Electric heater based on air separation equipment

Abstract

The utility model relates to the technical field of heaters, in particular to an electric heater based on air separation equipment, which comprises an air input channel, a hot air output channel and an air separation heating pipe. The air input channel and the hot air output channel communicate with the two ends of the air separation heating pipe correspondingly, the output end of the hot air output channel communicates with air separation equipment, the outer side of the air separation heating pipe comprises an electromagnetic heating ring, and a speed reduction channel is installed on the side, close to the air input channel, of the interior of the air separation heating pipe. A plurality of groups of soaking nets are arranged in the air separation heating pipe on one side of the rear part of the speed reduction channel at intervals and are used for uniformly heating retarded air, so that the temperatures of all areas are kept consistent after the retarded air is heated, and then the retarded air is output along the hot air output channel for subsequent separation operation, namely, the retarded air is separated under the action of the speed reduction channel and the soaking nets; and it is guaranteed that air output along the hot air output channel is evenly and fully heated.

Description

Technical Field

[0001] The utility model relates to the technical field of heaters, specifically an electric heater based on an air separation device. Background Technique

[0002] The electric heater based on an air separation device is a key component used in air separation technology, mainly used to adjust and control the temperature inside the device to ensure the high efficiency, safety and stability of the air separation process. The working principle of the electric heater in the air separation device is mainly based on resistance heating. The specific process is as follows: Current passes through the resistance element: The resistance material (such as nickel-chromium alloy or other metals) of the electric heater will generate heat due to the flow of current after being powered on. Heat transfer: The generated heat is transferred to the inside of the device through a heat conduction medium (usually air) to increase the temperature of the air. Temperature monitoring and control: Usually equipped with temperature sensors (such as thermocouples or thermistors), the temperature of the heater and the environment is monitored in real time, and the current is adjusted through the control system to maintain the set temperature.

[0003] When the electric heater heats the gas in the air separation device, since the temperature transfer gradually moves from the outside of the air flow pipeline towards the inside of the pipeline, and when heating and separating the air, the gas flow speed is generally relatively fast, resulting in a temperature difference between the gas in the middle position and the peripheral gas during heating, which affects the purity during subsequent air separation;

[0004] Therefore, in view of the above existing problems, this technical solution proposes an electric heater based on an air separation device. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric heater based on an air separation device to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solutions: An electric heater based on an air separation device includes an air input channel, a hot air output channel, and an air separation heating tube; the air input channel and the hot air output channel are respectively connected to both ends of the air separation heating tube, and the output end of the hot air output channel is connected to the air separation device. The air to be separated is input into the air separation heating tube along the air input channel for heating, and then is output to the air separation device along the hot air output channel after heating, so as to separate it. The outer side of the air separation heating tube includes an electromagnetic heating coil. After the electromagnetic heating coil is powered on, heat is generated and transmitted radially along the inside of the air separation heating tube to heat the gas flowing inside the air separation heating tube. A deceleration channel is installed on one side of the air separation heating tube close to the air input channel inside the air separation heating tube. The gas flowing along the air input channel is decelerated when passing through the deceleration channel, and the time of flowing inside the deceleration channel is increased, so as to increase the heating time. A plurality of groups of heat equalization meshes are arranged at intervals inside the air separation heating tube on one side behind the deceleration channel. The heat equalization meshes uniformly heat the decelerated air, so that the temperatures of each area are kept consistent after heating, and then are output along the hot air output channel for subsequent separation operations. That is, under the action of the deceleration channel and the heat equalization meshes, it is ensured that the air output along the hot air output channel is uniformly and sufficiently heated.

[0007] Compared with the prior art, the beneficial effects of the present utility model are: By arranging a deceleration channel inside the air separation heating tube to decelerate the flowing air and heating it during contact, it is ensured that the air has sufficient heating time. Then, after passing through the heat equalization mesh, the air is uniformly heated, so that the air heat in each area is consistent, thereby ensuring the purity and efficiency of subsequent heating air for separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a partial front view internal structure schematic diagram of an electric heater based on an air separation device.

[0009] Figure 2 It is a structural schematic diagram of the heat equalization mesh in an electric heater based on an air separation device.

[0010] Figure 3 For Figure 1 The enlarged structural schematic diagram of A in

[0011] Wherein: air input channel 10, hot air output channel 11, air separation heating tube 12, electromagnetic heating coil 13, power-on connection terminal 14, heat preservation layer 15, electromagnetic heating rod 16, metal heat conduction layer 17, metal connection block 18, deceleration channel 19, deceleration branch pipe 21, heat equalization mesh 22, metal connection ring 23, mesh hole 24, impeller hole 25, impeller 26, wheel shaft 27, positioning rod 28. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0013] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0014] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific circumstances.

[0015] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0016] Please refer to Figures 1 - 3, an electric heater based on an air separation device, includes an air input channel 10, a hot air output channel 11, and an air separation heating pipe 12; the air input channel 10 and the hot air output channel 11 are respectively connected to both ends of the air separation heating pipe 12, and the output end of the hot air output channel 11 is connected to the air separation device. The air to be separated is input into the interior of the air separation heating pipe 12 along the air input channel 10 for heating, and then is output into the air separation device along the hot air output channel 11 after heating, so as to separate it. The outside of the air separation heating pipe 12 includes an electromagnetic heating coil 13. After the electromagnetic heating coil 13 is energized, heat is generated and transferred radially along the interior of the air separation heating pipe 12 to heat the gas flowing inside the air separation heating pipe 12. A deceleration channel 19 is installed on one side of the interior of the air separation heating pipe 12 close to the air input channel 10. The gas flowing along the interior of the air input channel 10 is decelerated when passing through the interior of the deceleration channel 19, increasing the flow time inside the deceleration channel 19, thereby increasing the heating time. A plurality of groups of heat equalizing meshes 22 are arranged at intervals inside the air separation heating pipe 12 on one side behind the deceleration channel 19. The heat equalizing meshes 22 evenly heat the decelerated air, so that the temperatures of each region are kept consistent after heating, and then are output along the hot air output channel 11 for subsequent separation operations. That is, under the action of the deceleration channel 19 and the heat equalizing meshes 22, it is ensured that the air output along the hot air output channel 11 is evenly and sufficiently heated.

[0017] In an embodiment of the present invention, the electromagnetic heating coil 13 includes a metal heat conduction layer 17 arranged in the pipe wall of the air separation heating pipe 12. The inner side of the metal heat conduction layer 17 is in communication contact with the interior of the air separation heating pipe 12, and a circle of annularly equally spaced electromagnetic heating rods 16 are arranged on the outer side. Both ends of the electromagnetic heating rods 16 are respectively commonly connected to a metal ring, and power supply connection terminals 14 are connected to the outer sides of the two metal rings at both ends. By respectively inputting high voltage and low voltage to the power supply connection terminals 14 on both sides, and then under the transfer of the metal ring, cooperating with the electromagnetic heating rods 16, electromagnetic induction is generated, thereby generating heat, and conducting heat to the interior of the air separation heating pipe 12 under the transfer of the metal heat conduction layer 17;

[0018] Specifically, a heat insulation layer 15 is arranged on the outer side of the electromagnetic heating rods 16 to prevent heat from being transferred to the outside of the air separation heating pipe 12, resulting in heat loss.

[0019] In an example of the present invention, a horn-shaped structure is provided at the air inlet end of the deceleration channel 19, and a ring of metal connection blocks 18 is installed on the outer wall of the air inlet end in the circumferential direction. The metal connection blocks 18 are fixedly connected to the metal heat conduction layer 17. Through the transmission of the metal connection blocks 18, the heat in the metal heat conduction layer 17 can be directly and quickly transferred into the deceleration channel 19. The deceleration channel 19 is made of a heat-conducting metal material, so that the air flowing inside it can be fully heated. The rear side of the deceleration channel 19 is set as a horizontally arranged cylindrical structure, and a plurality of L-shaped deceleration branch pipes 21 are uniformly communicated along the length direction on the outer wall of the cylindrical structure in the circumferential direction. The air input into the deceleration channel 19 flows backward along the deceleration branch pipes 21 respectively. Through the transfer of the deceleration branch pipes 21 and the reduction of the flow space, the speed of the air flow is reduced. Then, combined with the high temperature outside the deceleration channel 19 and the heat energy transfer of the deceleration channel 19 itself, the air flowing inside it is quickly heated.

[0020] As a preferred embodiment of the present invention, the heat equalization network 22 is set as a circular structure, and a ring of metal connection rings 23 is installed on the outer wall in the circumferential direction. The metal connection rings 23 are fixedly connected to the metal heat conduction layer 17. An impeller hole 25 is opened at the center of the heat equalization network 22. A group of impellers 26 are rotatably connected to the impeller hole 25 through a wheel shaft 27. A plurality of mesh holes 24 are uniformly arranged between the metal connection rings 23 and the impeller hole 25. When the air passes through the heat equalization network 22, it can pass through smoothly by using the aperture of the mesh holes 24, and then the flowing wind energy is used to drive the impellers 26 to rotate, so as to disturb the direction of the gas flow and make it change, and then make full contact with the heat around the inside of the air separation heating pipe 12;

[0021] The metal connection rings 23, the mesh holes 24, and the impellers 26 are all made of metal materials. The metal connection rings 23 are in contact with the metal heat conduction layer 17, and the heat energy in the metal heat conduction layer 17 can be quickly transferred to the mesh holes 24, and then the air flowing through is uniformly heated;

[0022] Specifically, a positioning rod 28 is sleeved on the wheel shaft 27 to control the stable operation of the impellers 26 placed inside the impeller hole 25. By arranging multiple groups of heat equalization networks 22 at intervals, it is convenient to perform multiple heat equalization treatments on the flowing air.

[0023] The working principle of the present utility model is as follows: At the idle part of the device, all the above-mentioned driving components, which refer to power components, electrical components and the adapted power supply, are connected through wires, and the electrical connection is completed for the sequential working order among the electrical components. The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process, and will not explain the electrical control. During operation, the air to be separated is input into the internal of the air separation heating pipe 12 along the air input channel 10. At this time, the energized terminal 14 is energized. Under the cooperation of the electromagnetic heating rod 16 and the metal heat conduction layer 17, high-temperature heat is generated, and then it is transmitted to the internal of the air separation heating pipe 12 along the metal heat conduction layer 17. The air entering the internal of the air separation heating pipe 12 is first decelerated and heated inside the deceleration channel 19 to make it fully contact with the high temperature, and then flows backward through the deceleration branch pipe 21 and is evenly heated inside multiple groups of heat equalizing meshes 22, and is output along the hot air output channel 11 in a state of high temperature and uniform heat, and then is input into the air separation equipment for separation.

[0024] The above has made a detailed description of the preferred embodiment of this patent. However, this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the purpose of this patent.

Claims

1. Electric heater based on air separation equipment, characterized in that, It includes an air input channel (10), a hot air output channel (11), and an air separation heating tube (12); the air input channel (10) and the hot air output channel (11) are respectively connected to both ends of the air separation heating tube (12), the output end of the hot air output channel (11) is connected to the air separation device, an electromagnetic heating coil (13) is included outside the air separation heating tube (12), a deceleration channel (19) is installed on the side of the air separation heating tube (12) close to the air input channel (10) inside, and multiple groups of heat equalizing nets (22) are arranged at intervals inside the air separation heating tube (12) on one side behind the deceleration channel (19).

2. The electric heater based on the air separation device according to claim 1, wherein The electromagnetic heating coil (13) includes a metal heat conduction layer (17) arranged in the tube wall of the air separation heating tube (12), the inner side of the metal heat conduction layer (17) is in communication contact with the inside of the air separation heating tube (12), an annular electromagnetic heating rod (16) evenly distributed at equal intervals is arranged on the outer side, both ends of the electromagnetic heating rod (16) are respectively connected to a metal ring together, and power-on connection terminals (14) are connected to the outer sides of the two metal rings at both ends.

3. The electric heater based on the air separation device according to claim 2, characterized in that, A heat insulation layer (15) is arranged on the outer side of the electromagnetic heating rod (16).

4. The electric heater based on the air separation device according to claim 3, characterized in that, The intake end of the deceleration channel (19) is provided with a horn-shaped structure, and a ring of metal connection blocks (18) is installed on the outer wall of the intake end circumference. The metal connection blocks (18) are fixedly connected to the metal heat conduction layer (17). The deceleration channel (19) is made of a heat-conducting metal material. The rear side of the deceleration channel (19) is set as a horizontally placed cylindrical structure, and a plurality of L-shaped deceleration branch pipes (21) are evenly communicated along the length direction on the outer wall of the cylindrical structure circumference.

5. The electric heater based on the air separation device according to claim 4, wherein, The heat equalizing net (22) is set as a circular structure, a ring of metal connection rings (23) is installed on the outer wall of the circumference, the metal connection rings (23) are fixedly connected to the metal heat conduction layer (17), an impeller hole (25) is opened at the center of the heat equalizing net (22), a group of impellers (26) are rotationally connected inside the impeller hole (25) through a wheel shaft (27), and a plurality of mesh holes (24) are evenly arranged between the metal connection rings (23) and the impeller holes (25).

6. The electric heater based on the air separation device according to claim 5, characterized in that, The metal connection rings (23), the mesh holes (24), and the impellers (26) are all made of metal materials. The metal connection rings (23) are in contact with the metal heat conduction layer (17), and a positioning rod (28) is sleeved on the wheel shaft (27).

Images