Multi-heat-source heating device with dehumidification function

Abstract

The multi-heat-source heating device with the dehumidification function comprises a chamber body, a processing air inlet is formed in one end of the chamber body, an air supply outlet is formed in the other end of the chamber body, and a cold water dehumidification section, a rotary dehumidification section, a heating section, a filtering section and a fan section are sequentially arranged in the chamber body in the direction from the processing air inlet to the air supply outlet. The heating section comprises a fuel gas heating section and an electric heating section; an electric heating mode and a gas heating mode can be adopted, energy selection is diversified, and a user can freely switch according to actual requirements and energy supply conditions; the dehumidification function is integrated on the heating device, the multiple functions of heating and dehumidification are achieved, the occupied area and the number of equipment are reduced, and the initial investment cost and the installation space requirement of the equipment are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heating sections, and in particular to a multi-heat source heating device with a dehumidification function. Background Art

[0002] In the flash-drying production process of automotive coatings, the coating sprayed on the workpiece surface needs to be dehydrated during the film-forming process before the next spraying process can be carried out; as one of the commonly used flash-drying chamber heating methods, the heating device needs to provide a dehumidification function while meeting the process heating parameters.

[0003] In the traditional mode, a cold water dehumidification device is usually added to the front of the heating device. At least two devices are needed to complete the heating and dehumidification functions. In addition, traditional heating devices mostly use gas heating, which is easy to produce a large amount of NO due to its high combustion temperature. X Emissions and carbon emissions. Summary of the invention

[0004] In order to solve the above problem, the present invention provides a multi-heat source heating device with a dehumidification function to solve the problem.

[0005] In order to achieve the above objectives, this application provides the following technical solutions:

[0006] A multi-heat source heating device with a dehumidification function comprises a chamber body, one end of the chamber body is provided with a processed air inlet, and the other end is provided with an air supply outlet, and a cold water dehumidification section, a rotary dehumidification section, a heating section, a filtering section and a fan section are sequentially arranged in the chamber body from the processed air inlet to the air supply outlet, and the heating section comprises a gas heating section and an electric heating section.

[0007] It is further configured as follows: the cold water dehumidification section includes a copper tube and aluminum fins, and cold water is provided inside the copper tube.

[0008] It is further configured as follows: the rotary dehumidification section includes a rotating wheel, a processing area is provided on the rotating wheel, and a hydrophilic material is provided on the processing area.

[0009] It is further configured as follows: the rotary dehumidification section also includes a motor installed inside the chamber body, a transmission wheel is provided at the output end of the motor, and a transmission belt is connected between the transmission wheel and the circumferential surface of the rotating wheel.

[0010] It is further configured as follows: the gas heating section includes a burner and a combustion tube, a heat exchange tube, and a smoke exhaust pipe installed inside the chamber body, one end of the combustion tube is connected to the burner, and the other end is connected to the heat exchange tube, the smoke exhaust pipe is connected to the other end of the heat exchange tube, and the other end of the smoke exhaust pipe extends to the outside.

[0011] It is further configured as follows: the electric heating section adopts an electric heater, and the electric heater is formed by splicing a plurality of electric heating tubes.

[0012] It is further configured that: the filter section uses multiple filter elements to filter particles in the wind.

[0013] It is further configured as follows: a return air outlet is provided on one side of the chamber body close to the processed air inlet.

[0014] It is further configured that: a regeneration zone is provided in the chamber body, a regeneration baffle is provided in the chamber body, and a regeneration fan is installed in the regeneration zone.

[0015] It is further configured that: a yield opening is provided on the regeneration partition.

[0016] Compared with the prior art, the beneficial technical effects of the present invention are:

[0017] 1. Multiple heat source selection: The present invention can adopt two methods of electric heating and gas heating, and the energy selection is diverse. Users can switch freely according to actual needs and energy supply conditions; it can meet the current demand for multi-heat source heating, especially in the case of energy price fluctuations or unstable supply, providing greater flexibility. Moreover, the center temperature of the electric heater is much lower than the nitrogen oxide generation temperature (above 1500 degrees Celsius), and almost no nitrogen oxide emissions are generated, which meets environmental protection requirements.

[0018] 2. Integrated design: The present invention integrates the dehumidification function into the heating device to achieve multiple functions of heating and dehumidification, reducing the floor space and quantity of the equipment, and reducing the initial investment cost and installation space requirements of the equipment; furthermore, the device adopts a modular design, and each part (such as the heating section, dehumidification section, and filtration section) is connected by a flange, which is convenient for installation, maintenance and replacement, thereby improving the reliability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the rotary dehumidification section of the present invention.

[0022] Figure numerals: 1. Chamber body; 2. Process air inlet; 3. Air supply outlet; 4. Cold water dehumidification section; 5. Rotary dehumidification section; 7. Filter section; 8. Fan section; 9. Return air outlet; 10. Inspection door; 11. Motor; 12. Rotor; 13. Drive wheel; 14. Drive belt; 15. Electric heating section; 16. Burner; 17. Combustion tube; 18. Heat exchange tube; 19. Smoke exhaust pipe. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Example

[0027] Reference Figure 1-Figure 2 , is a multi-heat source heating device with dehumidification function disclosed in the present invention, including a chamber body 1, a process air inlet 2 is arranged at one end of the chamber body 1, and an air supply port 3 is arranged at the other end. A cold water dehumidification section 4, a rotary dehumidification section 5, a heating section, a filtering section 7 and a fan section 8 are arranged in sequence in the direction from the process air inlet 2 to the air supply port 3 in the chamber body 1. A return air port 9 is arranged on the side of the chamber body 1 close to the process air inlet 2. The return air from the drying room enters the interior of the chamber body 1 through the return air port 9. An inspection door 10 is arranged on the chamber body 1.

[0028] The present invention realizes deep dehumidification through the cold water dehumidification section 4 and the rotary dehumidification section 5. The dehumidified treated air is mixed with the return air from the drying chamber and then heated to the process temperature through the heating section. After heating, it is delivered from the air outlet 3.

[0029] Specifically, the cold water dehumidification section 4 includes copper tubes and aluminum fins. Cold water flows inside the copper tubes and is cooled down when passing over the surfaces of the copper tubes and the fins. The temperature of the air to be treated is usually 25°C, the relative humidity is 75%, and the dew point is 20°C. When the temperature of the air to be treated is reduced to below 20°C, condensed water will precipitate and preliminary dehumidification will be performed.

[0030] The rotary dehumidification section 5 includes a motor 11 installed inside the chamber body 1 and a rotating wheel 12 rotatably arranged inside the chamber body 1. A transmission wheel 13 is arranged at the output end of the motor 11. A transmission belt 14 is connected between the transmission wheel 13 and the circumferential surface of the rotating wheel 12. The transmission mode can be set to a chain sprocket transmission, or a belt and pulley mode can be selected to transmit the rotatable belt and pulley with a toothed surface;

[0031] In this embodiment, a treatment zone is provided on the rotating wheel 12, and the treatment zone occupies three quarters of the rotating wheel 12. The treatment zone is provided with a hydrophilic material, such as silica gel, and a first partition is provided at the circumferential head and the circumferential tail of the treatment zone;

[0032] A regeneration zone is provided in the chamber body 1. In the present embodiment, a regeneration partition is provided in the chamber body 1 to isolate the regeneration zone in the chamber body 1, and a clearance opening is provided on the regeneration partition to allow the wheel 12 to rotate normally, thereby avoiding interference between the regeneration partition and the wheel 12.

[0033] There is high-temperature wind in the regeneration area for desorption;

[0034] The wheel 12 is driven by the motor 11 to rotate at a fixed speed. After the preliminary dehumidification treatment, the moisture in the wind is adsorbed by the treatment area of ​​the wheel 12. After the moisture is adsorbed, the wheel 12 rotates to the regeneration area. The moisture in the treatment area is desorbed by the high-temperature wind in the regeneration area, completing the adsorption and desorption cycle to achieve continuous dehumidification.

[0035] The fresh air after secondary dehumidification of the rotary dehumidification section 5 is heated to the process temperature by the heating section. The heating section includes a gas heating section and an electric heating section 15, so that it has gas heating and electric heating functions, and achieves mutual switching between gas heating and electric heating;

[0036] Specifically, the gas heating section includes a burner 16, a combustion tube 17, a heat exchange tube 18, and a smoke exhaust pipe 19, wherein the combustion tube 17 is horizontally installed inside the chamber body 1 through a flange to facilitate later replacement and maintenance, and the heat exchange tube 18 is also horizontally installed inside the entity, the burner 16 is placed outside the chamber body 1, one end of the combustion tube 17 is connected to the burner 16, and the other end is connected to the heat exchange tube 18, the smoke exhaust pipe 19 is connected to the other end of the heat exchange tube 18, and the end of the smoke exhaust pipe 19 away from the heat exchange tube 18 extends to the outside;

[0037] The electric heating section 15 is heated by an electric heater; in this embodiment, the electric heater is formed by splicing a plurality of electric heating tubes, and the electric heater is bolted to the inside of the chamber body 1 through a flange surface, which is convenient for later replacement and maintenance.

[0038] The heating section of the present invention adopts multi-heat source heating, which can adopt both electric heating and gas heating, thus meeting the current demand for multi-heat source heating.

[0039] In the present invention, the filter section 7 uses multiple filter elements to filter particles in the filtered air to ensure the cleanliness of the equipment and the vehicle surface; in this embodiment, the filter elements used include but are not limited to: primary filter, medium filter, high efficiency filter, filter mesh, filter cloth, activated carbon, filter material, etc.

[0040] The working principle and beneficial effects of the present invention are:

[0041] The treated air first passes through the cold water dehumidification section 4 to cool down, the fresh air is reduced to below the dew point, condensed water is precipitated, and preliminary dehumidification is performed. Then the treated air passes through the treatment area of ​​the rotor 12, and the water is further absorbed by the hydrophilic material of the rotor 12, and deep dehumidification is performed;

[0042] The return air from the drying room and the treated air after secondary deep dehumidification are mixed into low-humidity circulating air at the front end of the heating section, and then heated by the heating section, filtered by the filter section 7, and finally sent to the drying room through the fan section 8 and the air outlet 3;

[0043] In the present invention, a regeneration fan 20 is installed in the regeneration zone. The wind exhausted from the exhaust pipe 19 of the regeneration fan 20, part of the wind delivered from the air supply port 3, and part of the return air are mixed to form high-temperature wind to desorb moisture from the hydrophilic material in the treatment zone. An exhaust port is opened on one side of the regeneration zone near the exhaust end of the regeneration fan 20 for discharging the return air.

[0044] In the invention, the rotary dehumidification section 5 is integrated in the chamber body 1, and the regeneration fan 20 in the chamber body 1 is used to extract high-temperature air for flash drying, thereby meeting the demand for low-humidity circulating air;

[0045] The wind discharged from the smoke exhaust pipe 19, part of the wind sent out from the air supply port 3, and part of the return air are used as high-temperature wind, and the energy of the equipment itself is fully utilized. In the case of one less burner 16, the purpose of heating and dehumidification is achieved.

[0046] The present invention achieves efficient energy utilization, improved environmental protection performance and convenient maintenance through ingenious design. The device ingeniously integrates the dehumidification function into the heating device, which not only saves space, but also realizes the complete process from preliminary dehumidification to deep dehumidification through collaborative work, ensuring that the humidity of the treated air meets the process requirements. At the same time, the heating section has gas heating and electric heating functions, which can be switched according to actual needs and energy prices, providing flexibility in energy selection. In addition, the high-temperature air extracted by the regeneration fan 20 in the regeneration area is used in the desorption process of the impeller 12, which makes full use of the energy of the equipment itself and reduces dependence on external energy.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-heat source heating device with a dehumidification function, characterized in that: The invention comprises a chamber body (1), wherein one end of the chamber body (1) is provided with a process air inlet (2), and the other end is provided with an air supply port (3), and a cold water dehumidification section (4), a rotary dehumidification section (5), a heating section, a filtering section (7) and a fan section (8) are sequentially arranged in the chamber body (1) from the process air inlet (2) to the air supply port (3), wherein the heating section comprises a gas heating section and an electric heating section (15).

2. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: The cold water dehumidification section (4) comprises a copper tube and aluminum fins, and cold water is arranged inside the copper tube.

3. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: The rotary dehumidification section (5) comprises a rotating wheel (12), a treatment area is provided on the rotating wheel (12), and a hydrophilic material is provided on the treatment area.

4. The multi-heat source heating device with dehumidification function according to claim 3, characterized in that: The rotary dehumidification section (5) further comprises a motor (11) installed inside the chamber body (1), a transmission wheel (13) being provided at the output end of the motor (11), and a transmission belt (14) being connected between the transmission wheel (13) and the circumferential surface of the rotating wheel (12).

5. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: The gas heating section comprises a burner (16), a combustion tube (17), a heat exchange tube (18), and a smoke exhaust pipe (19) installed inside the chamber body (1); one end of the combustion tube (17) is connected to the burner (16), and the other end is connected to the heat exchange tube (18); the smoke exhaust pipe (19) is connected to the other end of the heat exchange tube (18), and the other end of the smoke exhaust pipe (19) extends to the outside.

6. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: The electric heating section (15) adopts an electric heater, and the electric heater is formed by splicing a plurality of electric heating tubes.

7. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: The filter section (7) uses a plurality of filter elements to filter particles in the wind.

8. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: A return air port (9) is provided on one side of the chamber body (1) close to the treatment air inlet (2).

9. The multi-heat source heating device with dehumidification function according to claim 1, characterized in that: A regeneration zone is arranged in the chamber body (1), a regeneration baffle is arranged in the chamber body (1), and a regeneration fan (20) is installed in the regeneration zone.

10. The multi-heat source heating device with dehumidification function according to claim 9, characterized in that: There is a give-way opening on the regeneration partition.

Images