CN118049832B - Incremental heat pump recycling natural gas drying furnace and application method thereof - Google Patents
Incremental heat pump recycling natural gas drying furnace and application method thereof Download PDFInfo
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- CN118049832B CN118049832B CN202410417543.7A CN202410417543A CN118049832B CN 118049832 B CN118049832 B CN 118049832B CN 202410417543 A CN202410417543 A CN 202410417543A CN 118049832 B CN118049832 B CN 118049832B
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 172
- 238000001035 drying Methods 0.000 title claims abstract description 100
- 239000003345 natural gas Substances 0.000 title claims abstract description 86
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004064 recycling Methods 0.000 title claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 72
- 238000002485 combustion reaction Methods 0.000 claims description 50
- 210000001503 joint Anatomy 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 39
- 239000002912 waste gas Substances 0.000 claims description 34
- 239000002918 waste heat Substances 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 26
- 239000007789 gas Substances 0.000 claims description 21
- 238000006243 chemical reaction Methods 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000005461 lubrication Methods 0.000 claims description 10
- 241000512259 Ascophyllum nodosum Species 0.000 claims description 8
- 241001261506 Undaria pinnatifida Species 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to the technical field of natural gas drying ovens, and particularly discloses an incremental heat pump recycling natural gas drying oven and a use method thereof.
Description
Technical Field
The invention relates to the technical field of natural gas drying ovens, in particular to an incremental heat pump recovery natural gas drying oven. Meanwhile, the invention also relates to a use method of the incremental heat pump recovery natural gas drying furnace.
Background
A natural gas drying oven is a type of drying apparatus using natural gas as a fuel. It utilizes natural gas as a fuel source to generate heat energy by combustion and then transfer the heat energy to the air in the oven to raise the air temperature and humidity, thereby promoting rapid drying of the wet objects.
According to the prior art, the natural gas direct heating device for the coating drying furnace is disclosed by the publication No. CN111238201A, the natural gas direct heating device comprises a drying furnace main body, two symmetrically-distributed circulating fans are fixedly arranged at the inner bottom of the drying furnace main body, air outlets of the two circulating fans are respectively and fixedly connected with air inlets of two circulating air pipes, air outlets of the two circulating air pipes are distributed at two sides of a workpiece moving system in the drying furnace main body, a coated workpiece is placed on a mesh belt, the workpiece is enabled to move along with the mesh belt through the workpiece moving system, the burner is started to burn the conveyed natural gas, so that a combustion chamber is formed in the drying furnace main body, fresh air is introduced into the drying furnace main body through the circulating fans and the circulating air pipes, the drying effect of the equipment is improved, the functional effect can be achieved without the need of being made into the combustion chamber after improvement, raw materials are saved, and the labor manufacturing cost is saved.
However, the following drawbacks remain in this device and in the prior art:
1. The natural gas dryer in the prior art adopts a drying mode that natural gas and air are mixed and ignited by a burner, high-temperature combustion is generated in a furnace to release a large amount of heat energy, then the heat energy is transmitted to the air in the furnace in a furnace body conduction and convection mode, so that the temperature of the air is increased, materials in the furnace, such as undaria pinnatifida or kelp, can be dried, in the process, a large amount of heat exists in waste gas generated after the natural gas burner is combusted, and the waste gas is directly discharged through a smoke exhaust pipe, so that resource waste is caused, and then the waste gas with a large amount of heat is utilized to act on the furnace body again to provide a heating function so as to play a role of energy conservation, so that the problem is still to be solved.
2. If the energy conversion needs to be carried out on the waste gas with heat, the construction mode of the existing natural gas drying furnace equipment needs to be further improved, and how to reasonably construct the existing natural gas drying furnace so as to realize that the heat of the waste gas is recovered by the incremental heat pump is still to be solved.
Disclosure of Invention
The invention aims to provide an incremental heat pump recycling natural gas drying furnace and a use method thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides an incrementally-increased type heat pump recovery natural gas drying furnace, includes the stoving furnace body that is used for the stoving, the feeding subassembly that is used for throwing into the material is installed to the one end of stoving furnace body, the rotation subassembly that is used for driving the stoving furnace body is installed to the lateral wall of stoving furnace body, the lateral wall rotation of stoving furnace body is connected with the heating cylinder, the bottom of heating cylinder is installed respectively and is used for the hot-blast natural gas combustion subassembly of heat conduction, the top of heating cylinder is installed respectively and is used for collecting the heat exchange subassembly of natural gas combustion subassembly post-combustion waste gas;
The heat exchange assembly comprises a heat exchanger, an exhaust gas air inlet pipe, an exhaust gas air outlet pipe, a first fan, a liquid inlet pipe and a liquid outlet pipe, wherein one end of the heat exchanger is fixedly installed with one end of the exhaust gas air inlet pipe and one end of the exhaust gas air outlet pipe respectively, the other end of the exhaust gas air outlet pipe is fixedly installed with the top of the heating cylinder, the exhaust gas air outlet pipe is fixedly installed with the first fan, the liquid inlet pipe is installed at the bottom of one side of the heat exchanger, and the liquid outlet pipe is installed on the top of the other side of the heat exchanger;
The liquid outlet pipe is in butt joint with the liquid inlet end of the waste heat conversion assembly, the air outlet end of the waste heat conversion assembly is communicated with the air inlet end of the natural gas combustion assembly, and hot air with heat is provided for the natural gas combustion assembly.
As a preferable scheme of the invention, the feeding assembly comprises a feeding bin, a bin gate, a notch and a gate pin, wherein the feeding bin is arranged on one side of the drying furnace body and used for feeding materials to be dried into the drying furnace body, two sides of the bin gate are arranged on a feeding port of the feeding bin in an openable and closable manner through hinges, the center of the bin gate is provided with the notch for inserting a material pipe, and the surface of the bin gate is also provided with the gate pin.
As a preferable scheme of the invention, the rotating assembly comprises a toothed ring, a gear, a gearbox, a driving motor and a first base, wherein the toothed ring is fixedly arranged on one side wall of the drying furnace body, the side wall of the gear is in meshed connection with the side wall of the toothed ring, the inside of the gear is in key connection with an output shaft of the gearbox, an output shaft of the driving motor is fixedly arranged with an input shaft of the gearbox through a coupler, and the driving motor and the gearbox are both arranged on the top surface of the first base.
As a preferable scheme of the invention, the two side walls of the drying furnace body are also provided with lubrication components which are convenient for the drying furnace body to rotate, the lubrication components comprise rotating rings, rotating wheels, bearing seats and second bases, the rotating rings are respectively fixedly sleeved on the two side walls of the drying furnace body, the bottom side walls of the rotating rings are respectively in contact with the side walls of the rotating wheels, the two ends of the rotating wheels are arranged in the inner rings of the bearing seats, and the bearing seats are arranged on the top surfaces of the two sides of the second bases in two groups.
As a preferable scheme of the invention, the natural gas combustion assembly comprises a natural gas combustion chamber, a blast box, a heat-conducting air inlet pipe and a combustion-supporting air inlet pipe, wherein the side wall of the blast box is fixedly arranged with an air outlet of the natural gas combustion chamber, one side of the blast box is provided with the heat-conducting air inlet pipe, the air outlet end of the heat-conducting air inlet pipe is fixedly arranged with the bottom of the heating cylinder, and the top surface of the other side of the blast box is fixedly arranged with the combustion-supporting air inlet pipe.
As a preferable scheme of the invention, the variable-frequency air blower is arranged in the air blowing box, and the variable-frequency air blower is a heat-conducting air inlet pipe for discharging hot air.
As a preferable scheme of the invention, the waste heat conversion assembly comprises a first butt joint pipe, a liquid outlet guide pipe, a condenser, a liquid discharge pipe, a hot air outlet pipe and a second butt joint pipe, wherein one end of the first butt joint pipe is respectively in butt joint with the liquid outlet pipe, the other end of the first butt joint pipe is respectively and fixedly connected with the side wall of the liquid outlet guide pipe, and the liquid outlet guide pipe is fixedly arranged with the liquid inlet end of the condenser.
As a preferable scheme of the invention, the side wall of the condenser is fixedly arranged with the liquid discharge pipe, the side wall of the other side of the condenser is in butt joint with one end of the hot air outlet pipe, the bottom surface of the hot air outlet pipe is fixedly connected with the second butt joint pipe respectively, and the second butt joint pipe is in butt joint with the combustion-supporting air inlet pipe.
As a preferable scheme of the invention, the side wall of the hot air outlet pipe is also provided with a second fan in a butt joint way, and the side wall of the second fan is provided with a fresh air inlet.
The application method of the incremental heat pump recovery natural gas drying furnace comprises the following steps:
s1, inputting materials, namely inputting the materials into a drying furnace body through a bin gate in a feeding assembly, wherein the input modes are divided into two types, and one type can be selected at will;
mode one: the door pin is opened, the feed inlet of the feed bin is opened by rotating the bin door, and materials are directly put into the feed bin;
Mode two: the discharging pipe of the conveying device is inserted into the notch of the bin gate, and then the conveying device is used for directly throwing materials into the feeding bin;
S2, drying the materials, namely, after the natural gas pipe is in butt joint with a natural gas combustion chamber of a natural gas combustion assembly, igniting natural gas through an ignition device of the natural gas combustion chamber to enable the natural gas to burn, and then enabling a variable-frequency air blower in an air blowing box to send hot air and waste gas generated by natural gas combustion into a heating cylinder through a heat-conducting air inlet pipe, so that the inside of the heating cylinder is in a high-temperature state, and heating and drying the materials in a drying furnace body;
s3, the rotation of the drying furnace body drives a gear set in a gearbox to rotate through a driving motor, and then after the gear ratio of the gearbox changes speed, the driving gear rotates, and the gear rotates to drive a toothed ring to rotate, so that the drying furnace body can rotate, and the materials inside the drying furnace body can be heated uniformly;
Meanwhile, in the process of autorotation of the drying furnace body, the swivel in the lubrication assembly rotates, so that the swivel rotates on the side wall of the rotating wheel;
S4, heat exchange treatment of waste heat, wherein waste gas with the waste heat after passing through the heating cylinder enters the heat exchanger through a waste gas air inlet pipe in the heat exchange assembly, and then is discharged from the heat exchanger through a waste gas air outlet pipe under the action of the air draft of the first fan, and in the process:
After the waste gas with waste heat enters the heat exchanger, the internal cold liquid of the heat exchanger can be heated by the hot waste gas to be changed into hot liquid, and then the hot liquid is discharged out of the heat exchanger through a liquid outlet pipe, so that the heat exchanger is utilized to absorb the residual heat in the waste gas;
S5, waste heat conversion treatment, wherein hot liquid flows into a condenser of the waste heat conversion assembly through a liquid outlet pipe, heat in the hot liquid is absorbed in the condenser and then is discharged through a liquid outlet pipe, the absorbed heat is subjected to heating treatment on air, then the absorbed heat is respectively introduced into a second butt joint pipe through a hot air outlet pipe, and finally the absorbed heat is introduced into a combustion-supporting air inlet pipe on an air blowing box, so that hot air is supplied to the air blowing box to perform reheating treatment on a drying furnace body.
Compared with the prior art, the invention has the beneficial effects that:
1. the waste gas with heat after the natural gas burns is collected and treated through the heat exchange assembly, the heat exchange assembly comprises a heat exchanger, the heat of the waste gas is absorbed into liquid by utilizing the function of the heat exchanger, then the liquid with heat is cooled by a condenser in the waste heat conversion assembly, after the heat is used for heating air in the cooling process, the air is led into the air blowing box in the natural gas combustion assembly again through the hot air outlet pipe, so that the air entering from the air blowing box is hot air, the air entering from the air blowing box can act on the drying furnace body again, the consumption of the natural gas is reduced, the energy-saving effect is achieved, and the discharged waste gas can be reused.
2. Through rationally building heating cylinder, natural gas combustion subassembly, heat exchange subassembly and waste heat conversion subassembly to can also utilize again through heat exchange subassembly and waste heat conversion subassembly to heat in the waste gas under the condition that satisfies traditional natural gas drying furnace function, with carry out incremental heat pump air feed mode to natural gas combustion subassembly, thereby reach better drying efficiency.
3. According to the incremental heat pump recovery natural gas drying furnace, further improvement is made on the existing natural gas drying furnace, so that waste gas exhausted by natural gas can be reused, a drying effect is improved, energy conservation and emission reduction can be achieved, compared with a traditional natural gas drying furnace, the incremental heat pump recovery natural gas drying furnace has a good application prospect, and in the process of carrying and building, transfer and building can be facilitated due to the mode of assembly between components.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of a structure of a drying oven according to the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
FIG. 4 is an enlarged schematic view of the structure of FIG. 2B according to the present invention;
FIG. 5 is a schematic diagram of the assembly structure of the heating cartridge, natural gas combustion module, heat exchange module and waste heat conversion module of the present invention;
FIG. 6 is a schematic view of a natural gas combustion assembly according to the present invention;
FIG. 7 is a schematic view of a heat exchange assembly according to the present invention;
Fig. 8 is a schematic structural diagram of the waste heat conversion assembly of the present invention.
In the figure: 1. a drying furnace body; 2. a feed assembly; 21. a feeding bin; 22. a bin gate; 23. a notch; 24. a door pin; 3. a rotating assembly; 31. a toothed ring; 32. a gear; 33. a gearbox; 34. a driving motor; 35. a first base; 4. a lubrication assembly; 41. a swivel; 42. a rotating wheel; 43. a bearing seat; 44. a second base; 5. a heating cylinder; 6. a natural gas combustion assembly; 61. a natural gas combustion chamber; 62. a blow box; 63. a heat-conducting air inlet pipe; 64. a combustion-supporting air inlet pipe; 7. a heat exchange assembly; 71. a heat exchanger; 72. an exhaust gas inlet pipe; 73. an exhaust gas outlet pipe; 74. a first fan; 75. a liquid inlet pipe; 76. a liquid outlet pipe; 8. a waste heat conversion assembly; 81. a first butt joint pipe; 82. a liquid outlet guide pipe; 83. a condenser; 84. a liquid discharge pipe; 85. a hot air outlet pipe; 86. a second butt joint pipe; 9. a second fan; 91. fresh air inlet.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 8, the present invention provides an embodiment:
An incremental heat pump recovery natural gas drying furnace and a use method thereof, comprises a drying furnace body 1 for drying, wherein the drying furnace body 1 is an existing furnace body for drying materials.
As shown in fig. 4, a feeding assembly 2 for feeding materials is installed at one end of a drying furnace body 1, the feeding assembly 2 comprises a feeding bin 21, a bin gate 22, a notch 23 and a gate pin 24, the feeding bin 21 is installed on one side of the drying furnace body 1 and used for feeding materials to be dried into the inside of the drying furnace body 1, two sides of the bin gate 22 are installed on a feeding hole of the feeding bin 21 in an openable and closable manner through hinges, a notch 23 for inserting a material pipe is formed in the middle of the bin gate 22, and the gate pin 24 is further installed on the surface of the bin gate 22.
The undaria pinnatifida or kelp which needs to be dried is put into the inside of the drying furnace body 1 through a feed inlet on the feed bin 21, then is put into the furnace body through the opening and closing of the bin gate 22, and two input modes are provided, namely, the feed inlet of the feed bin 21 is opened by opening the gate pin 24, the undaria pinnatifida or kelp is directly put into the furnace body, the conveying pipe is inserted into the undaria pinnatifida or kelp through a notch 23 formed in the bin gate 22, and then the undaria pinnatifida or kelp is directly put into the feed bin 21 through the conveying device, so that the first mode and the second mode can be freely selected according to actual use conditions.
The side wall of the drying furnace body 1 is provided with a rotating assembly 3 for driving the drying furnace body 1, the rotating assembly 3 comprises a toothed ring 31, a gear 32, a gearbox 33, a driving motor 34 and a first base 35, the toothed ring 31 is fixedly arranged on one side wall of the drying furnace body 1, the side wall of the gear 32 is connected with the side wall of the toothed ring 31 in a meshed manner, the inside of the gear 32 is connected with an output shaft key of the gearbox 33, an output shaft of the driving motor 34 is fixedly arranged with an input shaft of the gearbox 33 through a coupler, and the driving motor 34 and the gearbox 33 are arranged on the top surface of the first base 35.
As shown in fig. 2 and 3, in order to enable the drying oven body 1 to be heated uniformly, the driving motor 34 drives the gear 32 group in the gearbox 33 to rotate, and the gear 32 is driven to rotate after the gear ratio of the gearbox 33 changes speed, so that the gear 32 can drive the toothed ring 31 to rotate, and further the drying oven body 1 can rotate, so that the internal heating uniformity is ensured, and the undaria pinnatifida or kelp can be dried better.
Meanwhile, in order to enable the drying furnace body 1 to better rotate, the lubrication assembly 4 which is convenient for the drying furnace body 1 to rotate is further arranged on the side walls of the two sides of the drying furnace body 1, the lubrication assembly 4 comprises a swivel 41, a rotating wheel 42, a bearing seat 43 and a second base 44, the swivel 41 is respectively fixedly sleeved on the side walls of the two sides of the drying furnace body 1, the side walls of the bottom of the swivel 41 are respectively abutted against the side walls of the rotating wheel 42, the two ends of the rotating wheel 42 are arranged in the inner ring of the bearing seat 43, and the bearing seats 43 are arranged on the top surfaces of the two sides of the second base 44 in two groups
So that in the process of the rotation of the drying furnace body 1, the swivel 41 can be driven to rotate, so that the swivel 41 rotates on the side wall of the rotating wheel 42, and the rotation smoothness of the drying furnace body 1 can be ensured while the drying furnace body 1 is supported.
As shown in fig. 1 and 5, the side wall of the drying furnace body 1 is rotatably connected with a heating cylinder 5, as shown in fig. 6, the bottom of the heating cylinder 5 is respectively provided with a natural gas combustion assembly 6 for conducting heat and hot air, the natural gas combustion assembly 6 comprises a natural gas combustion chamber 61, a blast box 62, a heat conducting air inlet pipe 63 and a combustion supporting air inlet pipe 64, the side wall of the blast box 62 is fixedly arranged at the air outlet of the natural gas combustion chamber 61, the heat conducting air inlet pipe 63 is arranged at one side of the blast box 62, the air outlet end of the heat conducting air inlet pipe 63 is fixedly arranged at the bottom of the heating cylinder 5, the top surface of the other side of the blast box 62 is fixedly arranged at the combustion supporting air inlet pipe 64, a variable-frequency air feeder is arranged in the blast box 62, and the variable-frequency air feeder is used for discharging the heat conducting air inlet pipe 63 into hot air.
The natural gas is burned through the natural gas combustion chamber 61 so that the blast box 62 can generate a large amount of hot air, and then the hot air is fed into the inside of the heating drum 5 through the heat conduction air inlet pipe 63 under the blast action of the variable frequency blower to heat the drying oven 1, thereby enabling the undaria pinnatifida or kelp therein to be dried with moisture on the surface.
As shown in fig. 7, the top of the heating cylinder 5 is respectively provided with a heat exchange assembly 7 for collecting the exhaust gas generated after the combustion of the natural gas combustion assembly 6, the heat exchange assembly 7 comprises a heat exchanger 71, an exhaust gas air inlet pipe 72, an exhaust gas air outlet pipe 73, a first fan 74, a liquid inlet pipe 75 and a liquid outlet pipe 76, one end of the heat exchanger 71 is respectively fixedly arranged with one end of the exhaust gas air inlet pipe 72 and one end of the exhaust gas air outlet pipe 73, the other end of the exhaust gas air outlet pipe 73 is fixedly arranged with the top of the heating cylinder 5, the exhaust gas air outlet pipe 73 is fixedly arranged with the first fan 74, the liquid inlet pipe 75 is arranged at the bottom of one side of the heat exchanger 71, and the liquid outlet pipe 76 is arranged on the top of the other side of the heat exchanger 71;
when the waste gas with heat generated by the natural gas combustion chamber 61 enters the interior of the heating cylinder 5, the waste gas with heat acts on the drying furnace body 1 for heating in the first step, enters the interior of the heat exchanger 71 through the waste gas outlet pipe 73 on the top surface of the heating cylinder 5, is discharged from the waste gas outlet pipe 73, and can be effectively pumped out under the action of the first fan 74, in the process, after the waste gas with waste heat enters the interior of the heat exchanger 71, the heat exchanger 71 is usually composed of a series of pipes or plates according to the structural principle of the heat exchanger 71, and through the pipes or plates, two fluids (usually a heat source and a heat carrier) can transfer heat without direct contact, so that cold liquid guided by the liquid inlet pipe 75 absorbs the heat of the discharged waste gas, is heated, and then is discharged from the heat exchanger 71 through the liquid outlet pipe 76, and the residual heat in the waste gas is absorbed by the heat exchanger 71.
The liquid outlet pipe 76 is in butt joint with the liquid inlet end of the waste heat conversion assembly 8, and the air outlet end of the waste heat conversion assembly 8 is communicated with the air inlet end of the natural gas combustion assembly 6 and provides hot air with heat for the natural gas combustion assembly 6.
The waste heat conversion assembly 8 comprises a first butt joint pipe 81, a liquid outlet guide pipe 82, a condenser 83, a liquid discharge pipe 84, a hot air outlet pipe 85 and a second butt joint pipe 86, wherein one end of the first butt joint pipe 81 is respectively in butt joint with the liquid outlet pipe 76, the other end of the first butt joint pipe 81 is respectively fixedly connected with the side wall of the liquid outlet guide pipe 82, the liquid outlet guide pipe 82 is fixedly connected with the liquid inlet end of the condenser 83, the side wall of the condenser 83 is fixedly connected with the liquid discharge pipe 84, the side wall of the other side of the condenser 83 is in butt joint with one end of the hot air outlet pipe 85, the bottom surface of the hot air outlet pipe 85 is respectively in butt joint with the second butt joint pipe 86, and the second butt joint pipe 86 is in butt joint installation with the combustion supporting air inlet pipe 64.
As shown in fig. 5 and 8, the heated hot liquid enters the liquid outlet guide pipe 82 through the first pair of pipes 81, then enters the condenser 83 through the liquid outlet guide pipe 82, and after passing through the condenser 83, the hot liquid is cooled, that is, the temperature is reduced, due to the fact that the heat in the liquid is removed in the heat exchange process in the condenser 83, the temperature of the liquid is reduced, the heat can be used for heating the air again, the cooled liquid is discharged through the liquid discharge pipe 84, the hot air with the heat enters the second pair of pipes 86 through the hot air outlet pipes 85 respectively, finally enters the combustion supporting air inlet pipe 64 on the air blast box 62 to provide the hot air for the air blast box 62, so that the hot air can act on the drying furnace body 1 again, the drying furnace body 1 is heated again, the heat pump mode is adopted, the waste heat of the waste gas can be well utilized for the heating treatment again, and the natural gas combustion amount is reduced, and the energy consumption is saved.
Meanwhile, further, the side wall of the hot air outlet pipe 85 is also in butt joint with a second fan 9, a fresh air inlet 91 is formed in the side wall of the second fan 9, hot air can be better fed into the air inlet box 62 through the second fan 9, and the fresh air inlet 91 is arranged, so that sufficient oxygen can be provided for the natural gas combustion chamber 61, and the combustion supporting effect is achieved.
The control mode of the file of the application is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the control mode and circuit connection are not explained in detail because the file of the application is mainly used for protecting the mechanical device and belongs to common knowledge in the art.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An incremental heat pump recycling natural gas drying furnace for drying and processing undaria pinnatifida or kelp, comprising a drying furnace body (1) for drying, and characterized in that: a feeding component (2) for feeding materials is arranged at one end of the drying furnace body (1), a rotating component (3) for driving the drying furnace body (1) is arranged on the side wall of the drying furnace body (1), a heating cylinder (5) is rotationally connected to the side wall of the drying furnace body (1), a natural gas combustion component (6) for conducting heat and hot air is respectively arranged at the bottom of the heating cylinder (5), and a heat exchange component (7) for collecting waste gas after the natural gas combustion component (6) is respectively arranged at the top of the heating cylinder (5);
The heat exchange assembly (7) comprises a heat exchanger (71), an exhaust gas air inlet pipe (72), an exhaust gas air outlet pipe (73), a first fan (74), a liquid inlet pipe (75) and a liquid outlet pipe (76), wherein one end of the heat exchanger (71) is fixedly installed with one end of the exhaust gas air inlet pipe (72) and one end of the exhaust gas air outlet pipe (73) respectively, the other end of the exhaust gas air outlet pipe (73) is fixedly installed with the top of the heating cylinder (5), the exhaust gas air outlet pipe (73) is fixedly installed with the first fan (74), the liquid inlet pipe (75) is installed at the bottom of one side of the heat exchanger (71), and the liquid outlet pipe (76) is installed at the top of the other side of the heat exchanger (71);
the liquid outlet pipe (76) is in butt joint with the liquid inlet end of the waste heat conversion assembly (8), the air outlet end of the waste heat conversion assembly (8) is communicated with the air inlet end of the natural gas combustion assembly (6), and hot air with heat is provided for the natural gas combustion assembly (6);
The rotary assembly (3) comprises a toothed ring (31), a gear (32), a gearbox (33), a driving motor (34) and a first base (35), wherein the toothed ring (31) is fixedly arranged on one side wall of the drying furnace body (1), the side wall of the gear (32) is meshed with the side wall of the toothed ring (31), the inside of the gear (32) is connected with an output shaft of the gearbox (33) in a key way, an output shaft of the driving motor (34) is fixedly arranged with an input shaft of the gearbox (33) through a coupler, and the driving motor (34) and the gearbox (33) are both arranged on the top surface of the first base (35);
The two side walls of the drying furnace body (1) are also provided with lubrication components (4) which are convenient for the drying furnace body (1) to rotate, the lubrication components (4) comprise rotating rings (41), rotating wheels (42), bearing seats (43) and second bases (44), the rotating rings (41) are respectively fixedly sleeved and installed on the two side walls of the drying furnace body (1), the bottom side walls of the rotating rings (41) are respectively in contact with the side walls of the rotating wheels (42), two ends of the rotating wheels (42) are installed in the inner ring of the bearing seats (43), and the bearing seats (43) are installed on the top surfaces of two sides of the second bases (44) in two groups;
The gear (32) group in the gearbox (33) is driven to rotate through the driving motor (34), and then after the gear ratio of the gearbox (33) changes, the gear (32) is driven to rotate, and the gear (32) rotates to drive the toothed ring (31) to rotate, so that the drying furnace body (1) can rotate, and the materials in the drying furnace body (1) can be heated uniformly;
Meanwhile, in the process of autorotation of the drying furnace body (1), the swivel (41) in the lubrication assembly (4) rotates, so that the swivel (41) rotates on the side wall of the rotating wheel (42).
2. An incremental heat pump cycle natural gas dryer according to claim 1 wherein: the feeding assembly (2) comprises a feeding bin (21), a bin gate (22), a notch (23) and a door pin (24), wherein the feeding bin (21) is arranged on one side of the drying furnace body (1) and used for feeding materials to be dried into the drying furnace body (1), two sides of the bin gate (22) are arranged on a feeding inlet of the feeding bin (21) in an openable mode through hinges, a notch (23) for inserting a material pipe is formed in the middle of the bin gate (22), and the door pin (24) is further arranged on the surface of the bin gate (22).
3. An incremental heat pump cycle natural gas dryer according to claim 2 wherein: the natural gas combustion assembly (6) comprises a natural gas combustion chamber (61), a blowing box (62), a heat conduction air inlet pipe (63) and a combustion-supporting air inlet pipe (64), wherein the side wall of the blowing box (62) is fixedly arranged with an air outlet of the natural gas combustion chamber (61), the heat conduction air inlet pipe (63) is arranged on one side of the blowing box (62), the air outlet end of the heat conduction air inlet pipe (63) is fixedly arranged with the bottom of the heating cylinder (5), and the top surface of the other side of the blowing box (62) is fixedly arranged with the combustion-supporting air inlet pipe (64).
4. An incremental heat pump cycle natural gas dryer according to claim 3 wherein: a variable-frequency air blower is arranged in the air blowing box (62), and the variable-frequency air blower discharges hot air into the heat-conducting air inlet pipe (63).
5. An incremental heat pump cycle natural gas dryer according to claim 4 wherein: the waste heat conversion assembly (8) comprises a first butt joint pipe (81), a liquid outlet guide pipe (82), a condenser (83), a liquid discharge pipe (84), a hot air outlet pipe (85) and a second butt joint pipe (86), wherein one end of the first butt joint pipe (81) is respectively in butt joint with the liquid outlet pipe (76), the other end of the first butt joint pipe (81) is respectively fixedly connected with the side wall of the liquid outlet guide pipe (82), and the liquid outlet guide pipe (82) is fixedly arranged with the liquid inlet end of the condenser (83).
6. An incremental heat pump cycle natural gas dryer according to claim 5 wherein: the side wall of the condenser (83) is fixedly installed with the liquid discharge pipe (84), the side wall of the other side of the condenser (83) is in butt joint with one end of the hot air outlet pipe (85), the bottom surface of the hot air outlet pipe (85) is fixedly connected with the second butt joint pipe (86) respectively, and the second butt joint pipe (86) is in butt joint installation with the combustion-supporting air inlet pipe (64).
7. An incremental heat pump cycle natural gas dryer according to claim 6 wherein: the side wall of the hot air outlet pipe (85) is also provided with a second fan (9) in a butt joint mode, and the side wall of the second fan (9) is provided with a fresh air inlet (91).
8. A method of using an incremental heat pump-recovered natural gas oven, using an incremental heat pump-recovered natural gas oven of claim 7, comprising the steps of:
s1, inputting materials, namely inputting the materials into a drying furnace body (1) through a bin gate (22) in a feeding assembly (2), wherein the input modes are divided into two modes, and one mode can be selected at will;
mode one: the door pin (24) is opened, the feed inlet of the feed bin (21) is opened by rotating the bin door (22), and materials are directly put into the feed bin (21);
Mode two: the discharging pipe of the conveying device is inserted into a notch (23) of a bin gate (22), and then the conveying device is used for directly throwing materials into a feeding bin (21);
S2, drying materials, namely, after a natural gas pipe is in butt joint with a natural gas combustion chamber (61) of a natural gas combustion assembly (6), igniting natural gas through an ignition device of the natural gas combustion chamber (61) to enable the natural gas to burn, and then enabling a variable-frequency blower in a blower box (62) to send hot air and waste gas combusted by the natural gas into a heating cylinder (5) through a heat-conducting air inlet pipe (63), so that the inside of the heating cylinder (5) is in a high-temperature state, and heating and drying the materials in a drying furnace body (1);
S3, the rotation of the drying furnace body (1) drives a gear (32) group in a gearbox (33) to rotate through a driving motor (34), and then after the gear ratio of the gearbox (33) changes, the gear (32) is driven to rotate, and the gear (32) rotates to drive a toothed ring (31) to rotate, so that the drying furnace body (1) can rotate, and the materials inside the drying furnace body (1) can be heated uniformly;
meanwhile, in the process of autorotation of the drying furnace body (1), the swivel (41) in the lubrication assembly (4) rotates, so that the swivel (41) rotates on the side wall of the rotating wheel (42);
s4, heat exchange treatment of waste heat, wherein waste gas with the waste heat after passing through the heating cylinder (5) enters the heat exchanger (71) through a waste gas air inlet pipe (72) in the heat exchange assembly (7), and then is discharged from the heat exchanger (71) through a waste gas air outlet pipe (73) under the action of the air draft of a first fan (74), and in the process:
After the waste gas with waste heat enters the heat exchanger (71), the internal cold liquid of the heat exchanger (71) can be heated by the hot waste gas to be changed into hot liquid, and then the hot liquid is discharged out of the heat exchanger (71) through a liquid outlet pipe (76), so that the heat exchanger (71) is utilized to absorb the residual heat in the waste gas;
S5, waste heat conversion treatment, wherein hot liquid flows into a condenser (83) of the waste heat conversion assembly (8) through a liquid outlet pipe (76), heat in the hot liquid is absorbed through the condenser (83), then is discharged through a liquid outlet pipe (84), the absorbed heat is subjected to heating treatment on air, then enters a second butt joint pipe (86) through a hot air outlet pipe (85) respectively, finally enters a combustion-supporting air inlet pipe (64) on the air blast box (62), and the air blast box (62) is provided with hot air to heat the drying furnace body (1) again.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210625285U (en) * | 2019-08-05 | 2020-05-26 | 三只松鼠股份有限公司 | Nut moisture control device |
| CN211425012U (en) * | 2019-12-31 | 2020-09-04 | 无锡天控工业技术有限公司 | Rapid dehumidifying drying furnace for full-automatic tunnel type wire rod pickling and phosphating production line |
| CN213090333U (en) * | 2020-08-31 | 2021-04-30 | 南阳师范学院 | Bentonite dehumidification drying device |
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| CN201858905U (en) * | 2010-10-18 | 2011-06-08 | 东莞市创智涂装设备工程有限公司 | Thermal energy recycling device |
| KR101733234B1 (en) * | 2016-05-26 | 2017-05-08 | 엔디티엔지니어링(주) | Food drying device utilizing the waste heat drying efficiency improvements |
| CN217403018U (en) * | 2022-07-29 | 2022-09-09 | 福建省铁拓机械股份有限公司 | RAP thermal regeneration drying and heating system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210625285U (en) * | 2019-08-05 | 2020-05-26 | 三只松鼠股份有限公司 | Nut moisture control device |
| CN211425012U (en) * | 2019-12-31 | 2020-09-04 | 无锡天控工业技术有限公司 | Rapid dehumidifying drying furnace for full-automatic tunnel type wire rod pickling and phosphating production line |
| CN213090333U (en) * | 2020-08-31 | 2021-04-30 | 南阳师范学院 | Bentonite dehumidification drying device |
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