WO2017020405A1 - 干燥过滤装置 - Google Patents

干燥过滤装置 Download PDF

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Publication number
WO2017020405A1
WO2017020405A1 PCT/CN2015/089947 CN2015089947W WO2017020405A1 WO 2017020405 A1 WO2017020405 A1 WO 2017020405A1 CN 2015089947 W CN2015089947 W CN 2015089947W WO 2017020405 A1 WO2017020405 A1 WO 2017020405A1
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WIPO (PCT)
Prior art keywords
cavity
upper cover
compressed air
dry
inlet
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PCT/CN2015/089947
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English (en)
French (fr)
Inventor
郭应辉
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深圳市贝腾科技有限公司
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Application filed by 深圳市贝腾科技有限公司 filed Critical 深圳市贝腾科技有限公司
Priority to US15/743,186 priority Critical patent/US10512882B2/en
Publication of WO2017020405A1 publication Critical patent/WO2017020405A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0006—Coils or serpentines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/009—Collecting, removing and/or treatment of the condensate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/80—Water

Definitions

  • the invention relates to the field of air drying, and in particular to a dry filtering device applied in the field of compressed air.
  • Air compression usually contains a large amount of water and saturated water vapor.
  • the existing freeze dryer is dried by introducing compressed air into a drying pipe in a freeze dryer, and the drying pipe is in contact with the cooling pipe to exchange heat between the compressed air in the drying pipe and the cooling pipe, so that the compressed air is in the compressed air.
  • the saturated water vapor condenses into water, and the condensed water is filtered through a filtering device.
  • the drying method has low efficiency, poor drying effect, and high energy consumption, and a filtering device is additionally required to filter the condensed water.
  • the object of the present invention is to solve the technical problem that the prior art refrigerating dryer has low efficiency, large drying effect, high energy consumption and special filtering device to filter the moisture after coagulation, and proposes a high drying efficiency and good drying effect.
  • a dry filtration device that is low in energy consumption and can simultaneously filter the moisture after condensation.
  • the present invention provides a dry filtering device for drying and filtering compressed air, the dry filtering device comprising a casing, an upper cover disposed at a top end of the casing, a lower cover disposed at a bottom end of the casing, and a casing disposed at the casing
  • the inner cooling pipe one side of the upper cover is provided with an air flow inlet
  • the other side of the upper cover is provided with an air flow outlet
  • the lower cover is provided with a water outlet
  • the outer casing has a cavity therein
  • the air is a cavity is respectively in communication with the airflow inlet, the airflow outlet, the drain port
  • the cooling tube is located in the cavity
  • the cooling tube extends downward from a position close to the upper cover to the lower a cover
  • the compressed air enters the cavity from the airflow inlet of the upper cover, and is in contact with the cooling pipe, the temperature of the compressed air is lowered, and the saturated water vapor in the compressed air is condensed into a liquid state
  • the water
  • the cooling tube is wound into a cylindrical spiral tube, the cylindrical spiral tube has an inner cavity, and a steel mesh is placed in the inner cavity, and the compressed air is uniformly diffused through the steel mesh.
  • the upper cover is provided with an air inlet cavity for communicating the cavity and the airflow inlet, and the upper cover is further provided with a space for connecting the cavity and the airflow outlet.
  • the lower cover is further provided with a liquid storage chamber, the liquid storage chamber is located directly below the cylindrical spiral tube, and the water discharge port is located below the liquid storage chamber.
  • an upper end of the steel mesh extends into the gas inlet chamber, and a lower end of the steel mesh extends into the liquid storage chamber.
  • a drain valve is provided at the drain port, and the drain valve is used to periodically discharge liquid water of the liquid storage chamber.
  • the outer periphery of the cooling tube is covered with a filter core
  • the filter core is tubular and the filter core surrounds the cooling tube
  • the surface of the filter core is provided with an opening.
  • the lower cover is further provided with a first interface cavity for accommodating the inlet end of the cooling pipe and a second interface cavity for accommodating the outlet end of the cooling pipe, for external use of the coolant input
  • An inlet conduit is connected to the inlet end of the cooling tube through the first interface chamber, and an external drain conduit for the output of the coolant is connected to the outlet end of the cooling tube through the second interface chamber.
  • the first interface cavity and the second interface cavity are disposed on both sides of the drain port.
  • the upper cover and the lower cover are detachably connected to the outer casing.
  • the present invention has the following beneficial effects:
  • the dry filtering device of the present invention comprises a casing, an upper cover, a lower cover and a cooling pipe disposed in the cavity of the casing, and the compressed air enters into the cavity of the casing through the airflow inlet on the upper cover and contacts the cooling pipe in the cavity And condensing the saturated water vapor in the compressed air into liquid water, which falls under gravity to the lower cover and is discharged through the drain port on the lower cover, and the compressed air dried by the cooling pipe passes through The air outlet of the cover flows out, and the compressed air of the dry filter device of the present invention directly contacts the cooling pipe, which has good cooling effect, high drying efficiency, low energy consumption, and can simultaneously filter the moisture after condensation.
  • Figure 1 is a schematic view showing the structure of a dry filtering device of the present invention in a first embodiment.
  • FIG. 2 is a schematic view showing the structure of a dry filtering device of the present invention in a second embodiment.
  • Figure 3 is a schematic view showing the structure of a dry filtering device of the present invention in a third embodiment.
  • the present invention provides a dry filtration device that is primarily used for drying and filtering compressed air, and is particularly suitable for filtering saturated water vapor in high temperature compressed air.
  • Dry filter device 1 includes a housing 10, an upper cover 20 disposed at a top end of the housing 10, a lower cover 30 disposed at a bottom end of the housing 10, and a cooling tube 40 disposed within the housing 10, the housing 10 having a cavity 11 therein, the cooling tube 40 being disposed In the cavity 11, the cooling tube 40 extends downward from the position near the upper cover 20 to the lower cover 30.
  • the cooling tube 40 is wound into a cylindrical spiral tube having an inner cavity 44.
  • the upper cover 20 is provided with an air flow inlet 21 on one side and an air flow outlet 22 on the other side, and the air flow inlet 21 and the air flow outlet 22 are both in communication with the cavity 11.
  • the upper cover 20 is further provided with an air inlet chamber 23 for communicating the cavity 11 of the outer casing 10 with the airflow inlet 21.
  • the upper cover 20 is provided with an airflow outlet 24 for communicating with the outer casing 10.
  • the chamber 11 is connected to the air outlet 22.
  • the cylindrical spiral tube is disposed at an intermediate position of the cavity 11, and the inner cavity 44 of the cylindrical spiral tube is in parallel communication with the gas flow inlet chamber 23.
  • the lower cover 30 is provided with a liquid storage chamber 34 communicating with the cavity 11, and the liquid storage chamber 34 is located directly below the cylindrical spiral tube, and a drain port 31 is provided below the liquid storage chamber 34.
  • the drain port 31 communicates with the cavity 11 through the reservoir chamber 34.
  • a drain valve is also provided at the drain port 31 for periodically discharging the liquid water stored in the reservoir chamber 34.
  • the drain valve may be disposed on the lower cover 30 or on an external connection pipe connected to the drain port 31.
  • a first interface chamber 32 for receiving the inlet end 41 of the cooling tube 40 and a second interface chamber 33 for receiving the outlet end 42 of the cooling tube 40 are provided on both sides of the drain port 31.
  • the inlet end 41 and the outlet end 42 of the cooling tube 40 extend directly from the cavity 11 through the openings 35 on both sides of the reservoir chamber 34 into the first interface chamber 32 and the second interface chamber 33 for cooling fluid input.
  • the external inlet conduit is connected to the inlet end 41 of the cooling tube 40 through a first interface chamber 32, and the external drain conduit for coolant output is connected to the outlet end 42 of the cooling tube 40 via a second interface chamber 33.
  • the coolant may be refrigerant, cooling water or cold air.
  • the cooling tube 40 is located in the cavity 11 of the outer casing 10 and is located between the upper cover 20 and the lower cover 30.
  • the compressed air enters the cavity 11 of the outer casing 10 from the airflow inlet 21 of the upper cover 20 and is in contact with the cooling pipe 40.
  • the temperature of the compressed air is lowered, so that the saturated water vapor in the compressed air is condensed into liquid water and discharged through the drain port 31 by gravity, and the dried compressed gas flows out from the gas outlet port 22.
  • top of the dry filter device 1 is further provided with a differential pressure gauge 50 for monitoring the internal pressure of the dry filter device 1.
  • the upper cover 20 and the lower cover 30 are detachably mounted on the outer casing 10. Specifically, the upper cover 20 or the lower cover 30 may be coupled to the outer casing 10 by bolts or tie rods.
  • the upper cover 20, the lower cover 30, and the outer casing 10 may be integrally formed.
  • FIG. 2 it is a schematic structural view of the dry filtering device of the present invention in the second embodiment.
  • the dry filter device 2 in this embodiment is similar in structure to the dry filter device 1 in the first embodiment, except that the dry filter device 2 A steel mesh is provided more than the dry filter device 1.
  • the following points are mainly described below, and other structures are the same as those of the previous embodiment, and will not be repeated here, and the same structures are denoted by the same reference numerals.
  • the cooling tube 40 of the dry filter device 2 is wound into a cylindrical spiral tube having an inner cavity 44 in which a steel mesh 60 is placed.
  • the upper end of the stencil 60 extends into the air inlet chamber 23, and the lower end thereof extends into the liquid storage chamber 34, so that compressed air is uniformly diffused from the air inlet 21 of the upper cover 20, and the compressed air is uniformly diffused through the stencil 60.
  • Flowing downward and allowing most of the gas to enter the inner cavity 44 of the cylindrical spiral tube formed by the cooling tube 40 so that the compressed air can be in full contact with the cooling tube 40, thereby causing the saturated water vapor in the compressed air to condense into liquid water, liquid
  • the water is collected by the gravity in the liquid storage chamber 34 and discharged through the water discharge port 31.
  • the stencil 60 is a stainless steel mesh.
  • the steel mesh 60 is disposed in the inner cavity 44 of the cooling pipe 40, but is not limited thereto, and a steel mesh may be disposed on the outer periphery of the cooling pipe 40, or in the cooling pipe 40.
  • a steel mesh is disposed simultaneously with the inner cavity 44 and the outer periphery.
  • FIG. 3 it is a schematic structural view of the dry filtering device of the present invention in the third embodiment.
  • the dry filter device 3 in this embodiment is similar in structure to the dry filter device 1 in the first embodiment, and the main difference is that the dry filter device 3 is provided with a filter core more than the dry filter device 1, and the following points are mainly described.
  • Other structures are the same as those in the first embodiment, and are not described again here, and the same structures are denoted by the same reference numerals.
  • the cooling tube 40 of the dry filter device 3 is wound into a cylindrical spiral tube, and a filter core 70 is disposed on the outer periphery of the cylindrical spiral tube.
  • the filter core 70 may be a stainless steel filter core or a PP (polyproylene) cotton filter core.
  • the filter element 70 is tubular and has an opening in its surface. The upper port of the filter core 70 extends into the airflow inlet chamber 23 of the upper cover 20, and the lower port thereof extends into the liquid storage chamber 34 of the lower cover 30, and the compressed air entering from the airflow inlet chamber 23 is guided to the filter core 70. In the lumen.
  • the cooling tube 40 is sleeved in the filter core 70 such that the filter core 70 surrounds the cooling tube 40, whereby the filter core 70 temporarily blocks the compressed air entering from the airflow inlet chamber 23 in the filter core 70, so that the compressed air It can be in full contact with the cooling pipe 40, thereby causing the saturated water vapor in the compressed air to condense into liquid water.
  • the liquid water is condensed on the filter core 70 and collected by the gravity in the liquid storage chamber 34 and discharged through the drain port 31.
  • the cooling tube 40 extends into the reservoir chamber 34, and its inlet end 41 and outlet end 42 extend from the reservoir chamber 34 to the first interface chamber 32 of the lower cover 30, respectively.
  • the inlet end 41 and the outlet end 42 of the cooling tube 40 extend directly from the cavity 11 of the outer casing 10 into the first interface chamber 32 of the lower cover 30 and into the second interface chamber 33. Therefore, because the cooling tube 40 extends in the first interface cavity 32 and the second interface cavity 33, the lower cover structure in this embodiment has a slight difference from the lower cover structure of the first embodiment, that is, in the cooling tube.
  • the first interface cavity and the second interface cavity are communicated with the cavity of the outer casing through the liquid storage cavity, and the first interface cavity and the second interface cavity of the first embodiment are empty through the opening on both sides of the liquid storage cavity and the outer casing
  • the cavities are connected.
  • the dry filtering device of the present invention comprises a casing, an upper cover, a lower cover and a cooling pipe disposed in the cavity of the casing, and the compressed air enters into the cavity of the casing through the airflow inlet on the upper cover and contacts the cooling pipe in the cavity And condensing the saturated water vapor in the compressed air into liquid water, which falls under the action of gravity to the lower cover, and is discharged through the drain port on the lower cover, and the compressed air is dried and filtered through the cooling pipe.
  • the compressed air of the dry filter device of the present invention directly contacts the cooling pipe through the air outlet of the upper cover, which has good cooling effect, high drying efficiency and low energy consumption, and can simultaneously filter the condensed moisture to filter the dry filter device.
  • the dry filter device of the present invention is a dry filter device having a simple structure, which is not as complicated as the existing freeze dryer and consumes a certain amount of electric energy during operation, and the dry filter device of the present invention consumes very low energy. That is, when the dry filter device of the present invention is used, if there is a coolant in the periphery, the coolant can be directly connected to the cooling pipe of the dry filter device, and the use is very convenient and environmentally friendly.
  • the dry filter device of the present invention can uniformly diffuse the compressed air by adding a steel mesh in the inner cavity of the condensing pipe, and fully contact with the cooling pipe, thereby achieving better drying and filtering effects.
  • the dry filter device of the present invention can make the compressed air sufficiently contact with the cooling pipe by covering a filter core at the outer periphery of the condensing pipe, thereby further achieving better drying and filtering effects.

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  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
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Abstract

一种干燥过滤装置，用于干燥和过滤压缩空气，干燥过滤装置（1）包括外壳（10）、设置在外壳（10）顶端的上盖（20）、设置在外壳（10）底端的下盖（30）以及设置在外壳（10）内的冷却管（40），上盖（20）的一侧设有气流入口（21），上盖（20）的另一侧设有气流出口（22），下盖（30）设有排水口（31），外壳（10）内具有一空腔（11），空腔（11）分别与气流入口（21）、气流出口（22）、排水口（31）相连通，冷却管（40）位于空腔（11）内且冷却管（40）从靠近上盖（20）的位置向下延伸至下盖（30），压缩空气从上盖（20）的气流入口（21）进入空腔（11）中，并与冷却管（40）接触，压缩空气的温度降低，且压缩空气中的饱和水蒸汽凝结成液态水并在重力的作用下经排水口（31）排出，干燥后的压缩气体从气流出口（22）流出。

Description

干燥过滤装置 技术领域
本发明涉及空气干燥领域，尤其涉及一种应用在压缩空气领域的干燥过滤装置。
背景技术
空气压缩后通常含有大量的水分和饱和水蒸汽，目前，主要通过冷冻式干燥机去除压缩空气中的水分和饱和水蒸汽。现有的冷冻干燥机的干燥方式是：将压缩空气通入冷冻干燥机中的干燥管道，干燥管道与冷却管接触，使干燥管道中的压缩空气与冷却管进行热交换，使得压缩空气中的饱和水蒸汽凝结成水，凝结后的水再通过过滤装置滤除，然而，此种干燥方式效率低，干燥效果差且能耗大，并且还需专门加设过滤装置过滤凝结后的水分。
发明内容
本发明的目的在于解决现有技术中的冷冻式干燥机效率低、干燥效果、能耗大且需专门加设过滤装置过滤凝结后的水分的技术问题而提出一种干燥效率高、干燥效果好、低能耗且能同时过滤凝结后的水分的干燥过滤装置。
本发明提出一种干燥过滤装置，用于干燥和过滤压缩空气，所述干燥过滤装置包括外壳、设置在所述外壳顶端的上盖、设置在所述外壳底端的下盖以及设置在所述外壳内的冷却管，所述上盖的一侧设有气流入口，所述上盖的另一侧设有气流出口，所述下盖设有排水口，所述外壳内具有一空腔，所述空腔分别与所述气流入口、所述气流出口、所述排水口相连通，所述冷却管位于所述空腔内且所述冷却管从靠近所述上盖的位置向下延伸至所述下盖，所述压缩空气从所述上盖的气流入口进入所述空腔中，并与所述冷却管接触，所述压缩空气的温度降低，使所述压缩空气中的饱和水蒸汽凝结成液态水并在重力的作用下经所述排水口排出，干燥后的压缩气体从所述气流出口流出。
所述的干燥过滤装置，所述冷却管缠绕成圆柱螺旋管，所述圆柱螺旋管具有一内腔，所述内腔中放置一钢网，所述压缩空气通过所述钢网均匀扩散。
所述的干燥过滤装置，所述上盖上设有用于连通所述空腔与所述气流入口的气流进口腔，所述上盖上还设有用于连通所述空腔与所述气流出口的气流出口腔,所述圆柱螺旋管位于所述空腔的中间位置，所述圆柱螺旋管的内腔与所述气流进口腔相对齐连通，所述空腔与所述气流出口腔相连通。
所述的干燥过滤装置，所述下盖上还设有储液腔，所述储液腔位于所述圆柱螺旋管的正下方，所述排水口位于所述储液腔的下方。
所述的干燥过滤装置，所述钢网的上端伸入所述气流进口腔内，所述钢网的下端伸入至所述储液腔中。
所述的干燥过滤装置，所述排水口处设有排水阀，所述排水阀用于定时将所述储液腔的液态水排出。
所述的干燥过滤装置，所述冷却管的外周边罩有一过滤芯，所述过滤芯呈管状且所述过滤芯包围所述冷却管，所述过滤芯的表面设有开孔。
所述的干燥过滤装置，所述下盖上还设有用于容纳所述冷却管的进口端的第一接口腔和用于容纳所述冷却管出口端的第二接口腔，用于冷却液输入的外部进液管道通过所述第一接口腔连接至所述冷却管的进口端，用于冷却液的输出的外部排液管道通过所述第二接口腔连接至所述冷却管的出口端。
所述的干燥过滤装置，所述第一接口腔和所述第二接口腔设置在所述排水口的两侧。
所述的干燥过滤装置，所述上盖、所述下盖以可拆卸的方式连接在所述外壳上。
与现有技术相比，本发明具有如下有益效果：
本发明的干燥过滤装置包括外壳、上盖、下盖以及设置在外壳空腔中的冷却管，压缩空气通过上盖上的气流入口进入至外壳的空腔中，并与空腔中冷却管接触，进而将压缩空气中的饱和水蒸汽凝结成液态水，该液态水在重力的作用下下落至下盖上，并经下盖上的排水口排出，而经冷却管干燥后的压缩空气通过上盖的气流出口流出，本发明的干燥过滤装置的压缩空气直接与冷却管接触，该冷却效果好、干燥效率高、能耗低且能同时过滤凝结后的水分。
附图说明
图1为本发明干燥过滤装置在第一实施例中的结构示意图。
图2为本发明干燥过滤装置在第二实施例中的结构示意图。
图3为本发明干燥过滤装置在第三实施例中的结构示意图。
具体实施方式
为了进一步说明本发明的原理和结构，现结合附图对本发明的优选实施例进行详细说明。
本发明提供一种干燥过滤装置，该干燥过滤装置主要用于干燥和过滤压缩空气，特别适合用于过滤高温压缩空气中的饱和水蒸汽。
如图1所示，其为本发明干燥过滤装置在第一实施例中的结构示意图。该干燥过滤装置 1包括外壳10、设置在外壳10顶端的上盖20、设置在外壳10底端的下盖30以及设置在外壳10内的冷却管40，该外壳10内具有一空腔11，该冷却管40设置在该空腔11中，且该冷却管40从靠近上盖20的位置向下延伸至下盖30。
该冷却管40缠绕成圆柱螺旋管，该圆柱螺旋管具有一内腔44。
该上盖20的一侧设有气流入口21，其另一侧设有气流出口22，该气流入口21和气流出口22均与空腔11相连通。该上盖20还设有气流进口腔23，其用于连通外壳10的空腔11与气流入口21，相应的，该上盖20上设有气流出口腔24，其用于连通外壳10的空腔11与气流出口22。圆柱螺旋管设置在空腔11的中间位置，圆柱螺旋管的内腔44与气流进口腔23相对齐连通。
下盖30上设有与空腔11相连通的储液腔34，该储液腔34位于圆柱螺旋管的正下方，在该储液腔34的下方设有排水口31。排水口31通过储液腔34与空腔11相连通。在该排水口31处还设有排水阀，该排水阀用于定时将储存在储液腔34的液态水排出。该排水阀可设置在该下盖30上，也可设置在连接至排水口31处的外部连接管上。
在排水口31的两侧设有用于容纳冷却管40的进口端41的第一接口腔32和用于容纳冷却管40的出口端42的第二接口腔33。冷却管40的进口端41和出口端42直接从空腔11中分别通过储液腔34两侧的开口35伸入至第一接口腔32和第二接口腔33中，使得用于冷却液输入的外部进液管道通过第一接口腔32连接至冷却管40的进口端41，用于冷却液输出的外部排液管道通过第二接口腔33连接至冷却管40的出口端42。其中，该冷却液可以是冷媒、冷却水或冷空气。
冷却管40位于外壳10的空腔11中，且位于上盖20与下盖30之间，压缩空气从上盖20的气流入口21进入外壳10的空腔11中，并与冷却管40接触，压缩空气的温度降低，使压缩空气中的饱和水蒸汽凝结成液态水并在重力的作用下经排水口31排出，干燥后的压缩气体从气流出口22流出。
此外，该干燥过滤装置1的顶部还设置有用于监测干燥过滤装置1内部压力的压差表50。
上述上盖20和下盖30通过可拆卸的方式安装在外壳10上，具体的，该上盖20或下盖30可通过螺栓或拉杆连接在外壳10上。
此外，该上盖20、下盖30以及外壳10也可一体成型。
如图2所示，其为本发明干燥过滤装置在第二实施例中的结构示意图。该实施例中的干燥过滤装置2与第一实施例中的干燥过滤装置1结构相似，其区别在于该干燥过滤装置2 比干燥过滤装置1多设置了一个钢网，以下重点说明该区别点，而其他结构与上一实施例相同，在此不再一一赘述，且相同结构采用相同的附图标记。
该干燥过滤装置2的冷却管40缠绕成圆柱螺旋管，圆柱螺旋管具有一内腔44，在该内腔44中放置一钢网60。该钢网60的上端伸入气流进口腔23内，其下端伸入至储液腔34中，使得压缩空气从上盖20的气流入口21进入后，通过该钢网60均匀扩散并引导压缩空气向下流动并使大部分气体进入冷却管40所形成的圆柱螺旋管的内腔44中，使得压缩空气能与冷却管40充分接触，进而使得压缩空气中的饱和水蒸汽凝结成液态水，液态水在重力的作用下，汇集在储液腔34中，并通过排水口31排出。
该钢网60为不锈钢网。
此外，在该实施例中，将钢网60设置在冷却管40的内腔44中，但并不限于此，也可在该冷却管40的外周边设置一钢网，或者在冷却管40的内腔44和外周边同时设置一钢网。
如图3所示，其为本发明干燥过滤装置在第三实施例中的结构示意图。该实施例中的干燥过滤装置3与第一实施例中的干燥过滤装置1结构相似，其主要区别在于该干燥过滤装置3比干燥过滤装置1多设置了一个过滤芯，以下重点说明该区别点，而其他结构与第一实施例相同，在此不再一一赘述，且相同结构采用相同的附图标记。
该干燥过滤装置3的冷却管40缠绕成圆柱螺旋管，在该圆柱螺旋管的外周边罩一过滤芯70，该过滤芯70可为不锈钢过滤芯或PP(polyproylene)棉过滤芯。该过滤芯70呈管状且其表面设有开孔。该过滤芯70的上端口伸入至上盖20的气流进口腔23中，其下端口伸入至下盖30的储液腔34中，将从气流进口腔23进入的压缩空气引导至过滤芯70的内腔中。该冷却管40套设在过滤芯70中，使得过滤芯70包围该冷却管40，藉此，过滤芯70将从气流进口腔23进入的压缩空气暂时阻挡在该过滤芯70内，使得压缩空气能与冷却管40充分接触，进而使得压缩空气中的饱和水蒸汽凝结成液态水。该液态水凝聚在该过滤芯70上并在重力的作用下，汇集在储液腔34中，并通过排水口31排出。
此外，在本实施例中，该冷却管40延伸至储液腔34中，且其进口端41和出口端42分别从储液腔34中延伸至下盖30的第一接口腔32中和第二接口腔33中。而在第一实施例中，冷却管40的进口端41和出口端42是直接从外壳10的空腔11中延伸至下盖30的第一接口腔32中和第二接口腔33中。因此，因冷却管40延伸第一接口腔32中和第二接口腔33中的方式不同，本实施例中的下盖结构与第一实施例的下盖结构存在细微的差别，即在冷却管的进口端和出口端未接入至第一接口腔中和第二接口腔中之前，本实施例中的 第一接口腔和第二接口腔是通过储液腔与外壳的空腔相连通，而第一实施例的第一接口腔和第二接口腔是通过储液腔两侧的开口与外壳的空腔相连通。虽然本实施例的下盖结构与第一实施例的下盖结构存在细微的差别，但两者都是为了实现相同的功能，即将冷却管的进口端和出口端接入至第一接口腔中和第二接口腔中，故该细微的变化是属于运用本发明说明书及附图内容所做出的等效结构变化，包含在本发明的保护范围内。
本发明的干燥过滤装置包括外壳、上盖、下盖以及设置在外壳空腔中的冷却管，压缩空气通过上盖上的气流入口进入至外壳的空腔中，并与空腔中冷却管接触，进而将压缩空气中的饱和水蒸汽凝结成液态水，该液态水在重力的作用下下落至下盖上，并经下盖上的排水口排出，而经冷却管干燥和过滤后的压缩空气通过上盖的气流出口流出，本发明的干燥过滤装置的压缩空气直接与冷却管接触，该冷却效果好、干燥效率高且能耗低并且能同时将凝结的水分滤除干燥过滤装置。
此外，本发明的干燥过滤装置是一种结构简单的干燥过滤装置，其并不像现有的冷冻干燥机结构复杂且工作时需消耗一定的电能，本发明的干燥过滤装置能耗非常低，即，本发明的干燥过滤装置在使用时，周边若有冷却液，则该冷却液可以直接接入到该干燥过滤装置的冷却管中，使用十分方便环保。
此外，本发明的干燥过滤装置通过在冷凝管的内腔中增加一钢网，使得压缩空气能均匀扩散，并与冷却管充分接触，进而达到更好的干燥、过滤效果。
此外，本发明的干燥过滤装置通过在冷凝管的外周边罩一过滤芯，使得压缩空气能与冷却管充分接触，进一步达到更好的干燥、过滤效果。
以上仅为本发明的较佳可行实施例，并非限制本发明的保护范围，凡运用本发明说明书及附图内容所做出的等效结构变化，均包含在本发明的保护范围内。

Claims (10)

  1. 一种干燥过滤装置，用于干燥和过滤压缩空气，其特征在于，所述干燥过滤装置包括外壳、设置在所述外壳顶端的上盖、设置在所述外壳底端的下盖以及设置在所述外壳内的冷却管，所述上盖的一侧设有气流入口，所述上盖的另一侧设有气流出口，所述下盖设有排水口，所述外壳内具有一空腔，所述空腔分别与所述气流入口、所述气流出口、所述排水口相连通，所述冷却管位于所述空腔内且所述冷却管从靠近所述上盖的位置向下延伸至所述下盖，所述压缩空气从所述上盖的气流入口进入所述空腔中，并与所述冷却管接触，所述压缩空气的温度降低，使所述压缩空气中的饱和水蒸汽凝结成液态水并在重力的作用下经所述排水口排出，干燥后的压缩气体从所述气流出口流出。
  2. 根据权利要求1所述的干燥过滤装置，其特征在于，所述冷却管缠绕成圆柱螺旋管，所述圆柱螺旋管具有一内腔，所述内腔中放置一钢网，所述压缩空气通过所述钢网均匀扩散。
  3. 根据权利要求2所述的干燥过滤装置，其特征在于，所述上盖上设有用于连通所述空腔与所述气流入口的气流进口腔，所述上盖上还设有用于连通所述空腔与所述气流出口的气流出口腔,所述圆柱螺旋管位于所述空腔的中间位置，所述圆柱螺旋管的内腔与所述气流进口腔相对齐连通，所述空腔与所述气流出口腔相连通。
  4. 根据权利要求3所述的干燥过滤装置，其特征在于，所述下盖上还设有储液腔，所述储液腔位于所述圆柱螺旋管的正下方，所述排水口位于所述储液腔的下方。
  5. 根据权利要求4所述的干燥过滤装置，其特征在于，所述钢网的上端伸入所述气流进口腔内，所述钢网的下端伸入至所述储液腔中。
  6. 根据权利要求4所述的干燥过滤装置，其特征在于，所述排水口处设有排水阀，所述排水阀用于定时将所述储液腔的液态水排出。
  7. 根据权利要求1或2所述的干燥过滤装置，其特征在于，所述冷却管的外周边罩有一过滤芯，所述过滤芯呈管状且所述过滤芯包围所述冷却管，所述过滤芯的表面设有开孔。
  8. 根据权利要求1所述的干燥过滤装置，其特征在于，所述下盖上还设有用于容纳所述冷却管的进口端的第一接口腔和用于容纳所述冷却管出口端的第二接口腔，用于冷却液输入的外部进液管道通过所述第一接口腔连接至所述冷却管的进口端，用于冷却液的输出的外部排液管道通过所述第二接口腔连接至所述冷却管的出口端。
  9. 根据权利要求8所述的干燥过滤装置，其特征在于，所述第一接口腔和所述第二 接口腔设置在所述排水口的两侧。
  10. 根据权利要求1所述的干燥过滤装置，其特征在于，所述上盖、所述下盖以可拆卸的方式连接在所述外壳上。
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