CN214095573U

CN214095573U - Boiler waste heat recovery device

Info

Publication number: CN214095573U
Application number: CN202022887485.4U
Authority: CN
Inventors: 尹巍
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-08-31
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a boiler waste heat recovery device, which comprises a water storage tank and an insulation can, the water storage tank is arranged in the heat preservation tank, the water storage pipe is fixedly arranged in the water storage tank, the water storage pipe is spirally distributed in the water storage tank, a water inlet is arranged at one end of the water storage pipe, the water inlet extends out of the heat storage box, a heating flue gas pipe is spirally wound on the water storage pipe along the extension direction of the water storage pipe, the lower end of the heating flue gas pipe is connected with an air inlet pipe, the air inlet pipe extends out of the heat storage box, the air inlet pipe is connected with the filtering unit and the air inlet pump in sequence, the upper end of the heating flue gas pipe is communicated with the heat preservation box, the insulation can lower extreme is provided with the gas outlet, be provided with the ooff valve on the gas outlet, the water storage box lower extreme is provided with the delivery port, the delivery port stretches out outside the insulation can, and is provided with the ooff valve on the delivery port.

Description

Boiler waste heat recovery device

Technical Field

The utility model relates to a waste heat recovery technical field, concretely relates to boiler waste heat recovery device.

Background

Currently, the main problems of low utilization efficiency, poor economic benefit and high ecological environment pressure still exist in energy utilization in China, and energy conservation, emission reduction, energy consumption reduction and energy comprehensive utilization rate improvement are important contents of energy development strategy planning, are fundamental ways for solving energy problems in China and are in a priority development status. The aims of realizing energy conservation and emission reduction and improving the energy utilization rate mainly depend on the industrial field. In china, which is in the middle and later stages of industrialization, industry is the main energy consumption field and is also the main emission source of pollutants. Except for the factors that the production process is relatively laggard and the industrial structure is unreasonable, the low utilization rate of industrial waste heat and the insufficient comprehensive utilization of energy are important reasons for high energy consumption, the utilization rate of the energy in China is only about 33 percent, which is about 10 percent lower than that of developed countries, and at least 50 percent of industrial energy consumption is directly abandoned by waste heat in various forms. Therefore, it is necessary to recover and utilize the waste heat generated from the boilers of various industrial facilities.

The waste heat refers to sensible heat and latent heat which are not reasonably utilized in the original design in the energy consumption device of the put-in-operation industrial enterprise due to the limitations of factors such as history, technology, concept and the like. The method comprises the steps of high-temperature waste gas waste heat, cooling medium waste heat, waste steam waste water waste heat, high-temperature product and slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like.

A part of heat of the existing biomass boiler is easily discharged along with waste gas, so that the utilization efficiency of the heat of the boiler is reduced, the waste gas easily pollutes the environment, and the personal safety of operators is harmed. And current boiler waste heat recovery device is when retrieving the waste heat, and water and heat pipe area of contact are limited, lead to the water heating time to the water tank in need very long, simultaneously, current waste heat recovery device is because the flue gas is very fast in the exchange tube, and heat exchange time is short, leads to most waste heat not yet to have come to exchange just to be discharged to cause the waste heat waste.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a boiler waste heat recovery device with strong practicability and good use effect.

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

the utility model provides a boiler waste heat recovery device, including water storage box and insulation can, the water storage box sets up in the insulation can, the water storage box internal fixation is provided with the water storage pipe, the water storage pipe is the spiral and distributes in the water storage box, water storage pipe one end is provided with the water inlet, the water inlet stretches out the insulation can outside, it is around being equipped with the heating flue gas pipe to follow the water storage pipe extending direction spiral on the water storage pipe, heating flue gas pipe lower extreme is connected with the intake pipe, the intake pipe stretches out outside the insulation can, and the intake pipe connects gradually with filter unit and air inlet pump, heating flue gas pipe upper end is linked together with the insulation can, the insulation can lower extreme is provided with the gas outlet, be provided with the ooff valve on the gas outlet, the water storage box lower extreme is provided with the delivery port, the delivery port stretches out outside the insulation can, and be provided with the ooff valve on the delivery port.

The further optimization of this technical scheme, the water storage pipe is spiral distribution in the water storage box in vertical direction, and the water inlet setting is at the water storage pipe lower extreme, and the water storage pipe upper end is linked together with the water storage box.

Further optimization of this technical scheme, appeal states filter unit and includes the rose box, and the rose box left side is passed through the intake pipe and is connected with the air pump, and the rose box internal fixation is provided with the active carbon piece.

The further optimization of this technical scheme, be provided with the filter screen intermediate layer along intake pipe extending direction equidistance in the rose box, the vertical setting of filter screen intermediate layer, and the filter screen intermediate layer periphery all with rose box inner wall fixed connection, activated carbon block packs in the filter screen intermediate layer, and activated carbon evenly is provided with the filtration pore soon.

The further optimization of this technical scheme, the filter unit includes the desulfurization case well, and desulfurization case one side is linked together through intake pipe and rose box, and the desulfurization case opposite side is linked together through intake pipe and heating flue gas pipe, is provided with desulfurization portion in the desulfurization case.

According to the further optimization of the technical scheme, the heat insulation layer is fixedly arranged on the inner wall of the heat insulation box and is made of a heat insulation foaming material.

The further optimization of this technical scheme still includes the water pump, and the water pump output is linked together with the inlet tube.

Compared with the prior art the utility model discloses following beneficial effect has: the utility model discloses a set up the water storage pipe that is the spiral and distributes in vertical direction in the water storage box to along the water storage pipe extending direction around establishing the heating flue gas pipe on the water storage pipe, make heating flue gas pipe and water storage pipe can be simultaneously to the water in the water storage pipe and the water storage box in through the contact heating. The contact area between the water storage pipe and the heating flue gas pipe and water is increased, and the heating efficiency is improved. And the flue gas exhausted after passing through the heating flue gas pipe can be introduced into the heat insulation box, so that the flue gas with residual temperature can play a certain heat insulation role. The waste heat of the boiler is fully utilized. The utility model discloses simple structure is convenient to use, has improved heating efficiency promptly, and the rate of recovery of boiler waste heat has fine practicality and suitability.

Drawings

FIG. 1 is a side sectional view of a boiler waste heat recovery device;

fig. 2 is a schematic cross-sectional view of a filter box of a boiler waste heat recovery device.

In the figure: insulation can 1, water storage tank 2, heating flue gas pipe 3, delivery port 4, fixing base 5, desulfurization case 6, rose box 7, air pump 8, intake pipe 9, water inlet 10, water storage pipe 11, filter screen intermediate layer 12, activated carbon piece 13.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, a side sectional view of a boiler waste heat recovery device is shown. The utility model provides a boiler waste heat recovery device, includes water storage box 2, fixing base 5, water pump and insulation can 1, insulation can 1 is fixed to be set up on fixing base 5, and the fixed heat preservation that is provided with on insulation can 1 inner wall, the heat preservation adopts thermal-insulated expanded material. The water storage tank 2 is arranged in the heat preservation tank 1, the water storage pipe 11 is fixedly arranged in the water storage tank 2, the water storage pipe 11 is spirally distributed in the water storage tank 2 in the vertical direction, the lower end of the water storage pipe 11 is provided with a water inlet 10, and the water inlet 10 can extend out of the heat preservation tank 1 and is connected with the output of the water pump. The upper end of the water storage pipe 11 is communicated with the water storage tank 2. The water pump can pump water into the water storage pipe 11, and the water in the water storage pipe 11 can flow into the water storage tank 2 from the upper end of the water storage pipe 11.

The water storage pipe 11 is provided with a heating flue gas pipe 3 spirally wound along the extension direction of the water storage pipe 11, the lower end of the heating flue gas pipe 3 is connected with an air inlet pipe 9, the air inlet pipe 9 can extend out of the heat preservation box 1, the input end of the air inlet pipe 9 is communicated with the output end of the desulfurization box 6, the input end of the desulfurization box 6 is communicated with the output end of the filter box 7 through the air inlet pipe 9, the input end of the filter box 7 is connected with the output end of an air pump 8 through the air inlet pipe 9, and the input end of the air pump 8 is communicated with smoke outlet equipment of a boiler. Be provided with desulfurization portion in the desulfurization case 6, desulfurization portion can carry out the desulfurization to the flue gas. The upper end of the heating flue gas pipe 3 is communicated with the heat preservation box 1. The lower end of the heat preservation box 1 is provided with an air outlet, and a switch valve is arranged on the air outlet. The lower end of the water storage tank 2 is provided with a water outlet 4, the water outlet 4 extends out of the heat insulation box 1, and a switch valve is arranged on the water outlet 4. The water storage pipe 11 and the heating smoke pipe 3 are both made of metal materials.

Referring to fig. 2, a schematic cross-sectional view of a filter box of a boiler waste heat recovery device is shown, wherein filter screen interlayers 12 are equidistantly arranged in the filter box 7 along the extending direction of an air inlet pipe 9, the filter screen interlayers 12 are vertically arranged, the periphery of each filter screen interlayer 12 is fixedly connected with the inner wall of the filter box 7, activated carbon blocks 13 are filled in the filter screen interlayers 12, and filter holes are uniformly formed in the activated carbon blocks. Harmful dust impurities and the like carried in the filtered flue gas can be filtered through the activated carbon block 13.

The utility model discloses when using, open the gas outlet of 1 lower extreme in insulation can, with the play cigarette equipment intercommunication of 8 inputs of air pump and boiler, the play cigarette equipment of boiler will have thermal flue gas and let in heating flue gas pipe 3 in, with the cold air discharge back in heating flue gas pipe 3 and the insulation can 1, close insulation can 1's gas outlet. When the flue gas passes through the inside of the filter box 7, the activated carbon blocks 13 in the filter box 7 adsorb dust impurities in the flue gas, so that the air pollution is prevented. The flue gas can be treated by desulfurization flow through the desulfurization box 6. The water is pumped into the water inlet 10 by a water pump and pumped into the water storage pipe 11 through the water inlet 10. The heating flue gas pipe 3 arranged on the water storage pipe 11 generates temperature after high-temperature flue gas is introduced, the water storage pipe 11 is heated, water is pumped into the water storage pipe 11 through the air pump 8, after the water storage pipe 11 is filled with the high-temperature flue gas, the water enters the water storage tank 2 and is in direct contact with the heating flue gas pipe 3, and at the moment, the heating flue gas pipe 3 can heat the water in the water storage tank 2 and the water storage pipe 11 simultaneously. After a period of time, the water storage pipe 11 generates high temperature under the heating of the heating flue gas pipe 3. At this time, the heating flue pipe 3 and the water storage pipe 11 can heat the water in the water storage pipe 11 and the water in the water storage tank 2 simultaneously through contact. The heating efficiency is improved. The flue gas can be continuously introduced into the heating flue gas pipe 3 and enters the heat insulation box 1 through the heating flue gas pipe 3, and the flue gas with residual heat can play a certain heat insulation role at the moment.

The utility model discloses a set up the water storage pipe 11 that is the spiral and distributes in vertical direction in water storage box 2 to on water storage pipe 11 along 11 extending direction of water storage pipe around establishing heating flue gas pipe 3, make heating flue gas pipe 3 and water storage pipe 11 can be simultaneously to the water in 11 and the water storage box 2 in the water storage pipe through the contact heating. The contact area between the water storage pipe 11 and the heating flue gas pipe 3 and water is increased, and the heating efficiency is improved. And the flue gas exhausted after passing through the heating flue gas pipe 3 can be introduced into the heat insulation box 1, and the flue gas with residual temperature can play a certain heat insulation role. The waste heat of the boiler is fully utilized. The utility model discloses simple structure is convenient to use, has improved heating efficiency promptly, and the rate of recovery of boiler waste heat has fine practicality and suitability.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.

Although the embodiments have been described, once the basic inventive concept is known, other changes and modifications can be made to the embodiments by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all the modifications of the equivalent structure or equivalent flow path using the contents of the specification and the drawings of the present invention, or directly or indirectly using other related technical fields are also included in the scope of the present invention.

Claims

1. The utility model provides a boiler waste heat recovery device, its characterized in that, includes water storage box and insulation can, the water storage box sets up in the insulation can, the water storage box internal fixation is provided with the water storage pipe, the water storage pipe is the spiral and distributes in the water storage box, water storage pipe one end is provided with the water inlet, the water inlet stretches out the insulation can outside, it is equipped with the heating flue gas pipe around becoming the spiral along water storage pipe extending direction on the water storage pipe, heating flue gas pipe lower extreme is connected with the intake pipe, the intake pipe stretches out outside the insulation can, and the intake pipe connects gradually with filter unit and air intake pump, heating flue gas pipe upper end is linked together with the insulation can, the insulation can lower extreme is provided with the gas outlet, be provided with the ooff valve on the gas outlet, the water storage box lower extreme is provided with the delivery port, the delivery port stretches out outside the insulation can, and is provided with the ooff valve on the delivery port.

2. The boiler waste heat recovery device according to claim 1, wherein the water storage pipes are spirally distributed in the water storage tank in a vertical direction, the water inlets are arranged at the lower ends of the water storage pipes, and the upper ends of the water storage pipes are communicated with the water storage tank.

3. The boiler waste heat recovery device according to claim 1, wherein the filtering unit comprises a filtering box, the left side of the filtering box is connected with an air pump through an air inlet pipe, and an activated carbon block is fixedly arranged in the filtering box.

4. The boiler waste heat recovery device according to claim 3, wherein filter screen interlayers are arranged in the filter box at equal intervals along the extending direction of the air inlet pipe, the filter screen interlayers are vertically arranged, the peripheries of the filter screen interlayers are fixedly connected with the inner wall of the filter box, the activated carbon blocks are filled in the filter screen interlayers, and filter holes are uniformly formed in the activated carbon blocks.

5. The boiler waste heat recovery device according to claim 1, wherein the filtering unit further comprises a desulfurization tank, one side of the desulfurization tank is communicated with the filtering tank through an air inlet pipe, the other side of the desulfurization tank is communicated with the heating flue gas pipe through an air inlet pipe, and a desulfurization part is arranged in the desulfurization tank.

6. The boiler waste heat recovery device of claim 1, wherein an insulating layer is fixedly arranged on the inner wall of the insulating box, and the insulating layer is made of insulating foaming materials.

7. The boiler waste heat recovery device of claim 1, further comprising a water pump, wherein an output end of the water pump is communicated with the water inlet pipe.