Rotary dehumidifier cold and heat source coupling system, rotary dehumidification system and control method

Abstract

The present application discloses a cold and heat source coupling system for a rotary dehumidifier, a rotary dehumidification system and a control method. The recovery heat pump includes a recovery evaporation coil and a recovery condensation coil that form a cycle and are respectively arranged in a recovery evaporation tank and a recovery condensation tank. The recovery evaporation tank is connected in series to the position where the low-temperature loop flows into the water chiller evaporation tank through a heat recovery pipeline; for the cold and heat source coupling system, the rotary dehumidification system and the control method provided by the present invention, part of the heated low-temperature water first enters the recovery evaporation tank, and its heat is transferred by the recovery heat pump to the high-temperature loop. The high-temperature water in the high-temperature loop enters the release evaporation tank, and through the action of the release heat pump, finally a high temperature is formed at the position of the release condensation coil to complete the heating of the regeneration air, so that the latent heat in the low-temperature water will not be wasted by the cooling tower, and the operation of the above heat recovery part is closed, and the need for maintenance or the possibility of abnormal operation is relatively low.

Description

Technical Field

[0001] The present invention relates to the field of dehumidification wheels, and particularly to a cold and heat source coupling system, a dehumidification wheel system and a control method for a dehumidification wheel machine. Background Art

[0002] The working mechanism of a dehumidification wheel mainly relies on the adsorption and desorption processes. The structure of the wheel is mainly composed of a porous adsorption material, which is internally divided into multiple fan-shaped areas, and each area is filled with an efficient moisture absorbent, such as silica gel or molecular sieve. The selection of the moisture absorbent depends on the specific application environment and humidity requirements to ensure the optimal dehumidification effect. When humid air flows through the adsorption area, the moisture absorbent will absorb the moisture in the air, thereby drying the air.

[0003] During the dehumidification process of the dehumidification wheel, in addition to reducing the humidity through the wheel, surface coolers are also configured at multiple positions in the system. The surface cooler can not only cool the air but also play a role in dehumidification. In order to provide low-temperature water to the surface cooler, a chiller must be configured for the dehumidification wheel system. Usually, in order to improve the working efficiency of the chiller, a water-cooled chiller is mostly used; when the water-cooled chiller is used in conjunction with a cooling tower, it will cause relatively large energy losses. Summary of the Invention

[0004] The main object of the present invention is to provide a cold and heat source coupling system, a dehumidification wheel system and a control method for a dehumidification wheel machine, aiming to solve the problem of relatively large energy waste during the operation of the surface cooler in the dehumidification wheel machine.

[0005] To achieve the above object, the present invention provides a cold and heat source coupling system for a dehumidification wheel machine. Corresponding to the dehumidification wheel system, the dehumidification wheel system includes at least one surface cooler and at least one dehumidification wheel. The dehumidification wheel is provided with a desorption area, and the system includes:

[0006] A chiller, including a water chiller heat pump, a water chiller evaporation tank, a water chiller condensation tank and a cooling tower. The water chiller heat pump includes a water chiller evaporation coil and a water chiller condensation coil that form a cycle and are respectively arranged in the water chiller evaporation tank and the water chiller condensation tank;

[0007] A cooling circuit that connects the cooling tower to the water chiller condensation tank to form a cycle;

[0008] A low-temperature circuit that connects the surface cooler to the water chiller evaporation tank to form a cycle;

[0009] A heat recovery unit, including a recovery heat pump, a recovery evaporation tank and a recovery condensation tank. The recovery heat pump includes a recovery evaporation coil and a recovery condensation coil that form a cycle and are respectively arranged in the recovery evaporation tank and the recovery condensation tank. The recovery evaporation tank is connected in series to the position where the low-temperature circuit flows into the water chiller evaporation tank through a heat recovery pipeline;

[0010] At least one release unit, including a release heat pump and a release evaporation tank, wherein the release heat pump includes a release condensation coil disposed in a circulating manner corresponding to the upstream of the desorption zone and a release evaporation coil disposed in the release evaporation tank;

[0011] A high-temperature circuit connects the release evaporation tank to the recovery condensation tank to form a cycle.

[0012] Furthermore, the cold and heat source coupling system of the rotary dehumidifier further includes a waste heat recovery device corresponding to the regeneration output end of the rotary dehumidification system, and the waste heat recovery device is connected to the water machine evaporation tank through a waste heat pipeline. Wherein, the waste heat pipeline is connected in series or in parallel with the low-temperature circuit, and is located upstream of the heat recovery pipeline and downstream of the surface cooler on the low-temperature circuit.

[0013] Furthermore, the cold and heat source coupling system of the rotary dehumidifier further includes a fresh air heater corresponding to the fresh air output end of the rotary dehumidification system, and the fresh air heater is connected to the recovery condensation tank through a heating pipeline. Wherein, the high-temperature circuit is connected in series or in parallel with the heating pipeline.

[0014] Furthermore, a hot water storage tank is provided on the high-temperature circuit.

[0015] Furthermore, the heat recovery pipeline forms two access points on the low-temperature circuit, and a first regulating valve is provided on the low-temperature circuit between the two access points.

[0016] Furthermore, the surface cooler is connected in parallel to the water machine evaporation tank, and a second regulating valve is provided corresponding to the surface cooler; the release unit is connected in parallel to the recovery condensation tank, and a third regulating valve is provided corresponding to the release evaporation tank on the high-temperature circuit; the waste heat pipeline is connected in parallel to the low-temperature circuit, and a fourth regulating valve is provided thereon.

[0017] Furthermore, a fifth regulating valve is provided on the heat recovery pipeline.

[0018] The present invention also provides a rotary dehumidification system, including the above-mentioned cold and heat source coupling system of the rotary dehumidifier. The rotary dehumidification system includes a plurality of surface coolers and a plurality of rotors, and an adsorption zone and a desorption zone are provided on the rotors.

[0019] The present invention also provides a control method, which is applied to the above-mentioned rotary dehumidification system. A first temperature sensor is provided corresponding to the low-temperature circuit, and a second temperature sensor is provided corresponding to the release condensation coil. The control method includes:

[0020] S1. Obtain the low-temperature water temperature data sent by the first temperature sensor and obtain the hot air temperature data sent by the second temperature sensor;

[0021] S2. If the temperature data of the low-temperature water is lower than the first preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit.

[0022] S3. If the temperature data of the low-temperature water is lower than the first preset temperature after the working power of the recovery heat pump reaches the set upper limit, increase the working power of the water-source heat pump.

[0023] S4. If the hot air temperature data is lower than the second preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit.

[0024] Further, after the step of S4 includes:

[0025] If the hot air temperature data is lower than the second preset temperature after the working power of the recovery heat pump reaches the set upper limit, increase the working power of the release heat pump.

[0026] The wheel dehumidifier cold and heat source coupling system, the wheel dehumidification system and the control method provided by the present invention, the heated low-temperature water first enters the recovery evaporation tank, and its heat is transferred by the recovery heat pump to the high-temperature circuit. The high-temperature water in the high-temperature circuit enters the release evaporation tank, and through the action of the release heat pump, finally forms a high temperature at the position of the release condensing coil to complete the heating of the regeneration air, so that the latent heat in the low-temperature water will not be wasted by the cooling tower, and the work of the above heat recovery part is closed, and the need for maintenance or the possibility of abnormal work is relatively low; high modularity, space saving, construction-friendly, low operating cost, high return rate, high energy utilization rate, environmentally friendly, not affected by seasonal environmental changes, automatically adapting to heat sources, flexible energy distribution and more stable system, and the energy saving rate reaches 40%. Description of the Drawings

[0027] Figure 1 is a schematic diagram of the wheel dehumidifier cold and heat source coupling system according to the first embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of the wheel dehumidifier cold and heat source coupling system according to the second embodiment of the present invention.

[0029] The realization, functional characteristics and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed Embodiments

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the", "above-mentioned" and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present invention means the presence of the described features, integers, steps, operations, elements, units, modules and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components and / or their groups. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there may also be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more of the associated listed items.

[0032] Those skilled in the art can understand that, unless otherwise defined, all terms used herein (including technical terms and scientific terms) have the same meaning as the general understanding of those of ordinary skill in the art to which the present invention pertains. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless specifically defined as here.

[0033] Referring to Figures 1 to 2 , in an embodiment of the present invention, a cold and heat source coupling system for a rotary dehumidifier, corresponding to a rotary dehumidification system, the rotary dehumidification system 010 includes at least one surface cooler 011 and at least one rotary wheel 012, and a desorption zone 013 is provided on the rotary wheel 012, including:

[0034] A chiller 100, including a water chiller heat pump, a water chiller evaporation tank 110, a water chiller condensation tank 120 and a cooling tower 130, the water chiller heat pump includes a water chiller evaporation coil 111 and a water chiller condensation coil 121 that form a cycle and are respectively provided in the water chiller evaporation tank 110 and the water chiller condensation tank 120;

[0035] A cooling circuit 200 connects the cooling tower 130 to the water chiller condensation tank 120 to form a cycle;

[0036] A low-temperature circuit 300 connects the surface cooler 011 to the water chiller evaporation tank 110 to form a cycle;

[0037] The heat recovery unit 400 includes a recovery heat pump, a recovery evaporation tank 410, and a recovery condensation tank 420. The recovery heat pump includes a recovery evaporation coil 411 and a recovery condensation coil 421 that form a cycle and are respectively disposed in the recovery evaporation tank 410 and the recovery condensation tank 420. The recovery evaporation tank 410 is connected in series to the low-temperature circuit 300 through a heat recovery pipeline 430 to the position where the water chiller evaporation tank 110 is flowed into.

[0038] At least one release unit 500 includes a release heat pump and a release evaporation tank 510. The release heat pump includes a release condensation coil 520 that forms a cycle and is correspondingly disposed upstream of the desorption zone 013 and a release evaporation coil 511 disposed in the release evaporation tank 510.

[0039] The high-temperature circuit 600 connects the release evaporation tank 510 to the recovery condensation tank 420 to form a cycle.

[0040] In the prior art field, in order to improve the working efficiency of a water chiller, a water-cooled chiller is mostly used; when the water-cooled chiller is used in cooperation with a cooling tower, it will cause relatively large energy loss.

[0041] In the present invention, the wheel dehumidifier cold and heat source coupling system is correspondingly arranged for the wheel dehumidification system. The wheel dehumidification system includes a plurality of surface coolers 011 and at least one wheel 012. The wheel dehumidification system 010 may include multiple sets of wheel dehumidifiers, and multiple wheels 012 may also be arranged in a single set of wheel dehumidifiers. An adsorption zone 014 and a desorption zone 013 are arranged on the wheel 012. Through the operation of the wheel dehumidification system, the adsorption of moisture and some harmful substances in the air flow is realized. While the surface cooler 011 cools the outside air flow, at the same time, the moisture in the air flow is condensed to a certain extent by the surface cooler 011 to achieve a certain dehumidification effect, and the adsorption zone 014 on the wheel 012 realizes the deep adsorption of moisture and other harmful substances. At the position of the desorption zone 013, the adsorption material is regenerated under the action of high temperature.

[0042] The chiller 100 includes a water chiller heat pump, a water chiller evaporation tank 110, a water chiller condensation tank 120, and a cooling tower 130. The water chiller heat pump includes a water chiller evaporation coil 111 and a water chiller condensation coil 121 that form a cycle and are respectively disposed in the water chiller evaporation tank 110 and the water chiller condensation tank 120. The water chiller evaporation coil 111 and the water chiller condensation coil 121 respectively function as an evaporator and a condenser in the heat pump. In the water chiller evaporation tank 110, the water chiller evaporation coil 111 exchanges heat with an external fluid, and in the water chiller condensation tank 120, the water chiller condensation coil 121 exchanges heat with an external fluid. The water chiller evaporation coil 111 and the water chiller condensation coil 121 form a cycle, and components such as an expansion valve and a compressor are provided on this cycle. Through the operation of the water chiller heat pump, heat transfer can be achieved. Specific details of other structures specifically supporting the water chiller evaporation coil 111 and the water chiller condensation coil 121 are not the focus here and can refer to various technical solutions in the prior art.

[0043] The cooling circuit 200 connects the cooling tower 130 to the water chiller condensation tank 120 to form a cycle. A water chiller condensation coil 121 is disposed in the water chiller condensation tank 120. During the operation of the water chiller heat pump, the water chiller condensation coil 121 releases heat, and the fluid in the cooling circuit 200 transports the heat released by the water chiller condensation coil 121 to the cooling tower 130 to complete dissipation.

[0044] The low-temperature circuit 300 connects the surface cooler 011 to the water chiller evaporation tank 110 to form a cycle. A water chiller evaporation coil 111 is disposed in the water chiller evaporation tank 110. During the operation of the water chiller heat pump, the water chiller evaporation coil 111 absorbs heat, and the temperature of the fluid in the low-temperature circuit 300 decreases, providing a basis for the operation of the surface cooler 011.

[0045] The heat recovery section 400 includes a recovery heat pump, a recovery evaporation tank 410, and a recovery condensation tank 420. The recovery heat pump includes a recovery evaporation coil 411 and a recovery condensation coil 421 that form a cycle and are respectively disposed in the recovery evaporation tank 410 and the recovery condensation tank 420. The recovery evaporation coil 411 and the recovery condensation coil 421 respectively function as an evaporator and a condenser in the heat pump. In the recovery evaporation tank 410, the recovery evaporation coil 411 exchanges heat with an external fluid, and in the recovery condensation tank 420, the recovery condensation coil 421 exchanges heat with an external fluid. The recovery evaporation coil 411 and the recovery condensation coil 421 form a cycle, and components such as an expansion valve and a compressor are provided on this cycle. Through the operation of the recovery heat pump, heat transfer can be achieved. The specific details of other structures specifically supporting the recovery evaporation coil 411 and the recovery condensation coil 421 are not the focus here and can refer to various technical solutions in the prior art. The recovery evaporation tank 410 is connected in series to the position where the low-temperature circuit 300 flows into the water machine evaporation tank 110 through a heat recovery pipeline 430. Therefore, the low-temperature circuit 300 can at least partially flow into the recovery evaporation tank 410 when flowing into the water machine evaporation tank 110. Two access points are formed on the low-temperature circuit 300 for the heat recovery pipeline 430, and a check valve or other types of valve structures can be provided between the above two access points to ensure the normal operation of the entire system.

[0046] At least one release section 500 includes a release heat pump and a release evaporation tank 510. The release heat pump includes a release condensation coil 520 that forms a cycle and is correspondingly disposed upstream of the desorption zone 013, and a release evaporation coil 511 disposed in the release evaporation tank 510. The release evaporation coil 511 exchanges heat with an external fluid in the release evaporation tank 510. The release evaporation coil 511 and the release condensation coil 520 form a cycle, and components such as an expansion valve and a compressor are provided on this cycle. Through the operation of the release heat pump, heat transfer can be achieved. The specific details of other structures specifically supporting the release evaporation coil 511 and the release condensation coil 520 are not the focus here and can refer to various technical solutions in the prior art.

[0047] The high-temperature circuit 600 connects the release evaporation tank 510 to the recovery condensation tank 420 to form a cycle.

[0048] During the working process,

[0049] A delivery pump structure can be provided on the low-temperature circuit 300 to complete the low-temperature water circulation between the surface cooler 011 and the water machine evaporation tank 110; part of the low-temperature water that is heated after dehumidification in the surface cooler 011 enters the recovery evaporation tank 410 of the heat recovery section 400 through the heat recovery pipeline 430, and the other part enters the water machine evaporation tank 110.

[0050] The first part of the low-temperature water in the low-temperature circuit 300 has the heat in the heated low-temperature water transferred by the recovery heat pump to the high-temperature circuit 600 in the recovery evaporation tank 410; the high-temperature water in the high-temperature circuit 600 enters the release evaporation tank 510, and through the action of the release heat pump, finally forms a high temperature at the position of the release condensing coil 520, completing the heating of the regenerated air.

[0051] The second part of the medium-low temperature water in the low-temperature circuit 300 has the heat in the heated low-temperature water transferred by the water chiller heat pump to the cooling circuit 200 in the water chiller evaporation tank 110, and finally dissipated through the cooling tower 130.

[0052] A transport pump structure can be provided on the cooling circuit 200 and the high-temperature circuit 600 to complete the circulation of the fluid. A transport pump structure or a valve structure can be provided on the heat recovery pipeline 430 to adjust the proportion of the low-temperature water entering the recovery evaporation tank 410 and the water chiller evaporation tank 110.

[0053] In summary, the heated part of the low-temperature water first enters the recovery evaporation tank 410, and its heat is transferred by the recovery heat pump to the high-temperature circuit 600. The high-temperature water in the high-temperature circuit 600 enters the release evaporation tank 510, and through the action of the release heat pump, finally forms a high temperature at the position of the release condensing coil 520, completing the heating of the regenerated air, so that the latent heat in the low-temperature water will not be wasted by the cooling tower 130, and the work of the above heat recovery section 400 is closed, with a low need for maintenance or a low possibility of abnormal operation; high modularity, space-saving, construction-friendly, low operating cost, high return rate, high energy utilization rate, environmentally friendly, not affected by seasonal environmental changes, automatically adapting to heat sources, flexible energy distribution and a more stable system, with an energy-saving rate reaching 40%.

[0054] Refer to Figure 2 , in an embodiment, the runner dehumidifier cold and heat source coupling system further includes a waste heat recovery device 700 corresponding to the regeneration output end of the runner dehumidification system 010. The waste heat recovery device 700 is connected to the water chiller evaporation tank 110 through a waste heat pipeline 710. Among them, the waste heat pipeline 710 is connected in series or in parallel with the low-temperature circuit 300, and is located upstream of the heat recovery pipeline 430 and downstream of the surface cooler 011 on the low-temperature circuit 300.

[0055] As the runner continues to rotate, the area that has adsorbed moisture will enter the desorption zone. Under the action of the hot air generated by the heater, the moisture in the moisture-absorbing material is evaporated, thereby restoring its moisture-absorbing performance. The regeneration process of the moisture-absorbing material is also accompanied by relatively high energy consumption. In this embodiment, a waste heat pipeline 710 is added to the low-temperature circuit 300 to connect a waste heat recovery device 700. The waste heat recovery device 700 is correspondingly arranged at the regeneration output end of the rotary wheel dehumidification system 010, and then forms a heat exchange with the regeneration air that will be discharged to the external environment. Finally, part of the heat of the regeneration air is transferred to the heat recovery section 400 through the low-temperature circuit 300, greatly reducing the energy consumption of the entire cold and heat source coupling system of the rotary wheel dehumidifier. The structure of the waste heat recovery device 700 is similar to that of a surface cooler, specifically based on the ability to carry out heat exchange.

[0056] In a specific embodiment, the rotary wheel dehumidification system 010 includes an air inlet passage 015, an air outlet passage 016, and a plurality of the runners 012. An adsorption zone 014 is arranged on the runner 012. The air inlet passage 015 is sequentially arranged through a plurality of the adsorption zones 014. The air outlet passage 016 is sequentially arranged through a plurality of the desorption zones 013. A plurality of the surface coolers 011 are sequentially connected in series on the low-temperature circuit 300 and are sequentially arranged in the reverse direction of the air inlet passage 015. The waste heat recovery device 700 is arranged downstream of a plurality of the surface coolers 011.

[0057] In this embodiment, a plurality of surface coolers 011 and the waste heat recovery device 700 are connected in series. Then, the low-temperature water flowing out of the evaporation tank 110 of the water machine passes through a plurality of surface coolers 011 sequentially through the low-temperature circuit 300 and then flows into the waste heat recovery device 700, and finally enters the heat recovery section 400 through the heat recovery pipeline 430. The characteristic of being sequentially arranged in the reverse direction on the air inlet passage 015 enables the air flow to sequentially pass through a plurality of surface coolers 011 with increasing cooling effects when passing through the air inlet passage 015. In the above process, the drawn fresh air is gradually dehumidified with increasing intensity to achieve a complete dehumidification effect. Since the temperature of the regeneration air at the position of the waste heat recovery device 700 is relatively high, although the cooling effect of the waste heat recovery device 700 is weaker than that of the surface cooler 011 at this time, a relatively strong heat exchange effect can still be achieved. In particular, the above arrangement of connecting the surface coolers 011 and the waste heat recovery device 700 in series enables the control of the above-mentioned multiple components to be carried out synchronously, and the above-mentioned synchronous control always exactly adapts to the working requirements, avoiding the complex situation of separate regulation.

[0058] Refer to Figure 2, in one embodiment, the cold and heat source coupling system of the rotary wheel dehumidifier further includes a fresh air heater 800 corresponding to the fresh air output end of the rotary wheel dehumidification system 010. The fresh air heater 800 is connected to the recovery condensation tank 420 through a heating pipeline 810. Among them, the high-temperature circuit 600 and the heating pipeline 810 are connected in series or in parallel.

[0059] Considering the existence of the high-temperature circuit 600, the operation of the heat recovery unit 400 can generate hot water at a relatively high temperature (50 to 60 degrees). Then, in this embodiment, a fresh air heater 800 is added. The fresh air heater 800 is arranged at the fresh air output end of the rotary wheel dehumidification system 010. The fresh air output by the rotary wheel dehumidification system 010 undergoes heat exchange at the position of the fresh air heater 800 and is heated to a certain extent, buffering the cooling effect of the buffer surface cooler 011 on the air flow. The heating pipeline 810 connects the fresh air heater 800 to the recovery condensation tank 420. The relatively high-temperature hot water generated by the heat recovery unit 400 in the recovery condensation tank 420 can not only provide a basis for the operation of the release unit 500, but also heat the fresh air.

[0060] Refer to Figure 2 , in one embodiment, a hot water storage tank 900 is arranged on the high-temperature circuit 600.

[0061] Due to the operation of the surface cooler 011, that is, the working intensity requirements of the chiller 100 have certain fluctuations over a large time span (different seasons) or a small time span (different time periods within the same day), corresponding adjustments need to be made. The adjustment content includes the flow rate of the fluid and the power of the heat pump. In this embodiment, through the buffering effect of the hot water storage tank 900, it can provide a basis for the shutdown and startup of the recovery heat pump in the heat recovery unit 400. For example, during the restart interval of the recovery heat pump, the hot water in the hot water storage tank 900 provides a basis for the operation of the release unit 500. While the hot water storage tank 900 needs to be correspondingly provided with heat preservation measures, a heating device can also be correspondingly arranged. When the recovery heat pump is in a working interval, insufficient working intensity or fails, the coordinated operation of the heating device and the hot water storage tank 900 can ensure the operation of the release unit 500.

[0062] Refer to Figure 2 , in one embodiment, the heat recovery pipeline 430 forms two access points on the low-temperature circuit 300, and a first regulating valve 310 is arranged on the low-temperature circuit 300 between the two access points.

[0063] In this embodiment, the first regulating valve 310 can not only regulate the flow rate, but also function as a check valve, ensuring smooth operation while completing the work regulation. During the working process, when the first regulating valve 310 is fully closed, all the low-temperature water will preferentially enter the recovery evaporation tank 410 and then enter the chiller 100. The latent heat in the low-temperature water is transferred by the heat recovery section 400 to the greatest extent, and the surplus heat is buffered in the hot water storage tank 900.

[0064] Referring to Figure 2 , in one embodiment, the surface cooler 011 is connected in parallel to the water chiller evaporation tank 110, and a second regulating valve 320 is provided corresponding to each surface cooler 011; the release section 500 is connected in parallel to the recovery condensation tank 420, and a third regulating valve 610 is provided corresponding to each release evaporation tank 510 on the high-temperature circuit 600; the waste heat pipeline 710 is connected in parallel to the low-temperature circuit 300, and a fourth regulating valve 720 is provided thereon.

[0065] In this embodiment, multiple surface coolers 011 are arranged in parallel. Then, the opening adjustment of each second regulating valve 320 can realize the working adjustment of the corresponding surface cooler 011, and further realize the working adjustment of the rotary dehumidification system 010. The release section 500 is connected in parallel to the recovery condensation tank 420. Then, the opening adjustment of each third regulating valve 610 can realize the flow rate adjustment of the fluid entering the corresponding release evaporation tank 510, and further realize the adjustment of the regeneration process. The waste heat recovery device 700 is connected in parallel to the low-temperature circuit 300 and is located upstream of the heat recovery pipeline 430. By adjusting the opening of the fourth regulating valve 720, the working intensity of the waste heat recovery device 700 can be adjusted. The introduction of the second regulating valve 320, the third regulating valve 610, and the fourth regulating valve 720 greatly improves the flexibility of the operation of the entire rotary dehumidifier cold and heat source coupling system, and both the efficiency and energy consumption can be better controlled. Specifically, the types of the second regulating valve 320, the third regulating valve 610, and the fourth regulating valve 720 are not limited as long as they can achieve regulation, and they can be of the electric control type or the manual type.

[0066] Referring to Figure 2 , in one embodiment, a fifth regulating valve 431 is provided on the heat recovery pipeline 430.

[0067] In this embodiment, considering that the fluid returning from the surface cooler 011 and the waste heat recovery device 700 is divided into two parts, namely entering the heat recovery section 400 and the chiller 100, the ratio adjustment of the above two parts of the fluid can be realized through the adjustment of the fifth regulating valve 431, providing a basis for the efficient operation of the entire system. Specifically, the type of the fifth regulating valve 431 is not limited as long as it can achieve regulation, and it can be of the electric control type or the manual type.

[0068] The present invention also provides a rotary wheel dehumidification system, including the above-mentioned cold and heat source coupling system of the rotary wheel dehumidifier. The rotary wheel dehumidification system 010 includes a plurality of surface coolers 011 and a plurality of rotary wheels 012. An adsorption zone 014 and a desorption zone 013 are provided on the rotary wheel 012.

[0069] In this embodiment, by attaching the cold and heat source coupling system of the rotary wheel dehumidifier to the rotary wheel dehumidification system 010, the rotary wheel dehumidification system 010 has the advantages of low operating cost, high return rate, high energy utilization rate, environmental friendliness, being unaffected by seasonal environmental changes, automatically adapting to heat sources, flexible energy distribution, stable system, and an energy saving rate reaching 40%. Moreover, the structure is highly concentrated, saving space and facilitating construction.

[0070] The present invention also provides a control method, which is applied to the above-mentioned rotary wheel dehumidification system. A first temperature sensor is provided corresponding to the low-temperature circuit 300, and a second temperature sensor is provided corresponding to the release condensing coil 520. The control method includes:

[0071] S1. Obtain the low-temperature water temperature data sent by the first temperature sensor and obtain the hot air temperature data sent by the second temperature sensor;

[0072] S2. If the low-temperature water temperature data is lower than the first preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit;

[0073] S3. If the low-temperature water temperature data is lower than the first preset temperature after the working power of the recovery heat pump reaches the set upper limit, increase the working power of the water chiller heat pump;

[0074] S4. If the hot air temperature data is lower than the second preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit.

[0075] In this embodiment, in the step of S1, obtaining the low-temperature water temperature data sent by the first temperature sensor and obtaining the hot air temperature data sent by the second temperature sensor provide an indication for the operation of the entire rotary wheel dehumidification system.

[0076] In the step of S2, if the low-temperature water temperature data is lower than the first preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit. If the low-temperature water temperature data does not meet the first preset temperature, it indicates that the temperature of the low-temperature water is too high and the working effect of the surface cooler 011 is not good. Therefore, increasing the working efficiency of the recovery heat pump can transfer more heat in the low-temperature water in the low-temperature circuit 300, and thus reduce the temperature of the low-temperature water in the low-temperature circuit 300 without wasting the heat in the low-temperature water. It should be noted that the first preset temperature is not limited to a fixed value and can be a set value or a real-time calculated value.

[0077] In step S3, if the working power of the recovery heat pump reaches the set upper limit and the low-temperature water temperature data is lower than the first preset temperature, the working power of the water chiller heat pump is increased. When the working intensity of the recovery heat pump has reached the upper limit, in order to ensure the temperature of the low-temperature water in the low-temperature circuit 300, the working power of the water chiller heat pump is increased so that the working temperature meets the standard.

[0078] In step S4, if the hot air temperature data is lower than the second preset temperature, the working power of the recovery heat pump is increased until the working power of the recovery heat pump reaches the set upper limit. By increasing the working power of the recovery heat pump, the temperature of the high-temperature water in the high-temperature circuit 600 is increased, and then the temperature of the regenerated air at the final release condensing coil 520 is increased.

[0079] In a specific embodiment, a hot water storage tank 900 is provided on the high-temperature circuit 600, and a bypass is provided on the high-temperature circuit 600 corresponding to the hot water storage tank 900. After step S4, it includes:

[0080] If the working power of the recovery heat pump reaches the set upper limit and the hot air temperature data is lower than the second preset temperature, the bypass is enabled to bypass the hot water storage tank 900;

[0081] If the hot air temperature data is higher than the second preset temperature, the bypass is closed and the hot water storage tank 900 is enabled.

[0082] In this embodiment, the hot water storage tank 900 can store heat. When the introduction of the hot water storage tank 900 causes the temperature rise rate of the high-temperature water in the high-temperature circuit 600 to be poor. A bypass is provided on the high-temperature circuit 600 corresponding to the hot water storage tank 900. When the bypass is enabled, the hot water storage tank 900 is bypassed, and when the bypass is closed, the hot water storage tank 900 is enabled. The above bypass operation is realized by adjusting the specific valve structure.

[0083] In an embodiment, after step S4, it includes:

[0084] If the working power of the recovery heat pump reaches the set upper limit and the hot air temperature data is lower than the second preset temperature, the working power of the release heat pump is increased.

[0085] In this embodiment, by increasing the working power of the release heat pump, the problem of poor temperature of the regenerated air at the release condensing coil 520 is compensated.

[0086] In a specific embodiment, a heating device is provided in the hot water storage tank 900. After step S4, it includes:

[0087] If the working power of the recovery heat pump reaches the set upper limit and the hot air temperature data is lower than the second preset temperature, the heating device is started until the hot air temperature data is higher than the second preset temperature.

[0088] In this embodiment, a heating device is introduced into the heat storage water tank 900, and the operation of the heating device is used to make up for the problem of poor temperature of the regeneration air at the release condensation coil 520.

[0089] In summary, for the regenerative dehumidifier cold and heat source coupling system, the regenerative dehumidification system and the control method provided by the present invention, the partially heated low-temperature water first enters the recovery evaporation tank, and its heat is transferred to the high-temperature circuit by the recovery heat pump. The high-temperature water in the high-temperature circuit enters the release evaporation tank, and through the action of the release heat pump, a high temperature is finally formed at the position of the release condensation coil to complete the heating of the regeneration air. Therefore, the latent heat in the low-temperature water will not be wasted by the cooling tower, and the operation of the above heat recovery part is closed, so the need for maintenance or the possibility of abnormal operation is relatively low; it has a high degree of modularization, saves space, is conducive to construction, has a low operating cost, a high return rate, a high energy utilization rate, is environmentally friendly, is not affected by seasonal environmental changes, automatically adapts to heat sources, has flexible energy distribution and a more stable system, and the energy saving rate reaches 40%.

[0090] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A cold and heat source coupling system for a rotary dehumidifier, corresponding to a rotary dehumidification system, the rotary dehumidification system comprising at least one surface cooler and at least one rotary wheel, a desorption zone being provided on the rotary wheel, characterized in that, Comprising: A chiller, including a water chiller heat pump, a water chiller evaporation tank, a water chiller condensation tank and a cooling tower. The water chiller heat pump includes a water chiller evaporation coil and a water chiller condensation coil that form a cycle and are respectively arranged in the water chiller evaporation tank and the water chiller condensation tank; A cooling circuit that connects the cooling tower to the water chiller condensation tank to form a cycle; A low-temperature circuit that connects the surface cooler to the water chiller evaporation tank to form a cycle; A heat recovery section, including a recovery heat pump, a recovery evaporation tank and a recovery condensation tank. The recovery heat pump includes a recovery evaporation coil and a recovery condensation coil that form a cycle and are respectively arranged in the recovery evaporation tank and the recovery condensation tank. The recovery evaporation tank is connected in series to the low-temperature circuit at the position where it flows into the water chiller evaporation tank through a heat recovery pipeline; At least one release section, including a release heat pump and a release evaporation tank. The release heat pump includes a release condensation coil corresponding to the upstream of the desorption zone in a cycle and a release evaporation coil arranged in the release evaporation tank; A high-temperature circuit that connects the release evaporation tank to the recovery condensation tank to form a cycle.

2. The cold and heat source coupling system of the rotary dehumidifier according to claim 1, wherein The cold and heat source coupling system of the rotary dehumidifier further includes a waste heat recovery device corresponding to the regeneration output end of the rotary dehumidification system. The waste heat recovery device is connected to the water chiller evaporation tank through a waste heat pipeline. Among them, the waste heat pipeline is connected in series or in parallel with the low-temperature circuit, and is located upstream of the heat recovery pipeline and downstream of the surface cooler on the low-temperature circuit.

3. The cold and heat source coupling system of the rotary dehumidifier according to claim 2, wherein The cold and heat source coupling system of the rotary dehumidifier further includes a fresh air heater corresponding to the fresh air output end of the rotary dehumidification system. The fresh air heater is connected to the recovery condensation tank through a heating pipeline. Among them, the high-temperature circuit is connected in series or in parallel with the heating pipeline.

4. The cold and heat source coupling system of the rotary dehumidifier according to claim 3, characterized in that A hot water storage tank is arranged on the high-temperature circuit.

5. The cold and heat source coupling system of the rotary dehumidifier according to claim 4, characterized in that Two access points are formed on the low-temperature circuit by the heat recovery pipeline, and a first regulating valve is arranged between the two access points on the low-temperature circuit.

6. The wheel dehumidifier cold and heat source coupling system according to claim 4, wherein The surface cooler is connected in parallel to the water chiller evaporation tank, and a second regulating valve is arranged corresponding to the surface cooler; the release section is connected in parallel to the recovery condensation tank, and a third regulating valve is arranged corresponding to the release evaporation tank on the high-temperature circuit; the waste heat pipeline is connected in parallel to the low-temperature circuit, and a fourth regulating valve is arranged on it.

7. The cold and heat source coupling system of the rotary dehumidifier according to claim 4, characterized in that, A fifth regulating valve is arranged on the heat recovery pipeline.

8. A rotary dehumidification system, characterized in that, Including the cold and heat source coupling system of the rotary dehumidifier according to any one of claims 1 to 7, characterized in that the rotary dehumidification system includes a plurality of surface coolers and a plurality of rotors, and adsorption zones and desorption zones are arranged on the rotors.

9. A control method is applied to the rotary dehumidification system according to claim 8. A first temperature sensor is provided corresponding to the low-temperature circuit, and a second temperature sensor is provided corresponding to the release condensation coil. It is characterized in that The control method includes: S1. Obtain the low-temperature water temperature data sent by the first temperature sensor and obtain the hot air temperature data sent by the second temperature sensor; S2. If the low-temperature water temperature data is lower than the first preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit; S3. If the low-temperature water temperature data is lower than the first preset temperature after the working power of the recovery heat pump reaches the set upper limit, increase the working power of the water chiller heat pump; S4. If the hot air temperature data is lower than the second preset temperature, increase the working power of the recovery heat pump until the working power of the recovery heat pump reaches the set upper limit.

10. The control method according to claim 9, characterized in that, After the step of S4, it includes: If the working power of the recovery heat pump reaches the set upper limit and the hot air temperature data is lower than the second preset temperature, increase the working power of the release heat pump.

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