Heater for compression heat drying machine

Abstract

The utility model discloses a heater for a compression heat drying machine. The heater comprises a heat conduction pipe, a first electric heating wire and a shell, wherein air flow is introduced into the heat conduction pipe; the first electric heating wire is wound on the outer ring of the heat conduction pipe; a plurality of sets of blocking pieces are arranged on the inner side face of the heat conduction pipe around a shaft, the tail ends of the blocking pieces are obliquely arranged towards the air flow input end, and second electric heating wires are embedded in the blocking pieces. A plurality of groups of separation blades are arranged on the inner side face of the heat conduction pipe around the axis, and the tail ends of the separation blades are obliquely arranged towards the air flow input end. The first electric heating wire wound on the outer ring of the heat conduction pipe provides heat energy through an external power supply to heat the heat conduction pipe. And a second electric heating wire embedded in the separation blade is matched to provide heat energy through the external power supply to heat the separation blade. The control module is electrically connected with the first electric heating wire, the second electric heating wire and the external power source, and cooperative heating of the first electric heating wire and the second electric heating wire is ensured through reasonable control.

Description

Technical Field

[0001] The utility model relates to a heater for a compression heat absorption dryer, belonging to the technical field of heaters. Background Art

[0002] Heat-of-compression dryer heaters are a crucial component in heat-of-compression drying equipment, primarily used to remove moisture from compressed air to provide dry compressed air. In compressed air systems, if moisture in the air isn't effectively treated, it can condense in the pipes, affecting the normal operation of the equipment and even causing damage. The heater's function is to heat the desiccant (such as molecular sieves or silica gel) to increase its water absorption capacity, thereby more effectively removing moisture from the compressed air.

[0003] In some specialized applications, heat of compression dryers require shorter heaters. For example, when space is limited, a shorter heater may be required to accommodate the tight installation environment. Shorter heaters can reduce the overall size of the equipment, making it easier to install in tight spaces.

[0004] However, as the length of the heating tube is shortened, the heat energy provided by the heater may be insufficient to evenly heat the entire desiccant layer, resulting in poor heating effect on some desiccant layers.

[0005] Therefore, the purpose of this study is to design a short-distance heater with strong heating effect, high heat energy transfer efficiency and uniformity, and the ability to heat the desiccant efficiently and evenly. Utility Model Content

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a heater for a compression heat absorption dryer to solve the problems of the prior art.

[0007] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0008] A heater for a compression heat absorption dryer comprises a heat conducting pipe for introducing airflow, a first heating wire wound around the outer ring of the heat conducting pipe, and a housing sleeved over the heat conducting pipe and the first heating wire;

[0009] A plurality of baffles are arranged around the axis on the inner side of the heat conducting pipe, with the ends of the baffles tilted toward the airflow input end, and a second heating wire is embedded in the baffles;

[0010] Also included is a control module, the control module being electrically connected to the first heating wire, the second heating wire, and an external power source;

[0011] Airflow is introduced into the heat pipe and diverted through the plurality of baffles. The control module controls the first heating wire and the second heating wire to connect current to heat the heat pipe and the baffles for heat exchange with the airflow.

[0012] As a further improvement, the width of the baffle gradually decreases from the connection with the heat pipe toward the end.

[0013] As a further improvement, the thickness of the baffle gradually increases from the connection with the heat pipe toward the end.

[0014] As a further improvement, the first heating wire is welded and fixed to one end of multiple second heating wires, the baffle includes an upper layer and a lower layer with an edge welded below the upper layer, and the second heating wire is embedded between the upper layer and the lower layer.

[0015] As a further improvement, the second heating wire is arranged in an arc shape inside the baffle.

[0016] As a further improvement, the angle between the baffle and the wall of the heat conducting pipe on its inclined side is in the range of 30°-40°.

[0017] As a further improvement, the blocking plate includes multiple groups of first blocking plates arranged in a spiral shape around the central axis of the heat pipe, one first blocking plate is provided in each group, and adjacent first blocking plates are staggered.

[0018] As a further improvement, the blocking plate includes multiple groups of second blocking plates staggeredly arranged on the inner side wall of the heat pipe, and each group of the second blocking plates is provided with at least two or more.

[0019] As a further improvement, channels for airflow to pass through are provided between adjacent second baffles, and the channels between two adjacent groups of second baffles are staggered.

[0020] Beneficial effects:

[0021] The utility model arranges multiple sets of baffles around the inner side of the heat pipe, with the ends of the baffles tilted toward the airflow input end. This tilted arrangement can effectively increase the residence time of the airflow inside the heat pipe, ensuring that the airflow can fully contact the heat pipe.

[0022] A first heating wire wrapped around the outer ring of the heat pipe provides heat energy from an external power source, heating the heat pipe. A second heating wire embedded in the baffle also provides heat energy from an external power source, heating the baffle. A control module electrically connects the first and second heating wires, as well as the external power source, ensuring coordinated heating of the first and second heating wires through proper control.

[0023] By embedding a second heating wire inside the baffle for heat conduction, the airflow not only contacts the inner wall of the heat pipe, but also contacts the baffle in the heat conduction state, further improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The utility model is a schematic diagram of the structure of a heater for a compression heat absorption dryer.

[0026] Figure 2 The utility model is a schematic diagram of the structure of a heater for a compression heat absorption dryer in an installed state.

[0027] Figure 3 yes Figure 2 Enlarged structural diagram at point A in the middle.

[0028] Figure 4 This is a schematic diagram of a baffle splitting structure of the utility model.

[0029] Figure 5 This is a connection diagram of a heater module for a compression heat absorption dryer of the present invention.

[0030] Figure 6 The utility model is a side view structural diagram of a heater for a compression heat absorption dryer.

[0031] Figure 7 This is a schematic diagram of the first barrier layout structure of the utility model.

[0032] Figure 8 This is a schematic diagram of another layout structure of the second barrier of the present invention.

[0033] Figure 9 This is another schematic diagram of the layout structure of the second barrier of the present invention.

[0034] 1. Heat pipe; 11. First heating wire; 2. Housing; 12. Baffle; 13. Second heating wire; 31. Control module; 3. Controller; 121. Upper sheet; 122. Lower sheet; 123. First baffle; 124. Second baffle. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically specified.

[0037] Reference Figure 1-6 As shown, a heater for a heat of compression desiccant includes:

[0038] A heat conducting pipe 1 for passing airflow, a first heating wire 11 wrapped around the outer ring of the heat conducting pipe, and a housing 2 sleeved on the outside of the heat conducting pipe 1 and the first heating wire 11;

[0039] The inner side of the heat pipe 1 is provided with a plurality of baffles 12 arranged around the axis, the ends of the baffles 12 are tilted toward the airflow input end, and a second heating wire 13 is embedded in the baffles 12;

[0040] The control module 31 is electrically connected to the first heating wire 11, the second heating wire 13 and an external power source;

[0041] The heat pipe 1 is passed through to introduce airflow, which is diverted by the plurality of baffles 12 . The control module 31 controls the first heating wire 11 and the second heating wire 13 to connect current, heating the heat pipe 1 and the baffles 12 for heat exchange with the airflow.

[0042] Among them, the control module 31 is located in the controller 3, and the controller 3 is installed at one end outside the shell 2, and a temperature control module is also provided inside the heat pipe 1. The temperature control module is electrically connected to the control module 31, and the temperature control module is specifically a temperature sensor.

[0043] By arranging multiple sets of baffles 12 around the axis on the inner side of the heat pipe 1, with the ends of the baffles 12 tilted toward the airflow input end, this tilted arrangement can effectively increase the residence time of the airflow inside the heat pipe 1, ensuring that the airflow can fully contact the heat pipe 1.

[0044] A first heating wire 11 wrapped around the outer ring of heat pipe 1 provides heat energy from an external power source, heating heat pipe 1. A second heating wire 13, embedded in baffle 12, also provides heat energy from an external power source, heating baffle 12. A control module 31 is electrically connected to the first heating wire 11, the second heating wire 13, and the external power source, ensuring coordinated heating of the first heating wire 11, the second heating wire 13 through proper control.

[0045] Heat conduction is achieved by embedding the second heating wire 13 inside the baffle 12. The wind not only contacts the inner wall of the heat pipe 1, but also contacts the baffle 12 in the heat conducting state, further improving the heat exchange efficiency.

[0046] A temperature sensor is provided inside heat pipe 1 and electrically connected to control module 31. The temperature sensor monitors the temperature inside heat pipe 1 in real time and feeds the data back to control module 31. Based on the data fed back by the temperature sensor, control module 31 dynamically adjusts the heating power of first heating wire 11 and second heating wire 13 to ensure uniform temperature distribution throughout the desiccant layer.

[0047] Compared with the prior art, this solution extends the path of the airflow inside the heat pipe 1 through multiple sets of baffles 12 and the embedded second heating wire 13, increasing the contact time with the heating element, thereby ensuring uniform heating.

[0048] The real-time monitoring and intelligent control of the temperature control module further ensure the uniform distribution of temperature and avoid the problems of local overheating or insufficient heating.

[0049] The design of the baffle 12 increases the turbulence effect of the wind flow and improves the heat exchange efficiency. Due to the coordinated heating of the first heating wire 11 and the second heating wire 13, the utilization of heat energy is more efficient and energy waste is reduced.

[0050] By shortening the length of the heater, this solution can adapt to a more compact installation environment, making it easier to install the compression heat dryer in a small space.

[0051] Although the length of the heater is shortened, the design of multiple sets of baffles 12 and embedded heating wires ensures that the heating effect is not compromised.

[0052] At the same time, the introduction of the temperature control module makes the heating process more controllable, avoiding equipment damage caused by excessive temperature.

[0053] The design of multiple baffles 12 and embedded heating wires, combined with real-time monitoring by the temperature control module, effectively solves the problems of uneven heating and low thermal efficiency in short-range heaters. Compared with existing technologies, this system offers significant advantages in heating uniformity, thermal efficiency, compact design, reliability, and maintainability, making it suitable for use in various space-constrained compression heat desiccant applications.

[0054] The baffle 12 includes multiple groups of first baffles 123 arranged spirally around the central axis of the heat pipe 1. Each group includes one first baffle 123, with adjacent first baffles 123 arranged in a staggered arrangement. The width of the baffle 12 gradually decreases from the connection with the heat pipe toward the end. The thickness of the baffle 12 gradually increases from the connection with the heat pipe toward the end.

[0055] To increase the length of the airflow path, multiple groups of baffles 12 are arranged spirally around the central axis of the heat pipe 1, thereby increasing the length of the airflow path inside the heat pipe 1. This prolongs the contact time between the airflow and the heating element, further improving the heat exchange efficiency.

[0056] At the same time, the staggered arrangement of adjacent first baffles 123 can effectively increase the turbulence effect of the wind flow, so that the wind flow is more evenly distributed inside the entire heat pipe 1, avoiding the problem of insufficient local heat exchange.

[0057] Among them, the width of the baffle 12 gradually decreases from the connection with the heat pipe 1 toward the end, which can reduce the resistance of the airflow at the end of the baffle 12, and combined with the inclined design, it is easy to divert the airflow, guide it to the bottom end and then spread to both sides to enter the next group of baffles 12.

[0058] The design of gradually narrowing the width enables the airflow to be more evenly distributed between the baffles 12, thereby increasing the contact area between the airflow and the surface of the baffles 12 and further improving the heat exchange efficiency.

[0059] The thickness of the baffle 12 gradually increases from the connection point with the heat pipe 1 toward the end portion, which can improve the structural strength of the baffle 12 and ensure that it is not easily deformed or damaged under high temperature and high flow rate conditions.

[0060] At the same time, the design of gradually increasing thickness increases the heat capacity of the baffle 12, enabling it to maintain high temperature for a longer period of time, thereby more stably transferring heat energy to the wind flow. The wind flow diverted near the bottom can instead come into contact with the thinner baffle 12 with a higher temperature, which can quickly heat the wind flow.

[0061] In addition, the selection of materials for the heat pipe 1 and the baffle 12 is crucial to the heating effect and the reliability of the equipment.

[0062] Aluminum alloy has excellent thermal conductivity, quickly transferring heat from the heating wire to the airflow, improving heat exchange efficiency. Aluminum alloy is relatively lightweight, helping to reduce the overall weight of the equipment and facilitate installation and maintenance. Aluminum alloy also exhibits a certain degree of corrosion resistance, making it suitable for use in compressed air systems.

[0063] Copper alloys offer excellent thermal conductivity, enabling efficient heat transfer. They are also stable at high temperatures and are less susceptible to deformation. Copper alloys have moderate mechanical strength, meeting the structural requirements of baffle 12.

[0064] Ceramic materials have extremely high heat resistance and can operate in extreme temperatures. They also have excellent insulation properties, preventing direct contact between the heating wire and airflow, improving safety. They are also corrosion-resistant and suitable for use in environments containing moisture and other corrosive substances.

[0065] Taking into account factors such as heat transfer efficiency, mechanical strength, high temperature resistance and corrosion resistance, in this embodiment, the heat pipe 1 is made of aluminum alloy and the baffle 12 is made of copper alloy.

[0066] Through the above design, this solution not only solves the problem of uneven heating of short-distance heaters, but also improves the heat exchange efficiency and system reliability.

[0067] To facilitate the installation of the second heating wires 13, the first heating wire 11 and the plurality of second heating wires 13 are welded together at one end. The baffle 12 includes an upper sheet 121 and a lower sheet 122 welded to the edge below the upper sheet 121. The second heating wires 13 are embedded between the upper sheet 121 and the lower sheet 122. The second heating wires 13 are arranged in an arc shape inside the baffle 12.

[0068] The included angle between the baffle 12 and the wall of the heat conducting tube 1 on the inclined side thereof is in the range of 30°-40°.

[0069] By setting the included angle between the baffle 12 and the wall of the heat pipe 1 at 30°-40°, the wind flow can be effectively guided to generate more turbulence inside the heat pipe 1. The turbulence can enhance the contact between the wind flow and the surface of the heat pipe 1 and the baffle 12, thereby improving the heat exchange efficiency.

[0070] In this angle range, the turbulence effect of the wind flow is most significant, which can ensure that the wind flow is evenly distributed inside the heat pipe 1 and avoid local wind flow passing through too quickly, thereby causing insufficient heat transfer.

[0071] The 30-40° angle design increases the path length of the airflow inside the heat pipe 1, thereby increasing the contact time between the airflow and the heating element. This helps the airflow fully absorb heat and improves the heating efficiency of the desiccant.

[0072] When the airflow passes through the plurality of baffles 12 , the direction thereof will be continuously changed, so that the airflow is more evenly distributed inside the heat pipe 1 , thereby further improving the heating effect.

[0073] In the angle range of 30°-40°, the resistance of the wind when passing through the baffle 12 is moderate. The wind will not pass directly due to a small angle, nor will excessive resistance be increased due to a large angle, thereby affecting the passing speed of the wind.

[0074] The uniform heating effect can effectively prevent moisture in the airflow from condensing on the baffle 12 or the wall of the heat pipe 1, thereby avoiding equipment damage and performance degradation caused by condensation.

[0075] When the angle is 30°, a certain degree of turbulence will be generated when the airflow passes through the baffle 12, but it may not be enough to completely cover the entire interior of the heat pipe 1, resulting in insufficient heating in some areas.

[0076] When the angle is 40°, the turbulence effect is more significant, which can ensure that the wind flow fully contacts the surface of the heat pipe 1 and the baffle 12, but it may increase the resistance of the wind flow and affect the passing speed.

[0077] In this embodiment, the angle is 35°. Within this angle range, an optimal balance point can be found, which ensures the turbulence effect without significantly increasing the wind resistance.

[0078] Example 2

[0079] Reference Figure 7-9 As shown, this embodiment is basically the same as embodiment 1, except that:

[0080] The blocking pieces 12 include multiple groups of second blocking pieces 124 staggeredly arranged on the inner wall of the heat pipe 1 , and each group of the second blocking pieces 124 includes at least two or more.

[0081] A channel for airflow to pass through is provided between adjacent second baffles 124 , and the channels between two adjacent groups of second baffles 124 are staggered.

[0082] The multiple sets of staggered second baffles 124 can effectively guide the wind flow to generate more turbulence inside the heat pipe 1. The turbulence increases the contact between the wind flow and the heat pipe 1 and the baffle 12 surface, thereby improving the heat exchange efficiency.

[0083] The channels between two adjacent groups of second baffles 124 are staggered, so that the wind flow constantly changes direction when passing through these channels, further enhancing the turbulence effect of the wind flow and ensuring that the wind flow is evenly distributed throughout the heat pipe 1.

[0084] Each group is provided with a plurality of second baffles 124 , so that the path of the airflow inside the heat pipe 1 is more tortuous, thereby increasing the contact time and contact area between the airflow and the heating element.

[0085] The staggered arrangement of the channels makes the path of the airflow inside the heat pipe 1 more complicated, further prolonging the residence time of the airflow, ensuring that the airflow can fully absorb heat and improving the heating effect of the desiccant.

[0086] Airflow channels are provided between each set of baffles 12. The staggered placement of these channels increases turbulence while reducing overall airflow resistance. Proper channel design prevents excessive airflow resistance due to overly small channels, nor does it prevent airflow from passing directly through channels that are too large, leading to insufficient heat exchange.

[0087] Among them, such as Figure 7 As shown, each group of second baffles 124 is provided with two. The structure is simple, the manufacturing and installation costs are relatively low, and a basic turbulence effect can be provided, but in some cases it may not be enough to completely cover the entire interior of the heat pipe 1.

[0088] like Figure 8 As shown, each group of second baffles 124 is provided with three. Compared with the design of two second baffles 124 per group, the turbulence effect is increased, and the heat exchange efficiency is further improved. The setting of multiple baffles 12 makes the airflow more evenly distributed throughout the entire heat pipe 1 when passing through, improving the uniformity of heating.

[0089] like Figure 9 As shown, each set of second baffles 124 is provided with four. The design of four second baffles 124 provides maximum turbulence, ensuring that the airflow fully contacts the surface of the heat pipe 1 and the baffle 12. The greater number of second baffles 124 and the staggered arrangement of channels make the airflow path within the heat pipe 1 more complex, further improving heating uniformity and heat exchange efficiency.

[0090] The design of multiple staggered sets of second baffles 124 effectively increases the turbulence and residence time of the airflow, reduces airflow resistance, and improves heating uniformity, equipment reliability, and stability. This design not only optimizes the heating effect of short-range heaters but also ensures efficient operation in compact spaces. The specific arrangement of two, three, or four second baffles 124 per set can be selected based on the actual application scenario and equipment requirements to achieve optimal heating and fluid dynamics performance.

[0091] It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. However, those skilled in the art can clearly understand the details of the power mechanism, power supply system and control system on the premise that they understand the principle of the above-mentioned utility model. The control method of the application document is automatic control through the controller 3, and the control circuit of the controller 3 can be implemented by simple programming by those skilled in the art.

[0092] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0093] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A heater for a compression heat absorption dryer, characterized in that: include: A heat conducting pipe (1) for passing airflow, a first heating wire (11) wound around the outer ring of the heat conducting pipe (1), and a housing (2) sleeved on the outside of the heat conducting pipe (1) and the first heating wire (11); A plurality of baffles (12) are arranged around the axis on the inner side of the heat conducting pipe (1), the ends of the baffles (12) are tilted toward the airflow input end, and a second heating wire (13) is embedded and installed inside the baffles (12); It also includes a control module (31), wherein the control module (31) is electrically connected to the first heating wire (11), the second heating wire (13), and an external power source; Airflow is introduced into the heat conducting pipe (1), and the airflow is diverted by multiple groups of baffles (12). The control module (31) controls the first heating wire (11) and the second heating wire (13) to connect current, thereby heating the heat conducting pipe (1) and the baffles (12) to exchange heat with the airflow.

2. The heater for a heat of compression dryer according to claim 1, characterized in that: The width of the baffle (12) gradually decreases from the connection point with the heat conducting pipe (1) toward the end portion.

3. The heater for a heat of compression dryer according to claim 2, characterized in that: The thickness of the baffle (12) gradually increases from the connection point with the heat conducting pipe (1) toward the end portion.

4. A heater for a heat of compression drying machine according to claim 1 or 3, characterized in that: The first heating wire (11) and one end of a plurality of second heating wires (13) are welded and fixed, the baffle (12) comprises an upper layer (121) and a lower layer (122) whose edge is welded below the upper layer (121), and the second heating wire (13) is embedded between the upper layer (121) and the lower layer (122).

5. The heater for a heat of compression drying machine according to claim 4, characterized in that: The second heating wire (13) is arranged in an arc shape inside the baffle (12).

6. The heater for a heat of compression drying machine according to claim 5, characterized in that: The included angle between the baffle (12) and the wall of the heat conducting tube (1) on the inclined side thereof is in the range of 30°-40°.

7. The heater for a heat of compression drying machine according to claim 6, characterized in that: The baffles (12) include multiple groups of first baffles (123) arranged in a spiral pattern around the central axis of the heat conducting pipe (1), one first baffle (123) is provided in each group, and adjacent first baffles (123) are arranged in a staggered manner.

8. The heater for a heat of compression drying machine according to claim 6, characterized in that: The blocking pieces (12) include multiple groups of second blocking pieces (124) staggeredly arranged on the inner side wall of the heat conducting pipe (1), and each group of the second blocking pieces (124) is provided with at least two or more.

9. The heater for a heat of compression drying machine according to claim 8, characterized in that: Channels for airflow to pass through are provided between adjacent second baffles (124), and the channels between two adjacent groups of second baffles (124) are staggered.

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