Heating module in air heater
By using a liquid heat transfer medium and a serpentine heat exchanger structure in the air heater, the problems of easy damage to electric heating wires and high energy consumption are solved, achieving uniform heating of the gas, reducing energy consumption, and extending the equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-03-24
AI Technical Summary
Existing air heaters using electric heating wires are prone to damage and consume a lot of energy during prolonged use, affecting their service life and efficiency.
The heating chamber is equipped with a liquid heat transfer medium, which is heated by a heating wire. The heat stored in the heat transfer medium is used to heat the gas in the heat exchange tube. The heat exchange tube is immersed in the heat transfer medium, and the gas is heated evenly by combining a flow divider and a serpentine structure.
It achieves uniform heating of the gas, reduces the working time of the heating wire, lowers energy consumption, and extends service life.
Smart Images
Figure CN224034025U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to heating technical field especially relates to a heating module in air heater. BACKGROUND
[0002] Air heater is the electric heating equipment that mainly carries out heating to air flow, and is often used in chemical industry to heat air, and melt-blowing process needs a large amount of hot air. In the use process, the compressed air output by air compressor is delivered to air heater after dehumidification and filtration, then is heated, and is then sent to melt-blowing die head assembly for use.
[0003] At present, air heater generally adopts electric heating wire to heat the air flow passing through, and heating using electric heating wire can realize the advantages of fast temperature rise and rapid temperature regulation, but in long-time use, electric heating wire is easy to be damaged and has large energy consumption, which affects service life. UTILITY MODEL CONTENT
[0004] The utility model discloses a heating module in air heater, which solves the problem of easy damage and large energy consumption of electric heating wire in long-time use in the prior art.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A heating module in air heater, comprising a heating box, further comprising a top cover detachably arranged on the top of the heating box, a heat-conducting medium in liquid state is arranged in the heating box, at least one group of heating wires for heating the heat-conducting medium is fixedly arranged in the top cover, and a plurality of heat exchange pipes for conveying gas are fixedly arranged in the top cover, and the plurality of heat exchange pipes are immersed in the heat-conducting medium.
[0007] In order to make the gas flow uniformly into each heat exchange pipe, preferably, a first flow divider and a second flow divider are fixedly arranged in the top cover, and the two ends of the plurality of heat exchange pipes are respectively communicated with the first flow divider and the second flow divider.
[0008] In order to facilitate the flow of gas in the heat exchange pipe, further, an air inlet pipe and an air outlet pipe are fixedly arranged on the top of the top cover, one end of the air inlet pipe is communicated with the first flow divider, and one end of the air outlet pipe is communicated with the second flow divider.
[0009] In order to increase the contact time of gas and heat-conducting medium, preferably, the heat exchange pipes are in a serpentine shape.
[0010] Preferably, a plurality of first heat insulation plates are fixedly arranged in the heating box, a second heat insulation plate is fixedly arranged on the inner wall of the top cover, and the plurality of first heat insulation plates and the second heat insulation plate form a closed box structure.
[0011] Preferably, the top cover is fixedly connected with the heating box through bolts.
[0012] Further, a sealing gasket is fixedly arranged at the bottom of the top cover, and the bottom of the sealing gasket abuts against the top of the heating box.
[0013] Preferably, a temperature sensor for detecting the temperature in the heat-conducting medium is fixedly arranged in the top cover.
[0014] Compared with the prior art, the heating module in the air heater has the following beneficial effects:
[0015] 1. The heating module in the air heater, by arranging the heat-conducting medium in a liquid state in the heating box, using the heating wire to heat the heat-conducting medium, and then immersing the heat exchange pipe for conveying gas in the heat-conducting medium, the heat-conducting medium can continuously heat the gas in the heat exchange pipe by using the heat stored by itself, which can realize uniform heating of the gas in the heat exchange pipe on the one hand, and the heating wire can stop working at this time, which is beneficial to reducing energy consumption and improving service life.
[0016] 2. The heating module in the air heater, by fixedly arranging the first and second flow dividing bases on the top cover, the gas can be evenly divided into the plurality of heat exchange pipes through the first flow dividing base, and then gathered in the second flow dividing base after heat exchange, thereby improving the use effect.
[0017] The parts not involved in the device are the same as or can be realized by the prior art, the heating module in the air heater, by arranging the heat-conducting medium in a liquid state in the heating box, using the heating wire to heat the heat-conducting medium, and then immersing the heat exchange pipe for conveying gas in the heat-conducting medium, the heat-conducting medium can continuously heat the gas in the heat exchange pipe by using the heat stored by itself, which can realize uniform heating of the gas in the heat exchange pipe on the one hand, and the heating wire can stop working at this time, which is beneficial to reducing energy consumption and improving service life. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 Structure diagram of the heating module in the air heater according to the present application Figure One ;
[0019] Figure 2 Structure diagram of the heating module in the air heater according to the present application Figure Two ;
[0020] Figure 3 Sectional view of the heating module in the air heater according to the present application
[0021] Figure 4A kind of heating module top cover structure diagram in air heater is provided in the utility model.
[0022] In the drawing: 1, heating box;101, first heat insulating plate;2, top cover;201, second heat insulating plate;202, sealing gasket;3, heat exchange pipe;301, first shunt seat;302, second shunt seat;303, air inlet pipe;304, air outlet pipe;4, heating wire;401, connecting seat;5, temperature sensor;6, liquid level sensor. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.
[0024] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as the limitation of the utility model.
[0025] Embodiment:
[0026] Reference Figures 1-4The utility model provides an air heater's heating module, including heating box 1, heating box 1 is the cuboid structure, still including the detachable top cover 2 of setting in heating box 1 top, top cover 2 can adopt the buckle or latch etc. with heating box 1 detachable connection, here, we will top cover 2 preferably through bolt and heating box 1 fixed connection, easy to assemble and disassemble, fixed reliable, and fixedly set up sealing washer 202 at top cover 2 bottom, the bottom of sealing washer 202 and heating box 1 top are resisted, can improve the sealing effect between top cover 2 and heating box 1, setting up the heat conducting medium of being liquid in heating box 1, heat conducting medium can be water or the oil that can be heated, here, we preferably for silicon oil, can keep stable in -50 DEG C to 300 DEG C even higher range, almost do not react with other substances, strong corrosion resistance, and harmless to human body, fixedly set up at least one group of heating wire 4 for the heat conducting medium heating in top cover 2, fixedly set up the connecting seat 401 in top cover 2, the both ends of heating wire 4 are fixedly connected with connecting seat 401 respectively, and the connecting terminal extends out of top cover 2, it is convenient to power supply, here, preferably for two groups of heating wire 4, and for electric heating, fixedly set up temperature sensor 5 for detecting the temperature in heat conducting medium in top cover 2, here, we will set up two groups of temperature sensor 5, one group is used to detect the highest temperature of heat conducting medium, another group is used to detect the lowest temperature of heat conducting medium, that is to say, the temperature of heat conducting medium is kept in certain temperature interval, when using, through temperature sensor 5, on the one hand, the temperature of heat conducting medium can be detected, then the heating temperature of heating wire 4 is adjusted, on the other hand, when the temperature of heat conducting medium reaches the highest temperature set, heating wire 4 can be closed, which helps to reduce the use time of heating wire 4, reduce energy consumption and improve service life, when the temperature is lower than the lowest temperature set, heating wire 4 can be started again to heat the heat conducting medium, ensure the heating effect of air, fixedly set up pressure relief pipe on top cover 2 for releasing the pressure in heating box 1, and fixedly set up multiple heat exchange pipes 3 for conveying gas in top cover 2, heat exchange pipe 3 is provided with two to ten, preferably five, when using, multiple heat exchange pipes 3 are immersed in heat conducting medium, and fixedly set up liquid level sensor 6 for detecting the liquid level of heat conducting medium in top cover 2, when the liquid level of heat conducting medium is lower than the set height, the residual heat conducting medium should be taken out, and the heat conducting medium is added to heating box 1 again, to reduce the dry burning phenomenon.
[0027] When using, by setting the heat conducting medium of being liquid in heating box 1, using heating wire 4 to heat the heat conducting medium, then the heat exchange pipe 3 for conveying gas is immersed in heat conducting medium, heat conducting medium can continuously heat the gas in heat exchange pipe 3 using the heat stored by itself, on the one hand, it can realize the uniform heating of the gas in heat exchange pipe 3, on the other hand, heating wire 4 can stop working at this time, which is beneficial to reduce energy consumption and improve service life.
[0028] With reference to Figure 3 And Figure 4 The first shunt seat 301 and the second shunt seat 302 are fixedly arranged in the top cover 2, and the plurality of heat exchange pipes 3 are communicated with the first shunt seat 301 and the second shunt seat 302 at two ends, respectively, in use, the gas can be evenly shunted into the plurality of heat exchange pipes 3 through the first shunt seat 301 fixedly arranged on the top cover 2, and then re-converges into the second shunt seat 302 after heat exchange, thereby improving the use effect.
[0029] With reference to Figures 1-3 The gas inlet pipe 303 and the gas outlet pipe 304 are fixedly arranged on the top cover 2, one end of the gas inlet pipe 303 is communicated with the first shunt seat 301, and one end of the gas outlet pipe 304 is communicated with the second shunt seat 302, in use, the gas can enter the first shunt seat 301 through the gas inlet pipe 303 fixedly arranged on the top cover 2, and then enter each heat exchange pipe 3 after shunting, and after heat exchange, the plurality of gas streams re-converge into the second shunt seat 302, and then flow out from the gas outlet pipe 304, for subsequent use.
[0030] With reference to Figures 2-4 Here, the heat exchange pipe 3 is in a serpentine shape structure, which can prolong the contact time between the gas and the heat-conducting medium, and improve the heat exchange effect.
[0031] With reference to Figure 3 A plurality of first heat insulation plates 101 are fixedly arranged in the heating box 1, the first heat insulation plates 101 are provided with five, and a second heat insulation plate 201 is fixedly arranged on the inner wall of the top cover 2, the plurality of first heat insulation plates 101 and the second heat insulation plate 201 form a closed box structure, that is, when the top cover 2 covers the heating box 1, the second heat insulation plate 201 can become an inner cover covering the first heat insulation plates 101, which can reduce the heat dissipation to the outside during use, and is helpful for heat preservation.
[0032] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A heating module in an air heater, comprising a heating chamber (1), characterized in that, It also includes the removal of the top cover (2) set on the top of the heating box (1), the heating box (1) is provided with a liquid heat-conducting medium, the top cover (2) is fixedly provided with at least one set of heating wires (4) for heating the heat-conducting medium, and the top cover (2) is fixedly provided with multiple heat exchange tubes (3) for transporting gas, and the multiple heat exchange tubes (3) are immersed in the heat-conducting medium.
2. The heating module in an air heater according to claim 1, characterized in that, The top cover (2) is fixedly provided with a first flow divider (301) and a second flow divider (302), and the two ends of the plurality of heat exchange tubes (3) are respectively connected to the first flow divider (301) and the second flow divider (302).
3. The heating module in an air heater according to claim 2, characterized in that, The top cover (2) is fixedly provided with an air inlet pipe (303) and an air outlet pipe (304). One end of the air inlet pipe (303) is connected to the first diverter seat (301), and one end of the air outlet pipe (304) is connected to the second diverter seat (302).
4. The heating module in an air heater according to claim 1, characterized in that, The heat exchange tube (3) has a snake-shaped structure.
5. The heating module in an air heater according to claim 1, characterized in that, The heating box (1) is fixedly provided with multiple first heat insulation plates (101), and the inner wall of the top cover (2) is fixedly provided with a second heat insulation plate (201). The multiple first heat insulation plates (101) and the second heat insulation plate (201) form a closed box structure.
6. The heating module in an air heater according to claim 1, characterized in that, The top cover (2) is fixedly connected to the heating box (1) by bolts.
7. The heating module in an air heater according to claim 6, characterized in that, A sealing gasket (202) is fixedly installed at the bottom of the top cover (2), and the bottom of the sealing gasket (202) abuts against the top of the heating box (1).
8. The heating module in an air heater according to claim 1, characterized in that, A temperature sensor (5) for detecting the temperature inside the heat-conducting medium is fixedly installed inside the top cover (2).