CN203560568U - Oblique angle valve with wide pressure application range - Google Patents
Oblique angle valve with wide pressure application range Download PDFInfo
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- CN203560568U CN203560568U CN201320714222.0U CN201320714222U CN203560568U CN 203560568 U CN203560568 U CN 203560568U CN 201320714222 U CN201320714222 U CN 201320714222U CN 203560568 U CN203560568 U CN 203560568U
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- spool
- cylinder
- valve
- valve rod
- fixed cover
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Abstract
The utility model discloses an oblique angle valve with a wide pressure application range. The oblique angle valve comprises a valve core, a valve rod and a cylinder, wherein the cylinder comprises a cylinder body as well as a piston and an reset spring arranged in the cylinder body, two ends of the valve rod are fixedly connected with the valve core and the piston rod of the cylinder respectively, the piston divides the cylinder body into two cavities, one cavity close to the valve core is a compressed air accommodating cavity, the reset spring is arranged in the other cavity, and a through hole penetrating two ends is formed in the valve core; and the valve further comprises an anti-impact spring and a barrel-shaped fixed sleeve. The oblique angle valve adopts a simple cylinder form, and is suitable for a wider compressed gas pressure range.
Description
Technical field
The utility model relates to THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE technical field, particularly relates to a kind of wide pressure adaptation scope mitre valve.
Background technique
Pressure swing adsorption method is a kind of new gas separation, from the beginning of the seventies at the end of the sixties, developed rapidly abroad, its principle is to utilize molecular sieve to the difference of gas with various molecule " absorption " performance, gaseous mixture to be separated, it is to take air as raw material, utilizes a kind of high-effect, high solid absorbent of selecting to the performance of the preferential adsorption of nitrogen and oxygen, airborne nitrogen and oxygen to be separated.
The nucleus equipment of existing pressure swing adsorption method nitrogen-making device adopts two pressure-swing absorbers, and active carbon molecular sieve is set in adsorption tower, two pressure-swing absorbers in the course of the work alternately nitrogen processed to obtain continuous nitrogen stream.Two pressure-swing absorber working staties are switched and are controlled by being arranged on two mitre valves between adsorption tower, and in prior art, the stroke of spool is mainly that the cylinder by being connected with spool is realized, this structural type to cylinder require high.
Model utility content
For the stroke of spool in above-mentioned prior art, be mainly that cylinder by being connected with spool is realized, the require high problem of this structural type to cylinder, the utility model provides a kind of wide pressure adaptation scope mitre valve.
For addressing the above problem, the wide pressure adaptation scope mitre valve that the utility model provides solves problem by following technological points: wide pressure adaptation scope mitre valve, comprise spool, valve rod and cylinder, described cylinder comprises cylinder body, be arranged on piston and Returnning spring in cylinder body, the two ends of described valve rod are fixedly connected with the piston rod of spool and cylinder respectively, described piston is divided into two cavitys by cylinder body, cavity near spool is pressurized air receiving cavity, Returnning spring is arranged in another cavity and is provided with the through hole that runs through its two ends on described spool, also comprise erosion control spring, tubular fixed cover, the two ends of described fixed cover are provided with outside thread, on described cylinder body, be provided with internal thread through hole, one end of fixed cover becomes to be threaded with internal thread through hole, and the center line of fixed cover and the centerline collineation of valve rod, fixed cover is between spool and cylinder body, on described valve rod, be provided with projection, described erosion control spring is located on valve rod, and the two ends of erosion control spring are fixedly connected with fixed cover one end near piston with projection respectively.
Concrete, the utility model is arranged on the mitre valve valve seat on the balance pipe that connects two adsorption towers, when completing, mitre valve all presses work, during any one pressure-swing absorber regeneration, in pressure-swing absorber tower under another one is in running order, gas enters the pressure-swing absorber under reproduced state by the through hole arranging, and in this portion gas the content of nitrogen under general operating mode more than 99%, simultaneously, the two ends of balance pipe are generally fixed on the top of two adsorption towers, by regeneration adsorption tanks top enter high nitrogen content gas by adsorption tower under displace and remain in the oxygen of regeneration in adsorption tanks, to realize good regeneration effect, at spool during in containment station, Returnning spring is in compressive state, erosion control spring is in extended state, the fixed cover arranging is being connected for the utility model and valve seat near spool end, be that the interior threaded hole supporting with described outside thread is set on valve seat, the pressure stress when fixed cover that becomes to be threaded and valve seat are convenient to regulate closed state between spool and valve seat, sealing effect when assurance need to realize balance pipe disconnection, simultaneously easy for installation, be also conducive to reduce to realize the requirement of sealing effect to Returnning spring parameter, the Connecting format of fixed cover and internal thread through hole, is convenient to screw in the degree of depth in internal thread through hole by adjusting fixed cover, realizes spool with respect to the adjusting of sealing surface of seat distance, this initial compression amount that middle Returnning spring is set is convenient to regulate, and can by rotary fixing base, adjust according to the actual pressure of pressurized gas the decrement of Returnning spring.
Further technological scheme is:
Described cylinder is horizontal bar single-acting cylinder, and is also provided with at least 3 O-ring seals along the side of piston.
Horizontal bar single-acting cylinder is simple in structure, and cost is low; The sealability that at least 3 O-ring seals that arrange are intended to further stiffened cylinder suction chamber, is conducive to guarantee the utility model working stability.
Described O-ring seal is O type circle.
O type circle surface friction drag is little and have selfsealings performance, adopts the O-ring seal setting of O type circle, makes piston movement resistance little, and makes pressurized air receiving cavity sealability reliable.
For dwindling volume of the present utility model and simplifying structure of the present utility model, described piston rod and valve rod are set to one.
Also comprise spool nut, described valve rod is one end and is provided with externally threaded multidiameter shaft shape, on described spool, is provided with center hole, and spool is located on valve rod, and spool and valve rod are fixed by spool nut.
Due to the utility model, operating frequency is high in the course of the work, the sealing station of spool and valve seat is because collision frequency is high, cause spool rapid wear, this setting is convenient to can change simply rapidly spool when spool is impaired, further, the material of spool adopts brass, and because brassiness is soft, this is provided with and is beneficial to the difficulty that reduces spool processing.
The outside thread that the two ends of described fixed cover arrange is fine thread.
Fine thread is compared to regular screw threads, and fine thread has better anti-loosening property, and this is provided with to be beneficial to and guarantees the utility model working stability.
The utlity model has following beneficial effect:
1, the utility model is simple in structure, annexation between erosion control spring by arranging, valve rod, fixed cover, and the annexation between fixed cover and cylinder block, can adjust easily the distance between spool and cylinder, be convenient to regulate the decrement of Returnning spring, the utility model is convenient to according to the pressure of pressurized gas in work, obtain suitable spool and the valve seat mutual pressure stress when realizing balance pipe disconnection, like this, realized and adopted simple cylinder form, realized mitre valve and be practically applicable to wider compression pressure scope.
2, by balance pipe on existing pressure-swing absorption apparatus, use on the basis of mitre valve, by a through hole is set on mitre valve spool, make in running order under, in pressure-swing absorber tower under in running order, gas enters the pressure-swing absorber under reproduced state by the through hole arranging, high nitrogen content gas by adsorption tower under displace and remain in the oxygen of regeneration in adsorption tanks, realize good regeneration effect; Meanwhile, because the oxygen overflowing is blown away rapidly, be conducive to improve the speed of overflowing that remains in oxygen in molecular sieve from molecular sieve.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of wide pressure adaptation scope mitre valve described in the utility model.
Figure acceptance of the bid note is respectively: 1, spool, 2, valve rod, 3, fixed cover, 4, cylinder, 5, O-ring seal, 6, piston, 7, Returnning spring, 8, spool nut, 9, erosion control spring.
Embodiment
Below in conjunction with embodiment, the utility model is described in further detail, but structure of the present utility model is not limited only to following examples:
Embodiment 1:
As shown in Figure 1, comprise spool 1, valve rod 2 and cylinder 4, described cylinder 4 comprises cylinder body, be arranged on piston 6 and Returnning spring 7 in cylinder body, the two ends of described valve rod 2 are fixedly connected with the piston rod of cylinder 4 with spool 1 respectively, described piston 6 is divided into two cavitys by cylinder body, cavity near spool 1 is pressurized air receiving cavity, Returnning spring 7 is arranged in another cavity, on described spool 1, be provided with the through hole that runs through its two ends, also comprise erosion control spring 9, tubular fixed cover 3, the two ends of described fixed cover 3 are provided with outside thread, on described cylinder body, be provided with internal thread through hole, one end of fixed cover 3 becomes to be threaded with internal thread through hole, and the centerline collineation of the center line of fixed cover 3 and valve rod 2, fixed cover 3 is between spool 1 and cylinder body, on described valve rod 2, be provided with projection, described erosion control spring 9 is located on valve rod 2, and the two ends of erosion control spring 9 are fixedly connected with fixed cover 3 one end near piston 6 with projection respectively.
Concrete, the utility model is arranged on the mitre valve valve seat on the balance pipe that connects two adsorption towers, when completing, mitre valve all presses work, during any one pressure-swing absorber regeneration, in pressure-swing absorber tower under another one is in running order, gas enters the pressure-swing absorber under reproduced state by the through hole arranging, and in this portion gas the content of nitrogen under general operating mode more than 99%, simultaneously, the two ends of balance pipe are generally fixed on the top of two adsorption towers, by regeneration adsorption tanks top enter high nitrogen content gas by adsorption tower under displace and remain in the oxygen of regeneration in adsorption tanks, to realize good regeneration effect, at spool 1 during in containment station, Returnning spring 7 is in compressive state, erosion control spring 7 is in extended state, the fixed cover 3 arranging is being connected for the utility model and valve seat near spool 1 end, be that the interior threaded hole supporting with described outside thread is set on valve seat, the pressure stress when fixed cover 3 that becomes to be threaded and valve seat are convenient to regulate closed state between spool 1 and valve seat, sealing effect when assurance need to realize balance pipe disconnection, simultaneously easy for installation, be also conducive to reduce to realize the requirement of sealing effect to Returnning spring 7 parameters, the Connecting format of fixed cover 3 and internal thread through hole, is convenient to, by adjusting the degree of depth in fixed cover 3 screw-in internal thread through hole, realize spool 1 with respect to the adjusting of sealing surface of seat distance, this initial compression amount that middle Returnning spring is set is convenient to regulate, and can by rotary fixing base, adjust according to the actual pressure of pressurized gas the decrement of Returnning spring.
Embodiment 2:
The present embodiment is further improved on embodiment 1 basis, as shown in Figure 1, described cylinder 4 is horizontal bar single-acting cylinder, and the side along piston 6 is also provided with at least 3 O-ring seals 5, O type circle surface friction drag is little and have a selfsealings performance, adopt the O-ring seal 5 of O type circle to arrange, make piston 6 resistance to motion little, and make pressurized air receiving cavity sealability reliable.
For dwindling volume of the present utility model and simplifying structure of the present utility model, described piston rod and valve rod 2 are set to one.
Also comprise spool nut 8, described valve rod 2 is one end and is provided with externally threaded multidiameter shaft shape, on described spool 1, is provided with center hole, and spool 1 is located on valve rod 2, and spool 1 is fixing by spool nut 8 with valve rod 2.
Horizontal bar single-acting cylinder is simple in structure, and cost is low; The sealability that at least 3 O-ring seals 5 that arrange are intended to further stiffened cylinder 4 suction chambers, is conducive to guarantee the utility model working stability.
Due to the utility model, operating frequency is high in the course of the work, the sealing station of spool 1 and valve seat is because collision frequency is high, cause spool 1 rapid wear, this setting is convenient to can change simply rapidly spool 1 when spool 1 is impaired, further, the material of spool 1 adopts brass, and because brassiness is soft, this is provided with and is beneficial to the difficulty that reduces spool 1 processing.
Embodiment 3:
The present embodiment is further qualified on embodiment 1 basis, and as shown in Figure 1, the outside thread that the two ends of described fixed cover 3 arrange is fine thread.
Fine thread is compared to regular screw threads, and fine thread has better anti-loosening property, and this is provided with to be beneficial to and guarantees the utility model working stability.
Claims (6)
1. wide pressure adaptation scope mitre valve, comprise spool (1), valve rod (2) and cylinder (4), described cylinder (4) comprises cylinder body, be arranged on piston (6) and Returnning spring (7) in cylinder body, the two ends of described valve rod (2) are fixedly connected with the piston rod of cylinder (4) with spool (1) respectively, it is characterized in that, described piston (6) is divided into two cavitys by cylinder body, cavity near spool (1) is pressurized air receiving cavity, Returnning spring (7) is arranged in another cavity, described spool is provided with the through hole that runs through its two ends on (1), also comprise erosion control spring (9), tubular fixed cover (3), the two ends of described fixed cover (3) are provided with outside thread, on described cylinder body, be provided with internal thread through hole, one end of fixed cover (3) becomes to be threaded with internal thread through hole, and the centerline collineation of the center line of fixed cover (3) and valve rod (2), fixed cover (3) is positioned between spool (1) and cylinder body, described valve rod is provided with projection on (2), described erosion control spring (9) is located on valve rod (2), and the two ends of erosion control spring (9) are fixedly connected with fixed cover (3) one end near piston (6) with projection respectively.
2. wide pressure adaptation scope mitre valve according to claim 1, is characterized in that, described cylinder (4) is horizontal bar single-acting cylinder, and is also provided with at least 3 O-ring seals (5) along the side of piston (6).
3. wide pressure adaptation scope mitre valve according to claim 2, is characterized in that, described O-ring seal (5) is O type circle.
4. wide pressure adaptation scope mitre valve according to claim 1, is characterized in that, described piston rod and valve rod (2) are set to one.
5. wide pressure adaptation scope mitre valve according to claim 1, it is characterized in that, also comprise spool nut (8), described valve rod (2) is one end and is provided with externally threaded multidiameter shaft shape, described spool is provided with center hole on (1), it is upper that spool (1) is located in valve rod (2), and spool (1) is fixing by spool nut (8) with valve rod (2).
6. wide pressure adaptation scope mitre valve according to claim 1, is characterized in that, the outside thread that the two ends of described fixed cover (3) arrange is fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714222.0U CN203560568U (en) | 2013-11-14 | 2013-11-14 | Oblique angle valve with wide pressure application range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320714222.0U CN203560568U (en) | 2013-11-14 | 2013-11-14 | Oblique angle valve with wide pressure application range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560568U true CN203560568U (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320714222.0U Expired - Fee Related CN203560568U (en) | 2013-11-14 | 2013-11-14 | Oblique angle valve with wide pressure application range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633241A (en) * | 2013-11-14 | 2015-05-20 | 成都振中电气有限公司 | Oblique angle valve adaptive to pressure and convenient to adjust |
-
2013
- 2013-11-14 CN CN201320714222.0U patent/CN203560568U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633241A (en) * | 2013-11-14 | 2015-05-20 | 成都振中电气有限公司 | Oblique angle valve adaptive to pressure and convenient to adjust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20141114 |
|
| EXPY | Termination of patent right or utility model |