CN205244477U - Be used for rolling stock air dryer trouble to automatically process change -over valve - Google Patents
Be used for rolling stock air dryer trouble to automatically process change -over valve Download PDFInfo
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- CN205244477U CN205244477U CN201521121906.5U CN201521121906U CN205244477U CN 205244477 U CN205244477 U CN 205244477U CN 201521121906 U CN201521121906 U CN 201521121906U CN 205244477 U CN205244477 U CN 205244477U
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Abstract
The utility model provides a be used for rolling stock air dryer trouble to automatically process change -over valve, the both ends of valve rod are fixed with the piston, and the piston is arranged in gas -tight room, and the piston seals through Y type sealing washer with gas -tight room, first gas passage and second gas passage in the valve body are separated by the piston in the room of holding one's breath, respectively are equipped with 1 first gas passage in the both sides of valve body, be equipped with first top guide in the first gas passage, the pad is sealed up to overhead being equipped with of guide, moves first top guide ability closure or opens first gas passage with the solenoid valve, open first gas passage or the second gas passage can both promote the piston, sealed snare is on the valve rod, and when the piston lay in the left side, the second gas vent was stopped up by the sealing washer, gaseous by the air inlet get into the valve body through first gas vent to the equipment air feed, when the piston lay in the right side, first gas vent was stopped up by the sealing washer, gaseously got into the valve body through the second gas vent to the equipment air feed by the air inlet. The utility model discloses a valve can automatic be changed, and messenger's problem in time obtains handling.
Description
Technical field
The utility model relates to a kind of valve of drier, the valve of the automatic transform exhaust mouth of energy and leakage port while being specifically related to the large air draft fault of a kind of drier.
Background technology
In industrial circle, various control valves find broad application, and various control valves are widely used in controls air, water, steam, oil product and various Korrosionsmediums etc.
The various valve classes that generally use in field of track traffic at present play an important role aspect locomotive control. In the air dryer using in track traffic brakes, also many gas, electrically operated valve have been used, due to acting frequently of using, the environment using is poor again, therefore various control valve fault is many, in the process of locomotive operation, the valve of air dryer breaks down, can cause the normal air draft fault of air dryer, compressor internal gas pressure is reduced, do not rise thereby make compressor beat wind, consequence is to cause the major accident that machine building becomes locomotive to drive a vehicle.
Find that by domestic retrieval following patent and the utility model have similarity:
Application number is 201410356233.5, name is called the patent of invention of " gas control combination valve and using method thereof ", this disclosure of the invention a kind of gas control combination valve and using method thereof, gas control combination valve comprises valve body, be sealedly connected on the lid at valve body two ends, be arranged on the air intake assembly of valve inner and gas deflation assembly, heating plate. Air intake assembly comprises that air inlet piston rod, two symmetries are arranged on air inlet piston, the air inlet sliding sleeve at air inlet piston rod two ends. Gas deflation assembly comprises vent piston rods, exhaust pition, exhaust pition cover, guide pad, sealing block, back-moving spring, exhaust sliding sleeve. Gas control combination valve of the present invention, is convenient to install, and safeguards, make integral module formula adsorptive drier succinct, attractive in appearance without the control tracheae exposing, compact conformation, is convenient to realize intelligent automatic control. The connection of tracheae is not controlled in this invention, without the phenomenon of air pipe interface gas leakage, reduces by a silencer, and for follow-up drying machine fault automatic processing device provides fault detection signal source, reduces by a heating plate, reduces energy consumption, and entirety has reduced valve body cost.
Although the invention that application number is 201410356233.5 is also the valve of drying machine, and also carry out the open and close of by-pass valve control with magnetic valve, but it is not structurally the open and close of carrying out by-pass valve control by the movement of solenoid control pilot head, also do not switch the device of gas outlet and leakage port, therefore its structure is different from the utility model with principle.
Utility model content
The technical problems to be solved in the utility model is: occur normal air draft fault for air dryer, cause that compressor internal gas pressure reduces, thereby have influence on the normal work of compressor, cause this technical problem of security incident, and one is proposed in the time detecting that compressor internal gas pressure is on the low side, the valve of automatic switchover exhaust outlet and leakage port.
Pin is with the problems referred to above, and the technical scheme the utility model proposes is: a kind of rolling stock air dryer fault that is used for is processed switching valve automatically, and the two ends of valve rod are fixed with piston, and piston is arranged in gas-tight chamber, and piston and gas-tight chamber seal by y-type seal ring; The first gas passage in valve body and the second gas passage are separated by piston in chamber holding one's breath, and are respectively provided with 1 the first gas passage in the both sides of valve body; In the first gas passage, be provided with pilot head, pilot head is provided with sealing gasket, and moving pilot head with magnetic valve can be closed or open the first gas passage; Open the first gas passage or the second gas passage can promote piston; Sealing ring is enclosed within on valve rod, when piston is positioned at left side, the sealed circle of second row gas port is blocked, gas by air inlet enter valve body through first row gas port to equipment air feed, when piston is positioned at right side, the sealed circle of first row gas port is blocked, gas by air inlet enter valve body through second row gas port to equipment air feed.
Further, the first gas passage comprises horizontal gas port, air chamber, airtube, the gentle closed chamber of pore, and air inlet is communicated with horizontal gas port, and air chamber, airtube, the gentle closed chamber of pore are communicated with, laterally gas port is communicated with air chamber, but separates between horizontal gas port and air chamber.
Further, the second gas passage comprises the straight air flue of valve body, horizontal flue and straight air flue, and wherein the straight air flue of valve body is communicated with air inlet, and straight air flue is communicated with the chamber of holding one's breath.
Further, the two ends of horizontal flue are respectively communicated with 1 straight air flue, 1 straight air flue of valve body of intermediate connection of horizontal flue.
Further, the left side of valve body is also provided with electrically-controlled valve, and the electrically-controlled valve in left side can be controlled the movement of the pilot head in left side, and the pilot head in left side to the right movement can be by the first gas passage closure in left side; The pilot head in left side to the left movement can be opened first gas passage in left side, and piston moves to the right.
Further, the right side of valve body is also provided with reset hand lever, and the reset hand lever on right side can be controlled the movement of the pilot head on right side, and the pilot head on right side to the left movement can be by the first gas passage closure on right side; The pilot head on right side to the left movement can be opened first gas passage on right side, and piston moves to the right.
The utility model has the advantages that:
In the utility model by automatically detecting the air pressure in compressor, in the time that described air pressure is on the low side, valve can carry out the conversion of exhaust outlet and leakage port automatically, can make problem be processed in time, avoids compressor power to reduce even to lose efficacy and the security incident that causes.
In the utility model by automatically detecting the air pressure in compressor, and the automatic conversion of air pressure exhaust outlet and leakage port time on the low side, ceaselessly detects and changes without staff, can save manpower.
Brief description of the drawings
Fig. 1 is cutaway view of the present utility model;
Fig. 2 is the cutaway view of another location of the present utility model;
In figure: 1 valve body, 2 gas-tight chambers, 3 first row gas ports, 4 sealing rings, 5 second row gas ports, 6Y RunddichtringO, 7 valve rods, 8 pistons, 9 second leakage ports, 10 first leakage ports, 11 reset hand levers, 12 horizontal gas ports, 13 pilot head, 131 sealing gaskets, 14 air chambers, 15 airtubes, 16 pores, 17 air inlets, 18 straight air flues, 19 horizontal flues, the straight air flue of 20 valve body.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the utility model is done the description of a step:
Embodiment mono-
As shown in Figure 1, valve body 1 comprises the first gas passage and the second gas passage, the first gas passage comprises horizontal gas port 12, air chamber 14, airtube 15, the gentle closed chamber 2 of pore 16, air inlet 17 is communicated with horizontal gas port 12, air chamber 14, airtube 15, the gentle closed chamber 2 of pore 16 are communicated with, laterally gas port 12 is communicated with air chamber 14, but separates between horizontal gas port 12 and air chamber 14. The second gas passage comprises the straight air flue 20 of valve body, horizontal flue 19 and straight air flue 18, and the two ends of horizontal flue 19 are respectively communicated with 1 straight air flue 18, the straight air flue 20 of 1 valve body of intermediate connection of horizontal flue 19. Wherein the straight air flue 20 of valve body is communicated with air inlet 17, and straight air flue 18 is communicated with the chamber 14 of holding one's breath.
Respectively there is 1 the first gas passage on the left side of valve body 1 and right side, and two the first gas passages are symmetrical. Air inlet 17 is directly communicated with the horizontal gas port 12 in the first gas passage, and air inlet 17 is directly communicated with the straight air flue 20 of valve body in the second gas passage. The present embodiment is horizontal figure originally, is that a side that is provided with reset hand lever 11 in valve body 1 is right side by counterclockwise having rotated 90 degree in Fig. 1.
Under normal circumstances, the gas after air compressor compression enters valve body 1 from air inlet 17, and gas outputs to the equipment with gas through first row gas port 3, and waste gas is discharged from the first leakage port 10. But when drier breaks down, may cause the normal air draft of air dryer, compressor internal gas pressure is reduced, cause security incident.
For avoiding above-mentioned security incident, the magnetic valve that automatic air pressure checkout gear is housed in drier and automatically makes pilot head 13 move, pressure test device and magnetic valve do not draw in the drawings. Under normal operating conditions, the sealing gasket 131 in pilot head 13 and pilot head 13 withstands on horizontal gas port 12 places, and horizontal gas port 12 is blocked, and gas can not enter air chamber 14 from horizontal gas port 12. Owing to laterally separating between gas port 12 and airtube 15, laterally the gas in gas port 12 can not enter airtube 15.
In the time detecting that in compressor, air pressure is on the low side, in first gas passage in left side: magnetic valve switch on and compress left side pilot head 13 in volute spring, because air inlet 17 is communicated with the horizontal gas port 12 in left side, therefore after volute spring compression, the gas in the horizontal gas port 12 in left side can promote the pilot head in left side 13 to the right. Gas in horizontal gas port 12 can be entered in the air chamber 14 on right side, thereby flow to airtube 15 and pore 16. The piston 8 in the gas push left side in pore 16 moves right. After the piston 8 in left side moves right, the contact-making surface of the piston 8 in gas and left side increases rapidly, and the piston 8 in left side thrust to the right is also increased thereupon, and piston 8 moves right.
As shown in Figure 2, in the time detecting that in compressor, air pressure is on the low side, the straight air flue 18 in the left side in the second gas passage can be closed automatically, and the straight air flue 18 on right side is opened. When the gas in the first gas passage has promoted the piston in left side 8 to the right after a bit of distance, in the second gas passage: the gas in the straight air flue 18 on right side enters the gas-tight chamber 2 on right side, and the piston 8 that promotes right side moves right.
As shown in Figure 1, sealing ring 4 is enclosed within on valve rod 7, and the two ends of valve rod 7 are fixed with piston 8, and piston 8 is arranged in gas-tight chamber 2, and piston 8 seals by y-type seal ring 6 with gas-tight chamber 2. When the piston 8 of one side moves, the piston 8 of opposite side and valve rod 7 and sealing ring 4 all can move thereupon. Under normal operating conditions, the piston 8 of both sides is in the left side of gas-tight chamber 2, now, second row gas port 5 and the sealed circle 4 of the second leakage port 9 are blocked, first row gas port 3 and the first leakage port 10 are not plugged, gas by air inlet 17 enter valve body 1 through first row gas port 3 to equipment air feed, and through the first leakage port 10, waste gas is discharged.
As shown in Figure 2, in the time detecting that in compressor, air pressure is on the low side, piston 8 in two gas-tight chambers 2 all can move to right side, first row gas port 3 and the sealed circle 4 of the first leakage port 10 are blocked, second row gas port 5 second leakage ports 9 are not plugged, gas by air inlet 17 enter valve body 1 through second row gas port 5 to equipment air feed, and through the second leakage port 9, waste gas is discharged.
As shown in Figure 1, after drier fault is got rid of, press reset hand lever 11, magnetic valve power-off, under the thrust of volute spring, the pilot head 13 in left side moves right, and blocks the horizontal gas port 12 in left side. Meanwhile, in first gas passage on right side: reset hand lever 11 compresses the volute spring in the pilot head 13 on right side, because air inlet 17 is communicated with horizontal gas port 12, therefore, after volute spring compression, laterally the gas in gas port 12 can promote the pilot head on right side 13 left. Gas in horizontal gas port 12 can be entered in the air chamber 14 on right side, thereby flow to airtube 15 and pore 16. The piston 8 on the gas push right side in pore 16 moves right. After the piston 8 on right side is moved to the left, the contact-making surface of the piston 8 on gas and right side increases rapidly, and the piston 8 on right side thrust to the right is also increased thereupon, and piston 8 is moved to the left.
As shown in Figure 2, press after reset hand lever 11, the straight air flue 18 on the right side in the second gas passage can be closed automatically, and the straight air flue 18 in left side is opened. When the gas in the first gas passage of right side has promoted the piston on right side 8 left after a bit of distance, in the second gas passage: the gas in the straight air flue 18 in left side enters the gas-tight chamber 2 in left side, and the piston 8 in promotion left side is moved to the left. In the time that piston 8 moves on to Far Left in gas-tight chamber 2, as shown in Figure 1, switching valve has been got back to normal operating position.
Obviously, do not departing under the prerequisite of principle described in the utility model, some improvement of making or modification all should be considered as protection domain of the present utility model.
Claims (6)
1. automatically process switching valve for rolling stock air dryer fault for one kind, it is characterized in that, the two ends of valve rod (7) are fixed with piston (8), and piston (8) is arranged in gas-tight chamber (2), and piston (8) seals by y-type seal ring (6) with gas-tight chamber (2); The first gas passage in valve body (1) and the second gas passage are separated by piston (8) in the chamber of holding one's breath (14), are respectively provided with 1 the first gas passage in the both sides of valve body (1); In the first gas passage, be provided with pilot head (13), pilot head (13) is provided with sealing gasket (131), and moving pilot head (13) with magnetic valve can be closed or open the first gas passage; Open the first gas passage or the second gas passage and can promote piston (8); Sealing ring (4) is enclosed within on valve rod (7), when piston (8) is positioned at left side, the sealed circle of second row gas port (5) (4) is blocked, gas by air inlet (17) enter valve body (1) through first row gas port (3) to equipment air feed, when piston (8) is positioned at right side, the sealed circle of first row gas port (3) (4) is blocked, gas by air inlet (17) enter valve body (1) through second row gas port (5) to equipment air feed.
2. one according to claim 1 is processed switching valve automatically for rolling stock air dryer fault, it is characterized in that, the first gas passage comprises horizontal gas port (12), air chamber (14), airtube (15), the gentle closed chamber of pore (16) (2), air inlet (17) is communicated with horizontal gas port (12), air chamber (14), airtube (15), the gentle closed chamber of pore (16) (2) are communicated with, laterally gas port (12) is communicated with air chamber (14), but separates between horizontal gas port (12) and air chamber (14).
3. one according to claim 1 is processed switching valve automatically for rolling stock air dryer fault, it is characterized in that, the second gas passage comprises the straight air flue of valve body (20), horizontal flue (19) and straight air flue (18), wherein the straight air flue of valve body (20) is communicated with air inlet (17), and straight air flue (18) is communicated with the chamber of holding one's breath (14).
4. one according to claim 3 is processed switching valve automatically for rolling stock air dryer fault, it is characterized in that, the two ends of horizontal flue (19) are respectively communicated with 1 straight air flue (18), 1 straight air flue of valve body of intermediate connection (20) of horizontal flue (19).
5. one according to claim 1 is processed switching valve automatically for rolling stock air dryer fault, it is characterized in that, the left side of valve body (1) is also provided with electrically-controlled valve, the electrically-controlled valve in left side can be controlled the movement of the pilot head (13) in left side, and the pilot head (13) in left side to the right movement can be by the first gas passage closure in left side; The pilot head (13) in left side to the left movement can be opened first gas passage in left side, and piston (8) moves to the right.
6. one according to claim 1 is processed switching valve automatically for rolling stock air dryer fault, it is characterized in that, the right side of valve body (1) is also provided with reset hand lever (11), the reset hand lever (11) on right side can be controlled the movement of the pilot head (13) on right side, and the pilot head (13) on right side to the left movement can be by the first gas passage closure on right side; The pilot head (13) on right side to the right movement can be opened first gas passage on right side, and piston (8) moves to the left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521121906.5U CN205244477U (en) | 2015-12-31 | 2015-12-31 | Be used for rolling stock air dryer trouble to automatically process change -over valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521121906.5U CN205244477U (en) | 2015-12-31 | 2015-12-31 | Be used for rolling stock air dryer trouble to automatically process change -over valve |
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| Publication Number | Publication Date |
|---|---|
| CN205244477U true CN205244477U (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521121906.5U Active CN205244477U (en) | 2015-12-31 | 2015-12-31 | Be used for rolling stock air dryer trouble to automatically process change -over valve |
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| CN (1) | CN205244477U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536264A (en) * | 2020-05-14 | 2020-08-14 | 威仕喜(浙江)流体技术有限公司 | Pilot valve structure and have its sliding valve |
-
2015
- 2015-12-31 CN CN201521121906.5U patent/CN205244477U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536264A (en) * | 2020-05-14 | 2020-08-14 | 威仕喜(浙江)流体技术有限公司 | Pilot valve structure and have its sliding valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |