Energy-saving rotary dehumidifier

Abstract

The utility model discloses an energy-saving rotary dehumidifier, which belongs to the technical field of dehumidification equipment and comprises at least one evaporation and condensation component and at least one dehumidification rotary wheel. The low-temperature end of the evaporation and condensation assembly is arranged at the air inlet end of the treatment area of the dehumidification rotating wheel; the high-temperature end of the evaporation and condensation assembly is arranged at the air inlet end of the regeneration area of the dehumidification rotating wheel. Compared with traditional surface cooling equipment, the evaporation and condensation assembly can provide lower refrigeration temperature, so that a large amount of moisture can be condensed out before fresh air enters the dehumidification rotating wheel, the working pressure of the dehumidification rotating wheel can be reduced, and the temperature of the treated fresh air can also be reduced; compared with an existing dehumidifier, conditions can be created for subsequent surface cooling equipment omission and low-temperature regeneration work of the dehumidification rotating wheel through heat emitted by the evaporation and condensation assembly, and therefore the effects of saving equipment manufacturing cost, reducing dehumidification cost and saving energy and reducing emission are achieved, and meanwhile the service life of equipment can be indirectly prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of dehumidification equipment, and particularly relates to an energy-saving rotary dehumidifier. Background Art

[0002] In order to ensure the overall dehumidification effect, existing rotary dehumidifiers usually set at least one dehumidification wheel in the flow direction of the fresh air. However, because the dehumidification wheel releases a large amount of heat during operation, this situation is not only not conducive to the precipitation of moisture in the fresh air, but also causes the temperature of the treated fresh air to be too high, thus failing to meet the temperature requirements specified by the working environment. Therefore, manufacturers usually install a certain number of surface cooling devices at the air inlet and outlet ends of the dehumidification wheel to meet the needs of condensation dehumidification and cooling. However, in actual use, it is found that due to the excessive heat released by the dehumidification wheel, in order to meet the cooling requirements, the surface cooling device is often in a high-load working state, which will not only seriously shorten the service life of the surface cooling device, but also significantly increase the overall energy consumption of the dehumidifier, thereby increasing the cost of dehumidification. Utility Model Content

[0003] The technical problem to be solved by the utility model is: how to provide an energy-saving rotary dehumidifier which can ensure the dehumidification effect and reduce the overall energy consumption.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An energy-saving rotary dehumidifier comprises at least one evaporation condensation component and at least one dehumidification rotary wheel;

[0006] The low temperature end of the evaporation and condensation assembly is arranged at the air inlet end of the treatment area of ​​the dehumidification wheel;

[0007] The high temperature end of the evaporation and condensation assembly is arranged at the air inlet end of the regeneration zone of the dehumidification wheel.

[0008] Further, the fresh air passes through the processing area of ​​the dehumidification wheel to form a fresh air processing path;

[0009] The regeneration wind passes through the regeneration area of ​​the dehumidification wheel to form a wheel regeneration path;

[0010] The low-temperature end of the evaporative condensation component is arranged on the fresh air processing path;

[0011] The high temperature end of the evaporation-condensation component is arranged on the regeneration path of the rotor.

[0012] Furthermore, the evaporation-condensation assembly comprises a direct expansion heat pump evaporator, a compressor, a condenser and a throttle valve which are sequentially connected and form a circulation loop;

[0013] The direct expansion heat pump evaporator is arranged on the fresh air processing path;

[0014] The direct expansion heat pump evaporator is arranged at the air inlet end of the processing area of ​​the dehumidification wheel.

[0015] Furthermore, the evaporative condensation assembly further includes an air heat exchanger;

[0016] Part of the fresh air passes through the condenser and the air heat exchanger in sequence to form a regeneration air supply path;

[0017] The air heat exchanger is arranged on the regeneration path of the rotor;

[0018] The air heat exchanger is arranged at the air inlet end of the regeneration zone of the dehumidification wheel.

[0019] Further, the number of the evaporation-condensation components is two;

[0020] Along the fresh air flow direction, the fresh air processing path includes a fresh air valve, a primary filter, a first dehumidification wheel, a first air blower, a second filter, a second dehumidification wheel, a second air blower and an air supply valve arranged in sequence;

[0021] A direct expansion heat pump evaporator of the evaporation-condensation assembly is arranged between the primary filter and the first dehumidification wheel;

[0022] Another direct expansion heat pump evaporator of the evaporation-condensation assembly is arranged between the second air blower and the air supply valve.

[0023] Further, along the regeneration wind flow direction, the rotor regeneration path includes a first regeneration heater, a second regeneration heater and a regeneration fan which are arranged in sequence;

[0024] The regeneration zone of the second dehumidification rotor is arranged between the first regeneration heater and the second regeneration heater;

[0025] The regeneration zone of the first dehumidification wheel is arranged between the first regeneration heater and the air inlet end of the regeneration fan;

[0026] An air heat exchanger of the evaporative condensing assembly is arranged at the air inlet end of the first regeneration heater;

[0027] Another air heat exchanger of the evaporative condensing assembly is arranged at the air inlet end of the second regeneration heater.

[0028] The beneficial effect of the utility model is that the energy-saving rotary dehumidifier provided by the utility model, compared with the traditional surface cooling equipment, the evaporative condensing component can provide a lower refrigeration temperature, so that a large amount of moisture can be condensed out of the fresh air before entering the dehumidification wheel, which can not only reduce the working pressure of the dehumidification wheel, but also reduce the temperature of the treated fresh air, thereby eliminating the subsequent surface cooling equipment and creating conditions for using the heat emitted by the evaporative condensing component to perform low-temperature regeneration of the dehumidification wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 Shown is a working principle diagram of an energy-saving rotary dehumidifier according to a specific embodiment of the utility model;

[0030] Figure 2 Shown is a working principle diagram of another energy-saving rotary dehumidifier according to a specific embodiment of the utility model;

[0031] Figure 3 Shown is a working principle diagram of another energy-saving rotary dehumidifier according to a specific embodiment of the utility model;

[0032] Description of labels:

[0033] 1. Evaporation and condensation components; 11. Direct expansion heat pump evaporator; 12. Compressor; 13. Condenser; 14. Throttle valve; 15. Air heat exchanger;

[0034] 2. Fresh air processing path; 21. Fresh air valve; 22. Primary filter; 23. First dehumidification wheel; 24. First air blower; 25. Second filter; 26. Second dehumidification wheel; 27. Second air blower; 28. Air supply valve;

[0035] 3. Rotor regeneration path; 31. First regeneration heater; 32. Second regeneration heater; 33. Regeneration fan;

[0036] 4. Regeneration air supply path;

[0037] 5. Rotor regeneration auxiliary circuit; 51. Regeneration air valve;

[0038] 6. The first surface cooler;

[0039] 7. Second surface cooler;

[0040] 8. The third cooler. DETAILED DESCRIPTION

[0041] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0042] The most critical concept of the utility model is that the evaporative condensation component can provide a lower refrigeration temperature, so that a large amount of moisture can be condensed from the fresh air before entering the dehumidification wheel, which can not only reduce the working pressure of the dehumidification wheel, but also reduce the temperature of the treated fresh air, thereby eliminating the subsequent surface cooling equipment and creating conditions for using the heat emitted by the evaporative condensation component to perform low-temperature regeneration of the dehumidification wheel.

[0043] Please refer to Figures 1 to 3 The energy-saving rotary dehumidifier provided by the utility model comprises at least one evaporation condensation component 1 and at least one dehumidification rotary wheel;

[0044] The low temperature end of the evaporation condensation assembly 1 is arranged at the air inlet end of the treatment area of ​​the dehumidification wheel;

[0045] The high temperature end of the evaporation-condensation assembly 1 is arranged at the air inlet end of the regeneration zone of the dehumidification wheel.

[0046] From the above description, it can be seen that the beneficial effects of the utility model are: providing an energy-saving rotary dehumidifier. Compared with traditional surface cooling equipment, the evaporative condensing component 1 can provide a lower refrigeration temperature, so that a large amount of moisture can be condensed from the fresh air before entering the dehumidification wheel, which can not only reduce the working pressure of the dehumidification wheel, but also reduce the temperature of the treated fresh air; compared with the existing dehumidifier, it can create conditions for subsequently eliminating the surface cooling equipment and using the heat emitted by the evaporative condensing component 1 to perform low-temperature regeneration of the dehumidification wheel.

[0047] Further, the fresh air passes through the processing area of ​​the dehumidification wheel to form a fresh air processing path 2;

[0048] The regeneration wind passes through the regeneration area of ​​the dehumidification wheel to form a wheel regeneration path 3;

[0049] The low-temperature end of the evaporation-condensation component 1 is arranged on the fresh air processing path 2;

[0050] The high temperature end of the evaporation-condensation assembly 1 is arranged on the wheel regeneration path 3 .

[0051] Furthermore, the evaporation-condensation assembly 1 comprises a direct expansion heat pump evaporator 11, a compressor 12, a condenser 13 and a throttle valve 14 which are sequentially connected and form a circulation loop;

[0052] The direct expansion heat pump evaporator 11 is arranged on the fresh air processing path 2;

[0053] The direct expansion heat pump evaporator 11 is arranged at the air inlet end of the processing zone of the dehumidification wheel.

[0054] From the above description, it can be seen that the design has made specific improvements to the internal structure of the dehumidifier and the composition structure of the evaporation and condensation component 1. The refrigeration performance of the direct expansion heat pump evaporator 11 can provide structural support for the refrigerant temperature to be reduced to 2°C. Therefore, when the fresh air from the outside passes through the condensation and dehumidification of the direct expansion heat pump evaporator 11, it can enter the dehumidification wheel at a temperature and humidity state of 3°C and 4.2g / kg. After deep dehumidification by the dehumidification wheel, the medium-temperature and low-humidity gas at a temperature and humidity state of 16.5°C and 0.7g / kg is obtained, which can create corresponding conditions for eliminating subsequent surface cooling equipment, thereby achieving the effect of energy saving, emission reduction and reducing equipment costs.

[0055] Furthermore, the evaporation-condensation assembly 1 further includes an air heat exchanger 15;

[0056] Part of the fresh air passes through the condenser 13 and the air heat exchanger 15 in sequence to form a regeneration air supply path 4;

[0057] The air heat exchanger 15 is arranged on the rotor regeneration path 3;

[0058] The air heat exchanger 15 is disposed at the air inlet end of the regeneration zone of the dehumidification wheel.

[0059] From the above description, it can be seen that since the condenser 13 will also generate a certain amount of heat during operation, when the fresh air from the outside passes through the condenser 13, the temperature of the fresh air will be heated to about 70°C. After passing through the air heat exchanger 15, this part of the gas will transfer part of the heat to the air heat exchanger 15, so that the regenerated air can achieve a preliminary warming effect after passing through the air heat exchanger 15, and then before entering the dehumidification wheel, it can reduce the working pressure of the relevant heating equipment, thereby achieving the effect of energy saving and emission reduction.

[0060] Further, the number of the evaporation-condensation components 1 is two;

[0061] Along the fresh air flow direction, the fresh air processing path 2 includes a fresh air valve 21, a primary filter 22, a first dehumidification rotor 23, a first blower 24, a second filter 25, a second dehumidification rotor 26, a second blower 27 and an air supply valve 28 arranged in sequence;

[0062] A direct expansion heat pump evaporator 11 of an evaporation-condensation assembly 1 is disposed between a primary filter 22 and a first dehumidification rotor 23;

[0063] The direct expansion heat pump evaporator 11 of the other evaporation-condensation assembly 1 is arranged between the second air blower 27 and the air blow valve 28 .

[0064] Further, along the regeneration wind flow direction, the rotor regeneration path 3 includes a first regeneration heater 31, a second regeneration heater 32 and a regeneration fan 33 which are arranged in sequence;

[0065] The regeneration zone of the second dehumidification rotor 26 is arranged between the first regeneration heater 31 and the second regeneration heater 32;

[0066] The regeneration zone of the first dehumidification rotor 23 is arranged between the first regeneration heater 31 and the air inlet end of the regeneration fan 33;

[0067] An air heat exchanger 15 of an evaporative condensation assembly 1 is disposed at the air inlet end of the first regenerative heater 31;

[0068] The air heat exchanger 15 of the other evaporation-condensation assembly 1 is arranged at the air inlet end of the second regeneration heater 32 .

[0069] From the above description, it can be seen that the design has made specific improvements to the internal structure of the dehumidifier, as well as the layout relationship between the evaporation and condensation component 1 and the internal structure of the dehumidifier, so as to reduce the energy consumption of the dehumidification wheel and the regenerative heating equipment, thereby reducing the dehumidification cost while also achieving the effect of energy saving and emission reduction.

[0070] Furthermore, a portion of the fresh air between the first blower 24 and the second filter 25 passes through the regeneration area of ​​the second dehumidification rotor 26 to form a rotor regeneration auxiliary path 5, and the rotor regeneration auxiliary path 5 is connected to the rotor regeneration path 3 through the first regeneration heater 31;

[0071] A regeneration air valve 51 is provided on the rotor regeneration auxiliary path 5;

[0072] The regeneration air valve 51 is disposed between the first air blower 24 and the second dehumidification wheel 26 .

[0073] From the above description, it can be seen that the design has made specific improvements to the structure and layout of the rotor regeneration path 3 and the rotor regeneration auxiliary path 5. By opening the regeneration air valve 51 and driven by the regeneration fan 33, a part of the fresh air can be introduced from the rotor regeneration auxiliary path 5 into the rotor regeneration path 3, and then through the heating effect of the first regeneration heater 31 and the second regeneration heater 32, the moisture adsorbed by the first dehumidification wheel 23 and the second dehumidification wheel 26 can be taken away by the high-temperature regeneration air, thereby restoring the moisture absorption capacity of the first dehumidification wheel 23 and the second dehumidification wheel 26, so that the dehumidifier can continue to dehumidify.

[0074] The energy-saving rotary dehumidifier of the utility model can be used for dehumidification work of the environment.

[0075] Please refer to Figure 1 , Embodiment 1 of the present utility model is:

[0076] An energy-saving rotary dehumidifier comprises two evaporation condensation components 1; fresh air passes through the processing area of ​​the dehumidification rotary wheel to form a fresh air processing path 2; regeneration air passes through the regeneration area of ​​the dehumidification rotary wheel to form a rotary wheel regeneration path 3; the evaporation condensation component 1 comprises an air heat exchanger 15, and a direct expansion heat pump evaporator 11, a compressor 12, a condenser 13 and a throttle valve 14 which are connected in sequence and form a circulation loop; the direct expansion heat pump evaporator 11 is arranged on the fresh air processing path 2; the direct expansion heat pump evaporator 11 is arranged at the air inlet end of the processing area of ​​the dehumidification rotary wheel; part of the fresh air passes through the regeneration area of ​​the dehumidification rotary wheel in sequence; The condenser 13 and the air heat exchanger 15 form a regeneration air supply path 4; the air heat exchanger 15 is arranged on the rotor regeneration path 3; the air heat exchanger 15 is arranged at the air inlet end of the regeneration zone of the dehumidification rotor; along the fresh air flow direction, the fresh air processing path 2 includes a fresh air valve 21, a primary filter 22, a first dehumidification rotor 23, a first air blower 24, a second filter 25, a second dehumidification rotor 26, a second air blower 27 and an air supply valve 28 arranged in sequence; a direct expansion heat pump evaporator 11 of an evaporation condensation component 1 is arranged between the primary filter 22 and the first dehumidification rotor The direct expansion heat pump evaporator 11 of another evaporative condensing component 1 is arranged between the second air blower 27 and the air supply valve 28; along the flow direction of the regeneration wind, the wheel regeneration path 3 includes a first regeneration heater 31, a second regeneration heater 32 and a regeneration fan 33 arranged in sequence; the regeneration zone of the second dehumidifying wheel 26 is arranged between the first regeneration heater 31 and the second regeneration heater 32; the regeneration zone of the first dehumidifying wheel 23 is arranged between the first regeneration heater 31 and the air inlet end of the regeneration fan 33; the air of an evaporative condensing component 1 The heat exchanger 15 is arranged at the air inlet end of the first regeneration heater 31; the air heat exchanger 15 of another evaporative condensing component 1 is arranged at the air inlet end of the second regeneration heater 32; a part of the fresh air between the first air supply fan 24 and the second filter 25 passes through the regeneration area of ​​the second dehumidification wheel 26 to form a wheel regeneration auxiliary path 5, and the wheel regeneration auxiliary path 5 is connected with the wheel regeneration path 3 through the first regeneration heater 31; a regeneration air valve 51 is provided on the wheel regeneration auxiliary path 5; the regeneration air valve 51 is arranged between the first air supply fan 24 and the second dehumidification wheel 26.

[0077] The working principle of the utility model is:

[0078] Fresh air processing stage: The fresh air from the outside passes through the fresh air valve 21, the primary filter 22, the processing area of ​​the first dehumidification wheel 23, the first blower 24, the second filter 25, the processing area of ​​the second dehumidification wheel 26, the second blower 27 and the blower valve 28 along the fresh air processing path 2. Since the direct expansion heat pump evaporator 11 of the evaporation condensation component 1 can reduce the refrigerant temperature to 2°C, the fresh air with a temperature and humidity of 35.2°C and 28.5g / kg outside can be cooled to 3°C and 4.2g / k g state into the dehumidification wheel, and after deep dehumidification by the first dehumidification wheel 23 and the second dehumidification wheel 26, medium-temperature and low-humidity gas with temperature and humidity of 16.5°C, 0.7g / kg and 21°C, 0.01g / kg are obtained respectively; finally, the direct expansion heat pump evaporator 11 of another evaporation and condensation component 1 converts the dehumidified medium-temperature and low-humidity gas into low-temperature and low-humidity gas with temperature and humidity of 15°C, 0.01g / kg, and the air supply valve 28 introduces the gas into the indoor environment, so as to achieve the dehumidification effect.

[0079] Wheel regeneration stage: Since the direct expansion heat pump evaporator 11 of the evaporative condensing component 1 has an excellent cooling effect, a large amount of water in the fresh air can be analyzed before the dehumidification wheel deeply dehumidifies, thereby significantly reducing the working pressure of the first dehumidification wheel 23 and the second dehumidification wheel 26, as well as the adsorbed moisture. Therefore, only the heat generated by the condenser 13 of the evaporative condensing component 1 during operation and the low-power heating of the first regeneration heater 31 and the second regeneration heater 32 can enable the first dehumidification wheel 23 and the second dehumidification wheel 26 to complete the regeneration work under low temperature conditions, thereby ensuring that the first dehumidification wheel 23 and the second dehumidification wheel 26 can continue to dehumidify while effectively reducing the working capacity of the first regeneration heater 31 and the second regeneration heater 32, thereby achieving the effect of energy saving and emission reduction.

[0080] Please refer to Figure 2 The difference between the second embodiment of the present invention and the first embodiment is that:

[0081] An energy-saving rotary dehumidifier, based on the first embodiment, also includes a first surface cooler 6 and a second surface cooler 7; the number of the evaporative condensation component 1 is one; along the flow direction of fresh air, the first surface cooler 6 and the direct expansion heat pump evaporator 11 of the evaporative condensation component 1 are arranged in sequence between the primary filter 22 and the processing area of ​​the first dehumidification rotary wheel 23; the second surface cooler 7 is arranged between the second air supply fan 27 and the air supply valve 28; because the direct expansion heat pump evaporator has a good condensation and cooling effect, even if the first surface cooler 6 and the second surface cooler 7 are arranged, the energy consumption of the first surface cooler 6 and the second surface cooler 7 can be lower than the energy consumption of the surface cooling equipment inside the traditional dehumidifier, thereby achieving the effect of energy saving and emission reduction.

[0082] Please refer to Figure 3The difference between the third embodiment of the present invention and the second embodiment is that:

[0083] An energy-saving rotary dehumidifier further includes a third surface cooler 8 based on the second embodiment; the third surface cooler 8 is arranged between the first air supply fan 24 and the second filter 25; since the direct expansion heat pump evaporation has a good condensation and cooling effect, when the fresh air passes through the deep dehumidification of the first dehumidification wheel 23, the temperature and humidity values ​​of the fresh air can be significantly lower than the temperature and humidity values ​​after being processed by a traditional dehumidifier. Therefore, even if the third surface cooler 8 is set, the working pressure of the third surface cooler 8 will be significantly lower than the working pressure of the surface cooling equipment inside the traditional dehumidifier, thereby achieving energy saving and emission reduction while also extending the service life of the surface cooling equipment.

[0084] To sum up, the energy-saving rotary dehumidifier provided by the utility model, compared with the traditional surface cooling equipment, the evaporative condensing component can provide a lower refrigeration temperature, so that a large amount of moisture can be condensed from the fresh air before entering the dehumidification wheel, which can not only reduce the working pressure of the dehumidification wheel, but also reduce the temperature of the treated fresh air; compared with the existing dehumidifier, it can create conditions for subsequently eliminating the surface cooling equipment and using the heat emitted by the evaporative condensing component to perform low-temperature regeneration of the dehumidification wheel, thereby saving equipment manufacturing costs, reducing dehumidification costs and achieving the effect of energy conservation and emission reduction, and can also indirectly extend the service life of the equipment.

[0085] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An energy-saving rotary dehumidifier, characterized in that: It includes two evaporation condensation components and two dehumidification wheels; The low-temperature end of the evaporation-condensation assembly is arranged at the air inlet end of the processing zone of the dehumidification wheel; The high temperature end of the evaporation condensation component is arranged at the air inlet end of the regeneration zone of the dehumidification wheel; Fresh air passes through the processing area of ​​the dehumidification wheel to form a fresh air processing path; The regeneration wind passes through the regeneration area of ​​the dehumidification wheel to form a wheel regeneration path; The low-temperature end of the evaporative condensation component is arranged on the fresh air processing path; The high temperature end of the evaporation and condensation assembly is arranged on the regeneration path of the rotor; The evaporation and condensation assembly comprises a direct expansion heat pump evaporator, a compressor, a condenser and a throttle valve which are connected in sequence and form a circulation loop; The direct expansion heat pump evaporator is arranged on the fresh air processing path; The direct expansion heat pump evaporator is arranged at the air inlet end of the processing area of ​​the dehumidification wheel; The evaporative condensation assembly also includes an air heat exchanger; Part of the fresh air passes through the condenser and the air heat exchanger in sequence to form a regeneration air supply path; The air heat exchanger is arranged on the regeneration path of the rotor; The air heat exchanger is arranged at the air inlet end of the regeneration zone of the dehumidification wheel; Along the fresh air flow direction, the fresh air processing path includes a fresh air valve, a primary filter, a first dehumidification wheel, a first air blower, a second filter, a second dehumidification wheel, a second air blower and an air supply valve arranged in sequence; A direct expansion heat pump evaporator of the evaporation-condensation assembly is arranged between the primary filter and the first dehumidification wheel; Another direct expansion heat pump evaporator of the evaporation-condensation assembly is arranged between the second air blower and the air supply valve.

2. The energy-saving rotary dehumidifier according to claim 1, characterized in that: Along the regeneration wind flow direction, the rotor regeneration path includes a first regeneration heater, a second regeneration heater and a regeneration fan which are arranged in sequence; The regeneration zone of the second dehumidification rotor is arranged between the first regeneration heater and the second regeneration heater; The regeneration zone of the first dehumidification wheel is arranged between the first regeneration heater and the air inlet end of the regeneration fan; An air heat exchanger of the evaporative condensing assembly is arranged at the air inlet end of the first regeneration heater; Another air heat exchanger of the evaporative condensing assembly is arranged at the air inlet end of the second regeneration heater.

Images