CN111569344B - Circulating drying device, fire hose drying system and method - Google Patents

Circulating drying device, fire hose drying system and method Download PDF

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Publication number
CN111569344B
CN111569344B CN202010468559.2A CN202010468559A CN111569344B CN 111569344 B CN111569344 B CN 111569344B CN 202010468559 A CN202010468559 A CN 202010468559A CN 111569344 B CN111569344 B CN 111569344B
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pipeline
drying
fire hose
condenser
evaporator
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CN111569344A (en
Inventor
刘龙
黄晨
唐荣琪
于昊
李永振
张成龙
吴琦
刘正中
廖俊涛
杜丽顺
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Shandong Zhonghe Intelligent Equipment Co ltd
Qingdao University of Technology
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Shandong Zhonghe Intelligent Equipment Co ltd
Qingdao University of Technology
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Priority to CN202010468559.2A priority Critical patent/CN111569344B/en
Publication of CN111569344A publication Critical patent/CN111569344A/en
Priority to PCT/CN2020/117752 priority patent/WO2021237998A1/en
Priority to LU500054A priority patent/LU500054B1/en
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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C33/00Hose accessories
    • A62C33/02Apparatus for cleaning or drying hoses

Abstract

The utility model provides a circulation drying device, fire hose drying system and method, relate to the drying equipment field, including the pipeline, be used for inserting the drying cabinet, the pipeline is equipped with the evaporimeter in proper order from first end to second end direction on, condenser and fan, the evaporimeter respectively arranges one at least in the pipeline and outside the pipeline, condenser cooperation compressor, expansion valve and all evaporimeters form the heat pump system, the evaporimeter in the pipeline and outside the pipeline inserts the condenser through different expansion valves, evaporimeter in the pipeline and the evaporimeter outside the pipeline do not move simultaneously, form circulated air supply structure through pipeline cooperation heat pump system, and dispose evaporimeter in the pipeline and the evaporimeter outside the pipeline, obtain the heat from outside the pipeline when starting, reach quick start to the effect of stable cycle state, reduce the energy consumption.

Description

Circulating drying device, fire hose drying system and method
Technical Field
The disclosure relates to the field of drying equipment, in particular to a circulating drying device, a fire hose drying system and a fire hose drying method.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The fire hose is an important equipment tool, after the fire hose is used, a large amount of water and stains exist on the surface of the fire hose, if the fire hose cannot be cleaned and dried in time, the fire hose is mildewed and decayed in a humid environment, the bearing capacity of the fire hose is reduced, and the service life of the fire hose is shortened.
The inventor finds that although more drying equipment is provided at present, the fire hose used is dried or air-dried in a mode of raising the temperature or increasing the flow rate of air flow, so that the aim of quickly drying the fire hose is fulfilled; however, most of the existing drying equipment are in an open structure, and hot air flow cannot be fully utilized, so that resource waste is caused; although some circulating air drying equipment formed by matching a heat pump with a pipeline adopts circulating air to realize drying, when the equipment is in initial operation, the environment in the pipeline limits the heat absorption and heat release capacity of the heat pump, so that the starting time for the whole equipment to achieve stable circulating drying is longer, and the energy consumption is higher; in addition, at present, no special cleaning and drying equipment is provided for the fire hose, and the requirements of comprehensive cleaning and drying treatment of the fire hose are difficult to meet.
Disclosure of Invention
The purpose of the present disclosure is to provide a circulation drying device, a fire hose drying system and a method, which are directed to the defects in the prior art, and the circulation air supply structure is formed by matching a pipeline with a heat pump system, and an evaporator inside the pipeline and an evaporator outside the pipeline are configured, so that heat is obtained from the outside of the pipeline when the fire hose is started, the effect of rapidly starting to a stable circulation state is achieved, and energy consumption is reduced.
The first purpose of this disclosure is to provide a circulation drying device, adopt following technical scheme:
the evaporator is connected with the condenser through different expansion valves, and the evaporator in the pipeline and the evaporator outside the pipeline do not operate simultaneously.
Furthermore, the pipeline is a bent pipeline, the first section is from the first end to the evaporator in the pipeline, the second section is from the evaporator in the pipeline to the condenser, a cross structure is formed between the first section and the second section, and a heat recovery device is arranged at the cross position and used for indirectly exchanging heat for media in the first section and the second section.
Furthermore, a thermometer and a hygrometer are arranged at the positions of the inlet and the outlet of the evaporator in the first section of pipeline and the second section of pipeline, and the thermometer and the hygrometer are also arranged between the condenser and the fan.
Furthermore, the evaporator in the pipeline is matched with a condensed water tray, and the condensed water tray is matched with a water pipe and used for discharging condensed water received by the condensed water tray 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 and used for adjusting the flow of the refrigerant.
The second purpose of the present disclosure is to provide a fire hose drying device, which adopts the following technical scheme:
the drying box comprises a drying box and the circulating drying device, wherein the first end and the second end of the pipeline are respectively communicated with the drying box.
Furthermore, at least one rotating support is arranged in the drying box and used for bearing and driving the fire hose to rotate at different speeds.
Furthermore, a spray head is arranged in the drying box, faces the rotating support bearing structure and is used for spraying water to the fire hose for washing; the bottom of the drying box is matched with a water collecting pipe which is used for collecting water in the drying box and conveying the water out of the drying box.
A 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 steps of:
the nozzle sprays water to the fire hose rotating at a low speed on the rotating bracket until the water spraying is stopped after the cleaning is finished;
the rotating bracket rotates at a high speed to realize the preliminary drying of the fire hose;
starting the circulating drying device, and inputting high-temperature and low-humidity airflow in the pipeline into the drying box through a second end by using the fan;
the air flow passes through the drying box to carry out secondary drying on the fire hose rotating at a low speed by the rotating bracket, and the generated low-temperature and high-humidity air flow is input into the circulating drying device through the first end to be heated and dehumidified;
until the fire hose is dried to the desired degree.
Further, when the circulating drying device is started, the evaporator outside the pipeline is started to be matched with the condenser to form a heat pump system, preheating is carried out in the pipeline, and after the environment in the pipeline reaches the required temperature and humidity, the condenser is changed into the evaporator in the pipeline to be connected to form the heat pump system to run.
Compared with the prior art, the utility model has the advantages and positive effects that:
(1) the evaporators are arranged inside and outside the pipeline respectively, the evaporators are connected into the condenser in a time-sharing mode to operate, the evaporator outside the pipeline is connected into the starting stage, heat is quickly obtained from the outside of the pipeline, the environment in the pipeline is preheated, the starting speed of the device is improved, after the device stably operates after preheating is finished, the condenser is connected into the evaporator in the pipeline, the dehumidification and temperature rise processes of air flow in the pipeline are achieved, and the operation requirement of drying circulating air is met;
(2) the cross point is formed by a bent pipeline structure, the heat recoverer is arranged at the cross point, and heat exchange is carried out by utilizing the air flow at the inlet and the condensed air flow, so that the purposes of primarily cooling the air flow at the inlet and primarily heating the condensed air flow are achieved, the heat exchange is fully utilized to realize accelerated condensation and accelerated heating, the utilization rate of heat is improved, and the effect of saving energy is achieved;
(3) the air supply quantity, the air supply temperature and the evaporation temperature can be adjusted by configuring the frequency converter and the electronic expansion valve, so that the drying speed can be adjusted, and different requirements of the drying process can be met;
(4) at the inside rotation support that sets up of drying, realize the washing to the waterproof area through the normal running fit shower nozzle, adjust slew velocity and can also realize spin-drying, realize preliminary drying to the waterproof area, the circulation wind of cooperation circulation drying device output carries out the secondary drying, and then realizes the abundant drying to the waterproof area.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic structural diagram of a circulation drying device in combination with a drying oven in embodiments 1, 2, and 3 of the present disclosure.
In the figure: 1.1: first evaporator, 1.2: second evaporator, 2: compressor, 3: condenser, 4: electronic expansion valve, 5: heat recovery device, 6: a fan and 7: a motor, 8: rotation axis, 9: support, 10: a nozzle, 11: condensate pan, 12: condensate pipe, 13: water collecting pipe, 14: and a water supply pipe.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate that the directions of movement are consistent with those of the figures themselves, and are not limiting in structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present disclosure.
As introduced in the background art, in the prior art, although the drying is realized by using the circulating air, in the initial operation, the environment in the pipeline limits the heat absorption and heat release capacity of the heat pump, so that the starting time for the whole equipment to achieve stable circulating drying is longer, and the energy consumption is larger; in order to solve the problems, the disclosure provides a circulating drying device, a fire hose drying system and a fire hose drying method.
Example 1
In an exemplary embodiment of the present disclosure, a circulation drying device is provided as shown in fig. 1.
The system mainly comprises a heat pump system, a pipeline and a monitoring element, wherein the pipeline is butted with an external drying oven and matched with the drying oven to realize circulating air; the heat pump system is installed in a matched manner with the pipeline, and a condenser and an evaporator are utilized to carry out condensation water removal and heating humidity reduction on the pipeline;
in addition, in order to improve the energy utilization rate in the running process of the pipeline, the pipeline is set into a bent structure to form the intersection of the pipeline, and a heat recoverer is matched at the intersection section, so that indirect heat exchange is carried out between two sections of pipelines, and the heat in the air flow is fully utilized;
the monitoring element comprises a thermometer and a hygrometer, and the temperature and the humidity in the pipeline can be monitored through the thermometer and the hygrometer, so that the operating parameters of the heat pump system can be conveniently adjusted.
The heat pump system comprises an evaporator, a condenser, an expansion valve and a compressor which are matched with each other, wherein at least two evaporators are arranged, and at least one evaporator is arranged inside and outside a pipeline; the evaporator is connected to the condenser through different expansion valves, the evaporator in the pipeline and the evaporator outside the pipeline run in a time-sharing mode, and the evaporator and the compressor can be matched to form a heat pump system respectively.
Specifically, in this embodiment, the above scheme is described in detail by taking an evaporator inside and outside the pipeline as an example;
the circulating drying device comprises a pipeline, 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 condensed water disc and a heat recoverer 5;
the first evaporator, the condenser and the fan are sequentially arranged in the pipeline from the first end to the second end, 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 sequentially connected in series to form a first heat pump system, the compressor, the condenser, the second expansion valve and the second evaporator are sequentially connected in series to form a second heat pump system,
the first heat pump system and the second heat pump system run in a time-sharing mode, a second evaporator outside the pipeline is connected in a starting stage, the second heat pump system runs, heat is obtained from the outside of the pipeline quickly, the environment in the pipeline is preheated, and the starting speed of the device is increased;
after the preheating device runs stably, the condenser is connected to the first evaporator in the pipeline, the first heat pump system is operated, the dehumidification and temperature rise processes of air flow in the pipeline are achieved, and the running requirement of drying circulating air is met.
The fan and the compressor are respectively matched with a frequency converter, and the expansion valve is an electronic expansion valve and is used for adjusting the flow of the refrigerant;
the fan is provided with a frequency converter, and aims to adjust the air supply quantity and achieve the aim of saving energy;
in addition, even when the same object to be dried is dried, the initial air volume is large, the humidity is quickly reduced, the later air volume is small, the full drying is realized, and the air volume can be controlled as required by using the frequency converter;
the compressor is added with frequency conversion to adjust the condensing pressure and further adjust the air supply temperature;
the expansion valve selects the electronic expansion valve 4 to adjust the flow of the refrigerant, so as to adjust the evaporation temperature and further adjust the cooling and dehumidifying speed.
It is understood that the evaporators may 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 to realize multi-stage condensation of the air flow in the pipeline; the cooling capacity can be controlled by selectively opening different numbers of expansion valves;
for example, at least two second evaporators are arranged outside the pipeline, the second evaporators are respectively connected to the condenser through different expansion valves, so that multistage preheating of airflow in the pipeline is realized by matching with the condenser, and the preheating speed is adjusted by opening different numbers of expansion valves;
of course, the number of the evaporators is not fixed, and the evaporators can be configured according to requirements.
For the arrangement of the heat recoverer, in the embodiment, the first end of the pipeline to the evaporator in the pipeline is a first section, the evaporator in the pipeline to the condenser is a second section, a cross structure is formed between the first section and the second section, and the heat recoverer is arranged at the cross position and used for indirectly exchanging heat of media in the first section and the second section;
of course, it is understood that, in the case of a long pipe, it is also possible to form a plurality of intersections between the first segment and the second segment, and to arrange the regenerators at the intersections, respectively, and to increase the number of the arranged regenerators, so that the amount of heat recovery can be increased;
it should be noted that when the number of the heat recovery devices is selected according to the requirement, the installation difficulty and the airflow flow loss caused by the arrangement of the crossed pipelines are also considered, and under the condition of meeting the requirement of the recovery amount, the bending of the pipelines is reduced, which is beneficial to improving the circulation efficiency of the airflow in the pipelines, thereby improving the heat exchange efficiency of the heat pump; after comprehensively considering the heat recovery and the heat exchange efficiency, the number of the heat recoverers is selected and configured.
Form the intersect through crooked pipeline structure, set up heat recovery ware in intersect department, utilize the air current of entrance and the air current through the condensation to carry out the heat transfer, reach the preliminary cooling to the entrance air current, to the preliminary intensification through the condensation air current, make full use of heat exchange realizes accelerating the condensation and increases the temperature with higher speed, has improved thermal utilization ratio, reaches the effect of the energy can be saved.
Regarding the arrangement positions of the monitoring elements, in the embodiment, as shown in fig. 1, a thermometer and a hygrometer are arranged at the inlet and the outlet of the corresponding evaporator in the first section of the pipeline and the second section of the pipeline, and a thermometer and a hygrometer are also arranged between the condenser and the fan;
the monitoring element is utilized to monitor the position where the temperature and the humidity in the pipeline obviously change, and the running condition of the air flow in the pipeline is adjusted to meet the actual requirement.
In addition, for the discharge of the condensed water at the first evaporator in the pipeline, a condensed water disk 11 is matched, and a water pipe is matched with the condensed water disk, in the embodiment, the water pipe at the position is a condensed water pipe 12 which is used for discharging the condensed water received by the condensed water disk out of the pipeline;
for the second evaporator located outside the pipe, a corresponding condensation water tray can also be configured, and a bracket can also be used for arranging the second evaporator above the water tank containing the condensation water, so that the condensation water directly drops into the water tank.
The external part of the circulating drying device can be additionally provided with a box body structure, so that heat preservation and noise reduction in the running process of the circulating drying device are realized.
To the arrangement of fan, it arranges in the position that is close to the pipeline and is close to the second end, will pass through condenser department through the heating, reduce the air current input after the relative humidity in the drying cabinet, and it can choose for use axial fan etc. to be applicable to the fan of pipeline structure on specific selection, makes pipeline cooperation drying cabinet can form the circulating air flow.
The normal and stable operation of the circulation drying apparatus in this embodiment will be described in detail by introducing the temperature and humidity parameters:
after drying the interior of the drying box, the air flow enters the pipeline through the first end, the temperature of the air flow at the first end is 35 ℃, the relative humidity is 63.5%, and the water content is 22.7g/kg, the air flow enters the heat recoverer 5 for heat exchange, the air with the temperature of 35 ℃ goes upwards, the air with the temperature of 21 ℃ goes leftwards, and indirect heat exchange is carried out between the air flow and the heat recoverer; the temperature of the air at 35 ℃ was changed to 30 ℃. The relative humidity is increased to 84 percent, and the air with the temperature of 21 ℃ is changed into 24 ℃;
air with the temperature of 30 ℃ enters the first evaporator 1.1 to be cooled and dehumidified, and condensed water drops on the condensed water tray 11 and is discharged to the outside along a drain pipe; after passing through a first evaporator 1.1, the air at 30 ℃ becomes 21 ℃, the relative humidity is 100 percent, water vapor in the air is condensed into water, and the moisture content is changed from 22.7g/kg to 15.7 g/kg; the air flowing out of the first evaporator 1.1 enters a heat recovery device 5 to generate an indirect heat exchange process, the temperature is 24 ℃, and the relative humidity is 83.5%;
the air flowing out of the heat recovery device 5 passes through the condenser 3 to generate an indirect heat exchange process, the temperature is changed to 52 ℃, and the relative humidity is changed to 18.25%; then the pressure is transmitted to the outlet of the second end by the blower 6, and the product enters the drying box to complete a cycle.
Corresponding to the above procedure, see figure 1 and the following table, the monitoring data at the five measurement points of ABCDE are as follows:
Figure GDA0002559480200000091
it should be noted that the above processes and parameters are exemplary, the measured values of the parameters in the actual operation process are changed according to the operation conditions, and the operation conditions of the whole circulation drying device can be grasped through the parameters at the measured points, so as to provide parameter basis for the adjustment.
Example 2
In another exemplary embodiment of the present disclosure, as shown in fig. 1, a fire hose drying system is provided.
The drying device comprises a drying box and the circulating drying device in the embodiment 1, wherein an air inlet and an air outlet of the drying box are respectively communicated with the second end and the first end of a pipeline, and the circulating drying device is matched with a box body to form a closed circulating drying system which can quickly dry a waterproof zone;
the drying box is internally provided with a fire hose supporting structure and a cleaning structure, and at least one rotating bracket is arranged in the drying box and used for bearing and driving the fire hose to rotate at different speeds;
a spray head 10 is arranged in the drying box, faces the rotary support bearing structure and is used for being communicated with an external water supply pipe 14 and spraying water in the water supply pipe to a fire hose to realize washing; the bottom of the drying box is matched with a water collecting pipe 13 which is used for collecting water in the drying box and conveying the water out of the drying box.
Specifically, the rotating support comprises a support 9, a rotating shaft 8 and a motor 7, wherein the motor is matched with the rotating shaft through a transmission mechanism to drive the support to rotate, and the support is of a frame type supporting structure;
the frame-type bracket can conveniently filter water of the fire hose in the cleaning process, and water flow can smoothly flow out of the bracket during spin-drying and washing; in addition, during secondary drying, the contact area of the air flow and the fire hose can be increased, and the shielding of the fire hose is reduced.
It can be understood that the plurality of spray heads can wash the fire-fighting water belt from a plurality of directions, so that the cleaning capability of the fire-fighting water belt is improved; the bottom of the drying box is an inclined bottom surface, so that water flow can be collected conveniently, and a water collecting pipe is butted at the lowest position to discharge the water flow to the outside;
the number of the rotary supports can be selected according to the number of fire hoses to be dried in the same batch, and the specific number is not specially limited;
it should be noted that the motor 7 is a variable frequency motor, and can adjust the rotating speed of the rotating shaft and the bracket, and reduce the rotating speed during cleaning, so that the water flow can fully clean the waterproof band; when the drying is carried out, the rotating speed is increased, and the water discharging capacity is improved; when drying, turn down its rotational speed once more, make things convenient for the air current and fire hose surface abundant contact, improve drying efficiency.
At the inside rotation support that sets up of drying, realize the washing to the waterproof area through the normal running fit shower nozzle, adjust slew velocity and can also realize spin-drying, realize preliminary drying to the waterproof area, the circulation wind of cooperation circulation drying device output carries out the secondary drying, and then realizes the abundant drying to the waterproof area.
Example 3
In still another exemplary embodiment of the present disclosure, as shown in fig. 1, a fire hose drying method is provided, which uses the fire hose drying device according to embodiment 2.
The nozzle sprays water to the fire hose rotating at a low speed on the rotating bracket until the water spraying is stopped after the cleaning is finished;
the rotating bracket rotates at a high speed to realize the preliminary drying of the fire hose;
starting a circulating drying device, starting an evaporator outside a pipeline to cooperate with a condenser to form a heat pump system, preheating in the pipeline, and switching on the evaporator inside the pipeline to form the heat pump system to operate after the environment in the pipeline reaches the required temperature and humidity;
inputting high-temperature and low-humidity airflow in the pipeline into the drying box through the second end by a fan;
the air flow passes through the drying box to carry out secondary drying on the fire hose rotating at a low speed by the rotating bracket, and the generated low-temperature and high-humidity air flow is input into the circulating drying device through the first end to be heated and dehumidified;
until the fire hose is dried to the desired degree.
Specifically, in this embodiment, after the circulation drying device is turned on, the refrigerant passes through the second evaporator to raise the temperature of the air in the pipeline; when the temperature in the pipeline reaches 52 ℃, the refrigerant does not pass through the second evaporator any more and passes through the first evaporator, so that the purposes of cooling and dehumidifying are achieved.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.

Claims (8)

1. A circulation drying device is characterized by comprising a pipeline, wherein an evaporator, a condenser and a fan are sequentially arranged in the pipeline from a first end to a second end, at least one evaporator is respectively arranged in the pipeline and outside the pipeline, the condenser is matched with a compressor, an expansion valve and all evaporators to form a heat pump system, the evaporators in the pipeline and outside the pipeline are connected into the condenser through different expansion valves, and the evaporator in the pipeline and the evaporator outside the pipeline do not operate at the same time; the evaporator is arranged in a plurality of numbers, at least two first evaporators are arranged in the pipeline, the first evaporators are respectively connected to the condenser through different expansion valves, and the multistage condensation of the airflow in the pipeline is realized by matching with the condenser; at least two second evaporators are arranged outside the pipeline, the second evaporators are respectively connected to the condenser through different expansion valves, and the multistage preheating of airflow in the pipeline is realized by matching with the condenser;
the initial air quantity is large, the humidity is quickly reduced, the later air quantity is small, and the full drying is realized;
the evaporator from the first end to the inside of the pipeline is a first section, the evaporator from the inside of the pipeline to the condenser is a second section, a cross structure is formed between the first section and the second section, and a heat recoverer is arranged at the cross position and used for indirectly exchanging heat between media in the first section and the second section;
the evaporator in the pipeline is matched with a condensate tray, and the condensate tray is matched with a water pipe and used for discharging the condensate carried by the condensate tray out of the pipeline.
2. The circulation drying apparatus as claimed in claim 1, wherein a thermometer and a hygrometer are provided at the inlet and outlet positions of the corresponding evaporators in the first and second sections of the pipes, and a thermometer and a hygrometer are also provided between the condenser and the fan.
3. The circulation drying device of claim 1, wherein 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 the refrigerant.
4. A fire hose drying system comprising a drying box and a circulation drying device as claimed in any one of claims 1 to 3, wherein the first and second ends of the pipe communicate with the drying box, respectively.
5. A fire hose drying system as claimed in claim 4, wherein at least one rotating bracket is provided in the drying box for carrying and rotating the fire hose at different speeds.
6. A fire hose drying system as claimed in claim 5, wherein a spray head is provided in the drying box, the spray head being disposed towards the rotating bracket carrying structure for spraying water to wash the fire hose; the bottom of the drying box is matched with a water collecting pipe which is used for collecting water in the drying box and conveying the water out of the drying box.
7. A fire hose drying method characterized by using the fire hose drying system according to claim 6, comprising the steps of:
the nozzle sprays water to the fire hose rotating at a low speed on the rotating bracket until the water spraying is stopped after the cleaning is finished;
the rotating bracket rotates at a high speed to realize the preliminary drying of the fire hose;
starting the circulating drying device, and inputting high-temperature and low-humidity airflow in the pipeline into the drying box through a second end by using the fan;
the air flow passes through the drying box to carry out secondary drying on the fire hose rotating at a low speed by the rotating bracket, and the generated low-temperature and high-humidity air flow is input into the circulating drying device through the first end to be heated and dehumidified;
until the fire hose is dried to the desired degree.
8. The fire hose drying method of claim 7, wherein when the circulation drying device is started, the evaporator outside the pipeline is started to cooperate with the condenser to form a heat pump system, the preheating inside the pipeline is performed, and after the environment inside the pipeline reaches the required temperature and humidity, the condenser is switched on to form the heat pump system to operate.
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LU500054A LU500054B1 (en) 2020-05-28 2020-09-25 Circulation drying device, and fire hose drying system and method

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