CN104633246A - Pressure equalizing bevel angle valve structure of nitrogen-making device - Google Patents
Pressure equalizing bevel angle valve structure of nitrogen-making device Download PDFInfo
- Publication number
- CN104633246A CN104633246A CN201310563312.9A CN201310563312A CN104633246A CN 104633246 A CN104633246 A CN 104633246A CN 201310563312 A CN201310563312 A CN 201310563312A CN 104633246 A CN104633246 A CN 104633246A
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- Prior art keywords
- spool
- valve
- nitrogen
- making device
- cylinder
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention discloses a pressure equalizing bevel angle valve structure of a nitrogen-making device. The pressure equalizing bevel angle valve structure comprises a valve element (1), a valve rod (2) and an air cylinder (4), the air cylinder (4) comprises a cylinder body, a piston (6) and a return spring (7), the piston (6) and the return spring (7) are arranged in the cylinder body, the two ends of the valve rod (2) are fixedly connected with the valve element (1) and a piston rod of the air cylinder (4), and the valve element (1) is provided with a through hole penetrating through the two ends of the valve element (1). The pressure equalizing bevel angle valve structure is beneficial for improving the regeneration effect of pressure swing absorption towers and shortening regeneration time.
Description
Technical field
The present invention relates to THE PRESSURE SWING ADSORPTION NITROGEN GENERATING DEVICE technical field, particularly relating to a kind of nitrogen-making device with all pressing mitre valve.
Background technique
Pressure swing adsorption method is a kind of new gas separation, developed rapidly abroad from the beginning of the seventies at the end of the sixties, its principle utilizes molecular sieve to be separated by gaseous mixture the difference of gas with various molecule " absorption " performance, it is raw material with air, utilizes a kind of high-effect, high solid absorbent selected to the performance of the preferential adsorption of nitrogen and oxygen the nitrogen in air and oxygen separating out.
The many employings of nucleus equipment two pressure-swing absorbers of existing pressure swing adsorption method nitrogen-making device, arrange active carbon molecular sieve in adsorption tower, two pressure-swing absorbers replace nitrogen processed in the course of the work to obtain continuous print nitrogen stream.Two pressure-swing absorber working staties switchings are controlled by the mitre valve be arranged between two adsorption towers, in prior art, the adsorption tower being in reproduced state keeps communicating with air, oxygen in molecular sieve in it overflows to complete regenerative process, but the oxygen of separating out in this process can be trapped in the space in regenerative adsorption tower all the time, is unfavorable for the adsorptive power of next adsorptive process.
Summary of the invention
Keep communicating with air for the adsorption tower being in reproduced state in above-mentioned prior art, oxygen in molecular sieve in it overflows to complete regenerative process, but the oxygen of separating out in this process can be trapped in the space in regenerative adsorption tower all the time, being unfavorable for the problem of the adsorptive power of next adsorptive process, the invention provides a kind of nitrogen-making device with all pressing mitre valve.
For solving the problem, nitrogen-making device provided by the invention solves problem with all pressing mitre valve by following technological points: nitrogen-making device is with all pressing mitre valve, comprise spool, valve rod and cylinder, described cylinder comprises cylinder body, be arranged on piston in cylinder body and Returnning spring, the two ends of described valve rod are fixedly connected with the piston rod of cylinder with spool respectively, described spool are provided with the through hole running through its two ends.
Concrete, the present invention is arranged on the mitre valve valve seat on the balance pipe of connection two adsorption towers, all work is pressed when mitre valve completes, during the regeneration of any one pressure-swing absorber, in pressure-swing absorber tower under another one is in running order, gas is entered the pressure-swing absorber under reproduced state by the through hole arranged, and in this portion gas the content of nitrogen under general operating mode at least more than 99%, simultaneously, the two ends of balance pipe are generally fixed on the top of two adsorption towers, by regenerative adsorption tank top enter high nitrogen content gas by adsorption tower under displace the oxygen remained in regenerative adsorption tank, to realize good regeneration effect.
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 structure is simple, and cost is low; At least 3 O-ring seals arranged are intended to the sealability of further stiffened cylinder suction chamber, are conducive to ensureing working stability of the present invention.
For reducing volume of the present invention and simplifying structure of the present invention, described piston rod and valve rod are set to one.
Also comprise spool nut, described valve rod is that one end is provided with externally threaded ladder shaft-like, and 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 present invention, operating frequency is high in the course of the work, the sealing station of spool and valve seat due to collision frequency high, cause spool rapid wear, this setting is convenient to change spool simply rapidly when spool is impaired, further, the material of spool adopts brass, and because brassiness is soft, this is provided with the difficulty being beneficial to and reducing spool processing.
Also comprise tubular fixed cover, one end of described fixed cover is fixedly connected on cylinder body, and the other end of fixed cover is provided with outside thread, and the centerline collineation of the center line of fixed cover and valve rod, fixed cover is between spool and cylinder body.
The fixed cover arranged is used for the connection of the present invention and valve seat, namely valve seat arranges the interior threaded hole supporting with described outside thread, the pressure stress when fixed cover becoming to be threaded and valve seat are convenient to regulate closed state between spool and valve seat, ensures to need to realize sealing effect when balance pipe disconnects; Simultaneously easy for installation; Also be conducive to reducing to realize the requirement of sealing effect to Returnning spring parameter.
Described outside thread 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 ensures working stability of the present invention.
The present invention has following beneficial effect:
Structure of the present invention is simple, on basis by balance pipe mitre valve on existing pressure-swing absorption apparatus, by arranging a through hole on mitre valve spool, make in running order under, in pressure-swing absorber tower under in running order, gas is entered the pressure-swing absorber under reproduced state by the through hole arranged, high nitrogen content gas by adsorption tower under displace the oxygen remained in regenerative adsorption tank, realize good regeneration effect; Meanwhile, because the oxygen overflowed from molecular sieve is blown away rapidly, be conducive to improving the spilling speed remaining in oxygen in molecular sieve.
Accompanying drawing explanation
Fig. 1 is the nitrogen-making device of the present invention structural representation of all pressing a mitre valve specific embodiment.
Figure acceptance of the bid note is respectively: 1, spool, and 2, valve rod, 3, fixed cover, 4, cylinder, 5, O-ring seal, 6, piston, 7, Returnning spring, 8, spool nut.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but structure of the present invention 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 in cylinder body and Returnning spring 7, and the two ends of described valve rod 2 are fixedly connected with the piston rod of spool 1 with cylinder 4 respectively, and described spool 1 is provided with the through hole running through its two ends.
Concrete, the present invention is arranged on the mitre valve valve seat on the balance pipe of connection two adsorption towers, all work is pressed when mitre valve completes, during the regeneration of any one pressure-swing absorber, in pressure-swing absorber tower under another one is in running order, gas is entered the pressure-swing absorber under reproduced state by the through hole arranged, and in this portion gas the content of nitrogen under general operating mode at least more than 99%, simultaneously, the two ends of balance pipe are generally fixed on the top of two adsorption towers, by regenerative adsorption tank top enter high nitrogen content gas by adsorption tower under displace the oxygen remained in regenerative adsorption tank, to realize good regeneration effect.
Embodiment 2:
The present embodiment is further improved on the basis of embodiment 1, and as shown in Figure 1, 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.
For reducing volume of the present invention and simplifying structure of the present invention, described piston rod and valve rod 2 are set to one.
Also comprise spool nut 8, described valve rod 2 is provided with externally threaded ladder shaft-like in one end, and described spool 1 is provided with center hole, and spool 1 is located on valve rod 2, and spool 1 is fixed by spool nut 8 with valve rod 2.
Horizontal bar single-acting cylinder structure is simple, and cost is low; At least 3 O-ring seals 5 arranged are intended to the sealability of further stiffened cylinder 4 suction chamber, are conducive to ensureing working stability of the present invention.
Due to the present invention, operating frequency is high in the course of the work, the sealing station of spool 1 and valve seat due to collision frequency high, cause spool 1 rapid wear, this setting is convenient to can change spool 1 simply rapidly when spool 1 is impaired, further, the material of spool 1 adopts brass, and because brassiness is soft, this is provided with the difficulty being beneficial to and reducing spool 1 and process.
Embodiment 3:
The present embodiment is further qualified on the basis of embodiment 2, as shown in Figure 1, also comprise tubular fixed cover 3, one end of described fixed cover 3 is fixedly connected on cylinder body, the other end of fixed cover 3 is provided with outside thread, 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.
Described outside thread is fine thread.
The fixed cover 3 arranged is for the connection of the present invention and valve seat, namely valve seat arranges the interior threaded hole supporting with described outside thread, the pressure stress when fixed cover 3 becoming to be threaded and valve seat are convenient to regulate closed state between spool and valve seat, ensures to need to realize sealing effect when balance pipe disconnects; Simultaneously easy for installation; Also be conducive to reducing to realize the requirement of sealing effect to Returnning spring 7 parameter.
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 ensures working stability of the present invention.
Claims (6)
1. nitrogen-making device is with all pressing mitre valve, comprise spool (1), valve rod (2) and cylinder (4), described cylinder (4) comprises cylinder body, be arranged on piston (6) in cylinder body and Returnning spring (7), the two ends of described valve rod (2) are fixedly connected with the piston rod of spool (1) with cylinder (4) respectively, it is characterized in that, (1) is provided with the through hole running through its two ends to described spool.
2. nitrogen-making device according to claim 1 is with all pressing mitre valve, it 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. nitrogen-making device according to claim 1 is with all pressing mitre valve, it is characterized in that, described piston rod and valve rod (2) are set to one.
4. nitrogen-making device according to claim 1 is with all pressing mitre valve, it is characterized in that, also comprise spool nut (8), described valve rod (2) is provided with externally threaded ladder shaft-like in one end, (1) is provided with center hole to described spool, spool (1) is located on valve rod (2), and spool (1) is fixed by spool nut (8) with valve rod (2).
5. nitrogen-making device according to claim 1 is with all pressing mitre valve, it is characterized in that, also comprise tubular fixed cover (3), one end of described fixed cover (3) is fixedly connected on cylinder body, the other end of fixed cover (3) is provided with outside thread, 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.
6. nitrogen-making device according to claim 5 is with all pressing mitre valve, it is characterized in that, described outside thread is fine thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563312.9A CN104633246B (en) | 2013-11-14 | 2013-11-14 | Nitrogen-making device is with pressing mitre valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310563312.9A CN104633246B (en) | 2013-11-14 | 2013-11-14 | Nitrogen-making device is with pressing mitre valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104633246A true CN104633246A (en) | 2015-05-20 |
| CN104633246B CN104633246B (en) | 2017-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310563312.9A Active CN104633246B (en) | 2013-11-14 | 2013-11-14 | Nitrogen-making device is with pressing mitre valve |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815692A (en) * | 1987-03-17 | 1989-03-28 | Gerard Loiseau | Tap for a cylinder of gas under pressure |
| CN101377245A (en) * | 2008-09-24 | 2009-03-04 | 上海宏翔机械制造有限公司 | Pneumatic two-position two-way piston type angle seat valve |
| CN101614282A (en) * | 2009-08-03 | 2009-12-30 | 杭州方圆塑料机械有限公司 | Differential type pneumatic angle pedestal valve |
| CN102878302A (en) * | 2012-05-31 | 2013-01-16 | 青岛海菲勒气控阀门有限公司 | Pneumatically controlled angle seat valve |
| CN203215014U (en) * | 2013-01-28 | 2013-09-25 | 浙江康赛特阀门有限公司 | Bidirectional flow pneumatic angle seat valve |
| CN203560566U (en) * | 2013-11-14 | 2014-04-23 | 成都振中电气有限公司 | Pressure-equalizing oblique angle valve of nitrogen-making device |
-
2013
- 2013-11-14 CN CN201310563312.9A patent/CN104633246B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815692A (en) * | 1987-03-17 | 1989-03-28 | Gerard Loiseau | Tap for a cylinder of gas under pressure |
| CN101377245A (en) * | 2008-09-24 | 2009-03-04 | 上海宏翔机械制造有限公司 | Pneumatic two-position two-way piston type angle seat valve |
| CN101614282A (en) * | 2009-08-03 | 2009-12-30 | 杭州方圆塑料机械有限公司 | Differential type pneumatic angle pedestal valve |
| CN102878302A (en) * | 2012-05-31 | 2013-01-16 | 青岛海菲勒气控阀门有限公司 | Pneumatically controlled angle seat valve |
| CN203215014U (en) * | 2013-01-28 | 2013-09-25 | 浙江康赛特阀门有限公司 | Bidirectional flow pneumatic angle seat valve |
| CN203560566U (en) * | 2013-11-14 | 2014-04-23 | 成都振中电气有限公司 | Pressure-equalizing oblique angle valve of nitrogen-making device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104633246B (en) | 2017-11-21 |
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Address after: 610000 Sichuan city of Chengdu Province Economic and Technological Development Zone Zhenzhong Road No. 1 Patentee after: CHENGDU ZHENZHONG ELECTRIC GROUP Co.,Ltd. Address before: Zhenzhong road Chengdu economic and Technological Development Zone Longquanyi District Sichuan city of Chengdu province No. 1 610000 Patentee before: CHENGDU ZHENZHONG ELECTRIC Co.,Ltd. |
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Effective date of registration: 20211229 Address after: 215000 No.78 Tongxin Road, Tongan town, Suzhou high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU SINCE GAS SYSTEM CO.,LTD. Address before: 610000 1 Zhen Zhong Road, Chengdu economic and Technological Development Zone, Sichuan Patentee before: CHENGDU ZHENZHONG ELECTRIC GROUP Co.,Ltd. |
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Effective date of registration: 20230215 Address after: No. 87 Tongxin Road, Tong'an Town, Suzhou High-tech Zone, Suzhou, Jiangsu 215000 Patentee after: Suzhou Xinsi Gas Technology Co.,Ltd. Address before: 215000 No.78 Tongxin Road, Tongan town, Suzhou high tech Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU SINCE GAS SYSTEM CO.,LTD. |
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