of workers and performing uniform treatment; the workers do not need to climb into the furnace pipe 12 for cleaning, the labor intensity of the workers is reduced, and the safety of the workers is protected.

Example 4: the coal blocks are burnt, the coal blocks are not completely burnt, but enter the collecting box 21 for collection treatment through the coal cinder conveying crawler 25, and the coal blocks entering the collecting box 21 are mixed with the coal cinder and are not easily picked out, so that the coal blocks are wasted, and the production cost is increased; therefore, some improvements are added to the embodiment 3.

Referring to fig. 3, a vibration motor 27 and a cinder screen 28 are also arranged in the transportation box 29; the cinder screen 28 is arranged above the collecting box 21, and two ends of the cinder screen 28 are respectively connected with the supporting seat 24 and the rear wall of the transport box 29; the vibration motor 27 is arranged on the rear wall of the transport box 29, and the eccentric shaft end is connected with the cinder screen 28; the rear wall of the transport box 29 is also provided with a recovery port 7 for taking out the coal blocks on the coal cinder screen 28, and a sealing plate is arranged on the recovery port 7 through a screw.

Therefore, the cinder conveyed by the cinder conveying crawler 25 falls onto the cinder screen 28, the vibrating motor 27 works to shake the cinder screen 28, so that the completely combusted cinder falls into the collecting box 21 for collection, the incompletely combusted cinder cannot stay on the cinder screen 28 through the cinder screen 28 due to large volume, and the cinder on the cinder screen 28 is taken away through the recovery port 7 after a certain time for use as a combustible material; therefore, the cost can be reduced, and the resources can be saved.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention as claimed.

Claims

1. The utility model provides a powerful high-efficient fast hot boiler of applicable polymorphic type biomass fuel, includes the boiler body, its characterized in that: a conveying and collecting mechanism is arranged below the boiler body; the boiler body comprises a boiler shell and a boiler liner, and the boiler liner is arranged in the boiler shell; a water space is reserved between the pot shell and the furnace pipe; the rear parts of the boiler shell and the furnace pipe are provided with a first cavity and a second cavity in an isolating way through a smoke baffle;

the transportation and collection mechanism comprises a transportation box and a collection box; the transportation box is tightly connected to the outer wall of the bottom of the pot shell; a driving wheel, a driven wheel, a supporting seat, a cinder conveying crawler and a driving motor are arranged in the conveying box; the driving wheel is arranged at the front part of the driven wheel, the driving wheel and the driven wheel are both arranged in the transport box through a supporting seat, and the driving wheel is in transmission connection with the driving motor; the cinder conveying crawler belt is arranged on the driving wheel and the driven wheel; the collecting box is arranged at the rear part of the driven wheel, and handles are arranged on the outer walls of the two sides of the collecting box;

the furnace liner is internally provided with a fire grate, a crossed water pipe and air outlet holes, the fire grate is arranged below the crossed water pipe, four end parts of the crossed water pipe are connected to the inner wall of the furnace liner, the crossed water pipe is in an X shape with a large end at the lower part and a small end at the upper part in the furnace liner, and the air outlet holes are distributed on the inner wall of the furnace liner and are distributed in a bilateral symmetry manner;

a vibration motor and a cinder screen are also arranged in the transport box; the cinder screen is arranged above the collecting box, and two ends of the cinder screen are respectively connected with the supporting seat and the rear wall of the transport box; the vibrating motor is arranged on the rear wall of the transport box, and the eccentric shaft end is connected with the coal cinder screen; the rear wall of the transport box is also provided with a recovery port for taking out coal blocks on the coal cinder screen, and the recovery port is provided with a sealing plate through a screw;

2. The powerful, efficient and fast-heating boiler applicable to various types of biomass fuels according to claim 1, is characterized in that: and auxiliary sliding plates with one surfaces fixedly connected with the inner wall of the furnace pipe are symmetrically arranged below the fire grate.

3. The boiler of claim 2, wherein the boiler is adapted to be used for various types of biomass fuels, and comprises: and the rear part of the second cavity is provided with an access hole communicated with the outside, and a sealing bin door is arranged on the access hole through a screw.

4. The powerful, efficient and fast-heating boiler applicable to various types of biomass fuels according to claim 3, wherein: the width of the cinder conveying crawler is larger than the horizontal distance between the auxiliary sliding plates on the two sides of the furnace pipe, and the height and the position of the cinder conveying crawler can ensure that cinder falling from the fire grate can just fall onto the top surface of the cinder conveying crawler.

5. The powerful, efficient and fast-heating boiler applicable to various types of biomass fuels according to claim 4, wherein: be equipped with the change mouth that is used for changing driving motor on the antetheca of transport case, there is the baffle through the screw installation on the change mouth.

6. The powerful, efficient and fast-heating boiler applicable to various types of biomass fuels according to any one of claims 1 to 5, characterized in that: a base is arranged below the transportation and collection mechanism; the bottom of the collecting box is provided with a chute, and a sliding block is arranged on the position of the base corresponding to the chute on the collecting box; the collecting box is connected to the base through a sliding groove and a sliding block in a sliding mode.

7. The powerful, efficient and fast-heating boiler applicable to various types of biomass fuels according to any one of claims 1 to 5, characterized in that: the rear part of the smoke exhaust pipe is connected with an exhaust device; the front part of the furnace pipe is provided with a special biomass combustion device or a furnace door.