CN109453623B - Compact structure's vibration prevention drying vessel - Google Patents
Compact structure's vibration prevention drying vessel Download PDFInfo
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- CN109453623B CN109453623B CN201811524373.3A CN201811524373A CN109453623B CN 109453623 B CN109453623 B CN 109453623B CN 201811524373 A CN201811524373 A CN 201811524373A CN 109453623 B CN109453623 B CN 109453623B
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- 238000001035 drying Methods 0.000 title claims abstract description 104
- 230000002265 prevention Effects 0.000 title description 2
- 230000007704 transition Effects 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000004581 coalescence Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 238000007605 air drying Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000002274 desiccant Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- B01D53/266—Drying gases or vapours by filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/16—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Solid Materials (AREA)
- Drying Of Gases (AREA)
Abstract
The invention relates to the field of air drying devices, and discloses an anti-vibration drying tank with a compact structure, which comprises a drying shell (33), a coalescing filter (35), and a tank body (30), wherein a heat exchange channel (36) is formed by surrounding the outer side wall of the drying shell and the inner side wall of the tank body (30), and air flows sequentially pass through an air inlet (31), the heat exchange channel (36), the coalescing filter (35) and a drying cavity (34) to be discharged from an air outlet (32); the drying shell (33) comprises a first shell (37) at the lower part and a second shell (38) positioned above the first shell (37), the inner diameter of the second shell (38) is smaller than that of the first shell (37), a connecting plate used for connecting the first shell (37) and the second shell (38) is a transition plate (39), the coalescing filter (35) is positioned above the transition plate, and the coalescing filter is sleeved outside the second shell. The drying tank has the advantages of low cost of the check valve, suitability for various installation spaces, no oscillation system, long service life, low cost, small volume and the like.
Description
Technical Field
The invention relates to the field of vehicle compressed air drying and cleaning devices, in particular to an anti-vibration drying tank with a compact structure.
Background
The patent application publication US20080289505A5 and the grant publication EP1495934B1 disclose an air dryer of the type which represents a prior art air dryer cartridge for most of the global vehicle market, the specific construction of which is shown in fig. 1. Such an air drying cylinder has the following drawbacks.
First, the air system is supplied by an air compressor. During compression, the compressed air is contaminated with oil droplets and hard carbon particles. Moisture in the air may also condense and form water droplets. These water droplets may form an emulsion with the oil droplets. All of the above-mentioned contaminations are harmful to the components of the vehicle air system and must therefore be filtered out before the compressed air enters the vehicle air system. In the prior art solution, compressed air enters the cartridge through the inlet 1 at the bottom and immediately meets the filter system 2. The filter 2 is made of a coalescing material. The disadvantage of this solution is that the filter 2 has to block all solid and liquid particles and that the solid particles continuously reduce the effective flow area of the filter 2, reducing the drying efficiency of the dryer.
Second, the oil separates from the compressed air before it enters the desiccant material 7, as the oil can destroy the pores of the desiccant 7. The oil filtration is accomplished by a coalescing filter, in which prior art dryer cylinders the compressed air flows directly through the coalescing filter element 2. The air temperature is high due to compression, and there is also a disadvantage in that the filtering effect of the coalescing filter element decreases with increasing temperature. The coalescing filter element 2 forms macroscopic droplets from small colloidal particle size oil particles, which drain from the filter outflow side. In prior art products, these macroscopic droplets are collected by gravity in the sump region 10. Since gravity is used to collect the oil, it also limits the need for a drying drum installation to be nearly vertical.
Third, coalescing filter element 2 may become clogged with particulates or due to ice formation during filtration. In this case, air delivery is also prevented for the vehicle air system including the brake system. To avoid this dangerous situation, if the pressure before the filter cartridge 2 generates a greater force than the first spring 15 and the first check valve 16 can lift from the bottom plate 17, the inner housing 14 of the prior art product can move upwards, under which compressed air can flow and reach the desiccant material. However, the prior art has the disadvantage that the mass of the moving part filter 2, the inner housing 14 and the desiccant material 18 is about 1 kg, which mass forms an oscillating system with the first spring 15, which system will maintain the overall structural position. The oscillating system has a natural frequency of about 20Hz, well below the usual automotive limit of 90Hz. Because of the low natural frequency, if the external vibrations are in the critical range and separate from the O-ring 19, the inner housing 14 is moved out of its original position. In this way, a bypass channel is opened between the inlet 1 and the outlet, and unfiltered compressed air can flow directly to the vehicle air system, causing component damage. In the event of a filter blockage, the pressure rises through the inner housing 14 until the first check valve 16 separates from the bottom plate 17, at which point the pressure drops suddenly and the first spring 15 will push the housing 14 back to its original position and the entire process repeats again, causing an oscillating movement. During movement, the housing 14 moves and twists the O-ring 19 and typically brakes after a few cycles. Broken O-rings allow unfiltered compressed air to flow directly into the vehicle air system and cause damage to its components.
Fourth, the oil collected in the sump area 10 must be purged after a critical level is reached. In prior art solutions, a first check valve 16 is installed between the inlet 1 and the sump area 10, which sump area 10 can be opened by returning compressed air from the vehicle air system. The collected oil will be discharged to the atmosphere through inlet 1. However, this approach has the following drawbacks, some of which are associated with the position of the first check valve 16: the first check valve 16 is in direct contact with the incoming hot air, so it must be made of a heat resistant material, which makes it more expensive. The O-ring 19 and the first check valve 16 are subjected to the force of the first spring 15, and thus the first check valve 16 is required to be subjected to force, and the manufacturing cost is high. Since the manufacturing tolerance of the first spring 15 has an influence on the opening pressure of the first check valve 16, it is not accurate nor reliable.
Fifth, due to the installation position of the coalescing filter 2, there are two fixed dead spaces in the cartridge, one located at the inlet 1 and the other around the first spring 15. These dead volumes reduce the amount of desiccant material 18 and increase the size of the desiccant cartridge.
The applicant has therefore provided a new type of drying cylinder, in accordance with the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The invention aims at the defects in the prior art and provides an anti-vibration drying tank with a compact structure.
In order to solve the technical problems, the invention is solved by the following technical scheme:
the utility model provides an anti-vibration drying tank with compact structure, includes the jar body, has seted up air inlet and gas outlet on the jar body, is provided with the drying shell in the jar body, is provided with the drying chamber that is used for holding drier in the drying shell, is provided with the coalescing filter that is used for filtering the oil grain on the drying shell, and drying shell lateral wall, coalescing filter lateral wall and jar internal lateral wall enclose into the heat exchange channel, and the air current is discharged from the gas outlet through air inlet, heat exchange channel, coalescing filter, drying chamber in proper order; the drying shell comprises a first shell at the lower part and a second shell arranged above the first shell, wherein the inner diameter of the second shell is smaller than that of the first shell, a connecting plate used for connecting the first shell and the second shell is a transition plate, a coalescing filter is arranged above the transition plate, and the coalescing filter is sleeved outside the second shell. Firstly, the coalescing filter is arranged at the tail end of the heat exchange channel, so that the air flow reaching the coalescing filter is cooled through heat exchange, and the filtering effect of the coalescing filter is better.
Preferably, the coalescing filter comprises an annular coalescing housing and an annular coalescing filter element, the annular coalescing housing is distributed along the outer circumference of the second housing, the coalescing housing is fixedly connected with the drying housing, the lower end of the coalescing housing and the transition plate enclose an oil storage tank, and the coalescing filter comprises a connecting part fixedly connected with the second housing and a mounting part for mounting the coalescing filter element.
Preferably, the coalescing housing is provided with a first one-way valve which is opened when the pressure in the heat exchange channel reaches a specified value, and the air flow in the heat exchange channel enters the drying cavity through the first one-way valve when the first one-way valve is opened, or/and a second one-way valve which is used for controlling the oil storage tank to be communicated with the heat exchange channel is/are arranged. The first check valve can realize the function of safely opening under dangerous conditions, so that the whole drying tank is ensured to be used reliably. The second check valve can be opened when fluid reaches a certain amount, and the opening pressure is stable, and simultaneously the oil storage tank of design is because structural feature, so the mounting form of drying tank is various, need not be limited to the form of vertical installation.
Preferably, the coalescing filter is provided with a first one-way valve, the mounting part comprises a first limiting plate positioned on the upper end face of the coalescing filter element and a second limiting plate supporting the lower end face of the coalescing filter element, the first one-way valve is positioned above the first limiting plate, the first one-way valve is an integrally annular first flexible element, and the upper end of the first flexible element is propped against the inner wall of the heat exchange channel under the action of self elastic force to form a one-way valve for controlling the heat exchange channel to be communicated with the drying cavity. When the air flow pressure in the heat exchange channel is higher than the opening pressure of the first one-way valve, the air flow is blocked by the first one-way valve, and the air flow enters the drying cavity from the first one-way valve, so that the drying tank is ensured to have stable safe opening pressure.
Preferably, the coalescing filter is further provided with a second one-way valve, the second one-way valve is located at the lower side of the second limiting plate, the second one-way valve is a second flexible element, the second flexible element is sealed and attached to the upper portion of the outer side face of the first shell under the action of self elasticity, the second flexible element cuts off the communication between the oil storage tank and the heat exchange channel, and the second flexible element is used as the side wall of the oil storage tank, namely the second flexible element, the second limiting plate and the transition plate enclose the oil storage tank. In the back blowing process of the second flexible element, air flows out of the drying shell to open the second one-way valve, and oil in the oil storage tank is blown into the heat exchange channel.
Preferably, the connecting portion comprises a supporting plate fixed on the side wall of the second shell, the outer side of the supporting plate is fixedly connected with an oil baffle plate coaxially arranged with the second shell, the first limiting plate is fixedly connected with the oil baffle plate, a diversion area is formed between the air outlet side of the coalescing filter element and the oil baffle plate in a surrounding mode, and air flow is filtered by the coalescing filter element and then enters the drying cavity after being diverted by the diversion area. The oil baffle can intercept the oil in the air current, thereby ensuring that oil drops stably enter the oil storage tank and ensuring that the air current is cleaner.
Preferably, the opening at the upper end of the second shell is provided with a supporting cover, a supporting spring is arranged on the supporting cover, the upper end of the supporting spring is abutted against the top of the tank body, and the drying shell is abutted against the lower end of the tank body under the action of the first spring. The spring has the function of stably supporting the drying shell at the lower end of the tank body, ensures the stability of the whole shell and is convenient to install.
Preferably, the upper surface of the transition plate is an inclined slope with a height gradually decreasing toward the outer edge. The inclined plane has the advantages that the oil can stably flow into the oil storage tank and can be stably stored, oil drops cannot flow into the drying cavity, and therefore the service life of the tank body is prolonged.
Preferably, the coalescing filter element is a cylindrical filter element having an inner diameter that gradually increases in a vertical direction.
Preferably, the tank body comprises a bottom plate at the bottom, an air inlet and an air outlet are formed in the bottom plate, a bottom cover is arranged at the bottom of the tank body, reinforcing ribs which are centrifugally distributed along the center of the bottom cover are arranged at the bottom of the bottom cover, an air outlet channel communicated with the air outlet is formed in the inner wall of the drying cavity, and air flow entering from the air inlet enters into the heat exchange channel after being centrifugally separated by the reinforcing ribs; the coalescing filter is arranged at the upper part of the drying shell and is in sealing contact with the inner wall of the tank body, and the lower end of the coalescing filter is sealed with the drying shell.
The invention also provides a vehicle which is equipped with the vibration-proof drying tank with compact structure.
Due to the adoption of the technical scheme, the invention has the following remarkable technical effects:
1. the present invention is structured such that the first check valve and the second check valve are located at the ends of the heat exchange passage, in such a position that they do not contact the incoming hot air flow and that they do not need to be balanced with any additional force, so that they can be made of cheaper materials without forced stressing and can be designed to a precise opening pressure.
2. In the invention, after the coalescing filter and the flow transfer macroscopic liquid drops to the oil pool, the fluid is guided to the radial direction by the guide plate, and the bottom surface of the oil storage tank is an inclined surface, so that the oil in the oil storage tank can not cause oil return phenomenon due to different installation modes. The advantage of this is that the direction in which the dryer cartridge is mounted is not limited by gravity, so that it can also be mounted in a horizontal position in a vehicle. This is important for buses with limited air dryer space.
3. In the present invention, the safety opening function is achieved by a separate filter housing that is movable independently of the fixed inner housing. Under the condition that pollution or icing is blocked, the spring only plays a role in abutting, the drying shell and the coalescing filter cannot move up and down, so that the overall stability of the drying tank is guaranteed, when the coalescing filter is blocked, the air pressure in the heat exchange channel is increased, the first flexible element is opened to enable air flow to directly enter the drying shell from the channel opened by the first flexible element to be dried, in the process, the coalescing filter and the drying shell in the drying shell are not displaced, parts of the drying tank cannot be damaged, and meanwhile, the cover of the inner shell is fixed at the position of the drying shell after being installed, so that a desiccant material cannot move relative to the inner shell, and the mass of the desiccant material cannot form an oscillating system.
4. The bottom cover is provided with the centrifugal separator, and the centrifugal separator can separate solid particles and larger water and oil drops from the airflow, so that the solid particles and the larger water and oil drops are prevented from reaching the coalescing filter from the airflow, and the coalescing filter is prevented from being blocked completely or partially.
5. According to the invention, the spring and the coalescing filter are designed in a sleeved structure, so that the ineffective space of the drying tank is saved, the volume of the drying shell Cheng Fanggan desiccant is increased, the integration degree of the whole device is higher, the structure is more compact, and the volume of the drying tank is reduced.
Drawings
Fig. 1 is a schematic diagram of a structure of a related art drying tank.
Fig. 2 is a schematic perspective view of a drying tank according to an embodiment.
Fig. 3 is a bottom view of fig. 2.
Fig. 4 is a cross-sectional view from the perspective of fig. 3 A-A.
Fig. 5 is an enlarged view of the portion I of fig. 4.
Fig. 6 is a schematic structural view of the first case bottom cover.
Fig. 7 is a schematic diagram of a connection structure of the drying shell and the first and second limiting plates.
FIG. 8 is a schematic illustration of the connection of the first flexible member, the second flexible member, and the stop rib.
The names of the parts indicated by the numerical references in the drawings are as follows: 30-tank, 31-inlet, 32-outlet, 33-drying shell, 34-drying chamber, 35-coalescing filter, 36-heat exchange channel, 37-first shell, 38-second shell, 39-transition plate, 40-coalescing shell, 41-coalescing filter cartridge, 42-oil reservoir, 43-first check valve, 44-first stop plate, 45-second stop plate, 46-first flexible element, 47-second check valve, 48-second flexible element, 49-oil baffle, 50-diversion zone, 51-support cover, 52-support spring, 53-bottom plate, 54-bottom cover, 55-stiffening rib, 56-air outlet channel, 57-first air inlet channel, 58-rib, 59-guide sleeve, 60-support plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 2 to 8, an anti-vibration drying tank having a compact structure includes a tank body 30, wherein the tank body 30 is a cylindrical tank body 30. The tank body 30 is provided with the air inlet 31 and the air outlet 32, the tank body 30 comprises a bottom plate 53 at the bottom, the air inlet 31 and the air outlet 32 are both arranged on the bottom plate 53, the air outlet 32 is positioned in the middle of the bottom plate 53, and the number of the air inlets 31 is uniformly distributed around the air outlet 32. A drying shell 33 is arranged in the tank body 30, a drying cavity 34 for containing a drying agent is arranged in the drying shell 33, and the drying cavity 34 is arranged in the drying cavity 34. Wherein, a coalescing filter 35 for filtering oil particles is arranged on the drying shell 33 of the drying shell 33, a heat exchange channel 36 is defined by the outer side wall of the drying shell 33, the outer side wall of the coalescing filter 35 and the inner side wall of the tank body 30, and air flow is discharged from the air outlet 32 through the air inlet 31, the heat exchange channel 36, the coalescing filter 35 and the drying cavity 34 in sequence; the drying case 33 includes a first case 37 at a lower portion and a second case 38 located above the first case 37, the second case 38 has an inner diameter smaller than that of the first case 37, a connection plate for connecting the first case 37 and the second case 38 is a transition plate 39, the coalescing filter 35 is located above the transition plate 39, and the coalescing filter 35 is sleeved outside the second case 38.
In order to ensure the stability of the air flow, the drying housing 33 is a cylindrical housing coaxially arranged with the tank 30, and the first housing 37 and the second housing 38 are integrally formed to form the drying chamber 34 inside. The top of the second casing 38 is provided with an opening, a supporting cover 51 is assembled on the opening, a first air inlet channel 57 is formed on the supporting cover 51, air flow can enter the drying tank 30, and the detachable supporting cover 51 facilitates addition and replacement of drying agent. The upper end face of the supporting cover 51 supports a supporting spring 52, the upper end of the supporting spring 52 abuts against the top of the tank body 30, the drying shell 33 abuts against the bottom plate 53 of the tank body 30 under the action of the supporting spring 52, the bottom of the drying shell 33 is a bottom cover 54, a reinforcing rib 55 centrifugally distributed along the center of the bottom cover 54 is arranged on the lower end face of the bottom cover 54, an air outlet channel 56 communicated with the air outlet 32 is formed in the inner wall of the drying cavity 34, in order to enable the reinforcing rib 55 to support a certain space with the bottom plate 53, supporting legs 70 are arranged on the bottom cover 54, the supporting legs 70 abut against the bottom plate 53, air flow entering from the air inlet 31 enters the heat exchange channel 36 after being centrifugally separated through the reinforcing rib 55, and large-particle solids and large liquid drops are separated through the reinforcing rib 55 in the centrifugal process, so that the air flow entering the heat exchange channel 36 is ensured to be cleaner. Meanwhile, in order to ensure the stability of the supporting spring 52, a guiding sleeve 59 is further arranged on the supporting cover 51, and the supporting spring 52 is placed in the guiding sleeve 59.
The coalescing filter 35 includes an annular coalescing housing 40 disposed along the outer circumference of the second housing 38 and an annular coalescing filter element 41 mounted on the coalescing housing 40, the lower end of the coalescing housing 40 and the transition plate 39 enclosing a sump 42, the coalescing filter 35 including a connection portion fixedly connected to the second housing 38 and a mounting portion for mounting the coalescing filter element 41. Wherein the connection portion includes a support plate 60 fixed on a sidewall of the second housing 38, the support plate 60 is disposed perpendicular to an outer side surface of the second housing 38, and the support plate 60 is uniformly distributed along an outer circumferential direction of the second housing 38. The outside fixedly connected with of backup pad 60 and the oil baffle 49 of the coaxial setting of second casing 38, it is obvious that oil baffle 49 is annular oil baffle 49 cladding in the outside of second casing 38, in order to guarantee that the air current can stably get into dry chamber 34, so oil baffle 49 leaves the gas circuit passageway that gets into dry chamber 34, and in order to be convenient for processing, the mode of adopting is that the lower terminal surface of oil baffle 49 leaves the clearance with the upper end face of transition board 39 to guarantee the passageway of air current. It is obvious that the first limiting plate 44 is fixedly connected with the oil baffle plate 49, a diversion area 50 is defined between the air outlet side of the coalescing filter element 41 and the oil baffle plate 49, air flow is filtered by the coalescing filter element 41 and is diverted by the diversion area 50 and enters the drying cavity 34, specifically, air flow enters the space between the oil baffle plate 49 and the outer wall of the second shell 38 through the bottom of the diversion area 50 and then enters the drying cavity 34 from the first air inlet channel 57 on the supporting cover 51 for drying. The upper surface of the transition plate 39 is inclined with a gradually decreasing height toward the outer edge so that the shape of the oil reservoir 42 ensures that oil does not enter the drying chamber 34 even when inclined, and thus the shape of the drying tank can be variously installed, not just vertically.
The coalescing housing 40 is provided with a first check valve 43 which opens when the pressure in the heat exchange passage 36 reaches a predetermined value, and when the first check valve 43 opens, the air flow in the heat exchange passage 36 enters the drying chamber 34 through the first check valve 43, and the coalescing housing 40 is further provided with a second check valve 47 for controlling the oil reservoir 42 to communicate with the heat exchange passage 36.
The installation department includes the first limiting plate 44 that is located the up end of coalescence filter core 41 and the second limiting plate 45 that supports the lower terminal surface of coalescence filter core 41, connect through spacing rib 58 between first limiting plate 44 and the second limiting plate 45, spacing rib 58 is located the inboard and the outside of coalescence filter core 41, wherein the lower extreme and the transition plate 39 of inboard spacing rib 58 link firmly, define inboard spacing rib 58 and be first rib 581, first rib 581 includes the supporting rib 582 of bottom and the connecting rib 583 of connecting first limiting plate 44, second limiting plate 45, the upper end side at supporting rib 582 is fixed to second limiting plate 45, wherein connecting rib 583 sets up at the middle part of supporting rib 582, the supporting rib 582 of connecting rib 583 inboard is used for linking firmly with baffle 49, thereby guarantee the stability of coalescence casing 40, prevent it from appearing rocking.
The first limiting plate 44, the second limiting plate 45 and the ribs 58 constitute an assembly space for assembling the coalescing filter cartridge 41, and the adjacent support ribs 582 divide the oil reservoir 42 into a plurality of spaces. The first check valve 43 is located on the upper side of the first limiting plate 44 and fixedly connected with the coalescing housing 40. The first check valve 43 is a first flexible element 46 which is annular in shape as a whole, and the upper end of the first flexible element 46 is abutted against the inner wall of the heat exchange channel 36 under the action of self elastic force to form a check valve for controlling the heat exchange channel 36 to be communicated with the drying cavity 34. The flexible element is a plate having a deformation recovery capability. The upper portion of the first flexible member 46 abuts against the top of the inner side of the can 30 and the force against the can 30 is directed outwardly, thereby ensuring that the flexible member is capable of controlling the communication of the heat exchange passage 36 to the space above the second housing 38 and is directed only to the heat exchange passage 36 into the second housing 38.
A second one-way valve 47 is also mounted in the tank 30, the second one-way valve 47 being located below the second limiting plate 45, and a second flexible element 48 being fixedly connected to the coalescing housing. The second check valve 47 is a second flexible element 48 with a ring shape, the second flexible element 48 is sealed and attached to the upper portion of the outer side wall of the first housing 37 under the action of self elasticity, the second flexible element 48 cuts off the communication between the oil storage tank 42 and the heat exchange channel 36, in this embodiment, the second flexible element 48 is used as the side wall of the oil storage tank 42, that is, the oil storage tank 42 is surrounded by the second flexible element 48, the second limiting plate 45 and the transition plate 39, the oil in the oil storage tank 42 is abutted against the second flexible element 48, and the second flexible element 48 is in sealing contact with the outer wall of the first housing 37. When more oil is in the oil reservoir 42, the gas in the tank blows back, and the second flexible member 48 is out of contact with the outer side wall of the first housing 37, thereby discharging the oil in the oil reservoir 42.
The working process of the drying tank is as follows: the air flow enters the tank body 30 through the air inlet 31 at the bottom of the drying tank body 30, then the air flow is centrifugally separated through the reinforcing ribs 55 to remove larger impurities in the air flow, then the air flow enters the heat exchange channel 36, the air flow enters the coalescing filter 35 at the top of the tank body 30 through heat exchange and temperature reduction, wherein the pressure of the air flow is smaller than the opening pressure of the first one-way valve 43 at the moment, so that the air flow only passes through the coalescing filter 35, the coalescing filter 35 filters microscopic oil particles in the air flow and then enters the flow guiding area 50, macroscopic oil drops are collected in the oil storage tank 42, then the air flow enters the drying cavity 34 from a gap at the bottom of the oil baffle 49, enters the upper end of the second shell 38 through the first air inlet channel 57 on the supporting cover 51, and the air flow dried by the drying agent enters the air outlet 32 and is discharged from the air outlet channel 56.
When the pressure in the heat exchange channels 36 increases due to clogging of the coalescing filter 35 during use or due to other reasons, when the pressure reaches the opening pressure of the first one-way valve 43, the first one-way valve 43 is opened and the air flow is directed from the heat exchange channels 36 into the drying chamber 34 without having to pass through the coalescing filter 35; thereby realizing the function of safe opening.
When the oil in the oil reservoir 42 is accumulated to a certain extent, the back-blowing is performed in the tank 30, so that the air flow acts on the second check valve 47, and when the air flow pressure is greater than the opening pressure of the second check valve 47, the second check valve 47 is opened, and the oil in the oil reservoir 42 is discharged to the heat exchange passage, so that the oil is discharged from the air inlet 31.
Example 2
The difference between the present embodiment and embodiments 1 and 2 is that the coalescing filter element 41 is a cylindrical filter element with an inner diameter gradually increasing along the vertical direction, the first flexible element 46 and the second flexible element 48 are respectively connected to two ends of the outer rib 46 correspondingly, the outer rib 60, the limit sleeve formed by the first flexible element 46 and the second flexible element 48 are detachably sleeved on the outer side of the coalescing filter element, and the coalescing filter element 41 is placed in an annular clamping groove surrounded by the first limit plate 44, the second limit plate 45 and the inner rib 60 in advance.
Example 3
The present embodiment provides an automotive vehicle equipped with the vibration-preventing dry canister of embodiment 1 or embodiment 2 which is compact in structure.
Claims (7)
1. The utility model provides an anti-vibration drying pot of compact structure, includes a jar body (30), has seted up air inlet (31) and gas outlet (32) on jar body (30), is provided with drying shell (33) in jar body (30), is provided with drying chamber (34) that are used for holding drier in drying shell (33), is provided with coalescence filter (35) that are used for filtering the oil grain on drying shell (33), its characterized in that: the outer side wall of the drying shell (33), the outer side wall of the coalescing filter (35) and the inner side wall of the tank body (30) form a heat exchange channel (36), and air flow is sequentially discharged from the air outlet (32) through the air inlet (31), the heat exchange channel (36), the coalescing filter (35) and the drying cavity (34); the drying shell (33) comprises a first shell (37) at the lower part and a second shell (38) positioned above the first shell (37), the inner diameter of the second shell (38) is smaller than that of the first shell (37), a connecting plate used for connecting the first shell (37) and the second shell (38) is a transition plate (39), the coalescing filter (35) is positioned above the transition plate (39), and the coalescing filter (35) is sleeved outside the second shell (38); the coalescing filter (35) comprises an annular coalescing shell (40) and an annular coalescing filter element (41) which are distributed along the outer circumference of the second shell (38), the coalescing shell (40) is fixedly connected with the drying shell (33), the lower end of the coalescing shell (40) and the transition plate (39) enclose an oil storage tank (42), and the coalescing filter (35) comprises a connecting part fixedly connected with the drying shell (33) and a mounting part for assembling the coalescing filter element (41); the coalescing housing (40) is provided with a first one-way valve (43) which is opened when the pressure in the heat exchange channel (36) reaches a specified value, and air flow in the heat exchange channel (36) enters the drying cavity (34) through the first one-way valve (43) when the first one-way valve (43) is opened, or/and a second one-way valve (47) which is used for controlling the oil in the oil storage tank (42) to be discharged into the heat exchange channel (36) is/are arranged; the coalescing filter (35) is provided with a first one-way valve (43), the mounting part comprises a first limiting plate (44) positioned on the upper end surface of the coalescing filter element (41) and a second limiting plate (45) supporting the lower end surface of the coalescing filter element (41), the first one-way valve (43) is positioned on the upper side of the first limiting plate (44), the first one-way valve (43) is a first flexible element (46), and the upper end of the first flexible element (46) is abutted against the inner wall of the heat exchange channel (36) under the action of self-elasticity to form a one-way valve for controlling the heat exchange channel (36) to be communicated with the drying cavity (34); the coalescing filter (35) is further provided with a second one-way valve (47), the second one-way valve (47) is located at the lower side of the second limiting plate (45), the second one-way valve (47) is a second flexible element (48), the second flexible element (48) is sealed and attached to the outer side wall of the first shell (37) under the action of self elasticity, and the second flexible element (48) cuts off the communication between the oil storage tank (42) and the heat exchange channel (36).
2. A compact anti-vibration drying can according to claim 1, characterized in that: the connecting portion comprises a supporting plate (60) fixed on the side wall of the second shell (38), the outer side of the supporting plate (60) is fixedly connected with an annular oil baffle plate (49) coated on the outer portion of the second shell (38), a diversion area (50) is defined between the air outlet side of the coalescing filter element (41) and the oil baffle plate (49), and air flow is filtered by the coalescing filter element (41) and then is guided by the diversion area (50) and enters the drying cavity (34).
3. A compact anti-vibration drying can according to claim 1 or claim 2, characterized in that: the opening of second casing (38) upper end is equipped with supporting cover (51), is provided with supporting spring (52) on supporting cover (51), and the upper end of supporting spring (52) is contradicted at the top of jar body (30), and drying shell (33) are supported firmly in the lower extreme of jar body (30) under the effect of first spring.
4. A compact anti-vibration drying can according to claim 1 or claim 2, characterized in that: the upper surface of the transition plate (39) is an inclined slope with a height gradually decreasing toward the outer edge.
5. A compact anti-vibration drying can according to claim 1 or claim 2, characterized in that: the coalescing filter element (41) is a cylindrical filter element with an inner diameter gradually increasing in the vertical direction.
6. A compact anti-vibration drying can according to claim 1 or claim 2, characterized in that: the tank body (30) comprises a bottom plate (53) at the bottom, an air inlet (31) and an air outlet (32) are formed in the bottom plate (53), a bottom cover (54) is arranged at the bottom of the drying shell (33), reinforcing ribs (55) which are centrifugally distributed along the center of the bottom cover (54) are arranged on the lower end face of the bottom cover (54), an air outlet channel (56) which is communicated with the air outlet (32) is formed in the inner wall of the drying cavity (34), and air flow entering from the air inlet (31) enters into the heat exchange channel (36) after being centrifugally separated by the reinforcing ribs (55); the coalescing filter (35) is arranged at the upper part of the drying shell (33) and is in sealing contact with the inner wall of the tank body (30), and the lower end of the coalescing filter (35) is sealed with the drying shell (33).
7. A vehicle, characterized in that: a compact anti-vibration drying can equipped with any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811524373.3A CN109453623B (en) | 2018-12-13 | 2018-12-13 | Compact structure's vibration prevention drying vessel |
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| CN201811524373.3A CN109453623B (en) | 2018-12-13 | 2018-12-13 | Compact structure's vibration prevention drying vessel |
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| CN109453623A CN109453623A (en) | 2019-03-12 |
| CN109453623B true CN109453623B (en) | 2023-11-24 |
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| CN201811524373.3A Active CN109453623B (en) | 2018-12-13 | 2018-12-13 | Compact structure's vibration prevention drying vessel |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324352B (en) * | 2020-02-28 | 2024-06-07 | 浙江三花智能控制股份有限公司 | Unidirectional drying filter |
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| GB1082243A (en) * | 1963-04-10 | 1967-09-06 | Richardsons Westgarth & Co | Improvements in or relating to water separators |
| US3464186A (en) * | 1967-02-10 | 1969-09-02 | Hankison Corp | Dryer for compressed fluid systems |
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|---|---|
| CN109453623A (en) | 2019-03-12 |
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