CN204093266U - A kind of absorption type double tower drying device - Google Patents
A kind of absorption type double tower drying device Download PDFInfo
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- CN204093266U CN204093266U CN201420501015.1U CN201420501015U CN204093266U CN 204093266 U CN204093266 U CN 204093266U CN 201420501015 U CN201420501015 U CN 201420501015U CN 204093266 U CN204093266 U CN 204093266U
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Abstract
The utility model relates to absorption type double tower drying device, and composition comprises: two drying towers, magnetic valve, reversal valves; Magnetic valve is 3 position-5 way pilot solenoid valve, and it has an air inlet be connected with drying tower gas outlet, two gas outlets, and two scavenge ports be communicated with air; Reversal valve is 3 position-5 way guide air operated reversing valve, it has an air inlet be connected with compressed air source, two gas outlets be connected with two drying tower air inlets respectively, two pilot pressure input ports be connected with magnetic valve gas outlet, and two scavenge ports be communicated with air; The gas outlet of two drying towers connects the air inlet of minimum pressure valve and magnetic valve respectively after check valve, and the separated air flue by being equipped with choke valve between the gas outlet of two drying towers is connected.Utilize the combination of magnetic valve and air operated reversing valve to realize the switching of gas circuit between drying tower, thus make two towers be in different duties, and can easily change.
Description
Technical field
The utility model relates to a kind of absorption type double tower drying device, is specially adapted to the drying of track traffic wind regime, belongs to rail vehicle wind regime technical field of drying.
Background technology
Containing higher moisture, oil content and mechanical admixture etc. in the compressed air that air compressor machine exports, the phenomenon such as railway vehicle braking system can be caused to produce corrosion, blocking, condensate water if do not remove, freeze, thus cause train braking fault.Therefore, compressed air has to pass through dry filter, just can reach train braking air quality requirements.In order to realize uninterrupted air feed to downstream gas equipment, nearly all absorbed type drying device is all designed to Double-Tower Structure, dry and regeneration need be carried out simultaneously, namely one of them tower is when carrying out adsorption operations, another tower carries out regenerative operation to adsorbent simultaneously, and after certain hour, double tower operating mode automatically switches.
Controlled method and Realization of Product restriction, current track traffic absorption type double-tower dryer ubiquity complex structure, use that more, the volume of device and weight are comparatively large, on line and safeguard inconvenient shortcoming under line.Be mainly reflected on air inlet and exhaust mode, if any product adopt four transfer valves to realize the air inlet of double tower, exhaust, the employing also had intake valve and an air bleeding valve realize above-mentioned functions.Such shortcoming is that the valve used is more, all not ideal enough in use cost, maintenance and reliability, and particularly the feature of intake valve and air bleeding valve is that the compressed air humidity passed through is high, for preventing low temperature from freezing, needs to increase more heater.
In addition, on each integration mode realized between parts, the two gas path plate structure (up and down each) of the many employings of existing product, realize the air inlet of drying tower and give vent to anger, middle control gas is coupled together by external pipeline.Such mode is unfavorable for the compactedness of structure, take up room comparatively large, cost is higher, on working service and safety guarantee, also there is larger hidden danger in the connecting line exposed.Especially structurally interrelated between each parts, cannot change by complete independently, this being particular about fast and safely, the track traffic industry of easy maintenance, be a challenge greatly.
Summary of the invention
Technical problem to be solved in the utility model is, overcomes the above-mentioned shortcoming of prior art, provides a kind of absorption type double tower drying device, its integration mode is simple, working service is convenient.
In order to solve above technical problem, the absorption type double tower drying device that the utility model provides, composition comprises: two drying towers, magnetic valve, reversal valves; Described magnetic valve is 3 position-5 way pilot solenoid valve, and it has an air inlet be connected with drying tower gas outlet, two gas outlets, and two scavenge ports be communicated with air; Reversal valve is 3 position-5 way guide air operated reversing valve, it has an air inlet be connected with compressed air source, two gas outlets be connected with two drying tower air inlets respectively, two pilot pressure input ports be connected with magnetic valve gas outlet, and two scavenge ports be communicated with air; The gas outlet of two drying towers connects the air inlet of minimum pressure valve and magnetic valve respectively after check valve, and the separated air flue by being equipped with choke valve between the gas outlet of described two drying towers is connected.
In order to solve above technical problem, the utility model further improves and is:
1, described reversal valve comprises valve body, be arranged at two valve modules of valve body, each valve module all has slidably piston, pilot pressure input port and is arranged at the air inlet interconnected on valve body, gas outlet, scavenge port, the first end of piston is provided with template and stage clip, the pilot pressure chamber of sealing is formed between described template and pilot pressure input port, second end of piston is provided with spool, when stage clip is in release conditions, the lateral surface of spool closes scavenge port, is path between air inlet and gas outlet; When stage clip is in compressive state, the medial surface of spool closes the gas circuit between air inlet and gas outlet, is path between gas outlet and scavenge port.
2, two valve modules share an air inlet be arranged on valve body, in described valve body, there is chamber, this chamber has the air inlet be communicated with two valve module air inlets and two gas outlets be communicated with scavenge port with the gas outlet of two valve modules respectively, and the gas outlet of chamber forms a triplate line with corresponding valve module gas outlet and scavenge port; When the stage clip of a certain side valve assembly is in release conditions, be path between the gas outlet of the corresponding side of chamber and the gas outlet of this valve module, now, the air inlet of this side valve assembly is communicated with gas outlet; When the stage clip of a certain side valve assembly is in compressive state, the gas outlet of the corresponding side of chamber is closed, and now, is path between the gas outlet of this side valve assembly and scavenge port.
3, described chamber offers two groups of through holes holding spool and pass, and the through hole near spool one end is the gas outlet of chamber, and the through-hole wall away from spool is embedded with the sealing ring be wrapped on piston, for cutting off chamber and pilot pressure chamber.
4, have integrated air board, described drying tower, magnetic valve, reversal valve, check valve, choke valve, minimum pressure valve are arranged on integrated air board, and described integrated air board is provided with the air flue for ventilating between above-mentioned device.
5, the scavenge port of reversal valve is connected with muffler.
6, described integrated air board being provided with the test splice for detecting magnetic valve air inlet air pressure, for detecting the pressure indicator of pressure in drying tower, and giving vent to anger the humidity indicator of humidity for detecting drying tower.
The scavenge port of 7, described reversal valve is provided with pressure sensor, for monitoring device running status.
8, described gas path plate is fixed with electric controller, and described magnetic valve is controlled by this electric controller, and described test splice, pressure sensor are connected with electric controller.
9, described reversal valve is provided with the temperature switch and heater that are connected with electric controller.
It should be noted that, the minimum pilot pressure that should be greater than magnetic valve self by pressure of minimum pressure valve, also should be greater than the pilot pressure of reversal valve simultaneously.That is internal system pressure set up after, before gas pressure increases to by minimum pressure valve, in system pressure should be greater than magnetic valve pilot pressure and opposing stage clip tension force and by the template jack-up of valve module.
The utility model double tower drying device, utilizes the combination of magnetic valve and air operated reversing valve to realize the switching of gas circuit between drying tower, thus makes two towers be in different duties, and can easily change.Utilize merely magnetic valve to carry out compared with switching with tradition, the utility model have that flow is large, response is fast, to use air quality without particular/special requirement and working service feature easily.The air operated reversing valve structure of this device is ingenious, instead of the labyrinth of traditional multiple intake valve and air bleeding valve, simplifies executing agency, thus make the more compact structure of double tower drying device, better quality.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is the present embodiment absorption type double tower drying device structural representation.
Fig. 2 is the integrated air board structural representation of the present embodiment absorption type double tower drying device.
Fig. 3 is the reversal valve outline drawing of the present embodiment absorption type double tower drying device.
Fig. 4 is the reversal valve internal structure schematic diagram (the first state) of the present embodiment absorption type double tower drying device.
Fig. 5 is the reversal valve using state schematic diagram (the second state) of the present embodiment absorption type double tower drying device.
Fig. 6 is the reversal valve using state schematic diagram (third state) of the present embodiment absorption type double tower drying device.
Fig. 7 is the schematic diagram of gas circuit of the present embodiment absorption type double tower drying device.
Under number in the figure schematic diagram:
1-reversal valve, 2-muffler, 3-piston, 4-pilot pressure input port, 5-air inlet, 6-gas outlet, 7-scavenge port, 8-template, 9-stage clip, 10-pilot pressure chamber, 11-spool, 12-chamber, 13-first drying tower, 14-second drying tower, 15-magnetic valve, 16-first check valve, 17-second check valve, 18-test splice, 19-minimum pressure valve, 20-choke valve, 21-pressure sensor, 22-integrated air board, 23-electric controller, 24-first pressure indicator, 25-second pressure indicator, 26-humidity indicator, 27-temperature switch, 28-heater.
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
As Fig. 1, absorption type double tower drying device, composition comprises: the first drying tower 13, second drying tower 14, magnetic valve 15, reversal valve 1, integrated air board 22, electric controller 23.
As shown in Figure 1 and Figure 2, integrated air board is fixed with the first drying tower 13, second drying tower 14, magnetic valve 15, reversal valve 1, electric controller 23, first check valve 16,17-second check valve 17, choke valve 20, minimum pressure valve 19, test splice 18, first pressure indicator 24, second pressure indicator 25, humidity indicator 26.
Wherein, magnetic valve 15, test splice 18 are connected with electric controller 23.
In the present embodiment, magnetic valve 15 is preced with VR61Z711A type 3 position-5 way guide electromagnetic valve for selecting promise, it has an air inlet be connected with two drying tower gas outlets, two for exporting the gas outlet (working hole) of pilot pressure, and two scavenge ports be communicated with air.When must not electricity time, the air inlet of magnetic valve 15 is closed, and scavenge port is connected with gas outlet; Self pilot pressure is greater than, then the air inlet on right side and gas outlet conducting when left side coil obtains pressure that is electric and input, and scavenge port closedown, left side gas circuit remains unchanged.Right side coil obtains electrically trend and left side, and to obtain electric situation contrary.It should be noted that, it is electric that this magnetic valve can only have a lateral coil to obtain, two coils can not simultaneously electric.
As shown in Figure 3, Figure 4, in this example, reversal valve is 3 position-5 way guide air operated reversing valve, and the scavenge port of reversal valve 1 is provided with for the pressure sensor 21 of checkout gear duty and the muffler 2 for eliminating exhaust noise; Reversal valve being also provided with the temperature switch 27 and heater 28 that are connected with electric controller, freezing for preventing low temperature.
As shown in Figure 4, in valve body, be provided with the valve module that two structures are identical, be described for left hand valve assembly below.
Left hand valve assembly has slidably piston 3, pilot pressure input port 4 and is arranged at the air inlet 5 interconnected on valve body, gas outlet 6, scavenge port 7.In this example, two valve modules share an air inlet 5 be arranged on valve body.This reversal valve is a 5 way valve.As shown in Figure 4, still for left hand valve assembly, the first end of piston 3 is provided with template 8 and stage clip 9, stage clip 9 two ends prop up the first end outer wall of valve body and piston 3 respectively, and stage clip 9 provides pretightning force, when not stressing, the low-end trim that piston 3 is positioned at, is shown in left hand valve assembly in Fig. 4, Fig. 6.Form the pilot pressure chamber 10 of sealing between template 8 and pilot pressure input port 4, pilot pressure chamber 10 accepts controlled pressure gas, above can push away the elastic force that template 8 overcomes stage clip 9, thus drives piston 3 to move upward, and sees Fig. 5 left hand valve assembly.Second end of piston 3 is provided with spool 11, and when stage clip 9 is in release conditions, the lateral surface of spool 11 closes scavenge port 7, is path between air inlet 5 and gas outlet 6.As shown in Figure 4, the gas now entering reversal valve blows out from 2 gas outlets of valve body respectively through path.As shown in Figure 5, when stage clip place 9 is in compressive state, the medial surface of spool 11 closes the pipeline between air inlet 5 and gas outlet 6, and be path between gas outlet 6 and scavenge port 7, the pipeline connecting air inlet and gas outlet in two valve modules is interconnected.
As shown in Figure 4, in the present embodiment, there is in valve body chamber 12, this chamber 12 has the air inlet be communicated with two valve module air inlets and two gas outlets be communicated with scavenge port with the gas outlet of two valve modules respectively, and the gas outlet of chamber 12 forms a triplate line with corresponding valve module gas outlet and scavenge port.When the stage clip of a certain side valve assembly is in release conditions, be path between the gas outlet of the corresponding side of chamber and the gas outlet of this valve module, now the air inlet of this valve module is communicated with gas outlet; When the stage clip of a certain valve module is in compressive state, the gas outlet of the corresponding side of chamber is closed, and is now path between the gas outlet of this valve module and scavenge port.As Figure 4-Figure 6, chamber 12 offers two groups of through holes holding spool and pass, and the through hole near spool one end is the gas outlet of chamber, and the through-hole wall away from spool is embedded with the sealing ring be wrapped on piston, for cutting off chamber and pilot pressure chamber.
In order to ensure the sealing of spool close port, can in each valve module, the lateral surface of spool embeds the ring-shaped rubber adapted with valve module scavenge port; The medial surface of spool is embedded with the ring-shaped rubber that gas outlet corresponding to chamber adapts.Also can in each valve module, the inner side of scavenge port is provided with ring-shaped rubber; The arranged outside of chamber exit has ring-shaped rubber.Utilize ring-shaped rubber to have certain flexible feature, make to reach good air-tightness between spool and valve port and between spool and chamber exit.
Below in conjunction with Fig. 7, the course of work of this double tower drying device is described.
During original state, compressor does not work, and two coils of magnetic valve 15 all must not electricity, state that magnetic valve 15 is in " in let out ".Now, the gas outlet of magnetic valve 15 is connected with scavenge port, thus the pilot pressure chamber of two valve modules is connected with air, without pressure in the pilot pressure chamber making two valve modules, the scavenge port of two valve modules is closed, conducting between the air inlet of reversal valve 1 and two gas outlets.Reversal valve state is shown in Fig. 4.This state is original state, two valve module scavenge ports of reversal valve are all in closed condition, so, two air-path interfaces just equal and isolated from atmosphere that drying device is external, stopped device in transport, deposit or the intrusion of extraneous humid air in the batch process that works, prevent adsorbent from becoming damp and rotten.
After air compressor machine starts, device is started working, to reversal valve air inlet conveying compressed air.After the high pressure wet air of supply enters reversal valve 1 from double-tower dryer inlet channel P1, two, left and right drying tower is inflated simultaneously, due to the pressure accumulation non-return effect of minimum pressure valve 19, preferentially sets up intrasystem control atmospheric pressure.
During first cycle, the right side coil of magnetic valve 15 obtains electric, and on the right side of magnetic valve 15, gas outlet and right side scavenge port still keep being communicated with, and guarantees pilot pressure chamber not pressurising on the right side of reversal valve 1; When pressure in system exceedes the pilot pressure of magnetic valve 15, the gas outlet conducting on magnetic valve 15 air inlet and right side, right side scavenge port is closed; Gas outlet on the right side of magnetic valve 15, to the pilot pressure input port pressurising of reversal valve 1 right hand valve assembly, makes the action of reversal valve 1 right hand valve assembly, makes gas outlet and scavenge port conducting on the right side of reversal valve.The gas entering reversal valve leads to the first drier 13 from the gas outlet blowout of left hand valve assembly and carries out drying, and now left side drying tower is as " adsorption tower ".First drying tower 13 give vent to anger a part after the first check valve 16, minimum pressure valve 19 to cylinder air feed, simultaneously provide pilot pressure to magnetic valve 15; Another part is oppositely blown into the second drying tower 14 via choke valve 20, scavenge port and the gas outlet of the right hand valve assembly be now connected with the second drying tower 14 communicate with air, the reverse like this gases at high pressure be blown into expand under reduced pressure atmosphere, drier in from top to down purge column, and the humid air taken away in drier, discharge eventually through after muffler 2 noise reduction process, thus realize the desorption and regeneration to the second drying tower 14.Now, right side drying tower is " regenerator ".Reversal valve state is shown in Fig. 5.
When after work a period of time, enter second cycle.Magnetic valve carries out the switching of pilot pressure gas, and right side coil losing electricity, and left side coil obtains electric, and original " drying tower " is converted to " regenerator ", and original " regenerator " is converted to " drying tower ".Gas circuit trend is contrary, is not described in detail in this example.Reversal valve state is shown in Fig. 6.
So, first cycle and second cycle alternate cycles, go round and begin again, and can ensure the normal work of double-tower dryer.
Said process, can by being arranged on the pressure indicator Real Time Observation of gas path plate.Namely, when a tower pressurising is dry, the valve rod of pressure indicator is extrapolated rapidly outstanding, and once drying tower is transformed into reproduced state, the valve rod of pressure indicator can reset rapidly under spring force.
When the deterioration of device generation drier or regeneration fault, can Real-time Obtaining by humidity indicator.Namely, when drying device output gas humidity is higher, the discolour silica gel be filled in humidity indicator can change color gradually, and prompting operator should check control system and device in time.
In addition, be accurate measurements double tower switching condition, gathered the force value of reversal valve scavenge port by pressure sensor, then send into electric controller Treatment Analysis, external output status signal.Once the force value gathered does not change in setting cycle, be namely judged as fault-signal.
Therefore, the utility model double tower drying device has the function of malfunction monitoring.By the pressure change of monitoring regeneration scavenge port, grasp whole operating performance of plant in real time, once break down, feed back to main system in time, substantially increase the reliability of product.
Visible, the utility model compact conformation, form primarily of 5 mutual independently assemblies, each assembly can be changed in real time, independently, is convenient to maintenance management.
In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.
Claims (10)
1. an absorption type double tower drying device, composition comprises: two drying towers, magnetic valve, reversal valves; Described magnetic valve is 3 position-5 way pilot solenoid valve, and it has an air inlet be connected with drying tower gas outlet, two gas outlets, and two scavenge ports be communicated with air; Reversal valve is 3 position-5 way guide air operated reversing valve, it has an air inlet be connected with compressed air source, two gas outlets be connected with two drying tower air inlets respectively, two pilot pressure input ports be connected with magnetic valve gas outlet, and two scavenge ports be communicated with air; The gas outlet of two drying towers connects the air inlet of minimum pressure valve and magnetic valve respectively after check valve, and the separated air flue by being equipped with choke valve between the gas outlet of described two drying towers is connected.
2. absorption type double tower drying device according to claim 1, it is characterized in that: described reversal valve comprises valve body, be arranged at two valve modules of valve body, each valve module all has slidably piston, pilot pressure input port, and the air inlet interconnected be arranged on valve body, gas outlet, scavenge port, the first end of piston is provided with template and stage clip, the pilot pressure chamber of sealing is formed between described template and pilot pressure input port, second end of piston is provided with spool, when stage clip is in release conditions, the lateral surface of spool closes scavenge port, it is path between air inlet and gas outlet, when stage clip is in compressive state, the medial surface of spool closes the gas circuit between air inlet and gas outlet, is path between gas outlet and scavenge port.
3. absorption type double tower drying device according to claim 2, it is characterized in that: two valve modules share an air inlet be arranged on valve body, in described valve body, there is chamber, this chamber has the air inlet be communicated with two valve module air inlets and two gas outlets be communicated with scavenge port with the gas outlet of two valve modules respectively, and the gas outlet of chamber forms a triplate line with corresponding valve module gas outlet and scavenge port; When the stage clip of a certain side valve assembly is in release conditions, be path between the gas outlet of the corresponding side of chamber and the gas outlet of this valve module, now, the air inlet of this side valve assembly is communicated with gas outlet; When the stage clip of a certain side valve assembly is in compressive state, the gas outlet of the corresponding side of chamber is closed, and now, is path between the gas outlet of this side valve assembly and scavenge port.
4. absorption type double tower drying device according to claim 3, it is characterized in that: described chamber offers two groups of through holes holding spool and pass, through hole near spool one end is the gas outlet of chamber, through-hole wall away from spool is embedded with the sealing ring be wrapped on piston, for cutting off chamber and pilot pressure chamber.
5. absorption type double tower drying device according to claim 1, it is characterized in that: there is integrated air board, described drying tower, magnetic valve, reversal valve, check valve, choke valve, minimum pressure valve are arranged on integrated air board, and described integrated air board is provided with the air flue for ventilating between above-mentioned device.
6. absorption type double tower drying device according to claim 1, is characterized in that: the scavenge port of reversal valve is connected with muffler.
7. absorption type double tower drying device according to claim 5, it is characterized in that: described integrated air board is provided with the test splice for detecting magnetic valve air inlet air pressure, for detecting the pressure indicator of pressure in drying tower, and to give vent to anger the humidity indicator of humidity for detecting drying tower.
8. absorption type double tower drying device according to claim 7, is characterized in that: the scavenge port of described reversal valve is provided with pressure sensor, for monitoring device running status.
9. absorption type double tower drying device according to claim 8, it is characterized in that: described integrated air board is fixed with electric controller, described magnetic valve is controlled by this electric controller, and described test splice, pressure sensor are connected with electric controller.
10. absorption type double tower drying device according to claim 1, is characterized in that: described reversal valve is provided with the temperature switch be connected with electric controller and heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420501015.1U CN204093266U (en) | 2014-09-01 | 2014-09-01 | A kind of absorption type double tower drying device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420501015.1U CN204093266U (en) | 2014-09-01 | 2014-09-01 | A kind of absorption type double tower drying device |
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| CN204093266U true CN204093266U (en) | 2015-01-14 |
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| CN201420501015.1U Withdrawn - After Issue CN204093266U (en) | 2014-09-01 | 2014-09-01 | A kind of absorption type double tower drying device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147895A (en) * | 2014-09-01 | 2014-11-19 | 南京浦镇海泰制动设备有限公司 | Adsorption double-tower drying device |
| CN110090533A (en) * | 2019-04-30 | 2019-08-06 | 南京中车浦镇海泰制动设备有限公司 | A kind of rail traffic heatless regeneration double-tower dryer |
| CN110302635A (en) * | 2019-06-25 | 2019-10-08 | 中车工业研究院有限公司 | It is used for rail vehicle to be air-dried purification device |
-
2014
- 2014-09-01 CN CN201420501015.1U patent/CN204093266U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104147895A (en) * | 2014-09-01 | 2014-11-19 | 南京浦镇海泰制动设备有限公司 | Adsorption double-tower drying device |
| CN104147895B (en) * | 2014-09-01 | 2016-06-08 | 南京浦镇海泰制动设备有限公司 | A kind of adsorption type double tower drying installation |
| CN110090533A (en) * | 2019-04-30 | 2019-08-06 | 南京中车浦镇海泰制动设备有限公司 | A kind of rail traffic heatless regeneration double-tower dryer |
| CN110302635A (en) * | 2019-06-25 | 2019-10-08 | 中车工业研究院有限公司 | It is used for rail vehicle to be air-dried purification device |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20160608 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |