CN214307612U - High-power short-distance circulating low-temperature hot air generating device - Google Patents
High-power short-distance circulating low-temperature hot air generating device Download PDFInfo
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- CN214307612U CN214307612U CN202120283575.4U CN202120283575U CN214307612U CN 214307612 U CN214307612 U CN 214307612U CN 202120283575 U CN202120283575 U CN 202120283575U CN 214307612 U CN214307612 U CN 214307612U
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Abstract
The utility model discloses a high-power short-distance circulating low-temperature hot air generating device, which comprises a burner, a hot blast stove and a heating box; the hot blast stove comprises a stove body, a hearth liner, a hot blast stove air inlet channel, a hot blast stove air outlet channel and a hearth liner exhaust pipe; one end of the furnace body is communicated with an air inlet channel of the hot blast furnace, and the other end of the furnace body is communicated with an air outlet channel of the hot blast furnace; the air inlet duct of the hot blast stove is connected with an induced draft fan; the hearth liner is arranged in the furnace body, the combustion end of the burner is arranged in the hearth liner, one end of the hearth liner exhaust pipe is connected with the hearth liner, and the other end of the hearth liner exhaust pipe extends out of the furnace body; the heating box comprises a heating box air inlet duct, a heating box body and a heating box exhaust pipe; one end of the heating box body is communicated with the air inlet duct of the heating box, and the other end of the heating box body is communicated with the exhaust pipe of the heating box; the air outlet channel of the hot blast stove is communicated with the air inlet channel of the heating box. The combustion chamber of the hot blast stove is separated from the ventilation duct through the hearth inner container, so that incoming air flow of the air inlet duct of the hot blast stove can be effectively prevented from influencing combustion of the combustion chamber, and the combustion is easy to control.
Description
Technical Field
The utility model belongs to the technical field of the bituminous mixture heating, more specifically relates to a high-power short distance circulation low temperature hot-blast generating device.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The hot-blast generating device type on the market is more at present, and the technique is also more mature, but current hot-blast generating device has a great deal of not enough: firstly, hot air can not be recycled, and the heat energy utilization rate is low; secondly, the size of the high-power hot air generating device is generally large, and the high-power hot air generating device is not suitable for working scenes which require large power and are limited in space; the hot air temperature generated by the high-power hot air generating device is generally higher, and the high-power hot air generating device is not suitable for working scenes with high power requirements and lower hot air temperature.
Under the background, it is of practical significance to develop a hot air generating device which has the advantages of large power, short distance, low temperature of output hot air and capability of recycling hot air.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the above-mentioned not enough of current hot-blast generating device, research and development a power is big, the distance is short, the output hot-blast temperature is low, and hot-blast generating device that can also cyclic utilization.
In order to achieve the above object, the utility model adopts the following technical scheme:
a high-power short-distance circulating low-temperature hot air generating device comprises a burner, a hot air furnace and a heating box;
the hot blast stove comprises a stove body, a hearth liner, a hot blast stove air inlet channel, a hot blast stove air outlet channel and a hearth liner exhaust pipe; one end of the furnace body is communicated with an air inlet channel of the hot blast furnace, and the other end of the furnace body is communicated with an air outlet channel of the hot blast furnace; the air inlet duct of the hot blast stove is connected with an induced draft fan; the hearth liner is arranged in the furnace body, the combustion end of the burner is arranged in the hearth liner, one end of the hearth liner exhaust pipe is connected with the hearth liner, and the other end of the hearth liner exhaust pipe extends out of the furnace body;
the heating box comprises a heating box air inlet duct, a heating box body and a heating box exhaust pipe; one end of the heating box body is communicated with the air inlet duct of the heating box, and the other end of the heating box body is communicated with the exhaust pipe of the heating box; the air outlet channel of the hot blast stove is communicated with the air inlet channel of the heating box;
the heating box exhaust pipe and the end part of the hearth liner exhaust pipe are both provided with exhaust port control valves.
Optionally, a clamping chamber is arranged between the furnace body and the hearth liner, and a spiral ventilating channel is formed by a spiral partition plate.
Optionally, the heating furnace further comprises a circulating system, wherein the circulating system comprises a hearth circulating exhaust pipe, a heating box hot air circulating pipe and a centrifugal fan; the heating box exhaust pipe is further provided with a branch and is communicated with a heating box hot air circulating pipe, the hearth liner exhaust pipe is further provided with a branch and is communicated with a hearth circulating exhaust pipe, centrifugal fans are arranged on the hearth circulating exhaust pipe and the heating box hot air circulating pipe, and the hearth circulating exhaust pipe and the heating box hot air circulating pipe are communicated with an air inlet duct of the hot blast stove.
Optionally, a sensing system is further included; the sensing system comprises a first sensor arranged on an air outlet channel of the hot blast stove, a second sensor arranged on an exhaust pipe of the hearth liner and a third sensor arranged on an exhaust pipe of the heating box; the sensor is used for monitoring the hot air temperature and the air speed in the pipeline in real time.
Optionally, the system further comprises a transmission system and a control system; the transmission system comprises a signal line and a control line, the signal line is connected with the plurality of sensors and the air outlet control valve, and the control line is electrically connected with the combustor and the induced draft fan;
the control system comprises a controller and an air outlet control valve; the controller is connected with the signal line and the control line.
Optionally, the hot blast stove air inlet duct is arranged above one side of the stove body, and the hot blast stove air outlet duct is arranged below one side of the stove body.
Optionally, the heating box air inlet duct is arranged below one side of the heating box body, and the heating box exhaust pipe is arranged above the heating box body.
Optionally, a plurality of staggered horizontal partition plates are arranged in the heating box body.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a high-power short distance circulation low temperature hot-blast generating device, including combustor, draught fan, hot-blast furnace, heating cabinet, circulation system, sensing system, transmission system, control system. The combustion chamber of the hot blast stove is separated from the ventilation duct by the hearth liner, so that the incoming air flow of the air inlet duct of the hot blast stove can be effectively prevented from influencing the combustion of the combustion chamber, and the combustion control is easy; the circulating system circularly discharges part of hot air discharged by the hearth liner and part of hot air discharged by the heating box to an air inlet duct of the hot blast stove so as to circularly utilize discharged hot air and improve the heat energy utilization efficiency of the hot air generating device; the clamping chamber is arranged between the furnace body and the hearth liner, and the spiral ventilating channel, namely the second stroke of hot air, is formed by the spiral partition plate, so that the heat energy utilization efficiency of the hot air generating device can be effectively improved, and the hot air is circulated for two strokes within the length range of the hot air furnace, so that the length of the hot air furnace can be effectively reduced; the device is further improved in that the sensing system, the transmission system and the control system can control the working power of the burner, the draught fan and the centrifugal fan and the opening size of the air outlet control valve, so that the hot air quantity and the temperature of an air outlet channel of the hot air furnace can be intelligently controlled, and the device can meet the requirements of a working scene with large hot air quantity and low hot air temperature. The method has the following specific advantages:
1. hot air exhausted by part of the hearth inner container and the heating box is recycled, and a hot air stroke and a heat conducting surface are increased through the spiral ventilating duct, so that the heat energy utilization efficiency of the hot air generating device can be effectively improved;
2. a second hot air stroke is formed through the spiral partition plate, namely two strokes are circulated within the length range of the hot air furnace, so that the length of the hot air furnace can be effectively reduced;
3. the working power of the burner, the induced draft fan and the centrifugal fan and the opening size of the air outlet control valve can be controlled through the sensing system, the transmission system and the control system, so that the hot air quantity and the temperature of an air outlet channel of the hot air furnace can be intelligently controlled, and the device can meet the requirements of a working scene with large hot air quantity and low hot air temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention;
the numbering in the figures illustrates: 1-a burner; 2, a draught fan; 3, a furnace body; 4, a hearth inner container; 5-a spiral clapboard; 6-spiral ventilating duct; 7-air inlet duct of hot-blast stove; 8-air outlet duct of hot-blast stove (air inlet duct of heating box); 9-exhaust pipe of hearth liner; 10-heating box body; 11-heating box exhaust pipe; 12-hearth circulating exhaust pipe; 13-heating box hot air circulating pipe; 14-centrifugal fan; 15-a sensor; 16-signal lines; 17-a controller; 18-a control line; 19-exhaust port control valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
as shown in the attached figure 1, the high-power short-distance circulating low-temperature hot air generating device comprises a combustor 1, an induced draft fan 2, a hot air furnace, a heating box, a circulating system, a sensing system, a transmission system and a control system.
The hot blast stove comprises a stove body 3, a hearth liner 4, a spiral partition plate 5, a spiral ventilating duct 6, a hot blast stove air inlet duct 7, a hot blast stove air outlet duct 8 and a hearth liner exhaust pipe 9; one end of the furnace body 3 is communicated with an air inlet channel 7 of the hot blast furnace, and the other end is communicated with an air outlet channel 8 of the hot blast furnace; the air inlet duct 7 of the hot blast stove is connected with the induced draft fan 2; the hearth liner 4 is arranged in the furnace body 3, the combustion end of the combustor 1 is arranged in the hearth liner 4, one end of a hearth liner exhaust pipe 9 is connected with the hearth liner 4, and the other end extends out of the furnace body 3;
the hearth liner is a combustion chamber inside the hot blast stove; the spiral partition plate is a spiral partition plate of a clamping chamber between the hot blast stove body and the hearth liner; the spiral ventilating duct is formed by a clamping chamber between the hot blast stove body and the hearth liner through a spiral partition plate; the hot blast stove inlet duct is a connecting pipeline for connecting the induced draft fan and the hot blast stove, and part of hot blast in the hearth circulating exhaust pipe and the heating box hot blast circulating pipe is circularly connected to the hot blast stove inlet duct; the hot blast stove air outlet channel is a channel for discharging hot air in the spiral ventilating channel, is also a pipeline for connecting an air outlet of the hot blast stove with the heating box, and is also an air inlet channel of the heating box; the hearth liner exhaust pipe is a pipeline for exhausting hot gas of the hearth liner outwards.
In order to fully absorb heat energy, a spiral clapboard 5 is arranged in the furnace body 3, and a spiral ventilating duct 6 formed by the spiral clapboard 5 is surrounded outside the hearth inner container 4.
The heating box comprises a heating box air inlet duct, a heating box body 10 and a heating box exhaust duct 11; one end of the heating box body 10 is communicated with the air inlet duct of the heating box, and the other end is communicated with the exhaust duct 11 of the heating box. The heating box air inlet duct is a pipeline for connecting an air outlet of the hot blast stove and the heating box; the heating box body is a heating box framework and a shell; the heating box exhaust pipe is a hot air exhaust pipeline above the heating box.
In order to ensure the full utilization of heat, a circulating system is provided, and the circulating system comprises a hearth circulating exhaust pipe 12, a heating box hot air circulating pipe 13 and a centrifugal fan 14; the heating box exhaust pipe 11 is also communicated with a heating box hot air circulating pipe 13, the hearth liner exhaust pipe 9 is also communicated with a hearth circulating exhaust pipe 12, centrifugal fans 14 are arranged on the hearth circulating exhaust pipe 12 and the heating box hot air circulating pipe 13, and the hearth circulating exhaust pipe 12 and the heating box hot air circulating pipe 13 are both communicated with an air inlet channel 7 of the hot blast stove. The hearth circulating exhaust pipe is a pipeline which circularly exhausts part of hot gas exhausted by the hearth liner to an air inlet duct of the hot blast stove; the heating box hot air circulating pipe is a pipeline which circularly discharges a part of hot air discharged from an air outlet of the heating box to an air inlet duct of the hot blast stove; the centrifugal fan is a power device which leads hot air in the circulating pipe to an air inlet duct of the hot blast stove.
The sensing system is a sensor 15 arranged on an air outlet duct 8 of the hot blast stove, a sensor 15 on an exhaust pipe 9 of a hearth liner and a sensor 15 on an exhaust pipe 11 of the heating box; the sensor can monitor the hot air temperature and the air speed in the pipeline in real time.
The transmission system comprises a signal line 16 and a control line 18, the signal line 16 is connected with a plurality of sensors and an air outlet control valve 19, and the control line 18 is connected with the combustor 1 and the induced draft fan 2; the signal line is a transmission line that transmits sensor monitoring information to the controller.
The control system comprises a controller 17 and an air outlet control valve 19; the controller 17 is connected to the signal line 16 and the control line 18. And the transmission line controls the working power of the burner, the induced draft fan and the centrifugal fan and controls the opening size of the air outlet control valve. The controller is a device for analyzing monitoring information transmitted by the sensing system and issuing control instructions to the combustor, the induced draft fan, the centrifugal fan and the air outlet control valve; the air outlet control valve is a control valve for controlling the opening and closing of the air outlet and the opening size of the air outlet.
The principle of the utility model is that:
the burner 1 adopts fuel oil combustion, the fuel oil is atomized and sprayed in the hearth liner 4 to be fully mixed with air supplied by a combustion fan of the burner 1, high-temperature flue gas is generated by combustion, the high-temperature flue gas is discharged through the hearth liner exhaust pipe 9, and a part of hot gas is discharged to the air inlet duct 7 of the hot blast stove through the hearth circulating exhaust pipe 12 and the centrifugal fan 14 to be recycled.
Fuel oil is combusted in a hearth liner 4 of the hot blast stove, an induced draft fan 2 supplies air to enter a clamping chamber between a hot blast stove body 3 and the hearth liner 4, the clamping chamber is separated into a spiral ventilating duct 6 through a spiral partition plate 5, air flows in the spiral ventilating duct 6, and hot air is formed through heat conduction of the hearth liner 4, the spiral partition plate 5 and the stove body 3.
The combustion chamber of the hot blast stove and the ventilation duct are separated by the hearth liner 4, the incoming air flow of the air inlet duct 7 of the hot blast stove can be effectively prevented from influencing the combustion of the combustion chamber, and the combustion control is easy.
The utility model discloses spiral baffle 5 and spiral air duct 6 are favorable to increasing air heat conduction contact surface, improve hot-blast furnace heat utilization efficiency.
The utility model discloses the hot-blast furnace passes through furnace inner bag 4 and separates hot air channel and form inside and outside two strokes, can effectively reduce the length of hot-blast furnace.
The utility model discloses with furnace inner bag blast pipe 9 and heating cabinet exhaust pipe 11 some steam cycle discharge to hot-blast furnace air inlet duct 7, it is hot-blast through cyclic utilization, can effectively improve hot-blast generating device's heat energy utilization efficiency.
The recycling hot air quantity is realized by arranging a sensor 15 on the hearth liner exhaust pipe 9 and the heating box exhaust pipe 11, the sensor can monitor the temperature and the air speed of hot air in the pipeline in real time, monitoring data are transmitted to a controller 17 through a signal line 16, the controller gives a control instruction to a centrifugal fan 14 and an exhaust port control valve 19 through control lines, and the hot air proportion is controlled by controlling the power of the centrifugal fan 14 and the opening size of the exhaust port control valve 19.
The utility model discloses at hot-blast furnace air-out duct 8, all be provided with sensor 15 on furnace inner bag blast pipe 9 and the heating cabinet exhaust pipe 11, the sensor can hot-blast temperature and wind speed in the real-time supervision pipeline, and give controller 17 with monitoring data passing signal line 16 transmission, controller 17 is through controlling combustor 1, draught fan 2, 14 operating power of centrifugal fan and air exit control valve 19 open the size, thereby intelligent control hot-blast furnace air-out duct 8's hot-blast amount and temperature, make this device can realize that the hot-blast volume is big and the lower job scene requirement of hot-blast temperature.
The device is further improved in that the sensing system, the transmission system and the control system can control the working power of the burner, the draught fan and the centrifugal fan and the opening size of the air outlet control valve, so that the hot air quantity and the temperature of an air outlet channel of the hot air furnace can be intelligently controlled, and the device can meet the requirements of a working scene with large hot air quantity and low hot air temperature.
Preferably, the combustion chamber of the hot blast stove is separated from the ventilation flue by the hearth liner 4, so that the incoming air flow of the air inlet duct 7 of the hot blast stove can be effectively prevented from influencing the combustion of the combustion chamber, and the combustion is easy to control;
preferably, the circulating system circularly discharges part of hot air discharged by the hearth liner 4 and part of hot air discharged by the heating box to the air inlet duct 7 of the hot blast stove so as to circularly utilize the discharged hot air and improve the heat energy utilization efficiency of the hot air generating device.
Preferably, a clamping chamber is arranged between the furnace body 3 and the hearth inner container 4, and a spiral ventilating duct 6 is formed by a spiral partition plate 5, namely, the hot air second stroke can effectively improve the heat energy utilization efficiency of the hot air generating device, and the hot air circulates for two strokes within the length range of the hot air furnace, so that the length of the hot air furnace can be effectively reduced.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and these modifications or equivalents do not depart from the spirit and scope of the present invention, which is all within the protection scope of the claims of the present invention.
Claims (8)
1. A high-power short-distance circulating low-temperature hot air generating device is characterized by comprising a burner, a hot air furnace and a heating box;
the hot blast stove comprises a stove body, a hearth liner, a hot blast stove air inlet channel, a hot blast stove air outlet channel and a hearth liner exhaust pipe; one end of the furnace body is communicated with an air inlet channel of the hot blast furnace, and the other end of the furnace body is communicated with an air outlet channel of the hot blast furnace; the air inlet duct of the hot blast stove is connected with an induced draft fan; the hearth liner is arranged in the furnace body, the combustion end of the burner is arranged in the hearth liner, one end of the hearth liner exhaust pipe is connected with the hearth liner, and the other end of the hearth liner exhaust pipe extends out of the furnace body;
the heating box comprises a heating box air inlet duct, a heating box body and a heating box exhaust pipe; one end of the heating box body is communicated with the air inlet duct of the heating box, and the other end of the heating box body is communicated with the exhaust pipe of the heating box; the air outlet channel of the hot blast stove is communicated with the air inlet channel of the heating box;
the heating box exhaust pipe and the end part of the hearth liner exhaust pipe are both provided with exhaust port control valves.
2. The high-power short-distance circulating low-temperature hot air generating device according to claim 1, characterized in that: a clamping chamber is arranged between the furnace body and the inner container of the hearth, and a spiral ventilating channel is formed by a spiral clapboard.
3. The high-power short-distance circulating low-temperature hot air generating device according to claim 1, characterized in that: the furnace hearth circulation exhaust pipe, the heating box hot air circulation pipe and the centrifugal fan are arranged in the furnace hearth circulation exhaust pipe; the heating box exhaust pipe is further provided with a branch and is communicated with a heating box hot air circulating pipe, the hearth liner exhaust pipe is further provided with a branch and is communicated with a hearth circulating exhaust pipe, centrifugal fans are arranged on the hearth circulating exhaust pipe and the heating box hot air circulating pipe, and the hearth circulating exhaust pipe and the heating box hot air circulating pipe are communicated with an air inlet duct of the hot blast stove.
4. The high-power short-distance circulating low-temperature hot air generating device according to claim 1, characterized in that: the device also comprises a sensing system; the sensing system comprises a first sensor arranged on an air outlet channel of the hot blast stove, a second sensor arranged on an exhaust pipe of the hearth liner and a third sensor arranged on an exhaust pipe of the heating box; the sensor is used for monitoring the hot air temperature and the air speed in the pipeline in real time.
5. The high-power short-distance circulating low-temperature hot air generating device as claimed in claim 4, wherein: the system also comprises a transmission system and a control system; the transmission system comprises a signal line and a control line, the signal line is connected with the plurality of sensors and the air outlet control valve, and the control line is electrically connected with the combustor and the induced draft fan;
the control system comprises a controller and an air outlet control valve; the controller is connected with the signal line and the control line.
6. The high-power short-distance circulating low-temperature hot air generating device according to claim 1, characterized in that: the hot blast stove air inlet duct is arranged above one side of the stove body, and the hot blast stove air outlet duct is arranged below one side of the stove body.
7. The high-power short-distance circulating low-temperature hot air generating device according to claim 1, characterized in that: the heating box air inlet duct is arranged below one side of the heating box body, and the heating box exhaust pipe is arranged above the heating box body.
8. The high-power short-distance circulating low-temperature hot air generating device as claimed in claim 7, wherein: a plurality of staggered horizontal partition plates are arranged in the heating box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120283575.4U CN214307612U (en) | 2021-02-01 | 2021-02-01 | High-power short-distance circulating low-temperature hot air generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120283575.4U CN214307612U (en) | 2021-02-01 | 2021-02-01 | High-power short-distance circulating low-temperature hot air generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214307612U true CN214307612U (en) | 2021-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120283575.4U Active CN214307612U (en) | 2021-02-01 | 2021-02-01 | High-power short-distance circulating low-temperature hot air generating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214307612U (en) |
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2021
- 2021-02-01 CN CN202120283575.4U patent/CN214307612U/en active Active
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