Condensation heat recovery type low-temperature regeneration rotating wheel dehumidification unit

Abstract

The utility model relates to the technical field of air conditioner dehumidification equipment, in particular to a condensation heat recovery type low-temperature regeneration rotary wheel dehumidification unit, which is characterized in that a rotary wheel dehumidification front function section is arranged in a rotary wheel dehumidification front function section box body, and a surface air cooler I is arranged on the rotary wheel dehumidification front function section; a rotating wheel dehumidification treatment section is arranged in the rotating wheel dehumidification treatment section box body, a rotating wheel dehumidification regeneration section is arranged in the rotating wheel dehumidification regeneration section box body, the same dehumidification rotating wheel is installed in the rotating wheel dehumidification treatment section and the rotating wheel dehumidification regeneration section, and the rotating wheel dehumidification regeneration section is further provided with a condensation heat recovery device. A recooling treatment functional section is arranged in the rotating wheel dehumidification rear functional section box body, and a surface air cooler II is arranged on the recooling treatment functional section; regenerated air is heated by recycling condensation heat of an external cold source refrigeration compressor, a regenerated air heating device of a traditional rotating wheel dehumidification system is completely replaced, and energy consumption of a rotating wheel dehumidification regeneration section is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning dehumidification equipment, in particular to a condensation heat recovery type low-temperature regeneration rotary dehumidification unit. Background Art

[0002] Rotary dehumidifiers are widely used in low-humidity environments in industrial and civil buildings. The dehumidification principle of rotary dehumidifiers is to use silica gel coated on the rotor to physically adsorb moisture in the air onto porous synthetic silica gel, and then heat and vaporize the water vapor adsorbed on the silica gel pores in the rotor regeneration area to form high-temperature and high-humidity air at the inlet of the AC heat exchanger. Then, when passing through the heat exchanger that has been cooled by the indoor cold and humid air, condensed water is discharged due to the difference in dew point.

[0003] Rotary dehumidifiers are widely used in most areas of my country, especially in archives, libraries, laboratories, computer rooms, Chinese medicine warehouses, hospital CT departments, factory storage rooms and other environments that require a certain degree of dryness.

[0004] Although the rotary dehumidifier can obtain relatively low-humidity air and has a significant dehumidification effect, the regeneration area of ​​the rotary wheel requires high-temperature air for regeneration. The heat source used to heat the regeneration air is often steam or electric heating, which consumes a lot of energy. Dehumidification is generally accompanied by refrigeration. The host using compression refrigeration has a large amount of compressor condensation heat, which is originally to be discharged. If it can be used as a regeneration heat source in the dehumidifier, it can not only save heating energy consumption, but also improve the energy efficiency of the refrigeration host, killing two birds with one stone.

[0005] Therefore, it is necessary to design a condensation heat recovery type low-temperature regenerative rotary dehumidification unit to solve the problem that the existing units need a supporting heating system and high energy consumption during dehumidification work. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a condensation heat recovery type low-temperature regenerative rotary dehumidification unit.

[0007] The technical solution adopted by the utility model to solve the technical problem is: a condensation heat recovery type low-temperature regeneration rotary dehumidifier unit, including a rotary dehumidification front functional section box, a rotary dehumidification treatment section box, a rotary dehumidification regeneration section box and a rotary dehumidification rear functional section box, wherein the rotary dehumidification front functional section is arranged in the rotary dehumidification front functional section box, and the rotary dehumidification front functional section is provided with a surface cooler 1;

[0008] A rotary dehumidification treatment section is arranged in the rotary dehumidification treatment section box, a rotary dehumidification regeneration section is arranged in the rotary dehumidification regeneration section box, the same dehumidification rotor is installed in the rotary dehumidification treatment section and the rotary dehumidification regeneration section, and the rotary dehumidification regeneration section is also provided with a condensation heat recovery device;

[0009] A re-cooling treatment functional section is arranged in the box of the rear functional section of the rotary dehumidification wheel, and a second surface cooler is arranged in the re-cooling treatment functional section.

[0010] Specifically, the front functional section of the rotary dehumidifier is provided with an air inlet of the unit, a filter is installed inside the air inlet of the unit, a surface cooler is installed behind the filter, and the surface cooler is connected to an external cold source through a pipeline.

[0011] Specifically, a part of the dehumidification wheel is arranged in the dehumidification treatment section of the wheel, and another part of the dehumidification wheel is arranged in the dehumidification regeneration section of the wheel.

[0012] Specifically, the condensing heat recovery device is provided with a condensing heat recovery coil, a main channel proportional integral regulating air valve and a bypass ventilation proportional integral regulating air valve. The main channel proportional integral regulating air valve is arranged at the rear of the condensing heat recovery coil, and the condensing heat recovery coil is connected to an external cold source through a condensing heat recovery pipeline.

[0013] Specifically, the rotary dehumidification regeneration section is also provided with a regeneration fan and a second filter. The second filter is installed on the inner side of the regeneration air inlet of the rotary dehumidification regeneration section box, and the regeneration fan is installed on the inner side of the regeneration air outlet of the rotary dehumidification regeneration section box.

[0014] Specifically, the re-cooling functional section is provided with a unit air outlet, a blower is installed at the unit air outlet, a second surface cooler is installed inside the blower, and the second surface cooler is connected to an external cold source through a cooling pipeline as needed.

[0015] Specifically, the regeneration air outlet is connected to the air inlet of the unit as required. For example, after the regeneration air outlet is connected to the air inlet of the unit, only one regeneration fan and one air supply fan are installed.

[0016] Specifically, the surface cooler 1, the surface cooler 2 and the condensing heat recovery coil all adopt finned heat exchangers, and the working fluid in the finned heat exchanger is water and an aqueous solution or Freon.

[0017] Specifically, the dehumidification wheel is one of a polymer dehumidification wheel, a silica gel dehumidification wheel, a lithium chloride dehumidification wheel, an activated silica gel dehumidification wheel, a molecular sieve dehumidification wheel and an organic synthetic material dehumidification wheel.

[0018] The utility model has the following beneficial effects:

[0019] The condensation heat recovery low-temperature regenerative rotary dehumidifier unit designed by the utility model does not need a separate regeneration air heating system. It recovers the condensation heat of the cold source as the regeneration heat source, and sets a main channel proportional integral regulating air valve and a bypass air proportional integral regulating air valve in the regeneration air channel of the unit. The air volume is adjusted according to the temperature of the regeneration air to achieve regeneration air temperature control and ensure the stability of dehumidification. It completely replaces the regeneration air heating device of the traditional rotary dehumidification system and greatly reduces the energy consumption of the regeneration section of the rotary dehumidification.

[0020] The condensation heat recovery low-temperature regenerative rotary dehumidifier unit designed by the utility model uses the condensation heat of the refrigeration host as the regeneration air heat source free of charge, and the regeneration air temperature does not need to be too high, and the high-temperature heating device can be completely eliminated, which saves more than 50% energy compared with the existing units with the same dehumidification capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a condensation heat recovery type low-temperature regenerative rotary dehumidification unit.

[0022] In the figure: 1-rotary dehumidification front functional section box; 2-rotary dehumidification treatment section box; 3-rotary dehumidification regeneration section box; 4-rotary dehumidification rear functional section box; 5-surface cooler one; 6-filter one; 7-dehumidification wheel; 8-condensation heat recovery coil; 9-main channel proportional integral regulating air valve; 10-bypass ventilation proportional integral regulating air valve; 11-regeneration fan; 12-filter two; 13-surface cooler two; 14-air supply fan; 15-cooling pipeline; 16-condensation heat recovery pipeline; 17-external cold source. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] like Figure 1As shown, a condensation heat recovery type low-temperature regenerative rotary dehumidifier unit includes a rotary dehumidification front functional section box 1, a rotary dehumidification treatment section box 2, a rotary dehumidification regeneration section box 3 and a rotary dehumidification rear functional section box 4. The rotary dehumidification front functional section is arranged in the rotary dehumidification front functional section box 1, and the rotary dehumidification front functional section is provided with a surface cooler 5 and a filter 6; the rotary dehumidification treatment section is arranged in the rotary dehumidification treatment section box 2, and the rotary dehumidification regeneration section is arranged in the rotary dehumidification regeneration section box 3. The same dehumidification wheel 7 is installed in the rotary dehumidification treatment section and the rotary dehumidification regeneration section, and the rotary dehumidification regeneration section is also provided with a condensation heat recovery device, a regeneration fan 11 and a filter 12; the re-cooling treatment functional section is arranged in the rotary dehumidification rear functional section box 4, and the re-cooling treatment functional section is provided with a surface cooler 13 and a blower 14.

[0026] Embodiment 2: The working principle of the condensation heat recovery type low-temperature regeneration rotary dehumidification unit adopting the structural form of embodiment 1.

[0027] A condensation heat recovery type low-temperature regenerative rotary dehumidifier unit, the functional section before the rotary dehumidification is generally provided with a filter 6 and a surface cooler 5 in sequence, respectively filtering the air and precooling the dehumidified air; one end of the dehumidification rotary wheel 7 is provided in the rotary dehumidification treatment section, and the other end is provided in the rotary dehumidification regeneration section; the regeneration fan 11, the filter 2 12 and the condensation heat recovery device are respectively provided in the rotary dehumidification regeneration section; the condensation heat recovery device is composed of a condensation heat recovery pipeline 16, a main channel proportional integral regulating air valve 9 and a bypass air proportional integral regulating air valve 10, and the air before entering the rotary regeneration section is purified by the filter 2 12 in sequence and then passes through the condensation heat recovery pipeline 16, To achieve heating; the main channel proportional integral regulating air valve 9 and the bypass air proportional integral regulating air valve 10 adjust the air volume according to the temperature of the regenerated air; the functional section box 4 after the rotary dehumidification (re-cooling treatment functional section) is generally provided with a surface cooler 2 13 to adjust the temperature of the air after the rotary dehumidification; the surface cooler 1 5 in the functional section before the rotary dehumidification and the surface cooler 2 13 in the re-cooling treatment functional section can use the same external cold source 17, or can be provided separately; the utility model recovers the condensation heat of the external cold source refrigeration compressor to heat the regenerated air, completely replacing the regeneration air heating device of the traditional rotary dehumidification system, and greatly reducing the energy consumption of the rotary dehumidification regeneration section.

[0028] It should be noted that, in addition to the rotary dehumidification treatment section, air filtration, pre-cooling, temperature control (re-cooling) and other functions can be configured as required. The rotary dehumidification regeneration section is equipped with a condensation heat recovery device, and there is no need to configure a separate heat source to heat the regeneration air.

[0029] It should be noted that one end of the dehumidification wheel 7 is arranged in the rotary dehumidification treatment section, and the other end is arranged in the rotary dehumidification regeneration section. The dehumidification wheel 7 is rotated by its own driving device. The dehumidification wheel 7 rotates from the rotary dehumidification treatment section to the rotary dehumidification regeneration section, and then from the rotary dehumidification regeneration section to the rotary dehumidification treatment section. The continuously circulating dehumidification wheel 7 realizes heat exchange between the airflows in two different working conditions, namely, through the rotary dehumidification treatment section and through the rotary dehumidification regeneration section. The dehumidification wheel 7 in the rotary dehumidification regeneration section exchanges heat with the high-temperature dry air to dry the dehumidification wheel 7; the dehumidification wheel 7 in the rotary dehumidification treatment section exchanges heat with the low-temperature humid air treated by the pre-cooling fin heat exchanger (surface cooler 5), absorbs water vapor in the air, and dehumidifies the air.

[0030] In this embodiment, the condensation heat recovery device is composed of a condensation heat recovery coil 16, a main channel proportional integral regulating air valve 9 and a bypass air proportional integral regulating air valve 10. The air before entering the rotor regeneration section is purified by filter 2 12 in turn and then passes through the condensation heat recovery coil 16 to achieve temperature increase. The main channel proportional integral regulating air valve 9 and the bypass air proportional integral regulating air valve 10 adjust the air volume according to the temperature of the regenerated air.

[0031] It should be noted that the condensation heat recovery device is responsible for dehumidifying and heating the air entering the rotary dehumidification regeneration section; the air entering the rotary dehumidification regeneration section is heated to the required temperature through the condensation heat recovery coil 16, and then enters the reheat end of the rotary wheel after becoming high-temperature dry air. The regeneration fan 11 is responsible for providing power for the distribution of the regeneration air.

[0032] In this embodiment, a pre-cooling fin heat exchanger (surface cooler 5) is provided inside the dehumidification front functional section box 1. It should be noted that the air entering the dehumidification wheel 7 is pre-cooled by providing the pre-cooling fin heat exchanger.

[0033] In the present embodiment, a re-cooling fin heat exchanger (surface cooler 2 13) is provided inside the re-cooling functional section. It should be noted that the air leaving the dehumidification wheel 7 is re-cooled by providing the re-cooling fin heat exchanger (surface cooler 2 13); and various state treatments of the air are achieved by providing the functional sections such as filtration, pre-cooling, temperature adjustment, and humidification in the pre-dehumidification functional section box 1 and the post-dehumidification functional section box 4 of the dehumidification wheel.

[0034] In this embodiment, the surface cooler 1 5 in the pre-dehumidification functional section of the rotary dehumidifier and the surface cooler 2 13 in the re-cooling functional section can use the same cold source or can be separately arranged;

[0035] In this embodiment, the internal space of the rotary dehumidifier front functional section box 1 is the rotary dehumidifier front functional section; the rotary dehumidifier front functional section is provided with a pre-cooling fin heat exchanger, and the working medium in the fin heat exchanger can be water, aqueous solution, or Freon.

[0036] In this embodiment, the internal space of the rotary dehumidification rear functional section box 4 is the rotary dehumidification rear functional section; the rotary dehumidification rear functional section is provided with a re-cooling fin heat exchanger, and the working medium in the fin heat exchanger can be water, an aqueous solution, or freon.

[0037] In the present embodiment, the condensation heat recovery coil is a finned heat exchanger, and the working fluid in the finned heat exchanger can be water, an aqueous solution, or freon.

[0038] In the present embodiment, the pre-cooling finned heat exchanger is connected to an external cold source 17 via a pipeline; and the re-cooling finned heat exchanger is connected to an external cold source 17 via a cooling pipeline 15.

[0039] In this embodiment, the condensation heat recovery coil 16 is connected to the compressor condensation heat recovery pipeline connected to an external cold source through a pipeline. The condensation heat can be recovered by directly recovering the condensation heat of Freon or by converting the condensation heat into a high-temperature water medium.

[0040] In this embodiment, the driving motors of the regeneration fan 11 and the air supply fan 14 are AC motors or brushless DC EC motors.

[0041] In this embodiment, the regeneration air can be outdoor fresh air or indoor return air;

[0042] Embodiment 3: adopts the same structure and working principle as Embodiment 1 and Embodiment 2, wherein an embodiment of a combined box is provided.

[0043] In this embodiment, the outlet of the regeneration air is connected to the inlet of the treatment air to form a single-channel dehumidifier. The air supply fan 14 and the regeneration fan 11 can also be combined into one fan.

[0044] In this embodiment, the surface cooler, evaporator and condenser are all finned heat exchangers.

[0045] In this embodiment, the dehumidification wheel 7 is one of a polymer dehumidification wheel, a silica gel dehumidification wheel, a lithium chloride dehumidification wheel, an activated silica gel dehumidification wheel, a molecular sieve dehumidification wheel and an organic synthetic material dehumidification wheel.

[0046] Compared with the prior art, the utility model sets a condensation heat recovery device in the rotary dehumidification regeneration section box 3 to heat the rotary dehumidification regeneration air, and uses the condensation heat of the external cold source compressor to heat the regeneration air, completely replacing the regeneration air heating device of the traditional rotary dehumidification system, greatly reducing the energy consumption of the rotary dehumidification regeneration self-circulation, and the system is not affected by the outdoor climate and is more stable; it saves more than 50% energy than the existing units with the same dehumidification capacity.

[0047] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0048] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A condensation heat recovery type low-temperature regenerative rotary dehumidification unit, characterized in that: It includes a rotary dehumidification front functional section box, a rotary dehumidification treatment section box, a rotary dehumidification regeneration section box and a rotary dehumidification rear functional section box, wherein the rotary dehumidification front functional section is arranged in the rotary dehumidification front functional section box, and the rotary dehumidification front functional section is provided with a surface cooler 1; A rotary dehumidification treatment section is arranged in the rotary dehumidification treatment section box, a rotary dehumidification regeneration section is arranged in the rotary dehumidification regeneration section box, the same dehumidification rotor is installed in the rotary dehumidification treatment section and the rotary dehumidification regeneration section, and the rotary dehumidification regeneration section is also provided with a condensation heat recovery device; A re-cooling treatment functional section is arranged in the box of the rear functional section of the rotary dehumidification wheel, and a second surface cooler is arranged in the re-cooling treatment functional section.

2. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1 is characterized in that: The front functional section of the rotary dehumidifier is provided with an air inlet of the unit, a filter is installed inside the air inlet of the unit, a surface cooler is installed behind the filter, and the surface cooler is connected to an external cold source through a pipeline.

3. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1 is characterized in that: A part of the dehumidification wheel is arranged in the dehumidification treatment section of the wheel, and another part of the dehumidification wheel is arranged in the dehumidification regeneration section of the wheel.

4. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1 is characterized in that: The condensing heat recovery device is provided with a condensing heat recovery coil, a main channel proportional integral regulating air valve and a bypass ventilation proportional integral regulating air valve. The main channel proportional integral regulating air valve is arranged at the rear of the condensing heat recovery coil, and the condensing heat recovery coil is connected to an external cold source through a condensing heat recovery pipeline.

5. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1 is characterized in that: The rotary dehumidification regeneration section is also provided with a regeneration fan and a second filter. The second filter is installed on the inner side of the regeneration air inlet of the rotary dehumidification regeneration section box, and the regeneration fan is installed on the inner side of the regeneration air outlet of the rotary dehumidification regeneration section box.

6. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1, characterized in that: The re-cooling functional section is provided with a unit air outlet, a blower is installed at the unit air outlet, a second surface cooler is installed inside the blower, and the second surface cooler is connected to an external cold source through a cooling pipeline as needed.

7. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 5, characterized in that: The regeneration air outlet is connected with the air inlet of the unit as required. For example, after the regeneration air outlet is connected with the air inlet of the unit, only one regeneration fan and one air supply fan are installed.

8. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 4, characterized in that: The surface cooler 1, the surface cooler 2 and the condensation heat recovery coil all adopt finned heat exchangers, and the working fluid in the finned heat exchanger is water and aqueous solution or Freon.

9. The condensation heat recovery type low-temperature regeneration rotary dehumidifier unit according to claim 1, characterized in that: The dehumidification wheel is one of a high molecular polymer dehumidification wheel, a silica gel dehumidification wheel, a lithium chloride dehumidification wheel, an active silica gel dehumidification wheel, a molecular sieve dehumidification wheel and an organic synthetic material dehumidification wheel.

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