Water source heat pump type rotary dehumidifier

Abstract

The utility model discloses a water source heat pump type rotary dehumidifier, and belongs to the technical field of dehumidifiers. The water source heat pump type rotary dehumidifier comprises a heat production device, a heat exchanger, a compressor, a condenser and a dehumidification rotary wheel. The condenser is connected with the regeneration area of the dehumidification rotating wheel through a pipeline; the heat exchanger, the compressor and the condenser are connected through a first liquid path; and the heat production device is connected with the heat exchanger through a second liquid path. According to the water source heat pump type rotary dehumidifier, water source waste heat generated by a production workshop can be effectively utilized to regenerate the dehumidification rotary wheel used in cooperation with the water source heat pump type rotary dehumidifier, the effects of energy conservation and emission reduction are achieved, and high air temperature can be provided to keep the good dehumidification effect.

Description

Technical Field

[0001] This utility model belongs to the field of dehumidifier technology, specifically relating to a water source heat pump type rotary dehumidifier. Background Technology

[0002] The dehumidifying rotor is the core component of a rotary dehumidifier, and its operating efficiency and service life determine the dehumidifier's performance. The temperature of the regeneration air used for rotor regeneration significantly affects the regeneration effect of the dehumidifying rotor, further influencing its operating efficiency and service life. Within a certain range, without compromising the dehumidifying performance of the desiccant, higher temperatures result in higher dehumidification efficiency. Commonly used equipment for providing regeneration air includes electric heating devices, steam heating devices, gas heating devices, and waste heat recovery heating devices. Electric and steam heating devices can provide higher temperatures and cleaner regeneration air, but they consume more energy. Gas heating devices are more energy-efficient, but they produce polluting gases during combustion, which enter the regeneration zone of the dehumidifying rotor with the steam, affecting the rotor's regeneration and lifespan. Waste heat recovery heating devices offer good energy savings, but their heating capacity is insufficient, making it difficult to reach the temperatures required for medium-temperature regeneration (regeneration temperature controlled between 80℃ and 90℃). Utility Model Content

[0003] The technical problem to be solved by this utility model is: to provide a waste heat recovery rotary dehumidifier with a high regeneration temperature.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a water source heat pump type rotary dehumidifier, including a heat generation device, a heat exchanger, a compressor, a condenser and a dehumidification rotor;

[0005] The regeneration zone of the condenser and the dehumidifying impeller are connected by pipelines;

[0006] The heat exchanger, compressor, and condenser are connected via a first liquid circuit;

[0007] The heat-generating device and the heat exchanger are connected via a second liquid circuit.

[0008] Furthermore, it also includes fresh air filters and fresh air fans;

[0009] The fresh air filter and fresh air fan are sequentially installed before the condenser.

[0010] Furthermore, it also includes a hot air cabinet; the hot air cabinet includes a first space and a second space; the first space is equipped with a fresh air filter, a fresh air fan and a condenser; the second space is equipped with a heat exchanger and a compressor; the heat generation device is located outside the hot air cabinet.

[0011] Furthermore, the exhaust temperature of the hot air cabinet is greater than 85°C.

[0012] Furthermore, it also includes a dehumidification cabinet, which is equipped with a pre-filter, a front cooling unit and a dehumidification impeller in sequence; the regeneration zone of the dehumidification impeller is connected to the exhaust port of the hot air cabinet.

[0013] Furthermore, it also includes a rear surface cooler; the rear surface cooler is located at the air outlet end of the dehumidification rotor.

[0014] Furthermore, this includes the first and second new wind tunnels;

[0015] A regeneration zone consisting of a fresh air filter, a fresh air fan, a condenser, and a dehumidifier impeller is sequentially arranged along the first fresh air duct.

[0016] Along the second fresh air duct, there are sequentially arranged a pre-filter, a front surface cooler, a dehumidification impeller treatment area, and a rear surface cooler;

[0017] Furthermore, the heat-generating device is an air compressor.

[0018] Furthermore, it also includes a heat storage device for storing the wastewater generated by the heat-generating device.

[0019] Furthermore, the heat exchanger is a plate heat exchanger.

[0020] The beneficial effects of this utility model are as follows: The water source heat pump type rotary dehumidifier provided by this utility model can effectively utilize the waste heat generated by the heat-generating devices in the production workshop, such as air compressors, to regenerate the dehumidifying rotary wheel used in conjunction with it, thereby achieving the effect of energy saving and emission reduction, reducing operating costs. In addition, the water source heat pump type rotary dehumidifier provided by this utility model can provide a higher (>85℃) air temperature to maintain a higher dehumidification efficiency and a better dehumidification effect of the rotary wheel, so that the rotary dehumidifier has a higher operating efficiency and a longer service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the water source heat pump type rotary dehumidifier of this utility model;

[0022] Label Explanation:

[0023] 1. Heat generating device; 2. Heat exchanger; 3. Compressor; 4. Condenser;

[0024] 5. Dehumidifying impeller; 51. Regeneration zone; 52. Processing zone;

[0025] 6. Fresh air filter; 7. Fresh air fan; 8. Regenerative exhaust fan; 9. Heating device. Detailed Implementation

[0026] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0027] Please refer to Figure 1 A water source heat pump type rotary dehumidifier includes a heat generation device 1, a heat exchanger 2, a compressor 3, a condenser 4, and a dehumidification rotor 5;

[0028] The regeneration zone 51 of the condenser 4 and the dehumidifier rotor 5 is connected by a pipeline;

[0029] Heat exchanger 2, compressor 3 and condenser 4 are connected through the first liquid circuit;

[0030] The heat generating device 1 and the heat exchanger 2 are connected through a second liquid circuit.

[0031] As can be seen from the above description, the beneficial effects of this utility model are as follows: The heat-generating device 1 can be any device or system capable of generating cooling water at a high temperature, such as cooling water discharged from an air compressor, refrigeration station, or steam coil. The hot water discharged from the heat-generating device 1 enters the heat exchanger 2 through the second liquid path, where it exchanges heat with the refrigerant in the first liquid path. The refrigerant absorbs heat in the heat exchanger 2, and then the compressor 3 compresses the low-temperature, low-pressure refrigerant into a high-temperature, high-pressure gas, which then releases heat in the condenser 4. Meanwhile, the fresh air, after being heated by the condenser 4, experiences a temperature increase (approximately 85~100℃) and a humidity decrease, before entering the regeneration zone 51 of the dehumidifier rotor 5 through pipelines, thus regenerating the rotor. Since the heat used for regeneration comes from the hot water discharged from the production system, no additional energy is required for rotor regeneration, significantly reducing the dehumidifier's operating energy consumption and achieving energy saving and emission reduction.

[0032] In one or more embodiments, the above-mentioned water source heat pump type rotary dehumidifier further includes a fresh air filter 6 and a fresh air fan 7; the fresh air filter 6 and the fresh air fan 7 are sequentially arranged before the condenser 4. That is, before the fresh air passes through the condenser 4, it first passes through the fresh air filter 6 through the action of the fresh air fan 7, thereby achieving the filtration of the fresh air and preventing impurities from being carried into the regeneration zone 51 of the dehumidification rotor 5 and affecting the performance of the dehumidification rotor 5.

[0033] In one or more embodiments, the aforementioned water source heat pump type rotary dehumidifier further includes a hot air cabinet; the hot air cabinet includes a first space and a second space; the first space is equipped with a fresh air filter 6, a fresh air fan 7, and a condenser 4; the second space is equipped with a heat exchanger 2 and a compressor 3; the heat generation device 1 is located outside the hot air cabinet. The hot air cabinet is used to integrate equipment for heating fresh air. It is independent of the dehumidifier itself and can be connected to the dehumidifier itself through air ducts. This structure also facilitates energy-saving retrofitting of dehumidifiers already in use, reducing the cost for enterprises to replace and purchase new equipment. The heat generation device is a cooling device that is already present on the production line, and there is no need to change its location or integrate it into the hot air cabinet or dehumidifier cabinet.

[0034] In one or more embodiments, the exhaust temperature of the hot air cabinet is greater than 85°C.

[0035] In one or more embodiments, the second liquid path includes an outlet water path and a return water path. The cooling water generated by the heat-generating device passes through the outlet water path and then through a heat exchanger to cool down before returning to the heat-generating device through the return water path for further cooling, thereby achieving the reuse of cooling water and reducing the waste of heat and water resources.

[0036] In one or more embodiments, an electric water valve, a temperature sensor, and a flow meter are sequentially arranged along the water flow direction on the outlet flow path. This is used to control the flow of cooling water and monitor its temperature and flow rate, which can help in calculating heat recovery and enabling numerical control.

[0037] In one or more embodiments, a temperature sensor and a check valve are sequentially installed along the water flow direction on the return water path. These are used to monitor the temperature of the cooling water after heat recovery and to prevent backflow.

[0038] As described above, when the required temperature of the air supplied through the condenser changes, i.e., when the heat release demand on the condensing side changes, the opening of the electric water valve can be adjusted by monitoring the temperature and flow rate of the low-temperature hot water on the evaporating side, thereby achieving the purpose of adjusting the heat exchange on the evaporating side.

[0039] In one or more embodiments, the above-mentioned water source heat pump type rotary dehumidifier further includes a dehumidification cabinet, which contains a pre-filter, a pre-cooler, and a dehumidification rotor 5 arranged in sequence; the regeneration zone 51 of the dehumidification rotor 5 is connected to the exhaust port of the hot air cabinet. The dehumidification cabinet is the dehumidifier itself, and its function is to deliver the dehumidified and temperature-controlled fresh air into the space to be temperature and humidity controlled.

[0040] In one or more embodiments, the above-described water source heat pump rotary dehumidifier further includes a post-cooler; the post-cooler is disposed at the air outlet end of the dehumidification rotor 5. The post-cooler facilitates further temperature adjustment of the dehumidified fresh air.

[0041] In one or more embodiments, the above-described water source heat pump type rotary dehumidifier further includes a heating device 9, which is used to further heat the fresh air that has been heated by the condenser, thereby increasing its temperature for the regeneration of the dehumidification rotor. When the temperature of the fresh air passing through the condenser is sufficiently high, the heating device may not need to be turned on.

[0042] In one or more embodiments, the above-described water source heat pump type rotary dehumidifier includes a first fresh air duct and a second fresh air duct;

[0043] A regeneration zone 51 is provided along the first fresh air duct, consisting of a fresh air filter 6, a fresh air fan 7, a condenser 4, and a dehumidifying impeller 5.

[0044] Along the second fresh air duct, there are sequentially arranged a pre-filter, a front surface cooler, a dehumidifying impeller 5, a treatment zone 52, and a rear surface cooler;

[0045] To facilitate gas flow, the dehumidifier cabinet also includes at least one fan, such as a regeneration exhaust fan 8, to exhaust the high-humidity air after regeneration of the dehumidifier impeller 5. This is a standard feature, and the specific location and number of fans can be adjusted according to the factory conditions. The fresh air from the first fresh air duct ultimately forms regeneration air for the regeneration of the dehumidifier impeller 5, while the fresh air from the second fresh air duct, after temperature and dehumidification, is sent to the space where temperature and humidity need to be controlled.

[0046] In one or more embodiments, the heat-generating device 1 is an air compressor.

[0047] In one or more embodiments, heat exchanger 2 is a plate heat exchanger. Plate heat exchangers have high heat transfer efficiency, small size, and are easy to install, while also being suitable for heat exchange between fluids.

[0048] Please refer to Figure 1 Embodiment 1 of this utility model is as follows:

[0049] A water source heat pump type rotary dehumidifier includes a hot air cabinet, a dehumidification cabinet, a compressor, a throttling valve, a plate heat exchanger, and an air compressor;

[0050] The hot air cabinet includes a first space and a second space; the first space contains a fresh air filter, a first axial flow fan, and a condenser in sequence; the second space contains a heat exchanger and a compressor.

[0051] The dehumidifier cabinet is equipped with a pre-filter, a front surface cooler, a dehumidifier impeller, a second axial flow fan, and a rear surface cooler in sequence.

[0052] The air outlet of the condenser and the air inlet of the regeneration zone of the dehumidifier are connected by a pipeline;

[0053] The heat exchanger, compressor, expansion valve, and condenser are connected via the first liquid circuit;

[0054] The air compressor and heat exchanger are connected via a second fluid circuit;

[0055] The first stream of fresh air passes through a fresh air filter, then is heated by a condenser, and enters the regeneration zone of the dehumidifying impeller. After the impeller is regenerated, the air is discharged outdoors.

[0056] The second fresh air intake passes through a pre-filter, a front cooling unit, a dehumidifier impeller, a second axial flow fan, and a rear cooling unit in sequence, achieving temperature regulation and dehumidification before being delivered to the designated space.

[0057] The working principle of this invention is as follows: Hot water at approximately 42°C discharged from the air compressor enters the plate heat exchanger, where it exchanges heat with the refrigerant in another liquid path. The refrigerant absorbs heat and vaporizes into gas. The vaporized refrigerant gas then enters the compressor's suction end through the evaporator outlet. The compressor compresses the low-temperature, low-pressure refrigerant gas into a high-temperature, high-pressure gas. This compressed high-temperature, high-pressure refrigerant gas is discharged through the compressor's exhaust end and enters the condenser, where it exchanges heat with the surrounding air. The refrigerant gradually cools and liquefies in the condenser, releasing a large amount of heat. Simultaneously, fresh air at 35°C and 60% RH passes through the condenser, where it is heated and dehumidified to approximately 97°C and 0.6% RH. This regenerates the dehumidifier impeller before being discharged outdoors. The outlet temperature of the hot water after heat exchange is approximately 37°C.

[0058] Please refer to Figure 1 Embodiment two of this utility model is as follows:

[0059] Based on Embodiment 1, a heating device is also included, which is installed on the pipeline between the air outlet of the condenser and the air inlet of the regeneration zone of the dehumidifying impeller;

[0060] The second liquid circuit includes an outlet flow path and a return flow path; the outlet flow path is equipped with an electric water valve, a temperature sensor and a flow meter in sequence along the water flow direction; the return flow path is equipped with a temperature sensor and a check valve in sequence along the water flow direction.

[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water source heat pump type rotary dehumidifier, characterized by, The system comprises a heat generating device, a heat exchanger, a compressor, a condenser and a dehumidification runner; The regeneration area of the condenser and the dehumidification runner are connected by a pipeline; The heat exchanger, the compressor and the condenser are connected by a first liquid circuit; The heat generating device and the heat exchanger are connected by a second liquid circuit.

2. The water-source heat pump rotary dehumidifier according to claim 1, wherein The system further comprises a fresh air filter and a fresh air fan; The fresh air filter and the fresh air fan are arranged in sequence before the condenser.

3. The water-source heat pump rotary dehumidifier according to claim 1, wherein The system further comprises a hot air cabinet; the hot air cabinet comprises a first space and a second space; the first space is provided with the fresh air filter, the fresh air fan and the condenser; the second space is provided with the heat exchanger and the compressor.

4. The water-source heat pump rotary dehumidifier according to claim 3, wherein The temperature of the exhaust air of the hot air cabinet is greater than 85℃.

5. The water-source heat pump rotary dehumidifier according to claim 1, wherein The second liquid circuit comprises a water outlet flow path and a water return flow path.

6. The water-source heat pump rotary dehumidifier according to claim 5, wherein The water outlet flow path is provided with an electric water valve, a temperature sensor and a flow meter in sequence along the water flow direction.

7. The water-source heat pump rotary dehumidifier according to claim 5, wherein The water return flow path is provided with a temperature sensor and a check valve in sequence along the water flow direction.

8. The water-source heat pump rotary dehumidifier according to claim 1, wherein The system further comprises a dehumidification cabinet; the dehumidification cabinet is provided with an initial filter, a front air cooler and a dehumidification runner in sequence; the regeneration area of the dehumidification runner is in communication with the exhaust air of the hot air cabinet.

9. The water-source heat pump rotary dehumidifier according to claim 8, wherein The system further comprises a rear air cooler; the rear air cooler is arranged at the air outlet end of the dehumidification runner.

10. The water-source heat pump rotary dehumidifier according to claim 9, wherein The system comprises a first fresh air flow path and a second fresh air flow path; The first fresh air flow path is provided with the fresh air filter, the fresh air fan, the condenser and the regeneration area of the dehumidification runner in sequence; The second fresh air flow path is provided with the initial filter, the front air cooler, the processing area of the dehumidification runner and the rear air cooler in sequence.

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