CN209893451U - Air inlet energy-saving device for air pipe of boiler - Google Patents
Air inlet energy-saving device for air pipe of boiler Download PDFInfo
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- CN209893451U CN209893451U CN201920699859.4U CN201920699859U CN209893451U CN 209893451 U CN209893451 U CN 209893451U CN 201920699859 U CN201920699859 U CN 201920699859U CN 209893451 U CN209893451 U CN 209893451U
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Abstract
The utility model relates to a boiler air inlet technical field is a boiler tuber pipe air inlet economizer, and it includes muffler, primary air fan and overfire air fan and confined factory building, and fixed mounting has the boiler in the factory building, and primary air fan and overfire air fan's air outlet communicates with the air inlet end of the primary air pipe of the boiler that corresponds separately and overfire air pipe respectively mutually. The utility model has reasonable and compact structure and convenient use, changes the primary air and secondary air inlets of the boiler into the top of the factory building, not only fully utilizes hot air in the factory building, but also reduces the air temperature at the top of the factory building, and ensures the normal operation of instruments and electrical equipment in the factory building; because the temperature in the top of the factory building is far higher than 20 ℃, high-temperature steam is not needed for heat exchange before the gas enters the fan, so that the energy consumption is saved, and when the fan conveys primary air and secondary air to the boiler, the ambient temperature at the top of the boiler can be reduced due to the supplement effect of the flowing external air at the top of the boiler.
Description
Technical Field
The utility model relates to a boiler air inlet device technical field is a boiler tuber pipe air inlet economizer.
Background
The primary air system of the boiler provides a certain amount of oxygen for the combustion of coal, the secondary air is supplemented with oxygen for ensuring the sufficient combustion of the coal, and the primary air and the secondary air are sent to the corresponding position of the boiler through a primary air pipe and a secondary air pipe by a fan. The temperature of primary air and secondary air entering the fan is required to be 20 ℃, if the air temperature does not reach the standard, fuel waste can be caused, the boiler system is vicious in circulation, and even environmental protection accidents are caused. At present, primary air and secondary air of a boiler are both from ambient air outside a boiler plant, when the season enters winter, the outdoor ambient temperature is low, particularly in northwest regions, the outdoor ambient temperature is extremely low and is often between-20 ℃ and-30 ℃. Even if a boiler plant adopts a closed structure, the temperature at the bottom of the boiler is still only about 0 ℃, and for the situation, the conventional method adopts high-temperature steam to exchange heat and raise the temperature of air in the low-temperature chamber, and then the air is sent into the boiler through a fan, and based on the measures, the following problems still exist:
(1) when the boiler operates, hot air rises due to the natural heat dissipation effect of the boiler, so that the temperature of the top of the factory building is high, and related electric and instrument equipment is damaged;
(2) because high-temperature steam is adopted to heat wind in the low-temperature chamber, the steam is wasted, and the energy consumption is increased;
(3) the temperature is lower around the boiler bottom in winter, makes the boiler heat from the top down cold, and the air of directly adopting the boiler bottom can reduce the effect and the effect of the primary air after the heating and overgrate air temperature, in addition, in the long run, also is an injury to boiler itself, can shorten boiler life even.
Disclosure of Invention
The utility model provides a boiler tuber pipe air inlet economizer has overcome above-mentioned prior art not enough, and it can effectively solve the high problem of current boiler tuber pipe air inlet mode energy consumption.
The technical scheme of the utility model is realized through following measure: the utility model provides a boiler tuber pipe air inlet economizer, includes the muffler, primary air fan and overfire air fan and confined factory building, fixed mounting has the boiler in the factory building, primary air fan and overfire air fan's air outlet communicates with the air inlet end of the primary air pipe of the boiler that corresponds separately and the overfire air pipe mutually respectively, primary air fan and overfire air fan's air intake and the air outlet intercommunication of muffler, there is the air inlet pipeline at the air intake intercommunication of muffler, the air inlet end of air inlet pipeline extends in the factory building top of boiler top.
The utility model has reasonable and compact structure and convenient use, changes the primary air and secondary air inlets of the boiler into the top of the factory building, not only fully utilizes hot air in the factory building, but also reduces the air temperature at the top of the factory building, and ensures the normal operation of instruments and electrical equipment in the factory building; because the temperature in the top of the factory building is far higher than 20 ℃, high-temperature steam is not needed for heat exchange before the gas enters the fan, so that the energy consumption is saved, and when the fan conveys primary air and secondary air to the boiler, because the flowing air is supplemented from the top of the boiler, a plurality of groups of radiating fins are arranged at the bottom of the boiler, the air does not flow and is at relative temperature, so that the ambient temperature at the bottom of the boiler can be properly improved.
Drawings
Fig. 1 is a schematic structural view of the preferred embodiment of the present invention.
The codes in the figures are respectively: 1 is a silencer, 2 is a primary air fan and a secondary air fan, 3 is a workshop, 4 is a boiler, and 5 is an air inlet pipeline.
Detailed Description
The utility model discloses do not receive the restriction of following embodiment, can be according to the utility model discloses a technical scheme and actual conditions determine concrete implementation.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of fig. 1 of the specification.
The invention will be further described with reference to the following examples and drawings:
as shown in the attached drawing 1, this boiler tuber pipe air inlet economizer includes muffler 1, primary air fan and overfire air fan 2 and confined factory building 3, fixed mounting has boiler 4 in factory building 3, primary air fan and overfire air fan 2's air outlet communicates with the air inlet end of the primary air pipe of the boiler 4 that corresponds separately and the overfire air pipe respectively mutually, primary air fan and overfire air fan 2's air intake and muffler 1's air outlet intercommunication, there is air inlet pipeline 5 in muffler 1's air intake intercommunication, air inlet pipeline 5's air inlet end extends to in the 3 tops of factory building above boiler 4.
The primary air fan and the secondary air fan 2 are started, so that high-temperature air in a workshop 3 above the boiler 4 enters the silencer 1 through the air inlet pipeline 5, is conveyed and pressurized through the primary air fan and the secondary air fan 2 and then is respectively conveyed into a primary air pipe and a secondary air pipe of the boiler 4, and finally is conveyed to the corresponding positions of the boiler 4.
The connection mode of the primary air fan and the secondary air fan 2 and the primary air pipe and the secondary air pipe of the boiler 4 is the prior known technology.
The air inlet end of the air inlet pipeline 5 extends to the inside of the workshop 3 above the boiler 4, so that high-temperature gas at the top of the workshop 3 can be fully utilized, and high-temperature steam heat exchange is not needed when the high-temperature gas is used as a primary air source and a secondary air source.
The utility model changes the primary air and secondary air inlet of the boiler 4 into the top of the factory building 3, which not only makes full use of the hot air in the factory building 3, but also reduces the temperature at the top of the factory building 3 and ensures the normal operation of the instruments and electrical equipment in the factory building 3; because the temperature in the top of the factory building 3 is far higher than 20 ℃, before the gas enters the fans (the primary fan and the secondary fan 2), high-temperature steam is not needed for heat exchange, so that the energy consumption is saved, and when the primary fan and the secondary fan 2 convey primary air and secondary air to the boiler 4, the environmental temperature at the bottom of the boiler 4 can be increased. Therefore, the utility model is particularly suitable for boiler 4 operation in the northwest region.
Above technical feature constitutes the utility model discloses a best embodiment, it has stronger adaptability and best implementation effect, can increase and decrease unnecessary technical feature according to actual need, satisfies the demand of different situation.
Claims (1)
1. The utility model provides a boiler tuber pipe air inlet economizer, its characterized in that includes the muffler, primary air fan and overfire fan and confined factory building, fixed mounting has the boiler in the factory building, primary air fan and overfire fan's air outlet communicates with the air inlet end of the primary air pipe of the boiler that corresponds separately and the overfire pipe mutually respectively, primary air fan and overfire fan's air intake and the air outlet intercommunication of muffler, there is the air inlet pipeline at the air intake intercommunication of muffler, the air inlet end of air inlet pipeline extends in the factory building top of boiler top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699859.4U CN209893451U (en) | 2019-05-16 | 2019-05-16 | Air inlet energy-saving device for air pipe of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920699859.4U CN209893451U (en) | 2019-05-16 | 2019-05-16 | Air inlet energy-saving device for air pipe of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209893451U true CN209893451U (en) | 2020-01-03 |
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ID=69020808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920699859.4U Active CN209893451U (en) | 2019-05-16 | 2019-05-16 | Air inlet energy-saving device for air pipe of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209893451U (en) |
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2019
- 2019-05-16 CN CN201920699859.4U patent/CN209893451U/en active Active
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