Multi-pipeline air heater

Abstract

The utility model relates to the technical field of gas heaters, and discloses a multi-pipeline hot-air blower, which comprises a gas input component, an air inlet interface for inputting gas to be heated and a first sealing cover plate, the air inlet interface is arranged on one side of the first sealing cover plate, and the first sealing cover plate is arranged on the other side of the first sealing cover plate. The first sealing cover plate is provided with a plurality of air inlet holes communicating with the air inlet connector. The gas heating assembly comprises heating pipes and conducting rings, the number of the heating pipes is the same as that of the gas inlet holes, the conducting rings are arranged on the heating pipes in a sleeving mode, the conducting rings are used for being communicated with a power source to heat the heating pipes and further heat to-be-heated gas in the heating pipes, plastic parts are arranged at the two ends of each heating pipe respectively, and the plastic parts are connected with the gas inlet holes in a sealed mode; the gas output assembly comprises an air outlet connector for outputting heated gas and a second sealing cover plate. More gas can be treated at the same time through the multi-pipeline design, the gas heating efficiency is improved, and meanwhile, the situation that the industrial gas to be heated is polluted by metal ions is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas heater especially relates to a multi-pipeline hot -blast fan. BACKGROUND

[0002] Most of the existing gas heaters generally have the shortcomings of low heating efficiency and slow temperature rising speed, which seriously restricts the efficiency and quality of industrial production. Specifically, the existing gas heater often cannot fully utilize the input of fuel or electricity or cannot effectively transfer heat energy to the heated industrial gas during design and operation, resulting in a large amount of heat energy loss in the production process. At the same time, due to the low heating efficiency, the gas heater often needs a longer time to reach the predetermined temperature during the temperature rising process, which not only prolongs the production cycle, but also may affect the quality and performance of the product. SUMMARY

[0003] The main purpose of the utility model is to provide a multi-pipeline hot -blast fan, which aims to solve the technical problems of low heating efficiency and slow temperature rising speed in the process of heating gas by the hot -blast fan.

[0004] To achieve the above purpose, the utility model provides a multi-pipeline hot -blast fan, which comprises a gas input assembly, a first sealing cover plate and an air inlet interface for inputting the gas to be heated, the air inlet interface is installed on one side of the first sealing cover plate, and the first sealing cover plate is provided with a plurality of air inlet holes communicating with the air inlet interface; a gas heating assembly, which comprises a plurality of heating pipes and a conductive ring sleeved on the heating pipes, the conductive ring is used for connecting the power supply to heat the heating pipes and further heat the gas to be heated in the heating pipes, and the both ends of the heating pipes are respectively provided with plastic parts, which are sealingly connected with the air inlet holes; and a gas output assembly, which comprises an air outlet interface for outputting the heated gas and a second sealing cover plate, the air outlet interface is installed on the side of the second sealing cover plate away from the heating pipes, the second sealing cover plate is provided with an air outlet hole corresponding to the air inlet hole and communicating with the air outlet interface, and the plastic part away from the air inlet hole is sealingly connected with the air outlet hole.

[0005] Preferably, a plurality of fixing columns are uniformly and interval ly arranged on the side of the gas heating device, and the both ends of the fixing columns are respectively embedded in the first sealing cover plate and the second sealing cover plate and are respectively threadedly connected with the first sealing cover plate and the second sealing cover plate.

[0006] Preferably, the first sealing cover plate is provided with a first strip-shaped groove between the two fixing columns, a first nut strip for balancing stress is arranged in the first strip-shaped groove, and the first nut strip is in threaded connection with the first sealing cover plate; the second sealing cover plate is provided with a second strip-shaped groove between the two fixing columns, a second nut strip for balancing stress is arranged in the second strip-shaped groove, and the second nut strip is in threaded connection with the second sealing cover plate.

[0007] Preferably, a first sealing ring is arranged between the air inlet and the first sealing cover plate, and a second sealing ring is arranged between the air outlet and the second sealing cover plate.

[0008] Preferably, the first nut strip is in threaded connection with the first sealing cover plate, the first sealing ring and the air inlet in sequence, and the first sealing ring is pressed between the first sealing cover plate and the air inlet; the second nut strip is in threaded connection with the second sealing cover plate, the second sealing ring and the air outlet in sequence, and the second sealing ring is pressed between the second sealing cover plate and the air outlet.

[0009] Preferably, a heat insulation cover is arranged on the side of the gas heating assembly, and the heat insulation cover is connected with the first sealing cover plate and the second sealing cover plate at two ends respectively.

[0010] Preferably, a junction box is further arranged on one side of the gas heating assembly, an alternating current contactor is arranged in the junction box and electrically connected with an external power supply, and the conductive ring is electrically connected with the alternating current contactor.

[0011] Preferably, the conductive ring comprises an arc-shaped body sleeved on the surface of the heating pipe and a connecting line part arranged at two ends of the arc-shaped body, the connecting line part is electrically connected with the alternating current contactor, and / or the connecting line part of one conductive ring is connected with the connecting line part of an adjacent other conductive ring.

[0012] Preferably, a connecting frame is further arranged, and the heat insulation cover and the junction box are fixedly arranged on the connecting frame in parallel.

[0013] Preferably, a temperature measuring needle for measuring the temperature of the heated gas is arranged in the air outlet, and the temperature measuring needle extends to a middle position in the air outlet.

[0014] In the technical scheme, the conductive ring is connected with the power supply to heat the heating pipe, so that the heating pipe can rapidly heat the gas in the heating pipe. In addition, the sealing connection of the plastic part not only ensures the sealing property of the gas, but also avoids the pollution of the industrial gas to be heated by metal ions, and the multi-pipeline design improves the heating efficiency and enables the air heater to process more gas at the same time, thereby accelerating the heating speed of the gas. BRIEF DESCRIPTION OF DRAWINGS

[0015] One or more embodiments are illustrated by way of example in the figures that are not intended to be limiting of the embodiments so as to illustrate exemplary principles of the embodiments. The same reference numerals in different figures represent the same element and explicit description of the same element may not be repeated for clarity. Not all elements that are useful in the embodiments are shown in the figures. The figures are not intended to be limiting of the embodiments.

[0016] Figure 1 It is a whole structure schematic view of one embodiment of the multi-pipeline hot air machine of the utility model;

[0017] Figure 2 It is an explosion structure schematic view of one embodiment of the multi-pipeline hot air machine of the utility model;

[0018] Figure 3 It is a structure schematic view of one embodiment of the multi-pipeline hot air machine of the utility model;

[0019] Figure 4 It is a structure schematic view of one embodiment of the multi-pipeline hot air machine of the utility model; Figure 3 The section schematic view of A-A direction thereof;

[0020] Figure 5 It is a structure schematic view of one embodiment of the multi-pipeline hot air machine of the utility model; Figure 3 The section schematic view of B-B direction thereof.

[0021] In the figure: 1, gas input assembly; 11, air inlet interface; 111, first sealing ring; 12, first sealing cover plate; 121, air inlet hole; 122, first slot; 123, first nut strip; 2, gas heating assembly; 21, conductive ring; 211, circular arc body; 212, connecting line part; 22, heating tube; 221, plastic part; 23, heat shield; 3, gas output assembly; 31, air outlet interface; 311, second sealing ring; 32, second sealing cover plate; 321, air outlet hole; 322, second slot; 323, second nut strip; 33, temperature measuring needle; 4, fixing column; 5, junction box; 51, AC contactor. DETAILED DESCRIPTION

[0022] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", "inner", "outer" and similar expressions used in the present specification are for the purpose of illustration only. In the description of the present application, the terms "first", "second" are used only for the purpose of description and should not be understood as indicating relative importance or implying that the indicated technical features are limited in number. Therefore, unless otherwise specified, the features with "first", "second" can explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "comprising" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof can be present or added.

[0023] In addition, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two elements. All technical and scientific terms used in the present specification have the same meaning as understood by those skilled in the art of the present application. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more related listed items.

[0024] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0025] Please refer to Figures 1 to 5The utility model provides a kind of multi-pipeline hot air machine, including gas input component 1, including the air inlet interface 11 and first sealing cover plate 12 for inputting to be heated gas, air inlet interface 11 is installed in first sealing cover plate 12 one side, first sealing cover plate 12 is equipped with several gas inlet holes 121 being communicated air inlet interface 11;Gas heating component 2, including the same number of heating tube 22 with gas inlet hole 121 and the conducting ring 21 of being set in heating tube 22, conducting ring 21 is used to communicate power heating heating tube 22 to further heat the gas to be heated in the inside of heating tube 22, and heating tube 22 both ends are equipped with plastic part 221, and plastic part 221 is sealedly connected with gas inlet hole 121;Gas output component 3, including the air outlet interface 31 and second sealing cover plate 32 of output heated gas, air outlet interface 31 is installed in second sealing cover plate 32 side away from heating tube 22, and second sealing cover plate 32 is equipped with the air outlet hole 321 being communicated with air outlet interface 31 corresponding gas inlet hole 121, and plastic part 221 away from gas inlet hole 121 is sealedly connected with air outlet hole 321.

[0026] In the technical scheme provided by the utility model, the conducting ring 21 is connected to the power supply to heat the heating tube 22, so that the heating tube 22 can rapidly heat up and heat the gas inside it. In addition, the sealed connection of the plastic part 221 not only ensures the sealing of the gas, but also avoids the pollution of the industrial gas to be heated by metal ions, and the multi-pipeline design improves the heating efficiency and enables the hot air machine to process more gas at the same time, thereby accelerating the heating speed of the gas.

[0027] Please refer to Figures 1 to 5 In the embodiment, a plurality of fixing columns 4 are also included, which are uniformly and spacedly arranged on the side of the gas heating device, and the two ends of each fixing column 4 are embedded in the first sealing cover plate 12 and the second sealing cover plate 32, respectively, and are threadedly connected with the first sealing cover plate 12 and the second sealing cover plate 32, respectively. The two ends of each fixing column 4 are in interference fit with the first sealing cover plate 12 and the second sealing cover plate 32, respectively, and the screw is screwed to the end of the fixing column 4 after passing through the first sealing cover plate 12 or the second sealing cover plate 32, thereby preventing loosening or leakage caused by changes in temperature or pressure of the gas to be heated.

[0028] Please refer to Figures 1 to 5In the embodiment, the first sealing cover plate 12 is provided with a first strip-shaped groove 122 between the two fixed columns 4, and a first nut strip 123 for balancing stress is arranged in the first strip-shaped groove 122, and the first nut strip 123 is threadedly connected with the first sealing cover plate 12; the second sealing cover plate 32 is provided with a second strip-shaped groove 322 between the two fixed columns 4, and a second nut strip 323 for balancing stress is arranged in the second strip-shaped groove 322, and the second nut strip 323 is threadedly connected with the second sealing cover plate 32. The first nut strip 123 and the second nut strip 323 effectively disperse and balance the stress generated by the fastening of the fixed columns 4, thereby avoiding the problem of structural damage or leakage caused by excessive stress on a single point.

[0029] Please refer to Figures 1 to 5 In the embodiment, the first sealing cover plate 12 is provided with a first strip-shaped groove 122 between the two fixed columns 4, and a first nut strip 123 for balancing stress is arranged in the first strip-shaped groove 122, and the first nut strip 123 is threadedly connected with the first sealing cover plate 12; the second sealing cover plate 32 is provided with a second strip-shaped groove 322 between the two fixed columns 4, and a second nut strip 323 for balancing stress is arranged in the second strip-shaped groove 322, and the second nut strip 323 is threadedly connected with the second sealing cover plate 32. The first nut strip 123 and the second nut strip 323 effectively disperse and balance the stress generated by the fastening of the fixed columns 4, thereby avoiding the problem of structural damage or leakage caused by excessive stress on a single point.

[0030] Please refer to Figures 1 to 5 In the embodiment, the first sealing cover plate 12 is provided with a first strip-shaped groove 122 between the two fixed columns 4, and a first nut strip 123 for balancing stress is arranged in the first strip-shaped groove 122, and the first nut strip 123 is threadedly connected with the first sealing cover plate 12; the second sealing cover plate 32 is provided with a second strip-shaped groove 322 between the two fixed columns 4, and a second nut strip 323 for balancing stress is arranged in the second strip-shaped groove 322, and the second nut strip 323 is threadedly connected with the second sealing cover plate 32. The first nut strip 123 and the second nut strip 323 effectively disperse and balance the stress generated by the fastening of the fixed columns 4, thereby avoiding the problem of structural damage or leakage caused by excessive stress on a single point.

[0031] Please refer to Figures 1 to 5 In the embodiment, the gas heating assembly 2 is provided with a heat shield 23 on the side, and the heat shield 23 is connected with the first sealing cover plate 12 and the second sealing cover plate 32 at both ends. The heat shield 23 can effectively block the heat generated during the heating process from spreading to the external environment, thereby improving the heating efficiency and reducing energy loss.

[0032] Please refer to Figures 1 to 5In the embodiment, the terminal box 5 is arranged on one side of the gas heating assembly 2, and the terminal box 5 is internally provided with an alternating current contactor 51 electrically connected with an external power supply, and the conductive ring 21 is electrically connected with the alternating current contactor 51. The conductive ring 21 comprises a circular arc body 211 sleeved on the surface of the heating tube 22 and a connecting line part 212 arranged at two ends of the circular arc body 211, the connecting line part 212 is electrically connected with the alternating current contactor 51, and / or the connecting line part 212 of one conductive ring 21 is connected with the connecting line part 212 of an adjacent other conductive ring 21. The circular arc body 211 is closely attached to the surface of the heating tube 22, and the connecting line part 212 is electrically connected with the alternating current contactor 51, so that the electrical path between the heating assembly and the power supply is realized. The design of the conductive ring 21 also considers the electrical connection between a plurality of heating assemblies, and the line connection of the alternating current contactor 51 is between the connecting line part 212 of one conductive ring 21 and the connecting line part 212 of an adjacent other conductive ring 21, so that the line arrangement of the internal heating tube 22 is facilitated and daily maintenance is facilitated.

[0033] Please refer to Figures 1 to 5 In the embodiment, the connecting frame is arranged side by side, and the heat shield 23 and the terminal box 5 are fixedly arranged on the connecting frame. The connecting frame provides a stable fixing platform for the heat shield 23 and the terminal box 5.

[0034] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for simplicity; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced; and the modification or replacement does not make the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-pipe air heater characterized by comprising: The utility model relates to a gas heating device, which comprises: a gas input assembly (1) comprising an air inlet (11) for inputting the gas to be heated and a first sealing cover plate (12), the air inlet (11) being mounted on one side of the first sealing cover plate (12), and the first sealing cover plate (12) being provided with a plurality of air inlet holes (121) communicating with the air inlet (11); a gas heating assembly (2) comprising a plurality of heating tubes (22) corresponding in number to the air inlet holes (121) and an electrically conductive ring (21) sleeved on the heating tubes (22), the electrically conductive ring (21) being used to connect a power source to heat the heating tubes (22) and in turn heat the gas to be heated in the heating tubes (22), and the heating tubes (22) being respectively provided at two ends with plastic parts (221) in sealing connection with the air inlet holes (121); a gas output assembly (3) comprising an air outlet (31) for outputting the heated gas and a second sealing cover plate (32), the air outlet (31) being mounted on the side of the second sealing cover plate (32) away from the heating tubes (22), and the second sealing cover plate (32) being provided with air outlet holes (321) corresponding to the air inlet holes (121) and communicating with the air outlet (31), and the plastic parts (221) away from the air inlet holes (121) being in sealing connection with the air outlet holes (321).

2. The multi-line air heater according to claim 1, wherein The utility model further comprises a plurality of fixing columns (4) uniformly and spacedly arranged on the side of the gas heating device, the fixing columns (4) being respectively embedded in the first sealing cover plate (12) and the second sealing cover plate (32) at two ends, and the fixing columns (4) being respectively screwed with the first sealing cover plate (12) and the second sealing cover plate (32) at two ends.

3. The multi-line air heater of claim 2, wherein The first sealing cover plate (12) is provided with a first slot (122) between the two fixing columns (4), and the first slot (122) is provided with a first nut strip (123) for balancing stress, and the first nut strip (123) is screwed with the first sealing cover plate (12); The second sealing cover plate (32) is provided with a second slot (322) between the two fixing columns (4), and the second slot (322) is provided with a second nut strip (323) for balancing stress, and the second nut strip (323) is screwed with the second sealing cover plate (32).

4. The multi-line air heater of claim 3, wherein A first sealing ring (111) is arranged between the air inlet (11) and the first sealing cover plate (12), and a second sealing ring (311) is arranged between the air outlet (31) and the second sealing cover plate (32).

5. The multi-line air heater of claim 4, wherein The first nut strip (123) is in threaded connection with a first sealing cover plate (12), a first sealing ring (111) and an air inlet interface (11) in sequence, the first sealing ring (111) is compressed between the first sealing cover plate (12) and the air inlet interface (11); the second nut strip (323) is in threaded connection with a second sealing cover plate (32), a second sealing ring (311) and an air outlet interface (31) in sequence, the second sealing ring (311) is compressed between the second sealing cover plate (32) and the air outlet interface (31).

6. The multi-line air heater of claim 5, wherein The gas heating assembly (2) is provided with a heat shield (23) on the peripheral side, and the heat shield (23) is connected with the first sealing cover plate (12) and the second sealing cover plate (32) at both ends respectively.

7. The multi-tube heat exchanger according to claim 6, wherein Further comprising a junction box (5) provided on one side of the gas heating assembly (2), the junction box (5) is provided with an alternating current contactor (51) electrically connected with an external power supply, and the conductive ring (21) is electrically connected with the alternating current contactor (51).

8. The multi-tube heat exchanger according to claim 7, wherein The conductive ring (21) comprises a circular arc body (211) sleeved on the surface of the heating pipe (22) and a connecting line part (212) separately arranged at both ends of the circular arc body (211), the connecting line part (212) is electrically connected with the alternating current contactor (51); and / or the connecting line part (212) of one conductive ring (21) is connected with the connecting line part (212) of the adjacent other conductive ring (21).

9. The multi-tube heat exchanger according to claim 8, wherein Further comprising a connecting frame arranged side by side, and the heat shield (23) and the junction box (5) are fixedly arranged on the connecting frame respectively.

10. The multi-tube heat exchanger according to claim 1, wherein The air outlet interface (31) is provided with a temperature measuring needle (33) for measuring the temperature of the heated gas, and the temperature measuring needle (33) extends to the middle position inside the air outlet interface (31).

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