CN210089122U - Sleeve type air electric heater - Google Patents
Sleeve type air electric heater Download PDFInfo
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- CN210089122U CN210089122U CN201920668146.1U CN201920668146U CN210089122U CN 210089122 U CN210089122 U CN 210089122U CN 201920668146 U CN201920668146 U CN 201920668146U CN 210089122 U CN210089122 U CN 210089122U
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Abstract
The utility model discloses a bushing type air electric heater, which comprises a first mounting part, a second mounting part, a bushing component and an electric heating rod; the thimble assembly is provided with air-supply line, baffling pipe and play tuber pipe from outer to interior, leaves between the pipe wall of air-supply line, baffling pipe and play tuber pipe and overflows the passageway, the electric pole sets up baffling pipe with go out between the tuber pipe, the air-supply line with the passageway that overflows between the baffling pipe is preheating the chamber, baffling pipe with it is heating chamber to go out the passageway that overflows between the tuber pipe, the inner channel that goes out the tuber pipe is strong hot chamber. After the air flows through the sleeve type air electric heater in the scheme of the application, the air is contacted with the heat transfer in the whole process, and the heat transfer efficiency is effectively improved. The sleeve type air electric heater has a simple internal structure, does not contain heating wires, spoilers, radiating fins and other silk objects and projections which enlarge the air contact heat transfer area, meets the heating requirement of clean air, and is particularly suitable for sterile packaging equipment with a requirement on structural sanitation.
Description
Technical Field
The utility model relates to an air heating technical field of food and beverage equipment for packing, bio-pharmaceuticals equipment especially relates to a bushing type air electric heater.
Background
Air heaters are electrical heating devices that heat a gas stream primarily, and are widely used in various aspects of residential life and industrial production. In the application of aseptic filling equipment of food packaging equipment and biopharmaceutical equipment, an air heater is matched with an air sterilization filter to generate aseptic hot air, an auxiliary bactericide is vaporized to generate a sterilization gas, and packaging materials such as sterilized films and bottles need to be dried by using the aseptic hot air to reduce bactericide residues on the packaging materials. In the traditional air heater, if a heat exchanger is adopted for heat transfer, a heat medium inlet and outlet pipeline needs to be connected, and meanwhile, a temperature control part has a plurality of valves, so that the overall size of the heater is large, the use and the installation are inconvenient, and the distributed multi-point use is inconvenient; if the traditional electric heater is adopted, because the air flow rate is high, the heating time of the electric heater contacting with air is short, the temperature of the air at the outlet of the heater is often too low to meet the use requirement, and in order to improve the outlet temperature, the method of prolonging the contact heating time of the air is often adopted, namely, fins are additionally arranged or the heating area is improved by using a wire mesh mode; or to increase the power of the electric heater. These measures often result in either inefficient heating or too many dead corners in the heater structure to be sanitary and convenient for use in applications requiring cleanliness.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bushing type air electric heater, simple structure is reasonable, and simple to operate is swift, and heating efficiency is high, has preheating simultaneously, heating and strong hot function simultaneously, can solve current air heater in equipment for packing uses, especially difficult point in aseptic air heating's the application, solves air contact heating time weak point partially, contradiction between heater power and the installation volume to and the technical defect that the unsanitary heater structure is unfavorable for aseptic air heating application etc..
To achieve the purpose, the utility model adopts the following technical proposal: a bushing type air electric heater comprises a first mounting part, a second mounting part, a bushing assembly and an electric heating rod, wherein the bushing assembly is mounted between the first mounting part and the second mounting part;
the sleeve assembly is provided with an air inlet pipe, a flow folding pipe and an air outlet pipe from outside to inside, an overflowing channel is reserved between the air inlet pipe and the pipe wall of the flow folding pipe and the pipe wall of the air outlet pipe, one end of the air outlet pipe penetrates through the first installation part or the second installation part and is arranged in a protruding mode, an air inlet hole is formed in the pipe wall of the air inlet pipe, a flow folding hole is formed in the pipe wall of the flow folding pipe, an air outlet hole is formed in the pipe wall of the air outlet pipe, the air inlet hole, the flow folding hole and the air outlet hole are arranged in a staggered mode, and the protruding tail end of the air outlet;
the electric heat pole sets up the baffling pipe with go out between the tuber pipe, the air-supply line with the passageway that overflows between the baffling pipe is for preheating the chamber, the baffling pipe with it is heating chamber to go out the passageway that overflows between the tuber pipe, the inner lane that goes out the tuber pipe is strong hot chamber.
Preferably, the outside of the air inlet is connected with an air inlet joint, and the outside of the air outlet is connected with an air outlet joint.
Preferably, a flow velocity detector is arranged inside the air inlet joint and used for detecting the flow velocity of air entering the air inlet pipe.
Preferably, the outside of the air inlet joint is connected with an air inlet valve, and the air inlet valve is used for adjusting the air flow rate entering the air inlet pipe.
Preferably, the tuber pipe includes strong hot section and wind-guiding section, strong hot section sets up the inside of thimble assembly, the wind-guiding section sets up the outside of thimble assembly, just wind-guiding section detachably connect in the end of strong hot section.
Preferably, a temperature detector is arranged at the tail end of the strong heat section, and the temperature detector is used for detecting the outlet air temperature of the sleeve-type air electric heater.
Preferably, the wiring end of the electric heating rod is fixed on the second installation part or the first installation part, and a power supply protection cover wraps the outside of the wiring end.
Preferably, the outside of power safety cover is provided with adjust knob, adjust knob connect in the wiring end, adjust knob is used for adjusting the total heating power of electric heat pole.
Preferably, the sleeve assembly is a concentric tube structure, and the centers of circles of the air inlet tube, the baffling tube and the air outlet tube are overlapped with each other.
Preferably, the electric heating rods are arranged in a plurality and detachably arranged between the flow folding pipe and the air outlet pipe.
The utility model has the advantages that: after the sleeve type air electric heater is started, heat is transferred to the pipe walls of all the pipes of the sleeve assembly through radiation and heat conduction, air is in a turbulent flow state through multiple reversing of the preheating cavity, the heating cavity and the strong heat cavity, convection heat transfer is carried out between the air and the outer wall of the electric heating rod and the pipe walls of all the pipes of the sleeve assembly, and the outer wall of the air inlet pipe plays a role in heat preservation in the heat transfer process. The air is after flowing through the bushing type air electric heater of this application scheme, and the air is contacted heat transfer by the full flow, has effectively prolonged the convection heat transfer time of cold fluid, and the narrow clearance in preheating chamber, heating chamber and strong hot chamber has increased the area of contact between air current and pipe wall, has effectively improved heat transfer efficiency. And the bushing type air electric heater in this application scheme has succinct inner structure, does not contain heater strip, spoiler, fin etc. and increases the silk dress thing and the protruding thing of air contact heat transfer area, accords with clean air heating needs, especially can be applicable to the aseptic packaging equipment that requires the structure health.
Drawings
The accompanying drawings are provided to further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.
Fig. 1 is a perspective view of an embodiment of the present invention.
Fig. 2 is a top view of an embodiment of the present invention.
Fig. 3 is a cross-sectional view a-a of fig. 2.
Fig. 4 is a partial schematic structural view (arrows indicate gas flow directions) of an embodiment of the present invention.
Fig. 5 is a front view of an embodiment of the present invention.
Fig. 6 is a sectional view of B-B in fig. 5.
Wherein: a first mounting portion 1; a second mounting portion 2; a sleeve assembly 3; an air inlet joint 311; an air inlet pipe 31; a baffle tube 32; an air outlet pipe 33; an air outlet joint 331; a strong hot section 332; an air guiding section 333; an air inlet hole 301; an orificial orifice 302; an air outlet 303; an air outlet 304; a preheating chamber 305; a heating cavity 306; a hot chamber 307; an electric heating rod 4; a power supply protection cover 5; the knob 51 is adjusted.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The bushing type air electric heater comprises a first mounting part 1, a second mounting part 2, a bushing assembly 3 and an electric heating rod 4, wherein the bushing assembly 3 is mounted between the first mounting part 1 and the second mounting part 2;
the sleeve component 3 is provided with an air inlet pipe 31, a baffling pipe 32 and an air outlet pipe 33 from outside to inside, an overflowing channel is reserved between the air inlet pipe 31, the baffling pipe 32 and the pipe wall of the air outlet pipe 33, one end of the air outlet pipe 33 penetrates through the first installation part 1 or the second installation part 2 and is arranged in a protruding mode, an air inlet hole 301 is formed in the pipe wall of the air inlet pipe 31, a baffling hole 302 is formed in the pipe wall of the baffling pipe 32, an air outlet hole 303 is formed in the pipe wall of the air outlet pipe 33, the air inlet hole 301, the baffling hole 302 and the air outlet hole 303 are arranged in a staggered mode, and the protruding tail end of the air outlet pipe 33 is an air outlet 304;
the electric hot rod 4 sets up the baffling pipe 32 with go out between the tuber pipe 33, the air-supply line 31 with the passageway that overflows between the baffling pipe 32 is preheating chamber 305, baffling pipe 32 with the passageway that overflows between the tuber pipe 33 is heating chamber 306, the inner channel that goes out tuber pipe 33 is strong hot chamber 307.
In the traditional air heater, if a heat exchanger is adopted for heat transfer, a heat medium inlet and outlet pipeline needs to be connected, and meanwhile, a temperature control part has a plurality of valves, so that the overall size of the heater is large, the use and the installation are inconvenient, and the distributed multi-point use is inconvenient; if the traditional electric heater is adopted, because the air flow rate is high, the heating time of the electric heater contacting with air is short, the temperature of the air at the outlet of the heater is often too low to meet the use requirement, and in order to improve the outlet temperature, the method of prolonging the contact heating time of the air is often adopted, namely, fins are additionally arranged or the heating area is improved by using a wire mesh mode; or to increase the power of the electric heater. These measures often result in either inefficient heating or too many dead corners in the heater structure to be sanitary and convenient for use in applications requiring cleanliness.
A sleeve type air electric heater, as shown in figure 1-6, comprises a first mounting part 1, a second mounting part 2, a sleeve component 3 and an electric heating rod 4, wherein the sleeve component 3 is internally provided with an air inlet pipe 31, a deflection pipe 32 and an air outlet pipe 33 from outside to inside, a flow passage is reserved among the pipe walls of the air inlet pipe 31, the deflection pipe 32 and the air outlet pipe 33, the pipe wall of the air inlet pipe 31 is provided with an air inlet hole 301, the pipe wall of the deflection pipe 32 is provided with a deflection hole 302, the pipe wall of the air outlet pipe 33 is provided with an air outlet hole 303, and the air inlet hole 301, the deflection hole 302 and the air outlet hole 303 are arranged in a staggered mode; one end of the air outlet pipe 33 penetrates through the first mounting part 1 or the second mounting part 2 and is arranged in a protruding mode, and the tail end of the air outlet pipe 33 is an air outlet 304; through set up the hole of mutual dislocation on the pipe wall of thimble assembly 3, guide gaseous flow direction in thimble assembly 3 inside, make air get into casing way formula air electric heater after, successively through fresh air inlet 301, baffling hole 302 and exhaust vent 303, flow out from air outlet 304 at last, form inside and outside and inside circuitous passageway that overflows in thimble assembly 3, compact structure, small, effectively prolonged the gaseous dwell time in thimble assembly 3, the time that air contacts bushing type air electric heater is longer, thereby make gaseous heating more abundant, the air-out temperature reaches operation requirement.
The electric heating rod 4 is arranged between the deflection pipe 32 and the air outlet pipe 33, so that a preheating cavity 305 of air is formed between the air inlet pipe 31 and the deflection pipe 32, and the air enters the sleeve type electric heater and is preheated at first; a heating cavity 306 for air is formed between the baffling pipe 32 and the air outlet pipe 33, and when the air enters the heating cavity, the air is rapidly heated because the air is directly contacted with the electric heating rod 4; the inside of the outlet duct 33 forms a strong thermal cavity 307 for air, which is further heated at this time and the heat is further intensified. The preheating cavity 305, the heating cavity 306 and the strong heat cavity 307 are matched to heat the gas entering the sleeve type air electric heater, so that the outlet air temperature of the sleeve type air electric heater is improved under the condition that the electric heating rod 4 is at a lower heating power, the overall heating efficiency of the sleeve type air electric heater is improved, and energy is saved. It should be noted that, when the air electric heater stops working, hot air is reserved in the air electric heater, and outside cold air is flushed into the air electric heater, and impurities carried by air flow formed by outside cold air may enter the air electric heater, so that the electric heating rod 4 as a core component of the sleeve-type air electric heater is not damaged, and the service life of the electric heating rod 4 is effectively prolonged, and the electric heating rod 4 is arranged between the baffle pipe 32 and the air outlet pipe 33, so that the damage of the sleeve-type air electric heater can be effectively prevented, and the service life is prolonged. It is further explained that the sleeve type air electric heater in the scheme of the application has a simple internal structure, does not contain heating wires, spoilers, radiating fins and other silk objects and projections which enlarge the air contact heat transfer area, meets the heating requirement of clean air, and the used electric heating rod has the outstanding characteristics of sanitary and simple structure, and particularly can be used for sterile packaging equipment which requires the sanitary structure.
The working principle of the sleeve type air electric heater is as follows: air enters the electric air heater from the air inlet holes 301 of the bushing type electric air heater, is first preliminarily heated in the preheating chamber 305, and then enters the heating chamber 306 through the baffle holes 302 located at the opposite end of the air inlet holes 301, and the electric heating rod 4 is installed in the heating chamber 306, and the air is heated while flowing in the axial direction of the bushing assembly 3; then, the air enters the air outlet pipe 33 through the air outlet hole 303 located at the position opposite to the end of the deflection hole 302, then the air is further heated in the inner section of the sleeve assembly 3, namely, in the strong heat chamber 307 through the air outlet pipe 33, and finally the air flows out from the air outlet 304 of the air outlet pipe, thereby completing the whole heating process.
After the electric heater is started, heat is transferred to the tube walls of the tubes of the sleeve assembly 3 through radiation and heat conduction, air is in a turbulent flow state through multiple reversals in the preheating cavity 305, the heating cavity 306 and the strong heat cavity 307, the air and the outer wall of the electric heating rod 4 and the tube walls of the tubes of the sleeve assembly 3 are subjected to convective heat transfer, and the outer wall of the air inlet tube 31 plays a role in heat preservation in the heat transfer process. After the air flows through the sleeve type air electric heater in the scheme of the application, the air is in contact heat transfer in the whole process, the convection heat transfer time of cold fluid is effectively prolonged, the narrow gaps among the preheating cavity 305, the heating cavity 306 and the strong heat cavity 307 increase the contact area between the air flow and the pipe wall, and the heat transfer efficiency is effectively improved.
Preferably, the pipe diameter of the sleeve pipe assembly 3 is variable, and the diameter of the sleeve pipe assembly 3 can be changed according to the air flow to be heated, so that sleeve type air electric heaters of different pipe diameter series can be manufactured; the length of the sleeve pipe assembly 3 is variable, the length of the sleeve pipe assembly 3 can be changed according to the limitation of use conditions, sleeve pipe type electric air heaters with different length series are manufactured, and the applicability of the sleeve pipe type electric air heater is further improved.
Preferably, the material of the sleeve assembly 3 may be plastic, carbon steel or stainless steel, and the air electric heater of different materials may be manufactured according to different properties of heated air, such as ordinary air or sterile air.
Preferably, the baffling pipe 32 the air outlet pipe 33 is detachably mounted on the first mounting part 1 and between the second mounting parts 2, and the detachable sleeve type air electric heater structure is convenient for sanitary cleaning of the inside of the heater, so that the heater can better meet the heating requirement of clean air.
More specifically, an air inlet connector 311 is connected to the outside of the air inlet hole 301, and an air outlet connector 331 is connected to the outside of the air outlet 304.
The outside of the air inlet hole 301 is connected with an air inlet joint 311, the air inlet joint 311 can be externally connected with a fan, an air compressor and other equipment for changing the air flow rate, the air inlet joint 311 can also be externally connected with air sterilizing filters and other equipment capable of generating air with different properties, so that the electric heater is more widely used, and the applicability of the sleeve type air electric heater is improved; the outside of the air outlet 304 is connected with an air outlet joint 331, and the air outlet joint 331 can be externally connected with any equipment needing hot air, so that the applicability of the sleeve-type air electric heater is further improved.
Further, a flow velocity detector is disposed inside the air inlet connector 311, and the flow velocity detector is used for detecting the flow velocity of air entering the air inlet pipe 31.
In one embodiment of the present invention, a flow rate detector (not shown) is disposed inside the air inlet connector 311 for detecting the flow rate of air entering the air inlet pipe 31. Specifically, if the air flow rate is high, the heating time of the electric heater contacting with the air is short, and the temperature of the air at the air outlet 304 of the heater is too low to meet the use requirement of an operator, the operator can obtain the data of the air flow rate according to the flow rate detector in the air inlet connector 311, so as to adjust the air flow rate of the external equipment connected with the air inlet connector 311, and the operator can make adjustment according to the actual situation, so that the adjustability and the applicability of the sleeve-type electric air heater are enhanced, the structure is simple, the performance is reliable, and the requirements of the user are met.
To be more specific, an air inlet valve is connected to the outside of the air inlet connector 311, and the air inlet valve is used for adjusting the flow rate of air entering the air inlet pipe 31.
In one embodiment of the present application, an air inlet valve (not shown) is connected to the outside of the air inlet connector 311, and is used for adjusting the flow rate of air entering the air inlet pipe 31. Specifically, if the air flow rate is high, the heating time of the electric heater contacting with the air is short, and the temperature of the air at the air outlet 304 of the electric heater is too low to meet the use requirement of an operator, the operator can adjust the air flow rate entering the air inlet pipe 31 through the air inlet valve, so that the performance of the sleeve-type air electric heater can be adjusted according to the actual situation, the adjustability and the applicability of the electric heater are enhanced, the structure is simple, the performance is reliable, and the requirements of the user are met.
More specifically, the air outlet pipe 33 includes a strong heat section 332 and an air guiding section 333, the strong heat section 332 is disposed inside the casing assembly 3, the air guiding section 333 is disposed outside the casing assembly 3, and the air guiding section 333 is detachably connected to a terminal of the strong heat section 332.
The air outlet pipe 33 comprises a strong heat section 332 and an air guide section 333, the strong heat section 332 is arranged inside the sleeve assembly 3, a strong heat cavity 307 for air is formed inside the strong heat section 332, the air is further heated at the moment, and the heat is further strengthened. The air guide section 333 is arranged outside the sleeve pipe assembly 3, and the air guide section 333 is used for guiding the flow direction of the air and outputting the air further heated by the strong heat section 332 to the outside of the sleeve pipe type air electric heater;
the air guide section 333 is detachably connected to the tail end of the strong heat section 332, and the shape of the air nozzle of the air guide section 333 can be changed appropriately according to different objects using hot air, specifically, if the sterilized packaging bag needs to be dried by using sterile hot air to reduce the residual sterilizing agent of the material, the air guide section 333 with the rectangular air nozzle shape can be used to dry the rectangular packaging bag more quickly and uniformly; if the sterilized packaging bottle needs to be dried by using sterile hot air so as to reduce the bactericide residue of the material, the air guide section 333 with the shape of a circular air nozzle with a small diameter can be used, so that the sterile hot air can be intensively output and the inside of the packaging bottle can be dried by the narrow bottle nozzle of the packaging bottle. The air guide section 333 may be detachably connected to the end of the strong hot section 332, and the length, shape, and the like of the air guide section 333 may be changed as appropriate depending on the position of the object using the hot air.
To explain further, the end of the strong heat section 332 is provided with a temperature detector, and the temperature detector is used for detecting the outlet air temperature of the sleeve-type electric air heater.
The tail end of the strong heat section 332 is provided with a temperature detector, and the temperature detector is used for detecting the outlet air temperature of the sleeve type air electric heater. If the temperature of the air at the heater air outlet 304 is too low to meet the use requirements of an operator or the air outlet temperatures of the hot air required by different use objects are different, the operator can make corresponding adjustment according to the air outlet temperature detected by the temperature detector, the performance of the sleeve type air electric heater can be adjusted according to the actual situation by the arrangement of the temperature detector, the adjustability and the applicability of the electric heater are enhanced, the structure is simple, the performance is reliable, and the requirements of the user are met.
In a further description, the terminal 41 of the electric heating rod 4 is fixed to the second mounting portion 2 or the first mounting portion 1, and the power protection cover 5 is wrapped outside the terminal 41.
The wiring terminals 41 of the electric heating rods 4 are fixed on the first mounting part 1 or the second mounting part 2, and the wiring terminals 41 of the electric heating rods 4 are also uniformly fixed on the first mounting part 1 or the second mounting part 2, so that the technical problems that an electric heater in the prior art has various wiring and is difficult to use, mount and arrange are solved, the connection structure of the wiring terminals is simplified, and the use of an operator is facilitated; and the power supply protection cover 5 is wrapped outside the terminal 41, so that the use safety of an operator can be effectively ensured.
Preferably, when one end of the air outlet pipe 33 penetrates through the first mounting part 1 and is arranged in a protruding manner, the wiring terminal 41 of the electric heating rod 4 is fixed to the second mounting part 2; the one end of air-out pipe 33 runs through during second installation department 2 and the outstanding setting, electric hot rod 4's wiring end 41 is fixed in first installation department 1, rational in infrastructure, convenient operation.
Furthermore, an adjusting knob 51 is disposed outside the power protection cover 5, the adjusting knob 51 is connected to the terminal 41, and the adjusting knob 51 is used for adjusting the total heating power of the electric heating rod 4.
An adjusting knob 51 is arranged outside the power supply protection cover 5, the adjusting knob 51 is connected to the terminal 41 (the connection mode is not shown in the figure), the adjusting knob 51 is used for adjusting the total heating power of the electric heating rod 4, firstly, the total machine power of the air electric heater can be improved through the adjusting knob 51 to shorten the temperature rise time of the sleeve-type air electric heater, so that an operator can start the machine to operate, the air entering the air electric heater can reach the required temperature in a short time, and the efficiency is improved; secondly, if the temperature of the air at the air outlet 304 of the heater is too low to meet the operating requirements of the operator, or the air outlet temperatures of the hot air required by different users are different, the operator can adjust the total heating power of the electric heating rod 4 by the adjusting knob 51, so that the air outlet temperature meets the required requirements, the adjustability and the applicability of the electric heater are enhanced, the structure is simple, the performance is reliable, and the requirements of the user are further met.
More specifically, the sleeve assembly 3 has a concentric tube structure, and the centers of the air inlet tube 31, the baffle tube 32 and the air outlet tube 33 are coincident with each other.
The sleeve pipe assembly 3 is of a concentric pipe structure, the centers of circles of the air inlet pipe 31, the baffle pipe 32 and the air outlet pipe 33 are overlapped with each other, so that the cross-sectional shapes of the preheating cavity 305 and the heating cavity 306 form circular rings with the same ring width, gas is fully heated when entering the preheating cavity 305 and the heating cavity 306, the gas is uniformly heated, and the heat exchange efficiency of the sleeve type air electric heater is improved.
More specifically, the electric heating rod 4 is provided in plurality, and the electric heating rod 4 is detachably installed between the folding pipe 32 and the air outlet pipe 33.
The electric heating rod 4 is provided in plurality. Firstly, the temperature of the preheating cavity 305 is improved, and the heating time of the air electric heater is effectively shortened; secondly, a plurality of electric heating rods 4 are arranged in the heating cavity 306, which is beneficial to quickly and uniformly heating air in the heating cavity 306; thirdly, a plurality of electric heat poles 4 are arranged around the air outlet pipe 33, so that the heat inside the air outlet pipe 33 is effectively gathered and heated, the strong heat effect is effectively improved, and the air outlet temperature of the sleeve type air electric heater is further improved. Further, the electric heating rod 4 is detachably installed between the folding pipe 32 and the air outlet pipe 33, while the bushing type air electric heater can be installed, replaced and maintained on line, the bushing type air electric heater can change the arrangement number and the arrangement mode of the electric heating rods 4 in the air electric heater by installing and detaching the electric heating rod 4 according to the air outlet temperature requirement of the used air, the arrangement mode specifically means that the electric heating rods 4 can be symmetrically arranged around the air outlet pipe 33, or the electric heating rods 4 can adopt the arrangement mode which is arranged in a single circle or in multiple circles and the like and meets the use requirement, and the bushing type air electric heater is mainly used for changing the total heating power of the air electric heater and improving the applicability of the bushing type air electric heater.
Preferably, the arrangement direction of the electric heating rod 4 is parallel to the length direction of the sleeve assembly 3, and the length of the electric heating rod 4 is equal to the length of the sleeve assembly 3. The arrangement direction of the electric heating rod 4 is parallel to the length direction of the sleeve pipe assembly 3, so that gas can smoothly flow in the electric heater, the heating time can be shortened, and the efficiency can be improved; and the length of the electric heating rod 4 is equal to that of the sleeve assembly 3, the arrangement space of the electric heating rod 4 in the sleeve assembly 3 is fully utilized, so that heat is fully dispersed in any space in the sleeve assembly 3, after the air enters the air inlet pipe 31, the air is contacted and transferred in the whole process, and the convection heat transfer time of cold fluid is effectively prolonged.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A sleeve type air electric heater is characterized in that: the electric heating device comprises a first mounting part, a second mounting part, a bushing assembly and an electric heating rod, wherein the bushing assembly is mounted between the first mounting part and the second mounting part;
the sleeve assembly is provided with an air inlet pipe, a flow folding pipe and an air outlet pipe from outside to inside, an overflowing channel is reserved between the air inlet pipe and the pipe wall of the flow folding pipe and the pipe wall of the air outlet pipe, one end of the air outlet pipe penetrates through the first installation part or the second installation part and is arranged in a protruding mode, an air inlet hole is formed in the pipe wall of the air inlet pipe, a flow folding hole is formed in the pipe wall of the flow folding pipe, an air outlet hole is formed in the pipe wall of the air outlet pipe, the air inlet hole, the flow folding hole and the air outlet hole are arranged in a staggered mode, and the protruding tail end of the air outlet;
the electric heat pole sets up the baffling pipe with go out between the tuber pipe, the air-supply line with the passageway that overflows between the baffling pipe is for preheating the chamber, the baffling pipe with it is heating chamber to go out the passageway that overflows between the tuber pipe, the inner lane that goes out the tuber pipe is strong hot chamber.
2. A telescopic air electric heater according to claim 1, characterised in that: the outside connection of fresh air inlet has the air inlet to connect, the outside connection of air outlet has the air-out to connect.
3. A telescopic air electric heater according to claim 2, characterised in that: the inside of air inlet joint is provided with the velocity of flow detector, the velocity of flow detector is used for detecting the entering air velocity of air-supply line.
4. A telescopic air electric heater according to claim 2, characterised in that: the air inlet connector is connected with an air inlet valve outside, and the air inlet valve is used for adjusting the air flow rate entering the air inlet pipe.
5. A telescopic air electric heater according to claim 1, characterised in that: the tuber pipe includes strong hot section and wind-guiding section, strong hot section sets up the inside of thimble assembly, the wind-guiding section sets up the outside of thimble assembly, just wind-guiding section detachably connect in the end of strong hot section.
6. A telescopic air electric heater according to claim 5, in which: the tail end of the strong heat section is provided with a temperature detector, and the temperature detector is used for detecting the air outlet temperature of the sleeve type air electric heater.
7. A telescopic air electric heater according to claim 1, characterised in that: the wiring end of electric heat pole is fixed in the second installation department or first installation department, the outside parcel of wiring end has the power safety cover.
8. A telescopic air electric heater according to claim 7, in which: the outside of power safety cover is provided with adjust knob, adjust knob connect in the wiring end, adjust knob is used for adjusting the total heating power of electric heat pole.
9. A telescopic air electric heater according to claim 1, characterised in that: the thimble assembly is concentric tubular construction, the air-supply line the baffling pipe with the centre of a circle of going out the tuber pipe coincides each other.
10. A telescopic air electric heater according to claim 1, characterised in that: the electric heating rod is provided with a plurality of, electric heating rod detachably installs between baffling pipe and air-out pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668146.1U CN210089122U (en) | 2019-05-10 | 2019-05-10 | Sleeve type air electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920668146.1U CN210089122U (en) | 2019-05-10 | 2019-05-10 | Sleeve type air electric heater |
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| Publication Number | Publication Date |
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| CN210089122U true CN210089122U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920668146.1U Active CN210089122U (en) | 2019-05-10 | 2019-05-10 | Sleeve type air electric heater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173888A (en) * | 2019-05-10 | 2019-08-27 | 佛山建邦机械有限公司 | A kind of bushing type electric airheater |
| CN111426053A (en) * | 2020-04-07 | 2020-07-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | Pressure-resistant device of electromagnetic induction air heater |
| CN113108466A (en) * | 2021-03-22 | 2021-07-13 | 青岛海尔空调器有限总公司 | Warm air blower control method and device, warm air blower and storage medium |
| CN115371256A (en) * | 2022-08-29 | 2022-11-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Heat storage and direct heating dual-purpose electromagnetic induction type air electric heater and using method thereof |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173888A (en) * | 2019-05-10 | 2019-08-27 | 佛山建邦机械有限公司 | A kind of bushing type electric airheater |
| CN111426053A (en) * | 2020-04-07 | 2020-07-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | Pressure-resistant device of electromagnetic induction air heater |
| CN113108466A (en) * | 2021-03-22 | 2021-07-13 | 青岛海尔空调器有限总公司 | Warm air blower control method and device, warm air blower and storage medium |
| CN115371256A (en) * | 2022-08-29 | 2022-11-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Heat storage and direct heating dual-purpose electromagnetic induction type air electric heater and using method thereof |
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Address after: 528000 No.28, area C, Sanshui Industrial Park, Sanshui District, Foshan City, Guangdong Province (F1) (application for residence) Patentee after: Guangdong Jianbang Machinery Co.,Ltd. Address before: 528000 Sanshui center science and Technology Industrial Zone, Foshan City, Guangdong Province Patentee before: FOSHAN JIANBANG MACHINERY Co.,Ltd. |