CN201487533U - Air passage drain valve - Google Patents
Air passage drain valve Download PDFInfo
- Publication number
- CN201487533U CN201487533U CN2009201343944U CN200920134394U CN201487533U CN 201487533 U CN201487533 U CN 201487533U CN 2009201343944 U CN2009201343944 U CN 2009201343944U CN 200920134394 U CN200920134394 U CN 200920134394U CN 201487533 U CN201487533 U CN 201487533U
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- Prior art keywords
- valve
- plunger
- valve casing
- valve body
- hole
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- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 239000008358 core component Substances 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010587 phase diagram Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Details Of Valves (AREA)
Abstract
An air passage drain valve comprises a valve casing (1), a valve body (2) and a valve core component (3), and is particularly characterized in that the top portion of the valve casing (1) is provided with an air inlet (11), the lateral face of the valve casing (1) is provided with air outlet (12), the air inlet and the air outlet are communicated at the position of a cavity (23) inside the valve casing (1), the valve body (2) occupies the lower portion of the valve casing (1) and shares a central axis with the valve casing (1), a containing chamber (20) formed by a vertical through hole is arranged at the position of the central axis of the valve casing (2), the lower section of the containing chamber (20) is a containing chamber air inlet (22) with a reduced diameter while a plunger (32) slides up and down inside the upper section of the containing chamber (20), the upper portion of the plunger (32) is connected with one end of a valve plate (31) and one end of a compression spring (33), the other end of the compression spring (33) pushes against the edge of the lower end of the air inlet (11), and the edge portion of the valve body (2) is provided with a vertical drain through-hole (21). The air passage drain valve smartly utilizes the change of pressure differentials inside pipelines as a power source, and realizes automatic working of the valve plate according to the pipeline operation status by aid of engagement between the plunger and the spring, and the leaked water is automatically drained out, thereby having reliable work and high cost performance.
Description
Technical field the utility model relate to air valve with fixed attention or from the seal container of main splendid attire gas the similar device of discharge liquid, particularly relate to from the valve of the quick draining of gas circuit.
Need backwash after background technique industry and environmental protection filter plant use a period of time, prior art adopts pressurized air to come filter plant is carried out backwash usually.In the cleaning process, pressurized air enters filter plant by control valve, plays stirring action, comes cleaning and filtering equipment with this.The contact interface that links to each other with the filter plant pipeline at compressed air line adopts one-way valve to cut off.The water that has when one-way valve breaks down in a large amount of filter plants enters into compressed air line, water gathers overlong time in compressed air line can cause corrosive pipeline, water can enter into gas holder by control valve and cause string water when serious, if untimely processing, also can damage other gas equipments, consequence is very serious.The ponding that prior art is handled in the compressed air line adopts the drain valve draining, described drain valve is installed in the extreme lower position of compressed air line, when the ponding in the compressed air line is pooled to the pipeline lowest order and accumulates to when a certain amount of, can discharge by drain valve.The treatment technology of this employing drain valve of prior art draining exists following deficiency:
Pipeline has been caused corrosion when 1, water enters compressed air line;
2, draining relies on buoyancy of water and pipeline pressure to realize that drainage effect is subjected to all multifactor impacts;
3, drain valve is poorly sealed, has the gas leakage defective.
Model utility content the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part, and prior art is done further improvement, prevent that the ducted water of filter plant from entering compressed air line, under the situation that does not increase autocontrol valve, a kind of high gas circuit drain valve of compressed air line self dynamic drainage, pressurized air zero leakage and reliability that relies on is proposed simultaneously.
The utility model is to solve the technical problem the technological scheme that proposes to be, designs a kind of gas circuit drain valve, comprises valve casing and is placed in its interior valve body, and mangetic core assembly then is positioned partially in the described valve body chamber, especially:
The inlet hole that vertically down stretches is arranged at described valve casing top, the air outlet hole that the side has level to extend toward valve casing medial axis direction, and described two holes connect at valve casing inner cavity place; Described valve body fills up lower half portion of valve casing inner cavity, with valve casing same medial axis is arranged, and place, the medial axis of valve body is the cavity volume that vertical through holes constitutes, its hypomere is the cavity volume inlet hole of diameter reduction, there is plunger to slide up and down in the epimere, and the coaxial line ground, top of plunger is connecting than a much bigger valve plate of described plunger diameter and an end of pressure spring, another free end of this pressure spring then heads on the step of described inlet hole lower edge, the described mangetic core assembly of the common composition of described plunger, valve plate and pressure spring; The proximal edge position of described valve body also has vertical drainage hole.
Have a circle groove on the described plunger close end cylinder at least, it has been embedded in piston packing.
Described valve plate the one side of pressure spring also be equipped with its size coupling on sealing gasket.
Described valve plate also is equipped with the lower seal pad that mates with its size in the one side that connects plunger.
Have a circle groove on the described valve body close end cylinder at least, it is embedded in valve seals.
Fix with fastening screw between described valve body and the valve casing.
Compared with prior art, the utlity model has following beneficial effect:
1, the utility model uses the power that is changed to of the interior pressure reduction of working line dexterously, works automatically according to the pipeline operation conditions by the cooperation realization valve plate of plunger and pressure spring, does not need exterior power and control.When one-way valve fault leaks, outside the automatic discharge conduit of the water of leakage meeting, make not occur seeping phenomenon in the compressed air line;
2, before the utility model gas circuit drain valve is installed in one-way valve, realize normal pressure free-draining, reliable operation, cost performance height.
Description of drawings
Fig. 1 is the main cross-sectional schematic of looking of the orthographic projection of the utility model gas circuit drain valve;
Fig. 2 is the normal working cross-sectional schematic of described gas circuit drain valve after the filter plant backwash finishes;
Fig. 3 is the cross-sectional schematic of described gas circuit drain valve at filter plant backwash state.
Embodiment is described in further detail below in conjunction with the preferred embodiment shown in the accompanying drawing.
Fig. 1 is that the master of this preferred embodiment gas circuit drain valve looks sectional view, comprises valve casing 1 and is placed in its interior valve body 2, and 3 of mangetic core assemblies are positioned partially in described valve body 2 chambeies.Valve casing 1 top has inlet hole 11, and the side level has the air outlet hole 12 that extends toward valve casing 1 medial axis direction, and inlet hole 11 and air outlet hole 12 connect at valve casing 1 inner cavity 23 places.Valve body 2 fills up lower half portion of valve casing 1 inner cavity 23, with valve casing 1 in same medial axis; The place, medial axis of valve body 2 is cavity volumes 20 that vertical through holes constitutes, and its hypomere is the cavity volume inlet hole 22 of diameter reduction, has plunger 32 to slide up and down in its epimere, and a circle groove is arranged on newel post's face of plunger 32 in cavity volume 20, and groove has been embedded in piston packing a; The coaxial line ground, top of plunger 32 is connecting than a much bigger valve plate 31 of described plunger 32 diameters and an end of pressure spring 33, the one side that valve plate 31 is connected with plunger 32 or pressure spring 33 is separately installed with the lower seal pad c that is complementary with its size or goes up sealing gasket b, another free end of this pressure spring 33 then heads on the step of inlet hole 11 lower end outer rims, described plunger 32, valve plate 31, pressure spring 33, last sealing gasket b and the described mangetic core assembly 3 of the common formation of lower seal pad c.Valve body 2 one side proximal edge positions also have a vertical drainage hole 21.One circle groove is arranged on the valve body 2 bottom close end cylinders, and it is embedded in valve seals d.Fix with fastening screw e between valve body 2 and the valve casing 1.
Fig. 2 and Fig. 3 are respectively that described gas circuit drain valve is installed on the pipeline filter plant is carried out normal working that backwash finishes and the valve of backwash state is analysed and observe phase diagram.The gas circuit drain valve is installed between control valve F on the compressed air line and the one-way valve (not shown, down with), and the inlet hole 11 on the valve casing 1 is connected with control valve F one end, and air outlet hole 12 is connected with one-way valve one end; Control valve F front end is told a compressed air line and is connected with the cavity volume inlet hole 22 of valve body 2 bottoms, is used for cavity volume 20 air feed in valve body 2.
As shown in Figure 2, after the backwash of the equipment of filtration finishes, control valve F closes, pressure and the pressure in the compressed air line in the cavity volume 20 equate, and be normal pressure in the cavity 23 of 2 of valve casing 1 and valve bodies, at this moment, plunger 32 upwards promotes valve plate 31, compress pressure spring 33 simultaneously, last valve plate 31 is with inlet hole 11 sealings, and the drainage holes 21 in air outlet hole 12 and the valve body 2 are communicated with, drainage hole 21 and atmosphere isobaric and with extraneous conducting, when air outlet hole 12 has water in the filter plant to reflux, then directly flow out outside the valves by drainage hole 21.
As shown in Figure 3, when filter plant is carried out backwash, control valve F opens, pressure and the pressure in the cavity volume 20 in the inlet hole 11 are equated, the elastic force drive valve plate 31 of pressure spring 33 moves downward, and after putting in place drainage hole 21 is sealed, at this moment, inlet hole 11 and air outlet hole 12 are connected, and pressurized air is sent into filter plant by the gas circuit drain valve through one-way valve.
Claims (6)
1. a gas circuit drain valve comprises valve casing (1) and places its interior valve body (2), and mangetic core assembly (3) then is positioned partially in described valve body (2) chamber, it is characterized in that:
The inlet hole (11) that vertically down stretches is arranged at described valve casing (1) top, the air outlet hole (12) that the side has level to extend toward valve casing (1) medial axis direction, and described two holes (11,12) are located to connect at valve casing (1) inner cavity (23); Described valve body (2) fills up lower half portion of valve casing (1) inner cavity (23), with valve casing (1) same medial axis is arranged, and place, the medial axis of valve body (2) is the cavity volume (20) that vertical through holes constitutes, its hypomere is the cavity volume inlet hole (22) of diameter reduction, there is plunger (32) to slide up and down in the epimere, and the coaxial line ground, top of plunger (32) is connecting an end of valve plate more much bigger than described plunger diameter (31) and pressure spring (33), another free end of this pressure spring (33) then heads on the step of described inlet hole (11) lower edge, described plunger (32), valve plate (31) and pressure spring (33) are formed described mangetic core assembly (3) jointly; The proximal edge position of described valve body (2) also has vertical drainage hole (21);
Described gas circuit drain valve is installed in the filter plant pipeline, opening control valve (F) equates described valve plate (31) two sides air pressure, pressure spring (33) is pushed into upper/lower positions with valve plate (31), cover drainage hole (21), inlet hole (11) and air outlet hole (12) connect, and this is a filter plant backwash state; Close described control valve (F), because described cavity volume inlet hole (22) is communicated with compressed air line, plunger (32) overcomes on the elastic force of pressure spring (33) and moves, close described inlet hole (11), air outlet hole (12) is then via cavity (23) communicated drainage through hole (21), this is the normal working of backwash after finishing, in when, water taking place refluxing, via described cavity (23) from drainage hole (21) directly outside the drain.
2. gas circuit drain valve according to claim 1 is characterized in that: have a circle groove on described plunger (32) the close end cylinder at least, it has been embedded in piston packing (a).
3. gas circuit drain valve according to claim 1 is characterized in that: described valve plate (31) also is equipped with the last sealing gasket (b) that mates with its size in the one side of pressure spring (33).
4. gas circuit drain valve according to claim 1 is characterized in that: described valve plate (31) also is equipped with the lower seal pad (c) that mates with its size in the one side that connects plunger (32).
5. gas circuit drain valve according to claim 1 is characterized in that: have a circle groove on described valve body (2) the close end cylinder at least, it is embedded in valve seals (d).
6. gas circuit drain valve according to claim 1 is characterized in that: fixing with fastening screw (e) between described valve body (2) and the valve casing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201343944U CN201487533U (en) | 2009-08-05 | 2009-08-05 | Air passage drain valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201343944U CN201487533U (en) | 2009-08-05 | 2009-08-05 | Air passage drain valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201487533U true CN201487533U (en) | 2010-05-26 |
Family
ID=42426412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201343944U Expired - Lifetime CN201487533U (en) | 2009-08-05 | 2009-08-05 | Air passage drain valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201487533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135143A (en) * | 2015-06-18 | 2015-12-09 | 山东钢铁股份有限公司 | Pipeline anti-freeze drainer and application method thereof |
| CN116428498A (en) * | 2023-04-14 | 2023-07-14 | 东风汽车股份有限公司 | Get gas drain valve and gas receiver |
-
2009
- 2009-08-05 CN CN2009201343944U patent/CN201487533U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135143A (en) * | 2015-06-18 | 2015-12-09 | 山东钢铁股份有限公司 | Pipeline anti-freeze drainer and application method thereof |
| CN116428498A (en) * | 2023-04-14 | 2023-07-14 | 东风汽车股份有限公司 | Get gas drain valve and gas receiver |
| CN116428498B (en) * | 2023-04-14 | 2025-09-05 | 东风汽车股份有限公司 | Air intake and drainage valve and air storage cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |
|
| CX01 | Expiry of patent term |