Anti-condensation spiral coil electric heater for cryogenic dust collector

Abstract

The utility model provides a kind of anti-condensation spiral coil electric heater for low temperature dust collector, it relates to electric dust collector equipment heating technical field, including: cabinet, its inside is provided with containing bin, the cabinet same side is provided with air inlet pipeline and exhaust pipeline, the air inlet pipeline and exhaust pipeline are all with the containing bin intercommunication;Heat exchange plate, it is arranged in the containing bin interior;Heater, it is arranged below heat exchange plate, the heater both ends are respectively connected with connecting wire, the connecting wire is through heat exchange plate and cabinet inner wall to the upper surface of cabinet;Junction box, it is arranged in the upper surface of cabinet, the bottom of junction box is connected with connecting wire.The utility model has realized air intake, exhaust and heat exchange function, while the wiring of heater is facilitated, structure design is reasonable, both ensure the effective progress of heat exchange, and facilitate electrical connection and equipment maintenance.

Description

Technical Field

[0001] This utility model relates to the field of heating technology for electrostatic precipitator equipment, and more specifically, to an anti-condensation spiral coil electric heater for low-temperature dust collectors. Background Technology

[0002] In industrial production processes, cryogenic dust collectors are widely used as important environmental protection equipment in various applications requiring the treatment of cryogenic dust-laden gases. With increasingly stringent environmental standards and rising industrial demands for energy conservation and emission reduction, the efficient and stable operation of cryogenic dust collectors is becoming increasingly crucial.

[0003] Traditional electrostatic precipitator insulators are typically cleaned with hot air to prevent condensation. However, in low-temperature dust collectors, this method is ineffective due to the extremely low flue gas temperature. If condensation forms on the insulators, their surface insulation performance will significantly decrease, easily leading to surface creepage. In severe cases, this can even damage the insulators and affect the normal operation of the dust collector.

[0004] Therefore, there is an urgent need for an anti-condensation spiral coil electric heater for cryogenic dust collectors to replace the existing heaters in order to solve the problem of how cryogenic dust collectors can efficiently, reliably and safely prevent condensation. Utility Model Content

[0005] In view of this, this utility model proposes an anti-condensation spiral coil electric heater for low-temperature dust collectors, aiming to solve the problem of how to efficiently, reliably and safely prevent condensation in low-temperature dust collectors.

[0006] This utility model provides an anti-condensation spiral coil electric heater for a low-temperature dust collector, comprising:

[0007] The box has an internal compartment, and an air inlet pipe and an exhaust pipe are provided on the same side of the box. Both the air inlet pipe and the exhaust pipe are connected to the compartment. A heat exchange plate is disposed inside the compartment, and a heating component is disposed below the heat exchange plate.

[0008] The heat exchange plate divides the accommodating chamber into a heating chamber and a gas management chamber. The heating chamber is connected to the air inlet pipe, and the gas management chamber is connected to the exhaust pipe.

[0009] Furthermore, the heat exchange plate includes, from top to bottom, an upper clamping plate, a heat exchange layer, and a lower clamping plate. The upper and lower clamping plates are fixedly connected to the inner side of the receiving chamber, and the heat exchange layer is slidably connected to the upper and lower clamping plates. An exhaust vent is provided on the upper surface of the upper clamping plate, and an air inlet vent is provided on the lower surface of the lower clamping plate. The heat exchange layer is composed of several sets of corrugated plates stacked together, and the length of both sides of the heat exchange layer is longer than that of the upper and lower clamping plates.

[0010] Furthermore, a slide is provided on the inner side of the receiving chamber, the shape of which corresponds to the two sides of the heat exchange layer, and the slide is connected to the two sides of the heat exchange layer.

[0011] Furthermore, the heating assembly includes two heaters, which are spiral in shape, and each of the two heaters is connected to a connecting wire at both ends. The connecting wire passes through the heat exchange plate and the inner wall of the box to the upper surface of the box.

[0012] Furthermore, a junction box is provided on the upper surface of the enclosure, and an installation sleeve is connected inside the junction box. A baffle is provided at the end of the installation sleeve, and a first sealing gasket is fitted between the baffle and the installation sleeve. A first annular block is fitted at the end of the installation sleeve away from the baffle, and a second sealing gasket is fitted between the first annular block and the installation sleeve. The side of the first annular block away from the second sealing gasket is in contact with the outer surface of the enclosure. The installation sleeve inside the junction box is fitted with a second annular block, and the side of the second annular block close to the first annular block is in contact with the inner surface of the junction box.

[0013] Furthermore, the junction box includes an upper box body and a lower box body, which are connected by bolts.

[0014] Furthermore, a shock-absorbing component is provided on the upper surface of the housing. The shock-absorbing component includes a fixing ring, which is sleeved on the outer side of the mounting sleeve and positioned between the first sealing gasket and the second sealing gasket. A support plate is provided on the side of the fixing ring near the housing. A support column is provided on the upper surface of the housing, penetrating the support plate and slidably connected to it. A return spring is provided between the lower side of the support plate and the upper surface of the housing, and the return spring is sleeved on the outer side of the support column.

[0015] Furthermore, a maintenance door is provided on the outer side of the enclosure, the position of which corresponds to the position of the heat exchange plate, and a handle is provided on the side of the maintenance door away from the enclosure.

[0016] Furthermore, a display screen and control buttons are provided below the maintenance door, and the control buttons are used to adjust parameters.

[0017] Furthermore, the bottom of the box is equipped with casters.

[0018] Furthermore, a gas drying layer is provided inside the air intake pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The heat exchange plate divides the containment chamber into a heating chamber and a gas management chamber. This allows the gas entering through the intake pipe to be heated by the heating components in the heating chamber, then fully contact the heat exchange plate for heat exchange, before being discharged from the gas management chamber through the exhaust pipe. This design increases the contact area and time between the gas and the heat exchange plate, improving the efficiency of heat exchange and thus enabling more effective heating of the gas.

[0021] 2. The containment chamber is divided into two functionally distinct chambers by a heat exchange plate: a heating chamber for heating the gas and a gas management chamber for gas discharge and management. This partitioning makes the device structure more rational, with clearly defined functions for each part, facilitating operation and maintenance, and also improving the overall performance and stability of the device.

[0022] 3. Since the heating component is located below the heat exchange plate, the temperature inside the heating chamber can be flexibly adjusted by controlling the power or working time of the heating component, thereby precisely controlling the temperature of the heat exchange plate and achieving precise control of the temperature of the incoming gas to meet different usage requirements. Attached Figure Description

[0023] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0024] Figure 1 A schematic diagram of the structure of the anti-condensation spiral coil electric heater for a low-temperature dust collector provided in this embodiment of the utility model;

[0025] Figure 2 A cross-sectional view of an anti-condensation spiral coil electric heater for a low-temperature dust collector provided in an embodiment of this utility model;

[0026] Figure 3 A cross-sectional view of the junction box provided in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the shock-absorbing component provided in an embodiment of the present invention.

[0028] In the diagram: 100 - Housing; 110 - Exhaust pipe; 111 - Intake pipe; 120 - Connecting wire; 130 - Moving pulley; 140 - Display screen; 150 - Control button; 160 - Maintenance door; 161 - Handle; 170 - Junction box; 180 - Wiring assembly; 190 - Shock absorption assembly; 191 - Fixing ring; 192 - Support plate; 193 - Support column; 194 - Return spring; 200 - Receiving compartment; 210 - Upper clamping plate; 211 - Exhaust vent; 220 - Heat exchange layer; 230 - Lower clamping plate; 231 - Intake vent; 240 - Heater; 250 - Heat exchange plate; 300 - Baffle; 310 - First sealing gasket; 320 - Mounting sleeve; 330 - Second sealing gasket; 340 - First annular stop; 350 - Second annular stop; 360 - Upper housing; 370 - Lower housing. Detailed Implementation

[0029] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, 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 application.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] See Figure 1 and Figure 2As shown, this embodiment provides an anti-condensation spiral coil electric heater for a low-temperature dust collector, comprising:

[0034] The housing 100 has an internal compartment 200. An air inlet pipe 111 and an exhaust pipe 110 are provided on the same side of the housing 100. Both the air inlet pipe 111 and the exhaust pipe 110 are connected to the compartment 200. A heat exchange plate 250 is provided inside the compartment 200. A heating component is provided below the heat exchange plate 250.

[0035] The heat exchange plate 250 divides the housing 200 into a heating chamber and a gas management chamber. The heating chamber is connected to the air inlet pipe 111, and the gas management chamber is connected to the exhaust pipe 110.

[0036] As described above, external gas enters the heating chamber within the receiving chamber 200 through the intake pipe 111. Since the heat exchange plate 250 divides the receiving chamber 200 into a heating chamber and a gas management chamber, and the heating chamber is connected to the intake pipe 111, gas can smoothly enter the heating chamber. The gas entering the heating chamber is heated by the heating component. The heating component is located below the heat exchange plate 250, and the heat it generates is transferred to the gas in the heating chamber, raising its temperature. The presence of the heat exchange plate 250 allows heat to be transferred to the gas management chamber on the other side, thus not only heating the gas in the heating chamber but also influencing the conditions within the gas management chamber. After heating and heat exchange, the gas enters the gas management chamber from the heating chamber through a specific channel on the heat exchange plate 250, and then exits the housing 100 through the exhaust pipe 110 connected to the gas management chamber. During this process, the heat exchange plate 250 may continue to perform temperature regulation and other management functions to ensure that the temperature and other parameters of the discharged gas meet the usage requirements.

[0037] Specifically, the heat exchange plate 250 includes, from top to bottom, an upper clamping plate 210, a heat exchange layer 220, and a lower clamping plate 230. The upper clamping plate 210 and the lower clamping plate 230 are fixedly connected to the inner side of the receiving chamber 200. The heat exchange layer 220 is slidably connected to the upper clamping plate 210 and the lower clamping plate 230. An exhaust vent 211 is provided on the upper surface of the upper clamping plate 210, and an air inlet vent 231 is provided on the lower surface of the lower clamping plate 230. The heat exchange layer 220 is composed of several sets of corrugated plates stacked together. The length of the two sides of the heat exchange layer 220 is longer than that of the upper clamping plate 210 and the lower clamping plate 230.

[0038] As shown above, the heat exchange layer 220 is composed of several sets of corrugated plates stacked together. The corrugated plate structure increases the surface area of ​​the heat exchange layer 220. A larger surface area means a larger contact area between the gas and the heat exchange layer 220, thereby improving the efficiency of heat exchange and allowing the gas to transfer heat more fully with the heat exchange layer 220, achieving better heating or cooling effects. The upper clamping plate 210 has an exhaust port 211 on its upper surface, and the lower clamping plate 230 has an intake port 231 on its lower surface. This design clearly defines the gas's entry and exit paths, allowing the gas to pass through the heat exchange layer 220 in an orderly manner. Simultaneously, the lengths of the two sides of the heat exchange layer 220 are longer than those of the upper clamping plate 210 and the lower clamping plate 230. This structure guides the gas to be more evenly distributed on the surface of the heat exchange layer 220, avoiding gas concentration in certain areas and preventing uneven heat exchange, further improving the efficiency and effect of heat exchange.

[0039] Understandably, the upper clamping plate 210 and lower clamping plate 230 are fixedly connected to the inner side of the receiving chamber 200. This design allows the heat exchange plate 250 to be stably installed inside the receiving chamber 200, ensuring the stability of the entire heat exchange structure during equipment operation and preventing the heat exchange effect and normal operation of the equipment from being affected by shaking or loosening. The heat exchange layer 220 is slidably connected to the upper clamping plate 210 and lower clamping plate 230, which provides a certain degree of flexibility. For example, when it is necessary to maintain, clean, or replace the heat exchange layer 220, it can be easily pulled out from between the upper and lower clamping plates 230 or reinstalled, reducing the difficulty and cost of equipment maintenance. At the same time, during equipment operation, if the heat exchange layer 220 undergoes some expansion and contraction deformation due to factors such as temperature changes, the sliding connection allows it to expand and contract freely, reducing the stress caused by deformation that could damage the overall structure of the heat exchange plate 250.

[0040] Specifically, the inner side of the receiving chamber 200 is provided with a slide, the shape of which corresponds to the two sides of the heat exchange layer 220, and the slide is connected to the two sides of the heat exchange layer 220.

[0041] Understandably, the presence of the slide rails allows for precise positioning of the heat exchange layer 220, ensuring its accurate installation within the housing 200. During installation, workers can easily and accurately place the heat exchange layer 220 into its designated position along the slide rails, preventing installation deviations that could affect the heat exchange effect.

[0042] Specifically, the heating assembly includes two heaters 240, which are spiral in shape. Each end of the two heaters 240 is connected to a connecting wire 120, which passes through the heat exchange plate and the inner wall of the housing 100 to the upper surface of the housing 100.

[0043] Understandably, the spiral arrangement of the heater 240 allows heat to be distributed more evenly within the heating chamber. As the gas flows within the heating chamber, it can more fully contact different parts of the heater 240, avoiding localized overheating or uneven heating, thus ensuring the uniformity of the gas temperature within the heating chamber.

[0044] See Figure 3 As shown, a junction box 170 is provided on the upper surface of the enclosure 100. An installation sleeve 320 is connected inside the junction box 170. A baffle 300 is provided at the end of the installation sleeve 320. A first sealing gasket 310 is fitted between the baffle 300 and the installation sleeve 320. A first annular block 340 is fitted at the end of the installation sleeve 320 away from the baffle 300. A second sealing gasket 330 is fitted between the first annular block 340 and the installation sleeve 320. The side of the first annular block 340 away from the second sealing gasket 330 is in contact with the outer side of the enclosure 100. A second annular block 350 is fitted inside the installation sleeve 320 in the junction box 170. The side of the second annular block 350 near the first annular block 340 is in contact with the inner side of the junction box 170.

[0045] As can be seen from the above, the heater 240 connecting wire 120 is led out from inside the housing 100 to the upper surface of the housing 100, and is introduced and installed by passing through the mounting sleeve 320. The baffle 300 and the first sealing gasket 310 at the end of the mounting sleeve 320 initially prevent external impurities from entering. Where the mounting sleeve 320 passes through the housing 100, the first annular block 340 and the second sealing gasket 330 fit tightly together to enhance the sealing between the mounting sleeve 320 and the housing 100 and prevent mutual interference between the internal and external environments. Inside the junction box 170, the second annular block 350 firmly fixes the mounting sleeve 320 to ensure the stability of the connecting wire 120 and facilitate the cleanliness and maintenance inside the junction box 170. Finally, the electrical connection between the connecting wire 120 and the power supply or control equipment is completed inside the junction box 170. The junction box 170 provides a closed space to protect the connection points and reduce the risk of faults such as short circuits.

[0046] Specifically, the junction box 170 includes an upper box body 360 and a lower box body 370, which are connected by bolts.

[0047] Understandably, using bolts to connect the upper box 360 and the lower box 370 allows for simple assembly during installation. Just align the two and tighten the bolts to complete the assembly. The operation is simple and convenient, requiring no complicated tools or professional skills, thus reducing the difficulty of installation.

[0048] See Figure 4As shown, a shock-absorbing assembly 190 is provided on the upper surface of the housing 100. The shock-absorbing assembly 190 includes a fixing ring 191, which is sleeved on the outer side of the mounting sleeve 320 and positioned between the first sealing gasket 310 and the second sealing gasket 330. A support plate 192 is provided on the side of the fixing ring 191 near the housing 100. A support column 193 is provided on the upper surface of the housing 100, which penetrates the support plate 192 and is slidably connected to the support plate 192. A return spring 194 is provided between the lower side of the support plate 192 and the upper surface of the housing 100, and the return spring 194 is sleeved on the outer side of the support column 193.

[0049] As can be seen from the above, when the enclosure 100 vibrates due to equipment operation, the vibration is transmitted to the mounting sleeve 320. The fixing ring 191, which is fitted on the outer side of the mounting sleeve 320 and located between the first and second sealing gaskets 330, vibrates accordingly, causing the support plate 192 connected to it to slide on the support column 193. This compresses the return spring 194, which is fitted on the outer side of the support column 193 between the lower side of the support plate 192 and the upper surface of the enclosure 100. The return spring 194 absorbs the vibration energy by deforming under force, and then returns to its original position under its own elastic force. This pushes the support plate 192 to drive the fixing ring 191 and the mounting sleeve 320 back to their original positions, thereby cyclically buffering the vibration and protecting the junction box 170 and its internal electrical connection structure from vibration damage.

[0050] Understandably, vibration may loosen the connection points between the heater 240 connecting wire 120 and the electrical components inside the junction box 170, leading to poor contact, increased resistance, affecting the normal heating of the heater 240, or even causing a malfunction. The vibration damping component 190 buffers vibration, prevents the mounting sleeve 320 from shaking, thereby stabilizing the connecting wire 120, maintaining a stable electrical connection of the heater 240, and ensuring continuous and stable heating operation.

[0051] Specifically, a maintenance door 160 is provided on the outer side of the enclosure 100, the position of the maintenance door 160 corresponds to the position of the heat exchange plate 250, and a handle 161 is provided on the side of the maintenance door 160 away from the enclosure 100.

[0052] Specifically, a display screen 140 and control buttons 150 are provided below the maintenance door 160. The control buttons 150 are used to adjust parameters.

[0053] Specifically, the bottom of the housing 100 is provided with movable casters 130.

[0054] Understandably, the maintenance door 160 of the enclosure 100 corresponds to the heat exchange plate 250 and is equipped with an ergonomically designed handle 161, which facilitates quick maintenance of the heat exchange plate 250, improves maintenance efficiency, ensures equipment operation, and enhances equipment operability. The display screen 140 and control buttons 150 below the maintenance door 160 can monitor equipment parameters in real time and make precise adjustments as needed. The operation is intuitive and simple, improving equipment adaptability and work efficiency. The movable casters 130 at the bottom of the enclosure 100 give the equipment good mobility, which facilitates installation, debugging and adjustment of working position, reduces the risk of damage during handling, extends the service life of the equipment, and ensures stable equipment performance.

[0055] Specifically, the intake pipe 111 is equipped with a gas drying layer.

[0056] Understandably, when humid gas enters the equipment, the evaporation of moisture absorbs heat, interfering with the heat exchange process and reducing heat exchange efficiency. The gas drying layer removes moisture from the incoming air, making the gas entering the heating chamber and participating in heat exchange drier, thus ensuring a smoother heat exchange process.

[0057] Compared with the prior art, the beneficial effect of this utility model is that the heat exchange plate 250 divides the receiving chamber 200 into a heating chamber and a gas management chamber, so that the gas entering through the inlet pipe 111 is heated by the heating component in the heating chamber, and then fully contacts the heat exchange plate 250 for heat exchange, before being discharged from the gas management chamber through the exhaust pipe 110. This design increases the contact area and time between the gas and the heat exchange plate 250, improves the efficiency of heat exchange, and thus enables more effective heating of the gas.

[0058] The heat exchange plate 250 divides the receiving chamber 200 into two functionally distinct chambers: a heating chamber for heating the gas and a gas management chamber for discharging and managing the gas. This partitioning makes the device structure more rational, with clearly defined functions for each part, facilitating operation and maintenance, and also improving the overall performance and stability of the device.

[0059] Since the heating component is located below the heat exchange plate 250, the temperature inside the heating chamber can be flexibly adjusted by controlling the power or working time of the heating component, thereby precisely controlling the temperature of the heat exchange plate 250 and achieving precise control of the temperature of the incoming gas to meet different usage requirements.

[0060] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An anti-condensation spiral coil electric heater for a low-temperature dust collector, characterized in that, include: The box has an internal compartment, and an air inlet pipe and an exhaust pipe are provided on the same side of the box. Both the air inlet pipe and the exhaust pipe are connected to the compartment. A heat exchange plate is disposed inside the receiving chamber, and a heating component is disposed below the heat exchange plate; The heat exchange plate divides the accommodating chamber into a heating chamber and a gas management chamber. The heating chamber is connected to the air inlet pipe, and the gas management chamber is connected to the exhaust pipe.

2. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 1, characterized in that, The heat exchange plate comprises, from top to bottom, an upper clamping plate, a heat exchange layer, and a lower clamping plate. The upper and lower clamping plates are fixedly connected to the inner side of the receiving chamber. The heat exchange layer is slidably connected to the upper and lower clamping plates. An exhaust vent is provided on the upper surface of the upper clamping plate, and an air inlet vent is provided on the lower surface of the lower clamping plate. The heat exchange layer is composed of several sets of corrugated plates stacked together. The length of both sides of the heat exchange layer is longer than that of the upper and lower clamping plates.

3. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 2, characterized in that, The inner side of the receiving chamber is provided with a slide, the shape of which corresponds to the two sides of the heat exchange layer, and the slide is connected to the two sides of the heat exchange layer.

4. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 1, characterized in that, The heating assembly includes two heaters, which are spiral in shape. Each of the two heaters is connected to a connecting wire at both ends, and the connecting wire passes through the heat exchange plate and the inner wall of the box to the upper surface of the box.

5. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 1, characterized in that, A junction box is provided on the upper surface of the enclosure. An installation sleeve is connected inside the junction box. A baffle is provided at one end of the installation sleeve. A first sealing gasket is fitted between the baffle and the installation sleeve. A first annular block is fitted at the end of the installation sleeve away from the baffle. A second sealing gasket is fitted between the first annular block and the installation sleeve. The side of the first annular block away from the second sealing gasket is in contact with the outer surface of the enclosure. The installation sleeve inside the junction box is fitted with a second annular block. The side of the second annular block closer to the first annular block is in contact with the inner surface of the junction box.

6. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 5, characterized in that, The junction box includes an upper box and a lower box, which are connected by bolts.

7. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 5, characterized in that, A shock-absorbing assembly is provided on the upper surface of the housing. The shock-absorbing assembly includes a fixing ring, which is sleeved on the outer side of the mounting sleeve and positioned between the first sealing gasket and the second sealing gasket. A support plate is provided on the side of the fixing ring near the housing. A support column is provided on the upper surface of the housing, which penetrates the support plate and is slidably connected to the support plate. A return spring is provided between the lower side of the support plate and the upper surface of the housing, and the return spring is sleeved on the outer side of the support column.

8. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 1, characterized in that, The outer side of the enclosure is provided with a maintenance door, the position of which corresponds to the position of the heat exchange plate, and a handle is provided on the side of the maintenance door away from the enclosure.

9. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 8, characterized in that, A display screen and control buttons are installed below the maintenance door; the control buttons are used to adjust parameters.

10. The anti-condensation spiral coil electric heater for a low-temperature dust collector according to claim 1, characterized in that, The bottom of the box is equipped with casters.

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