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

Abstract

The invention discloses a rotary dehumidifier cold and heat source coupling system, a rotary dehumidification system and a control method. A recovery heat pump comprises a recovery evaporation coil and a recovery condensation coil which form circulation and are arranged on a recovery evaporation tank and a recovery condensation tank respectively. The recovery evaporation tank is connected in series to the position where the low-temperature loop flows into the water machine evaporation tank through a heat recovery pipeline; according to the rotary dehumidifier cold and heat source coupling system, the rotary dehumidification system and the control method, part of heated low-temperature water firstly enters the recovery evaporation tank, heat of the heated low-temperature water is transferred to the high-temperature loop through the recovery heat pump, high-temperature water in the high-temperature loop enters the release evaporation tank, and the heat of the high-temperature water in the high-temperature loop is released through the release heat pump. And finally, high temperature is formed at the position where the condensing coil is released, regeneration air is heated, so that latent heat in low-temperature water cannot be wasted by the cooling tower, the work of the heat recovery part is closed, and the possibility of maintenance needs or abnormal work is low.

Description

Technical Field

[0001] The invention relates to the field of dehumidification wheels, and in particular to a rotary dehumidifier cold and heat source coupling system, a rotary dehumidification system and a control method. Background Art

[0002] The working mechanism of the dehumidification wheel mainly relies on the adsorption and desorption process. The structure of the wheel is mainly composed of porous adsorption materials, and its interior is divided into multiple sector-shaped areas, each of which is filled with a highly efficient desiccant, such as silica gel or molecular sieve. The choice of desiccant depends on the specific application environment and humidity requirements to ensure the best dehumidification effect. When the humid air flows through the adsorption area, the hygroscopic material absorbs the moisture in the air, thereby drying the air.

[0003] In the dehumidification process of the dehumidification wheel, in addition to reducing humidity through the wheel, surface coolers are also configured at multiple locations in the system. The surface cooler can not only cool the air, but also dehumidify it. In order to provide low-temperature water to the surface cooler, a water chiller must be configured for the rotary dehumidification system. Usually, in order to improve the working efficiency of the water chiller, a water-cooled chiller is often used; when a water-cooled chiller is used in conjunction with a cooling tower, it will result in greater energy loss. Summary of the invention

[0004] The main purpose of the present invention is to provide a rotary dehumidifier cold and heat source coupling system, a rotary dehumidification system and a control method, aiming to solve the problem of more energy waste during the operation of the surface cooler in the rotary dehumidifier.

[0005] In order to achieve the above object, the present invention provides a rotary dehumidifier cold and heat source coupling system, corresponding to the rotary dehumidification system, the rotary dehumidification system includes at least one surface cooler and at least one rotary wheel, and the rotary wheel is provided with a desorption zone, including:

[0006] A chiller, comprising a water machine heat pump, a water machine evaporation tank, a water machine condensation tank and a cooling tower, wherein the water machine heat pump comprises a water machine evaporation coil and a water machine condensation coil that form a cycle and are respectively arranged in the water machine evaporation tank and the water machine condensation tank;

[0007] A cooling circuit connects the cooling tower to the water machine condensation tank to form a circulation;

[0008] A low temperature circuit connects the surface cooler to the water machine evaporation tank to form a circulation;

[0009] A heat recovery unit, comprising a recovery heat pump, a recovery evaporation tank and a recovery condensation tank, wherein the recovery heat pump comprises a recovery evaporation coil and a recovery condensation coil which form a cycle and are respectively arranged in the recovery evaporation tank and the recovery condensation tank, and the recovery evaporation tank is connected in series to the position where the low-temperature circuit flows into the water machine evaporation tank through a heat recovery pipeline;

[0010] at least one release part, including a release heat pump and a release evaporation tank, wherein the release heat pump includes a release condensing coil disposed upstream of the desorption zone and a release evaporation coil disposed in the release evaporation tank in a cycle;

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

[0012] Furthermore, the rotary dehumidifier cold and heat source coupling system also 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 and the low-temperature circuit are connected in series or in parallel, and is located upstream of the heat recovery pipeline and downstream of the surface cooler on the low-temperature circuit.

[0013] Furthermore, the rotary dehumidifier cold and heat source coupling system also 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 and the heating pipeline are connected in series or in parallel.

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

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

[0016] Furthermore, the surface cooler is connected to the water machine evaporator tank, and a second regulating valve is provided corresponding to the surface cooler; the release part is connected to the recovery condenser tank, and a third regulating valve is provided on the high-temperature circuit corresponding to the release evaporator tank; the waste heat pipeline is connected to the low-temperature circuit, and a fourth regulating valve is provided on it.

[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 rotary dehumidifier cold and heat source coupling system, the rotary dehumidification system includes multiple surface coolers and multiple rotary wheels, and the rotary wheels are provided with adsorption areas and desorption areas.

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

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

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

[0022] 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 machine heat pump is increased;

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

[0024] Furthermore, the step S4 includes:

[0025] 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.

[0026] The rotary dehumidifier cold and heat source coupling system, rotary dehumidification system and control method provided by the present invention, the heated low-temperature water part first enters the recovery evaporator, 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 evaporator, and through the action of the release heat pump, finally forms a high temperature at the release condensing coil position, completes the heating of the regenerated 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 possibility of maintenance needs or abnormal work is low; the modularization degree is high, space is saved, it is conducive to construction, the operating cost is low, the return rate is high, the energy utilization rate is high, it is environmentally friendly, not affected by the environmental changes of the four seasons, automatically adapts to the heat source, the energy distribution is flexible and the system is more stable, and the energy saving rate reaches 40%. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of a rotary dehumidifier cold and hot source coupling system according to a first embodiment of the present invention;

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

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[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 will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said", "above", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the 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 groups thereof. It should be understood that when we refer to an element as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, the "connection" or "coupling" used herein may include wireless connection or wireless coupling. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0032] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as herein.

[0033] Reference Figures 1 to 2 In one embodiment of the present invention, a rotary dehumidifier cold and heat source coupling system corresponds to a rotary dehumidification system, wherein 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] The chiller 100 includes a water machine heat pump, a water machine evaporation tank 110, a water machine condensation tank 120 and a cooling tower 130, wherein the water machine heat pump includes a water machine evaporation coil 111 and a water machine condensation coil 121 that form a cycle and are respectively arranged in the water machine evaporation tank 110 and the water machine condensation tank 120;

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

[0036] The low temperature circuit 300 connects the surface cooler 011 to the water machine evaporation tank 110 to form a circulation;

[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 arranged in the recovery evaporation tank 410 and the recovery condensation tank 420. 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.

[0038] At least one release part 500, including a release heat pump and a release evaporation tank 510, wherein the release heat pump includes a release condensing coil 520 disposed upstream of the desorption zone 013 and a release evaporation coil 511 disposed in the release evaporation tank 510 and forming a cycle;

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

[0040] In the prior art, in order to improve the working efficiency of the chiller, water-cooled refrigerators are often used; when the water-cooled refrigerator is used in conjunction with a cooling tower, a large energy loss will result.

[0041] In the present invention, the rotary dehumidifier cold and heat source coupling system corresponds to the rotary dehumidification system setting. The rotary dehumidification system includes multiple surface coolers 011 and at least one rotary wheel 012. The rotary dehumidification system 010 may include multiple sets of rotary dehumidifiers, and multiple rotary wheels 012 may also be provided in a single set of rotary dehumidifiers. The rotary wheel 012 is provided with an adsorption area 014 and a desorption area 013. The operation of the rotary dehumidification system realizes the adsorption of moisture and some harmful substances in the airflow. While the surface cooler 011 cools the external airflow, the moisture in the airflow is condensed by the surface cooler 011 to a certain extent, which has a certain dehumidification effect. The adsorption area 014 on the rotary wheel 012 realizes deep adsorption of moisture and other harmful substances. At the position of the desorption area 013, the adsorption material is regenerated under the action of high temperature.

[0042] The chiller 100 includes a water machine heat pump, a water machine evaporation tank 110, a water machine condensation tank 120 and a cooling tower 130. The water machine heat pump includes a water machine evaporation coil 111 and a water machine condensation coil 121 that form a cycle and are respectively arranged in the water machine evaporation tank 110 and the water machine condensation tank 120. The water machine evaporation coil 111 and the water machine condensation coil 121 are respectively the evaporator function and the condenser function in the heat pump. The water machine evaporation coil 111 in the water machine evaporation tank 110 performs heat exchange with the external fluid, and the water machine condensation coil 121 in the water machine condensation tank 120 performs heat exchange with the external fluid. The water machine evaporation coil 111 and the water machine condensation coil 121 form a cycle, and components such as an expansion valve and a compressor are arranged on the cycle. The heat transfer can be realized through the operation of the water machine heat pump. The other specific details of the matching water machine evaporation coil 111 and the water machine condensation coil 121 are not the focus here, but can refer to various technical solutions in the prior art.

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

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

[0045] 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 arranged in the recovery evaporation tank 410 and the recovery condensation tank 420. The recovery evaporation coil 411 and the recovery condensation coil 421 are respectively the evaporator function and the condenser function in the heat pump. The recovery evaporation coil 411 in the recovery evaporation tank 410 performs heat exchange with the external fluid, and the recovery condensation coil 421 in the recovery condensation tank 420 performs heat exchange with the 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 arranged on the cycle. The heat transfer can be realized through the operation of the recovery heat pump. The other specific details of the specific matching recovery evaporation coil 411 and the recovery condensation coil 421 are not the focus here, but 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 the heat recovery pipeline 430, so that 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. The heat recovery pipeline 430 forms two access points on the low-temperature circuit 300, and a check valve or other types of valve structures can be set between the above two access points to ensure the normal operation of the entire system.

[0046] At least one release part 500 includes a release heat pump and a release evaporation tank 510, wherein the release heat pump includes a release condensation coil 520 and a release evaporation coil 511 disposed in the release evaporation tank 510, which form a cycle. The release evaporation coil 511 performs heat exchange 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 disposed on the cycle. Heat transfer can be achieved through the operation of the release heat pump. Other specific details of the specific matching release evaporation coil 511 and the release condensation coil 520 are not the focus here, but 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] In the process of work,

[0049] A delivery pump structure may 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 has completed the dehumidification effect and has been heated in the surface cooler 011 enters the recovery evaporation tank 410 of the heat recovery part 400 through the heat recovery pipeline 430, and the other part enters the water machine evaporation tank 110.

[0050] The first part of low-temperature water in the low-temperature loop 300 is in the recovery evaporator 410, and the heat in the heated low-temperature water is transferred to the high-temperature loop 600 by the recovery heat pump; the high-temperature water in the high-temperature loop 600 enters the release evaporator 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 regeneration air.

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

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

[0053] In summary, the heated low-temperature water first enters the recovery evaporator 410, and its heat is transferred to the high-temperature loop 600 by the recovery heat pump. The high-temperature water in the high-temperature loop 600 enters the release evaporator 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 unit 400 is closed, and the possibility of maintenance needs or abnormal work is low; the modularization degree is high, space is saved, construction is convenient, the operating cost is low, the return rate is high, the energy utilization rate is high, it is environmentally friendly, not affected by seasonal environmental changes, automatically adapts to the heat source, the energy distribution is flexible, and the system is more stable, and the energy saving rate reaches 40%.

[0054] Reference Figure 2 In one embodiment, the rotary dehumidifier cold and heat source coupling system also includes a waste heat recovery device 700 corresponding to the regeneration output end of the rotary dehumidification system 010, and the waste heat recovery device 700 is connected to the water machine evaporation tank 110 through a waste heat pipeline 710, wherein the waste heat pipeline 710 and the low-temperature circuit 300 are connected in series or in parallel, and are located upstream of the heat recovery pipeline 430 and downstream of the surface cooler 011 on the low-temperature circuit 300.

[0055] As the wheel continues to rotate, the area that has absorbed moisture will enter the desorption area. Under the action of the hot air generated by the heater, the moisture in the hygroscopic material is evaporated, thereby restoring its hygroscopic properties. The regeneration process of the hygroscopic material is also accompanied by a large energy consumption. In this embodiment, a waste heat recovery device 700 is connected to the low-temperature circuit 300 by adding a waste heat pipeline 710. The waste heat recovery device 700 is correspondingly arranged at the regeneration output end of the rotary dehumidification system 010, and then forms a heat exchange with the regenerated wind that will be discharged to the external environment. Finally, the heat of the regenerated wind is partially transferred to the heat recovery unit 400 through the low-temperature circuit 300, which greatly reduces the energy consumption of the entire rotary dehumidifier cold and heat source coupling system. The structure of the waste heat recovery device 700 is similar to that of a surface cooler, and the specific heat exchange shall prevail.

[0056] In a specific embodiment, the rotary dehumidification system 010 includes an air inlet channel 015, an air exhaust channel 016 and a plurality of the rotary wheels 012, the rotary wheel 012 is provided with an adsorption zone 014, the air inlet channel 015 sequentially passes through the plurality of the adsorption zones 014, the air exhaust channel 016 sequentially passes through the 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 channel 015, and the waste heat recovery device 700 is provided downstream of the plurality of the surface coolers 011.

[0057] In this embodiment, multiple coolers 011 and waste heat recovery devices 700 are connected in series, so the low-temperature water flowing out of the water machine evaporation tank 110 flows into the waste heat recovery device 700 through the low-temperature circuit 300 and then passes through multiple coolers 011 in sequence, and finally enters the heat recovery unit 400 through the heat recovery pipeline 430. The reverse upward sequence arrangement on the air inlet channel 015 allows the airflow to pass through multiple coolers 011 with increasing cooling effects in sequence when passing through the air inlet channel 015. In the above process, the fresh air drawn in gradually undergoes a dehumidification effect of increasing intensity, completing a thorough dehumidification effect. Since the regeneration air temperature at the location of the waste heat recovery device 700 is relatively high, at this time, although the cooling effect of the waste heat recovery device 700 is weaker than that of the cooler 011, it can also achieve a relatively strong heat exchange effect. In particular, the arrangement of connecting the surface cooler 011 and the waste heat recovery device 700 in series enables the control of the above multiple components to be carried out synchronously, and the above synchronous control always just adapts to the working requirements, avoiding the complexity of separate regulation.

[0058] Reference Figure 2In one embodiment, the rotary dehumidifier cold and heat source coupling system also includes a fresh air heater 800 corresponding to the fresh air output end of the rotary dehumidification system 010, and the fresh air heater 800 is connected to the recovery condensation tank 420 through a heating pipe 810, wherein the high temperature circuit 600 and the heating pipe 810 are connected in series or in parallel.

[0059] Considering the existence of the high temperature loop 600, the operation of the heat recovery unit 400 can produce hot water with a relatively high temperature (50 to 60 degrees), so in this embodiment, a fresh air heater 800 is added, and the fresh air heater 800 is arranged at the fresh air output end of the rotary dehumidification system 010. The fresh air output by the rotary dehumidification system 010 is heated to a certain extent by heat exchange at the position of the fresh air heater 800, and the buffer surface cooler 011 has a cooling effect on the airflow. The heating pipeline 810 connects the fresh air heater 800 to the recovery condensation tank 420. In addition to providing a basis for the operation of the release unit 500, the relatively high temperature hot water generated in the recovery condensation tank 420 by the heat recovery unit 400 can also heat the fresh air.

[0060] Reference Figure 2 In one embodiment, a hot water storage tank 900 is provided on the high temperature circuit 600 .

[0061] Since the work of the surface cooler 011 or the work intensity requirement of the chiller 100 has certain fluctuations in a large time span (different seasons) or a small time span (different time periods within the same day), it is necessary to make corresponding adjustments, including 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, in the restart interval of the recovery heat pump, the hot water in the hot water storage tank 900 provides a basis for the work of the release unit 500. The hot water storage tank 900 needs to be provided with corresponding insulation measures, and a corresponding heating device can also be provided. When the recovery heat pump is in a working interval, the working intensity is insufficient or fails, the cooperation of the heating device and the hot water storage tank 900 can ensure the work of the release unit 500.

[0062] Reference Figure 2 In one embodiment, the heat recovery pipeline 430 has two access points formed on the low-temperature circuit 300, and the low-temperature circuit 300 is provided with a first regulating valve 310 between the two access points.

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

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

[0065] In this embodiment, multiple coolers 011 are arranged in parallel, so the opening adjustment of each second regulating valve 320 can achieve the working adjustment of the corresponding cooler 011, and further achieve the working adjustment of the rotary dehumidification system 010. The release part 500 is connected to the recovery condensation tank 420, so the opening adjustment of each third regulating valve 610 can achieve the flow adjustment of the fluid entering the corresponding release evaporation tank 510, and further achieve the adjustment of the regeneration process. The waste heat recovery device 700 is connected to the low-temperature circuit 300 and is located upstream of the heat recovery pipeline 430. Through the opening adjustment 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 working flexibility of the cold and heat source coupling system of the entire rotary dehumidifier, and the efficiency and energy consumption can be better controlled. There is no limitation on the types of the second regulating valve 320 , the third regulating valve 610 and the fourth regulating valve 720 , as long as they can be adjusted. They can be either electrically controlled or manually controlled.

[0066] Reference 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 returned from the surface cooler 011 and the waste heat recovery device 700 is divided into two parts, entering the heat recovery unit 400 and the chiller 100, the proportion of the above two parts of fluid is adjusted by adjusting the fifth regulating valve 431, providing a basis for the efficient operation of the entire system. The specific type of the fifth regulating valve 431 is not limited, and it can be an electronically controlled type or a manual type based on the ability to achieve adjustment.

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

[0069] In this embodiment, by adding a rotary dehumidifier cold and heat source coupling system to the rotary dehumidification system 010, the rotary dehumidification system 010 has low operating costs, high return rate, high energy utilization rate, environmental friendliness, no influence from seasonal environmental changes, automatic adaptation to heat sources, flexible energy distribution, stable system, and energy saving rate of 40%. In addition, the structure is highly centralized, which saves space and is convenient for construction.

[0070] The present invention also provides a control method, which is applied to the above-mentioned rotary dehumidification system, wherein 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, and the control method comprises:

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

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

[0073] 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 machine heat pump is increased;

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

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

[0076] In step S2, if the low-temperature water temperature data is lower than the first preset temperature, the operating power of the recovery heat pump is increased until the operating 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 means that the temperature of the low-temperature water is too high and the working effect of the surface cooler 011 is not good. Therefore, improving the working efficiency of the recovery heat pump can transfer the heat in the low-temperature water in the low-temperature loop 300 to a greater extent, thereby reducing the temperature of the low-temperature water in the low-temperature loop 300 without wasting the heat of 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 upper limit, and the low-temperature water temperature data is lower than the first preset temperature, the working power of the water heat pump is increased. When the working intensity of the recovery heat pump has reached the upper limit, in order to increase the temperature of the low-temperature water in the low-temperature loop 300, the working power of the water 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 operating power of the recovery heat pump is increased until the operating power of the recovery heat pump reaches the set upper limit. When the operating power of the recovery heat pump is increased, the temperature of the high temperature water in the high temperature loop 600 is increased, and then the temperature of the regeneration air at the last 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, and the step S4 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 activated 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 activated.

[0082] In this embodiment, the hot water storage tank 900 can store heat. When the hot water storage tank 900 is introduced, the temperature rise reaction speed of the high temperature water in the high temperature circuit 600 is poor. A bypass is set 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. When the bypass is closed, the hot water storage tank 900 is enabled. The above bypass work is implemented by adjusting the specific valve structure.

[0083] In one embodiment, the step S4 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, the problem of poor regeneration air temperature at the condensing coil 520 is compensated by increasing the working power of the release heat pump.

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

[0087] 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, 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 hot water storage tank 900, and the problem of poor regeneration air temperature at the condensing coil 520 is compensated by the operation of the heating device.

[0089] In summary, the rotary dehumidifier cold and heat source coupling system, rotary dehumidification system and control method provided by the present invention, the heated low-temperature water part first enters the recovery evaporator, 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 evaporator, and through the action of the release heat pump, finally forms a high temperature at the release condensing coil position, completes the heating of the regenerated 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 possibility of maintenance needs or abnormal work is low; the modularization degree is high, space is saved, it is conducive to construction, the operating cost is low, the return rate is high, the energy utilization rate is high, it is environmentally friendly, not affected by the environmental changes of the four seasons, automatically adapts to the heat source, the energy distribution is flexible and the system is more stable, and the energy saving rate reaches 40%.

[0090] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A rotary dehumidifier cold and heat source coupling system, corresponding to a rotary dehumidification system, the rotary dehumidification system comprises at least one surface cooler and at least one rotary wheel, the rotary wheel is provided with a desorption zone, characterized in that: include: A chiller, comprising a water machine heat pump, a water machine evaporation tank, a water machine condensation tank and a cooling tower, wherein the water machine heat pump comprises a water machine evaporation coil and a water machine condensation coil that form a cycle and are respectively arranged in the water machine evaporation tank and the water machine condensation tank; A cooling circuit connects the cooling tower to the water machine condensation tank to form a circulation; A low temperature circuit connects the surface cooler to the water machine evaporation tank to form a circulation; A heat recovery unit, comprising a recovery heat pump, a recovery evaporation tank and a recovery condensation tank, wherein the recovery heat pump comprises a recovery evaporation coil and a recovery condensation coil which form a cycle and are respectively arranged in the recovery evaporation tank and the recovery condensation tank, and the recovery evaporation tank is connected in series to the position where the low-temperature circuit flows into the water machine evaporation tank through a heat recovery pipeline; at least one release part, including a release heat pump and a release evaporation tank, wherein the release heat pump includes a release condensing coil disposed upstream of the desorption zone and a release evaporation coil disposed in the release evaporation tank in a cycle; A high temperature loop connects the release evaporation tank to the recovery condensation tank to form a cycle.

2. The rotary dehumidifier cold and heat source coupling system according to claim 1, characterized in that: The rotary dehumidifier cold and heat source coupling system also 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 and the low-temperature circuit are connected in series or in parallel, and is located upstream of the heat recovery pipeline and downstream of the surface cooler on the low-temperature circuit.

3. The rotary dehumidifier cold and heat source coupling system according to claim 2, characterized in that: The rotary dehumidifier cold and heat source coupling system also 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 and the heating pipeline are connected in series or in parallel.

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

5. The rotary dehumidifier cold and heat source coupling system according to claim 4, characterized in that: The heat recovery pipeline forms two access points on the low-temperature circuit, and the low-temperature circuit is provided with a first regulating valve between the two access points.

6. The rotary dehumidifier cold and heat source coupling system according to claim 4, characterized in that: The surface cooler is connected to the water machine evaporator tank, and a second regulating valve is provided corresponding to the surface cooler; the release part is connected to the recovery condenser tank, and a third regulating valve is provided on the high-temperature circuit corresponding to the release evaporator tank; the waste heat pipeline is connected to the low-temperature circuit, and a fourth regulating valve is provided on it.

7. The rotary dehumidifier cold and heat source coupling system according to claim 4, characterized in that: The heat recovery pipeline is provided with a fifth regulating valve.

8. A rotary dehumidification system, characterized in that: The rotary dehumidifier cold and heat source coupling system comprises the rotary dehumidifier according to any one of claims 1 to 7, characterized in that the rotary dehumidification system comprises a plurality of surface coolers and a plurality of rotary wheels, and an adsorption zone and a desorption zone are arranged on the rotary wheels.

9. A control method, applied to the rotary dehumidification system of claim 8, wherein a first temperature sensor is provided corresponding to the low temperature circuit, and a second temperature sensor is provided corresponding to the release condensing coil, wherein: The control method comprises: S1. Obtain low-temperature water temperature data sent by a first temperature sensor, and obtain hot air temperature data sent by a second temperature sensor; S2. If the low-temperature water temperature data is lower than the first preset temperature, the operating power of the recovery heat pump is increased until the operating power of the recovery heat pump reaches the set upper limit; 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 machine heat pump is increased; S4. If the hot air temperature data is lower than the second preset temperature, the operating power of the recovery heat pump is increased until the operating power of the recovery heat pump reaches the set upper limit.

10. The control method according to claim 9, characterized in that: The step of S4 then 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, the working power of the release heat pump is increased.

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