WO2021237998A1 - 一种循环干燥装置、消防水带干燥系统及方法 - Google Patents

一种循环干燥装置、消防水带干燥系统及方法 Download PDF

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WO2021237998A1
WO2021237998A1 PCT/CN2020/117752 CN2020117752W WO2021237998A1 WO 2021237998 A1 WO2021237998 A1 WO 2021237998A1 CN 2020117752 W CN2020117752 W CN 2020117752W WO 2021237998 A1 WO2021237998 A1 WO 2021237998A1
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pipeline
evaporator
drying
fire hose
pipe
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English (en)
French (fr)
Inventor
刘龙
黄晨
唐荣琪
于昊
李永振
张成龙
吴琦
邢秀强
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Qingdao University of Technology
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Qingdao University of Technology
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C33/00—Hose accessories
    • A62C33/02—Apparatus for cleaning or drying hoses

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  • the present disclosure relates to the field of drying equipment, in particular to a circulating drying device, a fire hose drying system and method.
  • Fire hose is an important equipment tool. After the fire hose is used, there will be a lot of moisture and stains on the surface. If the fire hose cannot be cleaned and dried in time, the humid environment will cause the hose to rot and reduce water. The pressure-bearing capacity of the belt shortens the service life of the hose.
  • there is currently no special cleaning and drying equipment for fire hoses which is difficult to meet the comprehensive cleaning and drying of fire hoses. Dealing with the needs.
  • the purpose of the present disclosure is to provide a circulating drying device, a fire-fighting hose drying system and a method in view of the defects of the prior art.
  • a circulating air supply structure is formed through a pipe in cooperation with a heat pump system, and an evaporator in the pipe and a pipe outside the pipe are configured. The evaporator obtains heat from the outside of the pipe when it is started to achieve the effect of rapid start to a stable circulation state and reduce energy consumption.
  • the first objective of the present disclosure is to provide a circulating drying device, which adopts the following technical solutions:
  • the pipes are provided with an evaporator, condenser and fan in sequence from the first end to the second end. At least one evaporator is arranged inside the pipe and one outside the pipe.
  • the condenser cooperates with compression
  • the engine, expansion valve and all evaporators form a heat pump system.
  • the evaporators inside and outside the pipeline are connected to the condenser through different expansion valves. The evaporator inside the pipeline and the evaporator outside the pipeline do not operate at the same time.
  • the pipeline is a curved pipeline
  • the first section is from the first end to the evaporator in the pipeline
  • the second section is from the evaporator to the condenser in the pipeline
  • a cross is formed between the first section and the second section.
  • the cross position is equipped with a heat recovery device for indirect heat exchange between the medium in the first section and the second section.
  • thermometer and a hygrometer are provided with a thermometer and a hygrometer, and a thermometer and a hygrometer are also provided between the condenser and the fan.
  • the evaporator in the pipeline is matched with a condensate pan, and the condensate pan is matched with a water pipe for draining the condensed water received by the condensate pan out of the pipeline.
  • the fan and the compressor are respectively matched with a frequency converter, and the expansion valve is an electronic expansion valve for adjusting the flow of refrigerant.
  • the second objective of the present disclosure is to provide a fire hose drying device, which adopts the following technical solutions:
  • It includes a drying box and the above-mentioned circulating drying device, and the first end and the second end of the pipeline are respectively connected with the drying box.
  • At least one rotating bracket is provided in the drying box for carrying and driving the fire hose to rotate at different speeds.
  • the drying box is provided with a spray head, which is arranged toward the supporting structure of the rotating support, and is used for spraying water to the fire hose for washing; the bottom of the drying box is equipped with a water collecting pipe for collecting the water in the drying box and transporting it to the drying box. Outside the box.
  • the third object of the present disclosure is to provide a fire hose drying method, using the fire hose drying system as described above, including the following steps:
  • the nozzle sprays water to the low-speed fire hose on the rotating bracket, and stops spraying water until the cleaning is completed;
  • the rotating bracket rotates at a high speed to realize the preliminary drying of the fire hose
  • the airflow passes through the drying box to dry the fire hose at low speed on the rotating bracket, and the generated low temperature and high humidity airflow is input through the first end into the circulating drying device for heating and dehumidification;
  • the condenser when starting the circulating drying device, first start the evaporator outside the pipeline to cooperate with the condenser to form a heat pump system to preheat the pipeline. After the environment in the pipeline reaches the required temperature and humidity, the condenser is changed to connect to the pipeline The evaporator inside forms a heat pump system for operation.
  • the crossing point is formed by the curved pipe structure, and a heat recovery device is installed at the crossing point.
  • the airflow at the entrance and the condensed airflow are used for heat exchange, so as to achieve a preliminary cooling of the airflow at the entrance and a preliminary analysis of the condensed airflow. Heat up, make full use of heat exchange to accelerate condensation and heat up, improve the utilization rate of heat, and achieve the effect of saving energy;
  • the air supply volume, air supply temperature, and evaporation temperature can be adjusted to achieve the adjustment of the drying speed, thereby adapting to the different needs of the drying process;
  • Fig. 1 is a schematic diagram of the structure of the circulating drying device and the drying box in the embodiments 1, 2, and 3 of the disclosure.
  • the circulating air drying equipment in the prior art uses circulating air to achieve drying, but during initial operation, the environment in the pipeline limits the heat absorption and heat release capabilities of the heat pump, resulting in a stable cycle of the equipment as a whole Drying has a long start-up time and high energy consumption; in view of the above-mentioned problems, the present disclosure proposes a circulating drying device, a fire hose drying system and a method.
  • FIG. 1 a circulating drying device is proposed.
  • the pipeline is connected with the external drying box to realize circulating air in cooperation with the drying box;
  • the heat pump system is installed in conjunction with the pipeline, and the condenser and evaporator are used to condense and dehumidify the pipeline and heat and dehumidify;
  • the pipeline is set in a curved structure to form a cross of the pipeline, and a heat recovery device is used in the cross section to make indirect heat exchange between the two sections of the pipeline to reduce the heat in the airflow.
  • the monitoring elements include a thermometer and a hygrometer.
  • the temperature and humidity in the pipeline can be monitored through the thermometer and hygrometer, which is convenient for adjusting the operating parameters of the heat pump system.
  • the heat pump system includes an evaporator, a condenser, an expansion valve, and a compressor that cooperate with each other.
  • the evaporator in the pipeline and the evaporator outside the pipeline operate in time sharing, which can respectively cooperate with the condenser and the compressor to form a heat pump system.
  • one evaporator inside and outside the pipeline is taken as an example to describe the above scheme in detail;
  • the circulating drying device includes a pipeline 15, a fan 6, a first evaporator 1.1, a second evaporator 1.2, a compressor 2, a condenser 3, a first expansion valve, a second expansion valve, a condensate tray, and a heat recovery device 5;
  • a first evaporator, a condenser and a fan are arranged in the pipeline from the first end to the second end in sequence, and the second evaporator and the compressor are arranged outside the pipeline;
  • the compressor, the condenser, the first expansion valve and the first evaporator are connected in series to form the first heat pump system, and the compressor, the condenser, the second expansion valve and the second evaporator are connected in series to form the second heat pump system;
  • the first heat pump system and the second heat pump system run in time sharing. During the start-up phase, it is connected to the second evaporator outside the pipeline, and the second heat pump system is operated to quickly obtain heat from outside the pipeline, preheat the environment inside the pipeline, and improve the start-up of the device speed;
  • the condenser is connected to the first evaporator in the pipeline, and the first heat pump system is operated to realize the dehumidification and heating process of the airflow in the pipeline, and meet the operation requirements of circulating air drying.
  • the fan and the compressor are respectively matched with a frequency converter, and the expansion valve is an electronic expansion valve for adjusting the flow of refrigerant;
  • Fan and frequency converter the purpose is to adjust the air volume, to achieve the purpose of energy saving
  • the initial air volume is large, which can quickly reduce the humidity, and the later air volume is small to achieve sufficient drying.
  • the use of frequency converters can achieve on-demand control of air volume
  • the compressor is equipped with frequency conversion, the purpose is to adjust the condensing pressure, and then adjust the air supply temperature;
  • the expansion valve selects an electronic expansion valve 4 to adjust the refrigerant flow rate, thereby adjusting the evaporating temperature, and then adjusting the cooling and dehumidifying speed.
  • the evaporator can also be arranged in more, for example, at least two first evaporators are arranged in the pipeline, and the first evaporators are respectively connected to the condenser through different expansion valves, so as to cooperate with the condenser. Realize the multi-stage condensation of the airflow in the pipeline; you can also control the cooling capacity by choosing to open a different number of expansion valves;
  • At least two second evaporators are arranged outside the pipeline, and the second evaporators are respectively connected to the condenser through different expansion valves, so as to cooperate with the condenser to achieve multi-stage preheating of the airflow in the pipeline, and by opening different numbers of expansions Valve adjusts the preheating speed;
  • the first end of the pipe to the evaporator in the pipe is the first section
  • the evaporator in the pipe to the condenser is the second section
  • the first section and the second section A cross structure is formed between them, and a heat recovery device is installed at the cross position for indirect heat exchange between the medium in the first section and the second section;
  • the installation difficulty and air flow loss caused by the arrangement of cross pipes should also be considered.
  • reducing the bending of the pipes is beneficial to improve
  • the circulation efficiency of the airflow in the pipeline improves the heat exchange efficiency of the heat pump; after comprehensively considering the heat recovery and heat exchange efficiency, the number of heat recovery devices is selected and configured.
  • the intersection is formed by the curved pipe structure, and a heat recovery device is installed at the intersection.
  • the airflow at the entrance and the condensed airflow are used for heat exchange, so as to achieve the preliminary cooling of the inlet airflow and the preliminary heating of the condensed airflow.
  • the use of heat exchange to accelerate condensation and accelerate heating improves the utilization rate of heat, and achieves the effect of saving energy.
  • thermometers and hygrometers the inlet and outlet positions of the corresponding evaporator in the first and second sections of the pipeline are equipped with thermometers and hygrometers, condensers and fans. There are also thermometers and hygrometers in between;
  • the monitoring elements are used to monitor the locations where the temperature and humidity in the pipeline have changed significantly, and the operating conditions of the airflow in the pipeline are adjusted to meet actual needs.
  • a condensate pan 11 is fitted, and the condensate pan is fitted with a water pipe.
  • the water pipe here is a condensate pipe 12, which is used to The received condensate is discharged out of the pipeline;
  • a corresponding condensate tray can also be configured, or the second evaporator can be arranged above the water tank containing the condensed water by a bracket, so that the condensed water drips directly into the water tank.
  • a box structure can also be added to realize heat preservation and noise reduction during the operation of the circulating drying device.
  • the fan For the arrangement of the fan, it is arranged near the second end of the pipeline, and the airflow that has been heated and reduced in relative humidity at the condenser is input into the drying box.
  • an axial fan can be used.
  • the fan in the pipeline structure enables the pipeline to cooperate with the drying box to form a circulating air flow.
  • the airflow After the airflow dries the drying box, it enters the pipe through the first end.
  • the temperature of the airflow at the first end is 35°C
  • relative humidity is 63.5%
  • water content is 22.7g/kg, and enters the heat recovery device 5 for heat exchange.
  • the air with a temperature of 35°C moves upwards, and the air with a temperature of 21°C moves to the left, and indirect heat exchange occurs between the two; the air with a temperature of 35°C becomes 30°C.
  • the relative humidity is increased to 84%, and the air at a temperature of 21°C becomes 24°C;
  • the air with a temperature of 30°C enters the first evaporator 1.1 for cooling and dehumidification.
  • the condensed water drops on the condensate tray 11 and is discharged to the outside along the drain pipe; the air at 30°C becomes 21 after passing through the first evaporator 1.1.
  • the relative humidity is 100%, the water vapor in the air condenses into water, and the moisture content changes from 22.7g/kg to 15.7g/kg; the air flowing out of the first evaporator 1.1 enters the heat recovery device 5 for indirect exchange During the thermal process, the temperature becomes 24°C and the relative humidity becomes 83.5%;
  • the air flowing out of the heat recovery device 5 flows through the condenser 3 to undergo an indirect heat exchange process, the temperature becomes 52°C, and the relative humidity becomes 18.25%; then it is pressurized and transported by the fan 6 to the outlet of the second end and enters the drying box. Complete a cycle.
  • FIG. 1 a fire hose drying system is proposed.
  • the circulating drying device cooperates with the box body to form a closed circulating drying system, which can Fire hose for rapid drying;
  • the drying box is equipped with a fire hose support structure and a cleaning structure, and at least one rotating bracket is provided in the drying box for carrying and driving the fire hose to rotate at different speeds;
  • the drying box is provided with a spray head 10, which is arranged toward the supporting structure of the rotating support, and is used to communicate with the external water supply pipe 14 and spray the water in the water supply pipe to the fire hose for washing; the bottom of the drying box is matched with a water collection pipe 13, It is used to collect the water in the drying box and transport it to the outside of the drying box.
  • a spray head 10 which is arranged toward the supporting structure of the rotating support, and is used to communicate with the external water supply pipe 14 and spray the water in the water supply pipe to the fire hose for washing;
  • the bottom of the drying box is matched with a water collection pipe 13, It is used to collect the water in the drying box and transport it to the outside of the drying box.
  • the rotating bracket includes a bracket 9, a rotating shaft 8, and a motor 7.
  • the motor drives the bracket to rotate through a transmission mechanism in cooperation with the rotating shaft, and the bracket is a frame-type support structure;
  • the frame-type bracket can easily filter the fire hose during the cleaning process, and the water flow can smoothly flow out of the bracket during drying and washing; in addition, it can improve the airflow and the fire hose during the secondary drying.
  • the contact area reduces the shielding of the fire hose.
  • the bottom of the drying box is an inclined bottom surface to facilitate the collection of water flow, and the water collection pipe is connected to the lowest point. Discharge to the outside;
  • the number of rotating brackets can be selected according to the number of fire hoses that need to be dried in the same batch, and the specific number is not specifically limited here;
  • the motor 7 is a variable frequency motor, which can adjust the rotation speed of the rotating shaft and the bracket.
  • cleaning reduce the rotation speed, so that the water flow can fully clean the fire hose; when it is dried, the rotation speed is increased, and the water discharge is improved.
  • Ability When drying, reduce the speed again to facilitate the airflow to fully contact the surface of the fire hose and improve the drying efficiency.
  • a rotating bracket is set in the drying direction, and the fire hose can be cleaned by rotating and matching the nozzle.
  • the rotation speed can also be adjusted to achieve drying, and the fire hose can be dried initially, and the circulating air output from the circulating drying device can be used for secondary drying. In turn, the fire hose can be fully dried.
  • FIG. 1 a method for drying a fire hose is proposed, using the fire hose drying device as described in Embodiment 2.
  • the nozzle sprays water to the low-speed fire hose on the rotating bracket, and stops spraying water until the cleaning is completed;
  • the rotating bracket rotates at a high speed to realize the preliminary drying of the fire hose
  • the high-temperature and low-humidity airflow in the pipeline is input into the drying box through the second end through the fan;
  • the airflow passes through the drying box to dry the fire hose at low speed on the rotating bracket, and the generated low temperature and high humidity airflow is input through the first end into the circulating drying device for heating and dehumidification;
  • the refrigerant passes through the second evaporator to increase the air temperature in the pipe; when the temperature in the pipe reaches 52°C, the refrigerant no longer passes through the second evaporator, After passing through the first evaporator, it serves the purpose of cooling and dehumidification.

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Abstract

本公开提供一种循环干燥装置、消防水带干燥系统及方法，涉及干燥设备领域，包括管道，用于接入干燥箱，管道从第一端到第二端方向上内部依次设有蒸发器、冷凝器和风机，蒸发器在管道内和管道外至少各布置一个，冷凝器配合压缩机、膨胀阀和所有蒸发器形成热泵系统，管道内和管道外的蒸发器通过相异的膨胀阀接入冷凝器，管道内的蒸发器和管道外的蒸发器不同时运行，通过管道配合热泵系统形成循环风供应结构，并配置管道内的蒸发器和管道外的蒸发器，在启动时从管道外获取热量，达到快速启动至稳定循环状态的效果，降低能耗。

Description

一种循环干燥装置、消防水带干燥系统及方法 技术领域
本公开涉及干燥设备领域，特别涉及一种循环干燥装置、消防水带干燥系统及方法。
背景技术
本部分的陈述仅仅是提供了与本公开相关的背景技术，并不必然构成现有技术。
消防水带为重要的设备工具，在消防水带使用后，表面会存在大量的水分和污渍，若不能及时对消防水带进行清洗和干燥处理，潮湿环境会导致水带的发霉腐烂，削减水带的承压能力，缩短水带的使用寿命。
发明人发现，目前虽然具有较多的干燥设备，通过升温或提高气流流速的方式对使用后的消防水带进行烘干或风干，达到对消防水带进行快速干燥的目的；但是目前的干燥设备多为敞开式结构，热风气流无法充分利用，导致资源浪费；对于一些通过热泵配合管道形成的循环风干燥设备，其虽然采用循环风实现干燥，但是在初始运行时，管道内环境限制热泵的吸热和放热能力，导致设备整体达到稳定循环干燥的启动时间较长，能耗较大；另外，目前对于消防水带并没有专用的清洗、干燥设备，难以满足消防水带的综合清洗、干燥处理的需求。
发明内容
本公开的目的是针对现有技术存在的缺陷，提供一种循环干燥装置、消防水带干燥系统及方法，通过管道配合热泵系统形成循环风供应结构，并配置管道内的蒸发器和管道外的蒸发器，在启动时从管道外获取热量，达到快速启动至稳定 循环状态的效果，降低能耗。
本公开的第一目的是提供一种循环干燥装置，采用以下技术方案：
包括管道，用于接入干燥箱，管道从第一端到第二端方向上内部依次设有蒸发器、冷凝器和风机，蒸发器在管道内和管道外至少各布置一个，冷凝器配合压缩机、膨胀阀和所有蒸发器形成热泵系统，管道内和管道外的蒸发器通过相异的膨胀阀接入冷凝器，管道内的蒸发器和管道外的蒸发器不同时运行。
进一步地，所述管道为弯曲管道，第一端到管道内蒸发器为第一节段，管道内蒸发器到冷凝器为第二节段，第一节段和第二节段之间形成交叉结构，交叉位置设有热回收器，用于使第一节段和第二节段内的介质进行间接换热。
进一步地，所述第一节段和第二节段管道内对应蒸发器的入口和出口位置均设有温度计和湿度计，冷凝器和风机之间也设有温度计和湿度计。
进一步地，管道内蒸发器配合有凝结水盘，凝结水盘配合有水管，用于将凝结水盘承接的凝结水排出管道外。
所述风机、压缩机分别配合有变频器，所述膨胀阀为电子膨胀阀，用于调节制冷剂流量。
本公开的第二目的是提供一种消防水带干燥装置，采用以下技术方案：
包括干燥箱和如上所述的循环干燥装置，管道的第一端和第二端分别连通干燥箱。
进一步地，所述干燥箱内设置有至少一个转动支架，用于承载并带动消防水带以不同速度转动。
进一步地，所述干燥箱内设有喷头，喷头朝向转动支架承载结构布置，用于向消防水带喷水冲洗；干燥箱底部配合有集水管，用于收集干燥箱内的水并输送 到干燥箱外。
本公开的第三目的是提供一种消防水带干燥方法，利用如上所述的消防水带干燥系统，包括以下步骤：
喷头向位于转动支架上低速转动的消防水带喷水，直至清洗完毕停止喷水；
转动支架高速转动实现消防水带的初步干燥；
启动循环干燥装置，通过风机将管道内高温度、低湿度气流通过第二端输入干燥箱内；
气流穿过干燥箱对转动支架低速转动的消防水带进行二次干燥，产生的低温度、高湿度气流输入通过第一端输入循环干燥装置内进行升温降湿；
直至将消防水带干燥至所需程度。
进一步地，在启动循环干燥装置时，先启动管道外的蒸发器配合冷凝器形成热泵系统，进行管道内的预热，管道内的环境达到所需温度和湿度后，冷凝器改为接通管道内的蒸发器形成热泵系统运行。
与现有技术相比，本公开具有的优点和积极效果是：
(1)通过在管道内外均布置有蒸发器，并分时接入冷凝器运行，在启动阶段接入管道外蒸发器，从管道外快速获取热量，对管道内环境进行预热，提高装置的启动速度，在预热完毕装置稳定运行后，冷凝器接入管道内蒸发器，实现对管道内气流的降湿、升温过程，满足循环风干燥的运行需求；
(2)通过弯曲的管道结构形成交叉点，在交叉点处设置热回收器，利用入口处的气流和经过冷凝的气流进行换热，达到对入口处气流的初步降温、对经过冷凝气流的初步升温，充分利用热交换实现加速冷凝和加速升温，提高了热量的利用率，达到节省能源的效果；
(3)通过配置变频器和电子膨胀阀，能够对送风风量、送风温度、蒸发温度进行调节，从而实现对干燥速度的调节，依此适应干燥过程的不同需求；
(4)在干燥向内设置转动支架，通过转动配合喷头实现对消防水带的清洗，调节转动速度还能够实现甩干，对消防水带实现初步干燥，配合循环干燥装置输出的循环风进行二次干燥，进而实现对消防水带的充分干燥。
附图说明
构成本公开的一部分的说明书附图用来提供对本公开的进一步理解，本公开的示意性实施例及其说明用于解释本公开，并不构成对本公开的不当限定。
图1为本公开实施例1、2、3中循环干燥装置配合干燥箱的结构示意图。
图中：1.1：第一蒸发器、1.2：第二蒸发器、2：压缩机、3：冷凝器、4：电子膨胀阀、5：热回收器、6：风机、7：电机、8：旋转轴、9：支架、10：喷头、11：凝结水盘、12：冷凝水管、13：集水管、14：送水管、15：管道。
具体实施方式
应该指出，以下详细说明都是例示性的，旨在对本公开提供进一步地说明。除非另有指明，本文使用的所有技术和科学术语具有与本公开所属技术领域的普通技术人员通常理解的相同含义。
需要注意的是，这里所使用的术语仅是为了描述具体实施方式，而非意图限制根据本公开的示例性实施方式。如在这里所使用的，除非上下文另外明确指出，否则单数形式也意图包括复数形式，此外，还应当理解的是，当在本说明书中使用术语“包含”和/或“包括”时，其指明存在特征、步骤、操作、器件、组件和/或它们的组合；
为了方便叙述，本公开中如果出现“上”、“下”、“左”、“右”字样，仅表示与 附图本身的上、下、左、右方向一致，并不对结构起限定作用，仅仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的设备或元件必须具有特定的方位，以特定的方位构造和操作，因此不能理解为对本公开的限制。
正如背景技术中所介绍的，现有技术中循环风干燥设备，其虽然采用循环风实现干燥，但是在初始运行时，管道内环境限制热泵的吸热和放热能力，导致设备整体达到稳定循环干燥的启动时间较长，能耗较大；针对上述问题，本公开提出了一种循环干燥装置、消防水带干燥系统及方法。
实施例1
本公开的一种典型的实施方式中，如图1所示，提出了一种循环干燥装置。
主要包括热泵系统、管道和监测元件，管道与外部干燥箱对接，配合干燥箱实现循环风；热泵系统与管道配合安装，利用冷凝器、蒸发器对管道内进行冷凝除水和加热降湿；
另外，为了提高管道运行过程中的能量利用率，将管道设置为弯曲结构，形成管道的交叉，在交叉段配合热回收器，使得两节段管道之间进行间接换热，对气流中的热量进行充分利用；
监测元件包括温度计和湿度计，通过温度计和湿度计实现对管道内温度、湿度的监测，便于对热泵系统的运行参数进行调节。
需要特别指出的是，热泵系统包括相互配合的蒸发器、冷凝器、膨胀阀和压缩机，蒸发器至少设置有两个，且在管道内外至少各设置一个；蒸发器通过相异的膨胀阀接入冷凝器，管道内的蒸发器和管道外的蒸发器分时运行，能够分别与冷凝器和压缩机配合形成热泵系统。
具体的，在本实施例中，以管道内外各一个蒸发器为例，对上述方案进行详 细描述；
循环干燥装置包括管道15、风机6、第一蒸发器1.1、第二蒸发器1.2、压缩机2、冷凝器3、第一膨胀阀、第二膨胀阀、凝结水盘、热回收器5；
管道从第一端到第二端方向上内部依次设有第一蒸发器、冷凝器和风机，第二蒸发器、压缩机布置在管道外；
压缩机、冷凝器、第一膨胀阀和第一蒸发器依次串联形成第一热泵系统，压缩机、冷凝器、第二膨胀阀和第二蒸发器依次串联形成第二热泵系统；
第一热泵系统和第二热泵系统分时运行，在启动阶段接入管道外第二蒸发器，运行第二热泵系统，从管道外快速获取热量，对管道内环境进行预热，提高装置的启动速度；
在预热完毕装置稳定运行后，冷凝器接入管道内第一蒸发器，运行第一热泵系统，实现对管道内气流的降湿、升温过程，满足循环风干燥的运行需求。
所述风机、压缩机分别配合有变频器，所述膨胀阀为电子膨胀阀，用于调节制冷剂流量；
风机加变频器，目的是调节送风风量，达到节能的目的；
另外，即使在对同一待干燥物进行干燥时，开始的风量大，实现快速降低湿度，后期的风量小，实现充分干燥，利用变频器能够实现风量的按需控制；
压缩机加变频，目的是调节冷凝压力，进而调节送风温度；
所述的膨胀阀选用电子膨胀阀4，以调节制冷剂流量，从而对蒸发温度进行调节，进而调节冷却除湿的速度。
可以理解的是，所述蒸发器还可以布置为更多个，比如在管道内布置至少两个第一蒸发器，第一蒸发器分别通过相异的膨胀阀接入冷凝器，从而配合冷凝器 实现对管道内气流的多级冷凝；还可以通过选择开启不同数目的膨胀阀对冷却能力进行控制；
比如在管道外布置至少两个第二蒸发器，第二蒸发器分别通过相异的膨胀阀接入冷凝器，从而配合冷凝器实现对管道内气流的多级预热，通过开启不同数目的膨胀阀调整预热速度；
当然，上述的蒸发器的数目是不固定的，根据需求进行配置即可。
对于热回收器的布置，在本实施例中，管道第一端到管道内蒸发器为第一节段，管道内蒸发器到冷凝器为第二节段，第一节段和第二节段之间形成交叉结构，交叉位置设有热回收器，用于使第一节段和第二节段内的介质进行间接换热；
当然，可以理解的是，在管道较长的情况下，还可以使第一节段和第二节段之间形成多个交叉点，并分别在交叉点位置布置热回收器，增加布置的热回收器的数目，能够提高热量的回收量；
需要指出的是，在根据需求选择热回收器的数目时，还要考虑布置交叉管道带来的安装难度和气流流动损失，在满足回收量需求的情况下，减少管道的弯折，有利于提高气流在管道内的流通效率，从而提高热泵的换热效率；综合考虑回收热量和换热效率后，对热回收器的数目进行选择配置。
通过弯曲的管道结构形成交叉点，在交叉点处设置热回收器，利用入口处的气流和经过冷凝的气流进行换热，达到对入口处气流的初步降温、对经过冷凝气流的初步升温，充分利用热交换实现加速冷凝和加速升温，提高了热量的利用率，达到节省能源的效果。
对于监测元件的布置位置，在本实施例中，如图1所示，第一节段和第二节段管道内对应蒸发器的入口和出口位置均设有温度计和湿度计，冷凝器和风机之 间也设有温度计和湿度计；
利用监测元件对管道内温度、湿度产生明显变化的位置进行监测，对管道内气流的运行状况进行调整，满足实际需求。
另外，对于管道内第一蒸发器处冷凝水的排出，配合有凝结水盘11，凝结水盘配合有水管，在本实施例中，此处的水管为冷凝水管12，用于将凝结水盘承接的凝结水排出管道外；
对于位于管道外的第二蒸发器，也可以配置相应的凝结水盘，也可以支架将第二蒸发器布置在容纳凝结水的水箱上方，使凝结水直接滴落在水箱内。
对于循环干燥装置外部，还可以加装箱体结构，实现对循环干燥装置运行过程中的保温、降噪。
对于风机的布置，其布置在靠近管道靠近第二端的位置，将经过冷凝器处经过加热、降低相对湿度后的气流输入到干燥箱内，其在具体的选择上，可以选用轴流风机等适用于管道结构的风机，使管道配合干燥箱能够形成循环气流。
通过带入温度和湿度参数，对本实施例中循环干燥装置的正常稳定运行过程进行详细描述：
气流对干燥箱内进行干燥后，通过第一端进入管道内，第一端气流的温度为35℃、相对湿度为63.5％、含水量为22.7g/kg，进入热回收器5内进行热量交换，温度为35℃的空气向上走，温度为21℃的空气向左走，两者发生间接换热；温度为35℃的空气变成30℃。相对湿度提升至84％，温度为21℃的空气变成24℃；
温度为30℃的空气进入第一蒸发器1.1，进行冷却除湿过程，冷凝水滴落在凝结水盘11上，顺着排水管排出到外界；30℃的空气经过第一蒸发器1.1后变成21℃，相对湿度为100％，空气中的水蒸气凝结成水，含湿量从22.7g/kg变成 15.7g/kg；从第一蒸发器1.1流出的空气进入热回收器5内发生间接换热过程，温度变成24℃，相对湿度变成83.5％；
从热回收器5流出的空气流经冷凝器3发生间接换热过程，温度变成52℃，相对湿度变成18.25％；再由风机6加压输送到第二端的出口，进入干燥箱内，完成一个循环。
对应上述过程，参见附图1和下表，ABCDE五个测点处的监测数据如下：
Figure PCTCN2020117752-appb-000001
需要指出的是，上述过程及参数是示例性的，在实际运行过程中的参数测定值是根据运行情况变化的，通过测点处的参数能够对整个循环干燥装置的运作情况进行掌握，从而为其调整提供参数依据。
实施例2
本公开的另一典型实施例中，如图1所示，提出一种消防水带干燥系统。
包括干燥箱和如实施例1所述的循环干燥装置，干燥箱的进风口和出风口分别与管道的第二端和第一端连通，循环干燥装置配合箱体形成封闭循环干燥系统，能够对消防水带进行快速干燥；
干燥箱内配置有消防水带支撑结构和清洗结构，所述干燥箱内设置有至少一个转动支架，用于承载并带动消防水带以不同速度转动；
所述干燥箱内设有喷头10，喷头朝向转动支架承载结构布置，用于连通外部送水管14，并将送水管内的水流向消防水带喷出实现冲洗；干燥箱底部配合有集 水管13，用于收集干燥箱内的水并输送到干燥箱外。
具体的，对于转动支架，其包括支架9、旋转轴8和电机7，所述电机通过传动机构配合旋转轴带动支架转动，支架为框架式支撑结构；
框架式的支架能够方便的对清洗过程中的消防水带进行滤水，在甩干和冲洗时，水流能够顺利从支架上流出；另外，在二次干燥时，能够提高气流与消防水带的接触面积，减少对消防水带的遮挡。
可以理解的是，喷头设置有多个，能够从多个方向对消防水带进行冲洗，提高其清洁能力；所述干燥箱底部为倾斜底面，方便水流的汇集，在最低处对接集水管将水流排出到外部；
对于转动支架的数目，可以根据同批次需要干燥的消防水带数量进行选择，具体的数目在此不做特殊限定；
需要指出的是，电机7为变频电机，能够对调节旋转轴和支架的转速，清洗的时候调低转速，便于水流对消防水带进行充分的清理；甩干的时候提高转动速度，提高水分排出能力；在进行干燥的时候，再次调低其转速，方便气流与消防水带表面充分接触，提高干燥效率。
在干燥向内设置转动支架，通过转动配合喷头实现对消防水带的清洗，调节转动速度还能够实现甩干，对消防水带实现初步干燥，配合循环干燥装置输出的循环风进行二次干燥，进而实现对消防水带的充分干燥。
实施例3
本公开的再一典型实施例中，如图1所示，提出一种消防水带干燥方法，利用如实施例2所述的消防水带干燥装置。
喷头向位于转动支架上低速转动的消防水带喷水，直至清洗完毕停止喷水；
转动支架高速转动实现消防水带的初步干燥；
启动循环干燥装置，先启动管道外的蒸发器配合冷凝器形成热泵系统，进行管道内的预热，管道内的环境达到所需温度和湿度后，冷凝器改为接通管道内的蒸发器形成热泵系统运行；
通过风机将管道内高温度、低湿度气流通过第二端输入干燥箱内；
气流穿过干燥箱对转动支架低速转动的消防水带进行二次干燥，产生的低温度、高湿度气流输入通过第一端输入循环干燥装置内进行升温降湿；
直至将消防水带干燥至所需程度。
具体的，在本实施例中，循环干燥装置开启后，制冷剂经过第二蒸发器，提升管道内的空气温度；当管道内温度达到52℃以后，让制冷剂不再经过第二蒸发器，经过第一蒸发器，起到冷却除湿的目的。
以上所述仅为本公开的优选实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (10)

  1. 一种循环干燥装置，其特征在于，包括管道，管道从第一端到第二端方向上内部依次设有蒸发器、冷凝器和风机，蒸发器在管道内和管道外至少各布置一个，冷凝器配合压缩机、膨胀阀和所有蒸发器形成热泵系统，管道内和管道外的蒸发器通过相异的膨胀阀接入冷凝器，管道内的蒸发器和管道外的蒸发器不同时运行。
  2. 如权利要求1所述的循环干燥装置，其特征在于，所述管道为弯曲管道，第一端到管道内蒸发器为第一节段，管道内蒸发器到冷凝器为第二节段，第一节段和第二节段之间形成交叉结构，交叉位置设有热回收器，用于使第一节段和第二节段内的介质进行间接换热。
  3. 如权利要求2所述的循环干燥装置，其特征在于，所述第一节段和第二节段管道内对应蒸发器的入口和出口位置均设有温度计和湿度计，冷凝器和风机之间也设有温度计和湿度计。
  4. 如权利要求1所述的循环干燥装置，其特征在于，管道内蒸发器配合有凝结水盘，凝结水盘配合有水管，用于将凝结水盘承接的凝结水排出管道外。
  5. 如权利要求1所述的循环干燥装置，其特征在于，所述风机、压缩机分别配合有变频器，所述膨胀阀为电子膨胀阀，用于调节制冷剂流量。
  6. 一种消防水带干燥系统，其特征在于，包括干燥箱和如权利要求1-5任一项所述的循环干燥装置，管道的第一端和第二端分别连通干燥箱。
  7. 如权利要求6所述的消防水带干燥系统，其特征在于，所述干燥箱内设置有至少一个转动支架，用于承载并带动消防水带以不同速度转动。
  8. 如权利要求7所述的消防水带干燥系统，其特征在于，所述干燥箱内设有喷头，喷头朝向转动支架承载结构布置，用于向消防水带喷水冲洗；干燥箱底部配合有 集水管，用于收集干燥箱内的水并输送到干燥箱外。
  9. 一种消防水带干燥方法，其特征在于，利用如权利要求8所述的消防水带干燥系统，包括以下步骤：
    喷头向位于转动支架上低速转动的消防水带喷水，直至清洗完毕停止喷水；
    转动支架高速转动实现消防水带的初步干燥；
    启动循环干燥装置，通过风机将管道内高温度、低湿度气流通过第二端输入干燥箱内；
    气流穿过干燥箱对转动支架低速转动的消防水带进行二次干燥，产生的低温度、高湿度气流输入通过第一端输入循环干燥装置内进行升温降湿；
    直至将消防水带干燥至所需程度。
  10. 如权利要求9所述的一种消防水带干燥方法，其特征在于，在启动循环干燥装置时，先启动管道外的蒸发器配合冷凝器形成热泵系统，进行管道内的预热，管道内的环境达到所需温度和湿度后，冷凝器改为接通管道内的蒸发器形成热泵系统运行。
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