Gas heating devices and equipment for confined spaces

Abstract

This utility model belongs to the field of fluid heating technology and discloses a gas heating device and equipment for confined spaces. The gas heating device for confined spaces includes a heating element, a heating component, and an exhaust component. The heating element has a serpentine heating channel, a first air inlet, and a first exhaust outlet communicating with the serpentine heating channel. The first air inlet is used to introduce gas, and the heating element also has a heating chamber. The serpentine heating channel surrounds the heating chamber, and the heating component is disposed within the heating chamber. The exhaust component is detachably connected to the heating element and has an exhaust channel. The exhaust component has a second air inlet communicating with the exhaust channel and multiple second exhaust outlets communicating with the exhaust channel, with the second air inlets communicating with the first exhaust outlets. This gas heating device for confined spaces reduces the temperature density of a single gas stream, improves the temperature uniformity of the space where the second exhaust outlets are located, and achieves adjustment of the gas diffusion range.

Description

Technical Field

[0001] This utility model relates to the field of fluid heating technology, and in particular to a gas heating device and heating equipment for a confined space. Background Technology

[0002] When heating a gas sufficiently in a limited space, two methods are typically used. One is to increase the number of heating elements or use heating elements with high heat transfer, which is equivalent to increasing the total heating power and providing more heat to increase the heating rate of the gas. However, this directly increases the manufacturing cost of the equipment and may occupy the limited space, causing the gas flow path to narrow, which in turn affects the heating effect. The second method is to increase the contact area between the gas and the heating element. The larger the contact area, the more significant the heat exchange effect, and the more fully the gas can absorb heat, reducing heat loss to the environment and thus improving heating efficiency. However, this increases the resistance to gas flow. If the space is limited, it may lead to a decrease in gas flow, which in turn affects the heat exchange effect.

[0003] In the related technology, the gas heating device has an S-shaped flow channel in the integrally formed heating body, and a heating rod is set between the S-shaped flow channels. Gas flows in from one end of the flow channel and flows out from the other end of the flow channel. However, when the gas flows out, it can only flow out through a single outlet. The diffusion range of the gas is uncontrollable and a high temperature zone is easily formed at the outlet. Utility Model Content

[0004] The purpose of this invention is to provide a gas heating device and equipment for confined spaces. It can reduce the temperature density of a single gas stream, improve the temperature uniformity of the space where the second exhaust port is located, and adjust the gas diffusion range.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A gas heating device for a confined space, comprising:

[0007] A heating element, wherein a serpentine heating channel is provided inside the heating element, and the heating element also has a first air inlet and a first exhaust port communicating with the serpentine heating channel. The first air inlet is used to introduce gas, and the heating element also has a heating cavity, with the serpentine heating channel surrounding the heating cavity.

[0008] A heating element, wherein the heating element is disposed within the heating cavity;

[0009] An exhaust component is detachably connected to the heating element. The exhaust component has an exhaust channel, a second air inlet communicating with the exhaust channel, and multiple second exhaust ports communicating with the exhaust channel. The second air inlet can communicate with the first exhaust port.

[0010] Preferably, the heating component includes:

[0011] The heating body has multiple heating channels arranged at intervals and connected in sequence.

[0012] Two sealing elements are located on both sides of the heating body along the length of the heating body, and the two sealing elements can be fixedly connected to both sides of the heating body so that multiple spaced and sequentially connected heating channels form the serpentine heating channel.

[0013] Preferably, each of the heating channels includes:

[0014] A direct current channel, which extends through the heating body along the width direction of the heating body;

[0015] An arc-shaped flow channel is formed on the side opposite to the heating body and the sealing element, and along the arc direction of the arc-shaped flow channel, the first end of the arc-shaped flow channel is connected to the direct flow channel, and the second end of the arc-shaped flow channel is connected to the direct flow channel of the adjacent heating flow channel.

[0016] Preferably, the heating element also includes a temperature measuring cavity, and the gas heating device in the confined space further includes:

[0017] A temperature measuring element, wherein the temperature measuring element is housed within the temperature measuring cavity.

[0018] Preferably, the temperature measuring element is a thermocouple.

[0019] Preferably, the first exhaust port has multiple openings, the second air inlet has multiple openings, and the exhaust channel has multiple openings, with the multiple second air inlets, the multiple first exhaust ports, and the multiple exhaust channels corresponding one-to-one.

[0020] Preferably, there are two heating chambers arranged at intervals, and two heating elements are provided, each housed in one of the two heating chambers.

[0021] Preferably, the heating element also has a temperature measuring cavity, which contains a temperature measuring element. The distance from the center of the temperature measuring cavity to the center of the two heating cavities is the same along the width direction of the heating element.

[0022] Preferably, the exhaust component is threadedly connected to the heating element.

[0023] The heating device includes a device body, a positioning pin, and a gas heating device for confined spaces as described above. The positioning pin is fixedly connected to the device body, and the gas heating device has a positioning hole into which the positioning pin can be inserted.

[0024] The beneficial effects of this utility model are:

[0025] This utility model provides a gas heating device and heating equipment for confined spaces. The gas heating device for confined spaces includes a heating element, a heating component, and an exhaust component. The heating element has a serpentine heating channel, a first air inlet and a first exhaust port communicating with the serpentine heating channel. The first air inlet is used to introduce gas, and the heating element also has a heating cavity. The serpentine heating channel surrounds the heating cavity, and the heating component is disposed in the heating cavity. The exhaust component is detachably connected to the heating element, has an exhaust channel, a second air inlet communicating with the exhaust channel and multiple second exhaust ports communicating with the exhaust channel, and the second air inlet can communicate with the first exhaust port.

[0026] Gas enters the serpentine heating channel inside the heating element through the first air inlet. The serpentine structure forces the gas to flow along a fixed path, preventing direct short-circuiting and exhaust. During this process, the heating element installed in the heating chamber generates heat. Because the serpentine heating channel surrounds the heating chamber, heat is transferred to the gas within the serpentine heating channel through the cavity wall of the heating element, raising the gas temperature. The heated gas then flows out from the first exhaust port, enters the exhaust channel through the second air inlet, and is finally dispersed and discharged through multiple second exhaust ports, completing the process of discharging heated gas from multiple outlets within a confined space. The multiple second exhaust ports can split the concentrated airflow into multiple dispersed airflows, reducing the temperature density of a single airflow, improving the temperature uniformity of the space where the second exhaust ports are located, and allowing for adjustment of the gas diffusion range. Attached Figure Description

[0027] Figure 1 This is an isometric view of the gas heating device for a confined space provided in an embodiment of this utility model;

[0028] Figure 2 This is an exploded view of the gas heating device for a confined space provided in this embodiment of the utility model;

[0029] Figure 3 This is a bottom view of the gas heating device for a confined space provided in this embodiment of the utility model;

[0030] Figure 4 This is a first cross-sectional view of the gas heating device for a confined space provided in this embodiment of the utility model;

[0031] Figure 5This is a second cross-sectional view of the gas heating device for a confined space provided in this embodiment of the present invention;

[0032] Figure 6 This is a third cross-sectional view of the gas heating device for a confined space provided in this embodiment of the utility model.

[0033] In the picture:

[0034] 1. Heating element; 11. Serpentine heating channel; 111. Direct current channel; 112. Arc-shaped flow channel; 12. Heating body; 121. First air inlet; 122. First exhaust port; 123. Heating chamber; 124. Temperature measuring chamber; 125. Positioning hole; 13. Sealing element;

[0035] 2. Heating element;

[0036] 3. Exhaust components; 31. Exhaust passage; 32. Second air intake; 33. Second exhaust port;

[0037] 4. Temperature measuring element. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] This embodiment provides a gas heating device for a confined space, such as... Figures 1-5 As shown, the device includes a heating element 1, a heating component 2, and an exhaust component 3. The heating element 1 has a serpentine heating channel 11, a first air inlet 121 and a first exhaust outlet 122 communicating with the serpentine heating channel 11. The first air inlet 121 is used to introduce gas, and the heating element 1 also has a heating chamber 123. The serpentine heating channel 11 surrounds the heating chamber 123. The heating component 2 is disposed in the heating chamber 123. The exhaust component 3 is detachably connected to the heating element 1. The exhaust component 3 has an exhaust channel 31, a second air inlet 32 ​​communicating with the exhaust channel 31 and multiple second exhaust outlets 33 communicating with the exhaust channel 31, and the second air inlet 32 ​​can communicate with the first exhaust outlet 122.

[0043] Gas enters the serpentine heating channel 11 inside the heating element 1 through the first air inlet 121. The serpentine structure forces the gas to flow along a fixed path, preventing direct short-circuiting and exhaust. During this process, the heating element 2 installed in the heating cavity 123 generates heat. Since the serpentine heating channel 11 surrounds the heating cavity 123, heat is transferred through the cavity wall of the heating element 1 to the gas inside the serpentine heating channel 11, raising the gas temperature. Subsequently, the heated gas flows out from the first exhaust port 122, enters the exhaust channel 31 through the second air inlet 32, and is finally dispersed and discharged through multiple second exhaust ports 33, completing the discharge of heated gas from multiple outlets within a confined space. The arrangement of multiple second exhaust ports 33 can split the concentrated airflow into multiple dispersed airflows, reduce the temperature density of a single airflow, improve the temperature uniformity of the space where the second exhaust port 33 is located, and the multiple second exhaust ports 33 also allow for adjustment of the gas diffusion range.

[0044] Specifically, such as Figure 1 As shown, in this embodiment, both the heating element 1 and the exhaust element 3 are made of copper. In other embodiments, both the heating element 1 and the exhaust element 3 are made of aluminum alloy, or the heating element 1 is made of copper and the exhaust element 3 is made of aluminum alloy, etc.

[0045] It should be noted that in this embodiment, the gas introduced through the first air inlet 121 is compressed air. In other embodiments, the gas introduced through the first air inlet 121 is compressed nitrogen or the like. No limitation is made here.

[0046] Optionally, such as Figure 1 and Figure 2 As shown, the heating assembly 1 includes a heating body 12 and two sealing members 13. The heating body 12 has multiple heating channels arranged at intervals and connected in sequence. The two sealing members 13 are located on both sides of the heating body 12 along the length direction of the heating body 12, and the two sealing members 13 can be fixedly connected to both sides of the heating body 12 so that the multiple heating channels arranged at intervals and connected in sequence form a serpentine heating channel 11. When the two seals 13 are fixedly connected to both ends of the heating body 12 along its length, they will seal the heating channels, leaving only the inlet and outlet ends of the heating channels open, while sealing off unnecessary connecting gaps between the channels. Finally, the multiple heating channels that were originally spaced apart and connected sequentially in the heating body 12 will form a continuous, meandering serpentine heating channel 11 under the constraint of the two seals 13. The serpentine structure can maximize the flow path of gas in the heating body 12, and due to the sealing of the seals 13, the spaced apart and connected heating channels form a serpentine heating channel 11, which is convenient for cleaning the impurities deposited in each heating channel due to the long-term flow of gas.

[0047] Specifically, such as Figure 2 As shown, in this embodiment, the heating body 12 is a block structure, and the sealing element 13 is a sealing plate. In other embodiments, the heating body 12 is a plate structure, and the sealing element 13 is a sealing sheet, etc. No limitation is made here.

[0048] Optionally, such as Figure 2 and Figures 4-6As shown, the heating channel includes a direct current channel 111 and an arc-shaped channel 112. The direct current channel 111 extends through the heating body 12 along the width direction of the heating body 12. The arc-shaped channel 112 is opened on the side of the heating body 12 opposite to the sealing member 13 and is along the arc direction of the arc-shaped channel 112. The first end of the arc-shaped channel 112 is connected to the direct current channel 111, and the second end of the arc-shaped channel 112 is connected to the direct current channel 111 of the adjacent heating channel. Gas enters the first direct current channel 111 through the first inlet 121, and then flows along the width of the heating body 12 within the direct current channel 111. It then enters the arc-shaped channel 112 through its first end, flows along the arc-shaped path to its second end, and enters the direct current channel 111 of an adjacent heating channel connected to the second end of the arc-shaped channel 112. Finally, it exits from the direct current channel 111 and enters the first end of the arc-shaped channel 112 connected to the direct current channel 111. This flow process is repeated, forming a continuous channel network of direct current channel 111, arc-shaped channel 112, and adjacent heating channel direct current channels 111. The through-type design of the direct current channel 111 allows the medium to quickly pass through the width of the heating body 12, initially achieving uniform heating. The arc-shaped channel 112 is located on the side of the heating body 12. Compared to the direct current channel 111, the arc-shaped channel 112 has a longer path, extending the residence path of the gas on the heating body 12 and increasing the heating time.

[0049] More specifically, such as Figure 2 and Figures 4-6 As shown, since the direct flow channel 111 and the arc flow channel 112 are located on two mutually perpendicular planes, the gas will experience airflow turbulence at the connection between the direct flow channel 111 and the arc flow channel 112, which will increase the gas flow turbulence and cause gas molecules to come into contact with each other at the connection, accelerating the transfer of heat in the gas and increasing the gas heating rate.

[0050] Specifically, such as Figure 1 As shown, in this embodiment, the arc-shaped flow channel 112 is a semi-circular flow channel. In other embodiments, the arc-shaped flow channel 112 is a quarter-circular flow channel or a third-circular flow channel, etc. No limitation is made here. More specifically, as... Figure 1 As shown, in this embodiment, the line connecting the two ends of the semi-circular flow channel is in the same direction as the length of the heating body 12. In other embodiments, the line connecting the two ends of the semi-circular flow channel forms a certain angle with the length of the heating body 12. No limitation is imposed here.

[0051] Specifically, such as Figure 2 and Figures 4-6As shown, on the side of the heating body 12 opposite to the sealing member 13, the heating flow channel has two layers, which are sequentially connected and interconnected to form a serpentine heating channel 11. In other embodiments, the side of the heating body 12 opposite to the sealing member 13 has one layer of heating flow channel, or the side of the heating body 12 opposite to the sealing member 13 has three layers of heating flow channel, etc. No limitation is made here.

[0052] Specifically, such as Figure 2 As shown, in this embodiment, the exhaust component 3 is threadedly connected to the heating element 1. The threaded connection offers strong detachability, facilitating maintenance and assembly. In other embodiments, the exhaust component 3 is snap-fitted to the heating element 1, plugged into the heating element 1, or magnetically connected to the heating element 1, etc. No limitation is made here. It should be noted that in this embodiment, the exhaust component 3 is threadedly connected to the heating body 12. In other embodiments, the exhaust component 3 is threadedly connected to the sealing element 13, etc. No limitation is made here.

[0053] Optionally, such as Figure 2 and Figure 5 As shown, the heating element 1 also has a temperature measuring cavity 124. The gas heating device in the confined space also includes a temperature measuring element 4, which is housed within the temperature measuring cavity 124. By housing the temperature measuring element 4 within the temperature measuring cavity 124, interference from the external environment on temperature measurement can be reduced, thereby improving the accuracy of the temperature measuring element 4 in detecting the temperature of the heating body 12.

[0054] Specifically, the temperature sensing element 4 is a thermocouple. In other embodiments, the temperature sensing element 4 is a gas thermometer, an infrared thermometer, or a bimetallic thermometer, etc. No limitation is made here.

[0055] Specifically, such as Figure 2 and Figure 6 As shown, two heating chambers 123 are provided, arranged alternately. Two heating elements 2 are provided, each housed within one of the two heating chambers 123. Within the same space, the two heating elements 2 can expand the effective heating area. Their alternate arrangement also reduces localized heat loss caused by heat concentration, resulting in a more uniform temperature distribution. Furthermore, if one heating element 2 fails, the other can temporarily maintain basic heating function, preventing failure in heating the gas. It should be noted that, as... Figure 2 and Figure 6 As shown, in this embodiment, the two heating chambers 123 are arranged at intervals along the width direction of the heating body 12. In other embodiments, the two heating chambers 123 are arranged at intervals along the height direction of the heating body 12, etc. No limitation is made here.

[0056] Specifically, in this embodiment, the heating element 2 is an electric heating rod. The electric heating rod has a robust structure, high bending strength, explosion-proof and sealing properties, uniform heating, low surface heat load, reliable operation, long service life, high thermal efficiency, and requires no routine maintenance. In other embodiments, the heating element 2 may be a resistance wire, a cylindrical heater, or a halogen infrared heater, etc. No limitations are imposed here.

[0057] Optionally, such as Figure 6 As shown, along the width direction of the heating element 1, the distance from the center of the temperature measuring cavity 124 to the center of the two heating cavities 123 is the same. This arrangement allows the temperature measuring cavity 124 to uniformly sense the heat from the heating cavities 123 on both sides, which is beneficial for more accurate detection of the temperature inside the heating cavity 123, thereby providing more stable and reliable temperature feedback.

[0058] Specifically, such as Figure 6 As shown, in this embodiment, the cross-sections of the temperature measuring cavity 124 and the two heating cavities 123 are circular, and the line connecting the center of the temperature measuring cavity 124 and the center of the two heating cavities 123 forms an isosceles triangle. In other embodiments, the center of the temperature measuring cavity 124 and the center of the two heating cavities 123 are on the same straight line, etc. No limitations are imposed here.

[0059] Specifically, such as Figure 2 and Figure 6 As shown, multiple first exhaust ports 122, multiple second air inlets 32, and multiple exhaust channels 31 are provided. Each of the multiple second air inlets 32, multiple first exhaust ports 122, and multiple exhaust channels 31 corresponds to a single exhaust port. The arrangement of these multiple first exhaust ports 122, multiple second air inlets 32, and multiple exhaust channels 31 ensures that each first exhaust port 122, second air inlet 32, and exhaust channel 31 forms an independent, non-interfering gas discharge and transmission unit. Simultaneously, each exhaust channel 31 is connected to multiple second exhaust ports 33, dispersing the gas within the exhaust channel 31 to multiple discharge points. This avoids exhaust delays caused by "local airflow congestion" at a single exhaust port. Furthermore, if the device needs to process gas from the same source but requiring discharge to multiple areas, the multiple gas discharge units ensure independent gas transmission for each unit while simultaneously covering multiple areas of the device through the layout of multiple second exhaust ports 33.

[0060] Specifically, such as Figure 2 , Figure 5 and Figure 6 As shown, nine first exhaust ports 122 are spaced apart along the length of the heating body 12, and correspondingly, nine second air inlets 32 are spaced apart along the length of the heating body 12, and nine exhaust channels 31 are spaced apart along the length of the heating body 12.

[0061] Specifically, such as Figure 2 and Figure 6 As shown, in this embodiment, the second exhaust ports 33 are spaced apart along the width direction of the heating body 12. In other embodiments, the second exhaust ports 33 are spaced apart along the length direction of the heating body 12, etc. No limitation is made here.

[0062] This embodiment also provides a heating device, which includes a device body, a positioning pin, and a gas heating device for confined spaces. The positioning pin is fixedly connected to the device body, and the gas heating device has a positioning hole 125 into which the positioning pin can be inserted. The cooperative arrangement of the positioning pin and the positioning hole 125 provides a precise positioning reference, ensuring that the relative position of the gas heating device in the confined space and the device body is fixed. This also facilitates the assembly of the gas heating device in the confined space with the device body, reduces the difficulty of installation alignment, and prevents the gas heating device in the confined space from shifting during operation.

[0063] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gas heating device for a confined space, characterized in that, include: A heating element (1) is provided with a serpentine heating channel (11) and a first air inlet (121) and a first exhaust outlet (122) communicating with the serpentine heating channel (11). The first air inlet (121) is used to introduce gas, and the heating element (1) is also provided with a heating cavity (123). The serpentine heating channel (11) surrounds the heating cavity (123). A heating element (2) is disposed within the heating chamber (123); An exhaust component (3) is detachably connected to the heating component (1). An exhaust channel (31) is provided in the exhaust component (3). The exhaust component (3) has a second air inlet (32) communicating with the exhaust channel (31) and a plurality of second exhaust ports (33) communicating with the exhaust channel (31). The second air inlet (32) can communicate with the first exhaust port (122).

2. The gas heating device for a confined space according to claim 1, characterized in that, The heating component (1) includes: The heating body (12) has multiple heating channels arranged at intervals and connected in sequence inside the heating body (12); Two sealing elements (13) are located on both sides of the heating body (12) along the length direction of the heating body (12), and the two sealing elements (13) can be fixedly connected to both sides of the heating body (12) so that multiple spaced and sequentially connected heating channels form the serpentine heating channel (11).

3. The gas heating device for a confined space according to claim 2, characterized in that, Each of the heating channels includes: A direct current channel (111) extends through the heating body (12) along the width direction of the heating body (12); An arc-shaped flow channel (112) is formed on the side opposite to the heating body (12) and the sealing member (13), and along the arc direction of the arc-shaped flow channel (112), the first end of the arc-shaped flow channel (112) is connected to the direct flow channel (111), and the second end of the arc-shaped flow channel (112) is connected to the direct flow channel (111) of the adjacent heating flow channel.

4. The gas heating device for a confined space according to any one of claims 1-3, characterized in that, The heating element (1) also has a temperature measuring cavity (124), and the gas heating device in the confined space further includes: Temperature measuring element (4), which is housed in the temperature measuring cavity (124).

5. The gas heating device for a confined space according to claim 4, characterized in that, The temperature measuring element (4) is a thermocouple.

6. The gas heating device for a confined space according to any one of claims 1-3, characterized in that, The first exhaust port (122) has multiple openings, the second air inlet (32) has multiple openings, and the exhaust channel (31) has multiple openings. The multiple second air inlets (32), the multiple first exhaust ports (122) and the multiple exhaust channels (31) correspond one-to-one.

7. The gas heating device for a confined space according to any one of claims 1-3, characterized in that, Two heating chambers (123) are provided, and the two heating chambers (123) are arranged at intervals. Two heating elements (2) are provided, and the two heating elements (2) are respectively housed in the two heating chambers (123).

8. The gas heating device for a confined space according to claim 7, characterized in that, The heating component (1) also has a temperature measuring cavity (124), and a temperature measuring element (4) is placed inside the temperature measuring cavity (124). Along the width direction of the heating component (1), the center of the temperature measuring cavity (124) is the same distance from the center of the two heating cavities (123).

9. The gas heating device for a confined space according to any one of claims 1-3, characterized in that, The exhaust component (3) is threadedly connected to the heating component (1).

10. A heating device, characterized in that, The heating device includes a device body, a positioning pin, and a gas heating device for a confined space as described in any one of claims 1-9. The positioning pin is fixedly connected to the device body, and the gas heating device has a positioning hole (125). The positioning pin can be inserted into the positioning hole (125).

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